Merge branch 'master' into staging

93 files changed, 1788 insertions, 846 deletions

diff --git a/doc/contributing.texi b/doc/contributing.texi
index 9d45becf86..87d001c858 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -12,7 +12,7 @@ particularly welcome help on packaging (@pxref{Packaging Guidelines}).
 We want to provide a warm, friendly, and harassment-free environment, so
 that anyone can contribute to the best of their abilities.  To this end
 our project uses a ``Contributor Covenant'', which was adapted from
-@url{http://contributor-covenant.org/}.  You can find a local version in
+@url{https://contributor-covenant.org/}.  You can find a local version in
 the @file{CODE-OF-CONDUCT} file in the source tree.
 
 Contributors are not required to use their legal name in patches and
diff --git a/doc/guix.texi b/doc/guix.texi
index fab9159530..1af80849cb 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -74,6 +74,7 @@ Copyright @copyright{} 2019, 2020 Simon Tournier@*
 Copyright @copyright{} 2020 Wiktor Żelazny@*
 Copyright @copyright{} 2020 Damien Cassou@*
 Copyright @copyright{} 2020 Jakub Kądziołka@*
+Copyright @copyright{} 2020 Jack Hill@*
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or
@@ -21008,6 +21009,10 @@ and several @code{domains}.
 Mandatory email used for registration, recovery contact, and important
 account notifications.
 
+@item @code{server} (default: @code{#f})
+Optional URL of ACME server.  Setting this overrides certbot's default,
+which is the Let's Encrypt server.
+
 @item @code{rsa-key-size} (default: @code{2048})
 Size of the RSA key.
 
@@ -22445,6 +22450,9 @@ Only evaluate specifications and build derivations once.
 When substituting a pre-built binary fails, fall back to building
 packages locally.
 
+@item @code{extra-options} (default: @code{'()})
+Extra options to pass when running the Cuirass processes.
+
 @item @code{cuirass} (default: @code{cuirass})
 The Cuirass package to use.
 @end table
@@ -25245,6 +25253,12 @@ If set, this is the @code{getmail-retriever-configuration} object with
 which to configure getmail to fetch mail from the guix-commits mailing
 list.
 
+@item @code{extra-options} (default: @var{'()})
+Extra command line options for @code{guix-data-service}.
+
+@item @code{extra-process-jobs-options} (default: @var{'()})
+Extra command line options for @code{guix-data-service-process-jobs}.
+
 @end table
 @end deftp
 
diff --git a/gnu/local.mk b/gnu/local.mk
index a350174ee2..3730b0d516 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -714,10 +714,11 @@ dist_patch_DATA =						\
   %D%/packages/patches/aegisub-boost68.patch                    \
   %D%/packages/patches/agg-am_c_prototype.patch			\
   %D%/packages/patches/akonadi-paths.patch		\
-  %D%/packages/patches/akonadi-Revert-Make-installation-properly-relocatabl.patch \
+  %D%/packages/patches/akonadi-Revert-Make-installation-properly-relo.patch \
   %D%/packages/patches/akonadi-timestamps.patch		\
   %D%/packages/patches/allegro-mesa-18.2.5-and-later.patch	\
   %D%/packages/patches/amule-crypto-6.patch			\
+  %D%/packages/patches/anki-mpv-args.patch			\
   %D%/packages/patches/antiword-CVE-2014-8123.patch			\
   %D%/packages/patches/antlr3-3_1-fix-java8-compilation.patch	\
   %D%/packages/patches/antlr3-3_3-fix-java8-compilation.patch	\
@@ -979,7 +980,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/guile-2.2-skip-oom-test.patch            \
   %D%/packages/patches/guile-default-utf8.patch			\
   %D%/packages/patches/guile-gdbm-ffi-support-gdbm-1.14.patch	\
-  %D%/packages/patches/guile-finalization-crash.patch		\
   %D%/packages/patches/guile-linux-syscalls.patch		\
   %D%/packages/patches/guile-present-coding.patch		\
   %D%/packages/patches/guile-relocatable.patch			\
@@ -1114,7 +1114,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/libmpeg2-global-symbol-test.patch	\
   %D%/packages/patches/libmygpo-qt-fix-qt-5.11.patch		\
   %D%/packages/patches/libmygpo-qt-missing-qt5-modules.patch	\
-  %D%/packages/patches/libseccomp-open-aarch64.patch		\
   %D%/packages/patches/libsndfile-armhf-type-checks.patch	\
   %D%/packages/patches/libsndfile-CVE-2017-8361-8363-8365.patch	\
   %D%/packages/patches/libsndfile-CVE-2017-8362.patch		\
@@ -1255,7 +1254,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/sdl-pango-api_additions.patch		\
   %D%/packages/patches/sdl-pango-blit_overflow.patch		\
   %D%/packages/patches/sdl-pango-fillrect_crash.patch		\
-  %D%/packages/patches/sdl-pango-fix-explicit-SDLPango_CopyFTBitmapToSurface.patch	\
+  %D%/packages/patches/sdl-pango-fix-explicit-SDLPango_CopyFTBitmapTo.patch	\
   %D%/packages/patches/sdl-pango-matrix_declarations.patch	\
   %D%/packages/patches/sdl-pango-sans-serif.patch		\
   %D%/packages/patches/patchutils-test-perms.patch		\
@@ -1348,6 +1347,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/qemu-CVE-2020-1711.patch			\
   %D%/packages/patches/qemu-CVE-2020-7039.patch			\
   %D%/packages/patches/qemu-CVE-2020-7211.patch			\
+  %D%/packages/patches/qemu-CVE-2020-8608.patch			\
   %D%/packages/patches/qemu-fix-documentation-build-failure.patch	\
   %D%/packages/patches/qrcodegen-cpp-make-install.patch		\
   %D%/packages/patches/qt4-ldflags.patch			\
@@ -1406,7 +1406,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/snappy-add-O2-flag-in-CmakeLists.txt.patch	\
   %D%/packages/patches/sooperlooper-build-with-wx-30.patch 	\
   %D%/packages/patches/soundconverter-remove-gconf-dependency.patch	\
-  %D%/packages/patches/spice-fix-test-armhf.patch		\
   %D%/packages/patches/steghide-fixes.patch			\
   %D%/packages/patches/suitesparse-mongoose-cmake.patch		\
   %D%/packages/patches/superlu-dist-awpm-grid.patch		\
@@ -1488,7 +1487,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/wicd-wpa2-ttls.patch			\
   %D%/packages/patches/wmctrl-64-fix.patch			\
   %D%/packages/patches/wmfire-update-for-new-gdk-versions.patch	\
-  %D%/packages/patches/woff2-libbrotli.patch			\
   %D%/packages/patches/wordnet-CVE-2008-2149.patch			\
   %D%/packages/patches/wordnet-CVE-2008-3908-pt1.patch			\
   %D%/packages/patches/wordnet-CVE-2008-3908-pt2.patch			\
diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index 3079114492..51a74302e4 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -211,10 +211,10 @@ and provides a \"top-like\" mode (monitoring).")
      `(("pkg-config" ,pkg-config)
 
        ;; This is the Guile we use as a cross-compiler...
-       ("guile" ,guile-2.2/bug-fix)))
+       ("guile" ,guile-2.2.7)))
     (inputs
      ;; ... and this is the one that appears in shebangs when cross-compiling.
-     `(("guile" ,guile-2.2/bug-fix)          ;for <https://bugs.gnu.org/37757>
+     `(("guile" ,guile-2.2.7)                ;for <https://bugs.gnu.org/37757>
 
        ;; The 'shepherd' command uses Readline when used interactively.  It's
        ;; an unusual use case though, so we don't propagate it.
diff --git a/gnu/packages/assembly.scm b/gnu/packages/assembly.scm
index 1ad49baf8e..0fdddc88e9 100644
--- a/gnu/packages/assembly.scm
+++ b/gnu/packages/assembly.scm
@@ -111,7 +111,7 @@ has strong support for macros.")
     (inputs
      `(("python" ,python-wrapper)
        ("xmlto" ,xmlto)))
-    (home-page "http://yasm.tortall.net/")
+    (home-page "https://yasm.tortall.net/")
     (synopsis "Rewrite of the NASM assembler")
     (description
      "Yasm is a complete rewrite of the NASM assembler.
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index 2406aa16b2..6056ded2fb 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -45,26 +45,14 @@
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (gnu packages audio)
-  #:use-module (guix packages)
-  #:use-module (guix download)
-  #:use-module (guix git-download)
-  #:use-module (guix utils)
-  #:use-module ((guix licenses) #:prefix license:)
-  #:use-module (guix build-system gnu)
-  #:use-module (guix build-system waf)
-  #:use-module (guix build-system trivial)
-  #:use-module (guix build-system cmake)
-  #:use-module (guix build-system meson)
-  #:use-module (guix build-system python)
-  #:use-module (guix build-system glib-or-gtk)
   #:use-module (gnu packages)
   #:use-module (gnu packages algebra)
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages avahi)
-  #:use-module (gnu packages boost)
   #:use-module (gnu packages backup)
   #:use-module (gnu packages base)
   #:use-module (gnu packages bison)
+  #:use-module (gnu packages boost)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages curl)
@@ -78,25 +66,29 @@
   #:use-module (gnu packages gcc)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
-  #:use-module (gnu packages gtk)
   #:use-module (gnu packages gnome)
   #:use-module (gnu packages gnunet) ; libmicrohttpd
   #:use-module (gnu packages gperf)
+  #:use-module (gnu packages gtk)
+  #:use-module (gnu packages guile)
   #:use-module (gnu packages icu4c)
   #:use-module (gnu packages image)
-  #:use-module (gnu packages ncurses)
-  #:use-module (gnu packages onc-rpc)
-  #:use-module (gnu packages qt)
   #:use-module (gnu packages libbsd)
-  #:use-module (gnu packages linux)
   #:use-module (gnu packages libusb)
+  #:use-module (gnu packages linux)
   #:use-module (gnu packages llvm)
+  #:use-module (gnu packages maths)
   #:use-module (gnu packages mp3) ;taglib
+  #:use-module (gnu packages multiprecision)
+  #:use-module (gnu packages music)
+  #:use-module (gnu packages ncurses)
+  #:use-module (gnu packages onc-rpc)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages pulseaudio)  ;libsndfile, libsamplerate
   #:use-module (gnu packages python)
   #:use-module (gnu packages python-xyz)
+  #:use-module (gnu packages qt)
   #:use-module (gnu packages rdf)
   #:use-module (gnu packages readline)
   #:use-module (gnu packages sdl)
@@ -110,9 +102,18 @@
   #:use-module (gnu packages xiph)
   #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg)
-  #:use-module (gnu packages maths)
-  #:use-module (gnu packages multiprecision)
-  #:use-module (gnu packages music)
+  #:use-module (guix build-system cmake)
+  #:use-module (guix build-system glib-or-gtk)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix build-system meson)
+  #:use-module (guix build-system python)
+  #:use-module (guix build-system trivial)
+  #:use-module (guix build-system waf)
+  #:use-module (guix download)
+  #:use-module (guix git-download)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (guix utils)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26))
 
@@ -3930,11 +3931,22 @@ as is the case with audio plugins.")
        (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
        #:phases
        (modify-phases %standard-phases
+         (delete 'configure)            ; no configure script
          (add-before 'build 'set-CC-variable-and-show-features
            (lambda _
              (setenv "CC" "gcc")
              (invoke "make" "features")))
-         (delete 'configure))))
+         (add-after 'install 'make-carla-executable
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (chmod (string-append out "/share/carla/carla") #o555)
+               #t)))
+         (add-after 'install 'wrap-executables
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (wrap-script (string-append out "/bin/carla")
+                            `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+               #t))))))
     (inputs
      `(("alsa-lib" ,alsa-lib)
        ("ffmpeg" ,ffmpeg)
@@ -3952,7 +3964,10 @@ as is the case with audio plugins.")
        ("python-wrapper" ,python-wrapper)
        ("libx11" ,libx11)
        ("qtbase" ,qtbase)
-       ("zlib" ,zlib)))
+       ("zlib" ,zlib)
+
+       ;; For WRAP-SCRIPT above.
+       ("guile" ,guile-2.2)))
     (native-inputs
      `(("pkg-config" ,pkg-config)))
     (home-page "https://kx.studio/Applications:Carla")
diff --git a/gnu/packages/bioconductor.scm b/gnu/packages/bioconductor.scm
index 63687036fc..167cb00ece 100644
--- a/gnu/packages/bioconductor.scm
+++ b/gnu/packages/bioconductor.scm
@@ -4026,14 +4026,14 @@ position-specific scores within R and Bioconductor.")
 (define-public r-atacseqqc
   (package
     (name "r-atacseqqc")
-    (version "1.10.2")
+    (version "1.10.3")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "ATACseqQC" version))
        (sha256
         (base32
-         "0dzrizacy3br8fiy1vnsl5zf242lg1hqv9dyv5ayqh2n480is57f"))))
+         "18zf90iksglbs13cwr4jjwsv332a19lf4bpdmy69jz8bpwrklv22"))))
     (properties `((upstream-name . "ATACseqQC")))
     (build-system r-build-system)
     (propagated-inputs
@@ -4055,6 +4055,8 @@ position-specific scores within R and Bioconductor.")
        ("r-rsamtools" ,r-rsamtools)
        ("r-rtracklayer" ,r-rtracklayer)
        ("r-s4vectors" ,r-s4vectors)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr)))
     (home-page "https://bioconductor.org/packages/ATACseqQC/")
     (synopsis "ATAC-seq quality control")
     (description
@@ -4315,14 +4317,14 @@ visualization with image data.")
 (define-public r-yamss
   (package
     (name "r-yamss")
-    (version "1.12.0")
+    (version "1.12.1")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "yamss" version))
        (sha256
         (base32
-         "1n49a2vg1667wycrjww29xfafngllvpb5nq5wy6pgn0akva91nky"))))
+         "12jr7hbrwhb1gfjadj1024hv80ra22miy46dn40nmsrbklkfn3rw"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-biocgenerics" ,r-biocgenerics)
@@ -4693,14 +4695,14 @@ based on @dfn{Continuous Wavelet Transform} (CWT).")
 (define-public r-xcms
   (package
     (name "r-xcms")
-    (version "3.8.1")
+    (version "3.8.2")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "xcms" version))
        (sha256
         (base32
-         "18iglvlvlxrdwn2apdvihj9jxmx0kwm5z37rml67xcj9sfdi3bjb"))))
+         "0bfl56v3l6k31i11l09nx1yqfjy6z5yragm6k83z4w0mpgk18y7g"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-biobase" ,r-biobase)
@@ -5943,14 +5945,14 @@ delete entire rows with missing data.")
 (define-public r-depecher
   (package
     (name "r-depecher")
-    (version "1.2.1")
+    (version "1.2.2")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "DepecheR" version))
        (sha256
         (base32
-         "08ja6ayvbax9m3x9w3xzi72z97miiha2nbsild1gp77n6sgn5i35"))))
+         "199j2kw0xnw7y4v1gakm2jgyc7zzlj8xh0570f2yjq55gp1kggbm"))))
     (properties `((upstream-name . "DepecheR")))
     (build-system r-build-system)
     (propagated-inputs
@@ -5970,6 +5972,8 @@ delete entire rows with missing data.")
        ("r-reshape2" ,r-reshape2)
        ("r-robustbase" ,r-robustbase)
        ("r-viridis" ,r-viridis)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr)))
     (home-page "https://bioconductor.org/packages/DepecheR/")
     (synopsis "Identify traits of clusters in high-dimensional entities")
     (description
@@ -7290,14 +7294,14 @@ access.")
 (define-public r-multiassayexperiment
   (package
     (name "r-multiassayexperiment")
-    (version "1.12.3")
+    (version "1.12.4")
     (source
      (origin
        (method url-fetch)
        (uri (bioconductor-uri "MultiAssayExperiment" version))
        (sha256
         (base32
-         "1vf6l88j3n6109j6sd08wfqxqpj2k20dvr8ll9zl1szsn18b4gny"))))
+         "01cnp00y5bk551c8gqgqp5468dvccg72i0rvh5cxgbx1c42zy6xn"))))
     (properties
      `((upstream-name . "MultiAssayExperiment")))
     (build-system r-build-system)
diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 0c12e7c874..035a7bb808 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -6536,31 +6536,56 @@ Cuffdiff or Ballgown programs.")
 (define-public taxtastic
   (package
     (name "taxtastic")
-    (version "0.8.5")
+    (version "0.8.11")
     (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "taxtastic" version))
+              ;; The Pypi version does not include tests.
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/fhcrc/taxtastic.git")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
               (sha256
                (base32
-                "03pysw79lsrvz4lwzis88j15067ffqbi4cid5pqhrlxmd6bh8rrk"))))
+                "1sv8mkg64jn7zdwf1jj71c16686yrwxk0apb1l8sjszy9p166g0p"))))
     (build-system python-build-system)
     (arguments
-     `(#:python ,python-2
-       #:phases
+     `(#:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'prepare-directory
+           (lambda _
+             ;; The git checkout must be writable for tests.
+             (for-each make-file-writable (find-files "."))
+             ;; This test fails, but the error is not caught by the test
+             ;; framework, so the tests fail...
+             (substitute* "tests/test_taxit.py"
+               (("self.cmd_fails\\(''\\)")
+                "self.cmd_fails('nothing')"))
+             ;; This version file is expected to be created with git describe.
+             (mkdir-p "taxtastic/data")
+             (with-output-to-file "taxtastic/data/ver"
+               (lambda () (display ,version)))
+             #t))
+         (add-after 'unpack 'python37-compatibility
+           (lambda _
+             (substitute* "taxtastic/utils.py"
+               (("import csv") "import csv, errno")
+               (("os.errno") "errno"))
+             #t))
          (replace 'check
-           (lambda _ (invoke "python" "-m" "unittest" "discover" "-v") #t)))))
+           ;; Note, this fails to run with "-v" as it tries to write to a
+           ;; closed output stream.
+           (lambda _ (invoke "python" "-m" "unittest") #t)))))
     (propagated-inputs
-     `(("python-sqlalchemy" ,python2-sqlalchemy)
-       ("python-decorator" ,python2-decorator)
-       ("python-biopython" ,python2-biopython)
-       ("python-pandas" ,python2-pandas)
-       ("python-psycopg2" ,python2-psycopg2)
-       ("python-fastalite" ,python2-fastalite)
-       ("python-pyyaml" ,python2-pyyaml)
-       ("python-six" ,python2-six)
-       ("python-jinja2" ,python2-jinja2)
-       ("python-dendropy" ,python2-dendropy)))
+     `(("python-sqlalchemy" ,python-sqlalchemy)
+       ("python-decorator" ,python-decorator)
+       ("python-biopython" ,python-biopython)
+       ("python-pandas" ,python-pandas)
+       ("python-psycopg2" ,python-psycopg2)
+       ("python-fastalite" ,python-fastalite)
+       ("python-pyyaml" ,python-pyyaml)
+       ("python-six" ,python-six)
+       ("python-jinja2" ,python-jinja2)
+       ("python-dendropy" ,python-dendropy)))
     (home-page "https://github.com/fhcrc/taxtastic")
     (synopsis "Tools for taxonomic naming and annotation")
     (description
@@ -9091,6 +9116,8 @@ number detection tools.")
        ("r-rtracklayer" ,r-rtracklayer)
        ("r-s4vectors" ,r-s4vectors)
        ("r-zlibbioc" ,r-zlibbioc)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr))) ; for vignettes
     (inputs
      `(("zlib" ,zlib)))
     (home-page "https://github.com/al2na/methylKit")
@@ -9360,6 +9387,8 @@ analysis.")
        ("r-ggplot2" ,r-ggplot2)
        ("r-lattice" ,r-lattice)
        ("r-limma" ,r-limma)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr))) ; for vignettes
     (home-page "https://bioconductor.org/packages/release/bioc/html/vsn.html")
     (synopsis "Variance stabilization and calibration for microarray data")
     (description
@@ -13238,18 +13267,14 @@ in RNA-seq data.")
 (define-public python-scanpy
   (package
     (name "python-scanpy")
-    (version "1.4")
-    ;; Fetch from git because the pypi tarball does not include tests.
+    (version "1.4.5.1")
     (source
      (origin
-       (method git-fetch)
-       (uri (git-reference
-             (url "https://github.com/theislab/scanpy.git")
-             (commit version)))
-       (file-name (git-file-name name version))
+       (method url-fetch)
+       (uri (pypi-uri "scanpy" version))
        (sha256
         (base32
-         "0zn6x6c0cnm1a20i6isigwb51g3pr9zpjk8r1minjqnxi5yc9pm4"))))
+         "14kh1ji70xxhmri5q8sgcibsidhr6f221wxrcw8a5xvibj5da17j"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
@@ -13276,18 +13301,23 @@ in RNA-seq data.")
        ("python-igraph" ,python-igraph)
        ("python-joblib" ,python-joblib)
        ("python-louvain" ,python-louvain)
+       ("python-legacy-api-wrap" ,python-legacy-api-wrap)
        ("python-matplotlib" ,python-matplotlib)
        ("python-natsort" ,python-natsort)
        ("python-networkx" ,python-networkx)
        ("python-numba" ,python-numba)
+       ("python-packaging" ,python-packaging)
        ("python-pandas" ,python-pandas)
+       ("python-patsy" ,python-patsy)
        ("python-scikit-learn" ,python-scikit-learn)
        ("python-scipy" ,python-scipy)
        ("python-seaborn" ,python-seaborn)
        ("python-statsmodels" ,python-statsmodels)
-       ("python-tables" ,python-tables)))
+       ("python-tables" ,python-tables)
+       ("python-umap-learn" ,python-umap-learn)))
     (native-inputs
-     `(("python-pytest" ,python-pytest)))
+     `(("python-pytest" ,python-pytest)
+       ("python-setuptools-scm" ,python-setuptools-scm)))
     (home-page "https://github.com/theislab/scanpy")
     (synopsis "Single-Cell Analysis in Python.")
     (description "Scanpy is a scalable toolkit for analyzing single-cell gene
@@ -13953,7 +13983,7 @@ datasets.")
 (define-public ngless
   (package
     (name "ngless")
-    (version "1.0.1")
+    (version "1.1.0")
     (source
      (origin
        (method git-fetch)
@@ -13963,7 +13993,7 @@ datasets.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "06ygv8q2zjqsnrid1302yrlhhvb8ik48nq6n0higk3i1mdc8r0dg"))))
+         "1wim8wpqyff080dfcazynrmjwqas38m24m0v350w245mmhrapdma"))))
     (build-system haskell-build-system)
     (arguments
      `(#:haddock? #f ; The haddock phase fails with: NGLess/CmdArgs.hs:20:1:
@@ -14423,6 +14453,8 @@ repeated areas between contigs.")
         (base32
          "0fgygyzqgrq32dv6a00biq1p1cwi6kbl5iqblxq1kklj6b2mzmhs"))))
     (build-system python-build-system)
+    (native-inputs
+     `(("python-joblib" ,python-joblib)))
     (propagated-inputs
      `(("python-click" ,python-click)
        ("python-cython" ,python-cython)
diff --git a/gnu/packages/ccache.scm b/gnu/packages/ccache.scm
index b3f0cbbd95..529742403e 100644
--- a/gnu/packages/ccache.scm
+++ b/gnu/packages/ccache.scm
@@ -30,30 +30,29 @@
 (define-public ccache
   (package
     (name "ccache")
-    (version "3.6")
+    (version "3.7.7")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "https://www.samba.org/ftp/ccache/ccache-"
-                           version ".tar.xz"))
+       (uri (string-append "https://github.com/ccache/ccache/releases/download/v"
+                           version "/ccache-" version ".tar.xz"))
        (sha256
-        (base32 "07wv75xdcxpdkfsz9h5ffrm8pjbvr1dh6wnb02nyzz18cdbjkcd6"))))
+        (base32 "1kcqii3hr1008gj6jgfsjibwh2ryhsplc9z99m18xwa2zvbddhdp"))))
     (build-system gnu-build-system)
     (native-inputs `(("perl" ,perl)     ; for test/run
                      ("which" ,(@ (gnu packages base) which))))
     (inputs `(("zlib" ,zlib)))
     (arguments
      '(#:phases (modify-phases %standard-phases
-                 (add-before 'check 'setup-tests
-                   (lambda _
-                     (substitute* '("unittest/test_hashutil.c" "test/suites/base.bash")
-                       (("#!/bin/sh") (string-append "#!" (which "sh"))))
-                     #t)))))
-    (home-page "https://ccache.samba.org/")
+                  (add-before 'check 'setup-tests
+                    (lambda _
+                      (substitute* '("unittest/test_hashutil.c" "test/suites/base.bash")
+                        (("#!/bin/sh") (string-append "#!" (which "sh"))))
+                      #t)))))
+    (home-page "https://ccache.dev/")
     (synopsis "Compiler cache")
     (description
      "Ccache is a compiler cache.  It speeds up recompilation by caching
 previous compilations and detecting when the same compilation is being done
-again.  Supported languages are C, C++, Objective-C, Objective-C++, and
-Fortran 77.")
+again.  Supported languages are C, C++, Objective-C and Objective-C++.")
     (license gpl3+)))
diff --git a/gnu/packages/chromium.scm b/gnu/packages/chromium.scm
index 0b3d19a428..bb0993a4b4 100644
--- a/gnu/packages/chromium.scm
+++ b/gnu/packages/chromium.scm
@@ -839,7 +839,9 @@ from forcing GEXP-PROMISE."
 
     ;; Building Chromium takes ... a very long time.  On a single core, a busy
     ;; mid-end x86 system may need more than 24 hours to complete the build.
-    (properties '((timeout . 144000)))  ;40 hours
+    (properties '((timeout . 144000)    ;40 hours
+                  ;; The linking step may take more than an hour on some hardware.
+                  (max-silent-time . 7200)))
 
     (home-page "https://github.com/Eloston/ungoogled-chromium")
     (description
diff --git a/gnu/packages/compression.scm b/gnu/packages/compression.scm
index 549d53dd7d..2e1fe04dde 100644
--- a/gnu/packages/compression.scm
+++ b/gnu/packages/compression.scm
@@ -890,49 +890,6 @@ possible and can compress in parallel.  This is especially useful for large
 tarballs.")
     (license license:bsd-2)))
 
-(define-public brotli
-  (let ((commit "e992cce7a174d6e2b3486616499d26bb0bad6448")
-        (revision "1"))
-    (package
-      (name "brotli")
-      (version (string-append "0.1-" revision "."
-                              (string-take commit 7)))
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/bagder/libbrotli.git")
-                      (commit commit)
-                      (recursive? #t)))
-                (file-name (string-append name "-" version ".tar.xz"))
-                (sha256
-                 (base32
-                  "1qxxsasvwbbbh6dl3138y9h3fg0q2v7xdk5jjc690bdg7g1wrj6n"))
-                (modules '((guix build utils)))
-                (snippet '(begin
-                            ;; This is a recursive submodule that is
-                            ;; unnecessary for this package, so delete it.
-                            (delete-file-recursively "brotli/terryfy")
-                            #t))))
-      (build-system gnu-build-system)
-      (native-inputs
-       `(("autoconf" ,autoconf)
-         ("automake" ,automake)
-         ("libtool" ,libtool)))
-      (arguments
-       `(#:phases (modify-phases %standard-phases
-                    (add-after 'unpack 'autogen
-                      (lambda _
-                        (mkdir "m4")
-                        (invoke "autoreconf" "-vfi"))))))
-      (home-page "https://github.com/bagder/libbrotli/")
-      (synopsis "Implementation of the Brotli compression algorithm")
-      (description
-       "Brotli is a general-purpose lossless compression algorithm.  It is
-similar in speed to deflate but offers denser compression.  This package
-provides encoder and a decoder libraries: libbrotlienc and libbrotlidec,
-respectively, based on the reference implementation from Google.")
-      (license license:expat))))
-
 (define-public bsdiff
   (package
     (name "bsdiff")
@@ -1890,6 +1847,10 @@ with @code{deflate} but offers more dense compression.
 The specification of the Brotli Compressed Data Format is defined in RFC 7932.")
     (license license:expat)))
 
+(define-public brotli
+  ;; We used to provide an older version under the name "brotli".
+  (deprecated-package "brotli" google-brotli))
+
 (define-public ucl
   (package
     (name "ucl")
diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm
index dba9ec75f6..0c5692b125 100644
--- a/gnu/packages/cpp.scm
+++ b/gnu/packages/cpp.scm
@@ -462,7 +462,7 @@ point and then, after each tween step, plugging back the result.")
                                ;;
                                ;; ld: CMakeFiles/absl_periodic_sampler_test.dir/internal/periodic_sampler_test.cc.o:
                                ;;   undefined reference to symbol '_ZN7testing4Mock16UnregisterLockedEPNS_8internal25UntypedFunctionMockerBaseE'
-                               ;; ld: /gnu/store/bxapb1f1l8frjpbjckk3zdxhmcig3xzk-googletest-1.10.0/lib/libgmock.so:
+                               ;; ld: /gnu/store/...-googletest-1.10.0/lib/libgmock.so:
                                ;;   error adding symbols: DSO missing from command line
                                ;; collect2: error: ld returned 1 exit status
                                "-DCMAKE_EXE_LINKER_FLAGS=-lgtest -lpthread -lgmock")
diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index 6c7c95dc68..05aa746f29 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -2660,14 +2660,14 @@ available in a vignette.")
 (define-public r-lava
   (package
     (name "r-lava")
-    (version "1.6.6")
+    (version "1.6.7")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "lava" version))
        (sha256
         (base32
-         "0nfab5fgnmxh8cplg8rd8cp34fny5j0k5wn4baj51r6ck7fq9g3s"))))
+         "0ffzxbb8pvfh1m6j61az4ga37snyhylq2941fyc76w7w9i2sixv3"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-numderiv" ,r-numderiv)
@@ -3165,19 +3165,21 @@ for certain use cases.")
 (define-public r-ggrepel
   (package
     (name "r-ggrepel")
-    (version "0.8.1")
+    (version "0.8.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "ggrepel" version))
        (sha256
         (base32
-         "10vjrcmx8yknfbx93d9a4y3z8gafri0fhimw6hcq733dmdvkml6m"))))
+         "1qaifn3dazdqbqlii210xhw7yf142iw7g9p2axmmxbz90p0by08d"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-ggplot2" ,r-ggplot2)
        ("r-rcpp" ,r-rcpp)
        ("r-scales" ,r-scales)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr))) ; for vignettes
     (home-page "http://github.com/slowkow/ggrepel")
     (synopsis "Repulsive text and label geometries for ggplot2")
     (description
@@ -3634,14 +3636,14 @@ modeling for empirical income distributions.")
 (define-public r-vcd
   (package
     (name "r-vcd")
-    (version "1.4-5")
+    (version "1.4-6")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "vcd" version))
        (sha256
         (base32
-         "0pqf1sdp0d60aqc7721hy2zfcp57902by0i28jqbn683dd50c21a"))))
+         "0rjz49py5l6wnaimw6k8rcyzlvs8cyz5g2xwqj2qis92ly0l103z"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-colorspace" ,r-colorspace)
@@ -4422,14 +4424,14 @@ Fisher's method), and Sidak correction.")
 (define-public r-quantmod
   (package
     (name "r-quantmod")
-    (version "0.4-15")
+    (version "0.4-16")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "quantmod" version))
        (sha256
         (base32
-         "0lyzaf5ypk93v6zj9gdghy05cc7cxgn9yasv1apx5r6qsjcfgwky"))))
+         "12l5br8abr1yagxqjnjvqzp79sqsv5vx56cxs37gk73r474f4vc2"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-curl" ,r-curl)
@@ -4812,6 +4814,8 @@ functions to enforce symmetric scales or add tags to facetted plots.")
        ("r-seriation" ,r-seriation)
        ("r-viridis" ,r-viridis)
        ("r-webshot" ,r-webshot)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr)))
     (home-page "https://cran.r-project.org/package=heatmaply")
     (synopsis "Interactive cluster heat maps using plotly")
     (description
@@ -6375,15 +6379,17 @@ other add-on packages.")
 (define-public r-insight
   (package
     (name "r-insight")
-    (version "0.8.1")
+    (version "0.8.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "insight" version))
        (sha256
         (base32
-         "1y889bydmji3pcq2bdf6xl6ikmd45wbwl53ssvsk05b5ahkyxi76"))))
+         "0fjf7dwpv1a7qfbzixppg348z1ksq19kdjm08vcb2am7w0k3plcj"))))
     (build-system r-build-system)
+    (native-inputs
+     `(("r-knitr" ,r-knitr)))
     (home-page "https://easystats.github.io/insight/")
     (synopsis "Easy access to model information for various model objects")
     (description
@@ -6504,14 +6510,14 @@ functions.")
 (define-public r-flextable
   (package
     (name "r-flextable")
-    (version "0.5.8")
+    (version "0.5.9")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "flextable" version))
        (sha256
         (base32
-         "1x24rz1r5xin122czg85d7nrkwpaabb60p50m3yrd3dh81vfp0hk"))))
+         "1rkz0nhwjy1l8sb0kmna5v492n2ydnk7gydswnmf88r8vfyjczhw"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-base64enc" ,r-base64enc)
@@ -7277,6 +7283,8 @@ Processing of very large files is supported.")
       ("r-mosaicdata" ,r-mosaicdata)
       ("r-readr" ,r-readr)
       ("r-tidyr" ,r-tidyr)))
+   (native-inputs
+    `(("r-knitr" ,r-knitr)))
    (home-page "https://github.com/ProjectMOSAIC/mosaic/")
    (synopsis "Mathematics, statistics, and computation teaching utilities")
    (description
@@ -7590,13 +7598,13 @@ for the reconstruction of gene regulatory networks.")
 (define-public r-pscl
   (package
     (name "r-pscl")
-    (version "1.5.2")
+    (version "1.5.5")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "pscl" version))
        (sha256
-        (base32 "1phf3awsfr4ncqfqzin5m1pz0g7y1zhbcm2sz7358ssw914fd7rc"))))
+        (base32 "0vzf5wazs92bhqhqd66v3vwmbfmnh67gb2466g1xxawim649nk05"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-mass" ,r-mass)))
@@ -8663,14 +8671,14 @@ back to file after modifications.")
 (define-public r-fs
   (package
     (name "r-fs")
-    (version "1.3.1")
+    (version "1.3.2")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "fs" version))
        (sha256
         (base32
-         "1g26rgx13dzigp2vrlld6h28q33lwbax97zvwdrq2pc3iz54v4yn"))))
+         "1w30bflx4d7a6f3dn96bf7s7v6aqpvz2yzzxal6qz9jyhb16bxaz"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-rcpp" ,r-rcpp)))
@@ -9183,20 +9191,18 @@ address a bug.")
 (define-public r-rcppannoy
   (package
     (name "r-rcppannoy")
-    (version "0.0.15")
+    (version "0.0.16")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "RcppAnnoy" version))
        (sha256
         (base32
-         "1rlw6npwwcp066midvkhnzf0xmmfkkdf6f581j3j1s2naqss3fvl"))))
+         "0bfa35lp6vc4b0h3ymvdx50br233q8vvyjml34ngi81rj0imz3fr"))))
     (properties `((upstream-name . "RcppAnnoy")))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-rcpp" ,r-rcpp)))
-    (native-inputs
-     `(("r-knitr" ,r-knitr))) ; for vignettes
     (home-page "https://cran.r-project.org/web/packages/RcppAnnoy/")
     (synopsis "Rcpp bindings for Annoy, a library for Approximate Nearest Neighbors")
     (description
@@ -10545,14 +10551,14 @@ other manipulations of bitmapped images.")
 (define-public r-rapidjsonr
   (package
     (name "r-rapidjsonr")
-    (version "1.1")
+    (version "1.2.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "rapidjsonr" version))
        (sha256
         (base32
-         "0h4phjjhykbb45rg5b1xn48vqxdcvcngbm0416ds8in7j469wbwd"))))
+         "07zdirhbzmvq3cp4xn8ngk1lgxbbabzays315zxbs3sxrz6lzjb2"))))
     (build-system r-build-system)
     (home-page "https://cran.r-project.org/web/packages/rapidjsonr")
     (synopsis "JSON parser")
@@ -13599,13 +13605,13 @@ SELECT or UPDATE queries to an end-point.")
 (define-public r-bookdown
   (package
     (name "r-bookdown")
-    (version "0.17")
+    (version "0.18")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "bookdown" version))
               (sha256
                (base32
-                "10b4gnd6z3w13pysqqan43blxcbk7bgbzc7wr83b23ag1lh2n40j"))))
+                "1my6g16phx21v5cvfqcnjibh3zcv02xkix347aafd6a7r3hnxpq5"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-htmltools" ,r-htmltools)
@@ -15328,20 +15334,22 @@ easily.")
 (define-public r-umap
   (package
     (name "r-umap")
-    (version "0.2.4.1")
+    (version "0.2.5.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "umap" version))
        (sha256
         (base32
-         "1pnh3hv8ihiz2nszqp797lkrdhhna2a6mzpizbsk0s9m8cj4wxva"))))
+         "0qp8zbh6fn8kn6q2h2lyjgmq3pr6gqwsd8ymqx25px13zjhxch9d"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-openssl" ,r-openssl)
        ("r-rcpp" ,r-rcpp)
        ("r-reticulate" ,r-reticulate)
        ("r-rspectra" ,r-rspectra)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr)))
     (home-page "https://github.com/tkonopka/umap")
     (synopsis "Uniform manifold approximation and projection")
     (description
@@ -15682,13 +15690,13 @@ function and interfaces to external frameworks.")
 (define-public r-covr
   (package
     (name "r-covr")
-    (version "3.4.0")
+    (version "3.5.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "covr" version))
        (sha256
-        (base32 "0p44kr6yz5sqza5zvq6divqglzkpv0if9pjpjmzhmdaaddjrqzg5"))))
+        (base32 "1pvr95h7jg9hqq1qq1cccy323pkxldrwafl08151cc410499k4fb"))))
     (properties `((upstream-name . "covr")))
     (build-system r-build-system)
     (propagated-inputs
@@ -15699,6 +15707,8 @@ function and interfaces to external frameworks.")
        ("r-rex" ,r-rex)
        ("r-withr" ,r-withr)
        ("r-yaml" ,r-yaml)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr))) ; for vignettes
     (home-page "https://github.com/r-lib/covr")
     (synopsis "Test coverage for R packages")
     (description
@@ -15941,19 +15951,21 @@ atmospheric physics.")
 (define-public r-lifecycle
   (package
     (name "r-lifecycle")
-    (version "0.1.0")
+    (version "0.2.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "lifecycle" version))
        (sha256
         (base32
-         "11rk7hkw63rfrf4aqmb4xrb88kg95xh8hajpjvjfwjym2v02h74n"))))
+         "0912865c6675fsblrfdk6s568krsj1x8qbk1kipy7m05xs6nwx19"))))
     (properties `((upstream-name . "lifecycle")))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-glue" ,r-glue)
        ("r-rlang" ,r-rlang)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr))) ; for vignettes
     (home-page "https://github.com/r-lib/lifecycle")
     (synopsis "Manage the life cycle of your package functions")
     (description
@@ -16016,13 +16028,13 @@ programming problems.")
 (define-public r-desolve
   (package
     (name "r-desolve")
-    (version "1.27.1")
+    (version "1.28")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "deSolve" version))
        (sha256
-        (base32 "05sax045qrk550gsn2i7krb9rbg51rx88x4v190acsigqknxffrv"))))
+        (base32 "0jasvdzig0pzhzspmy20089az19r91xjfb9q6h8gj7c4mr6fymac"))))
     (properties `((upstream-name . "deSolve")))
     (build-system r-build-system)
     (native-inputs
@@ -19978,7 +19990,7 @@ on a continuous-time birth-death process.")
     (home-page "http://christophergandrud.github.io/d3Network/")
     (synopsis "Create D3 JavaScript network, tree, dendrogram, and Sankey graphs")
     (description
-     "This packages is intended to make it easy to create D3 JavaScript
+     "This package is intended to make it easy to create D3 JavaScript
 network, tree, dendrogram, and Sankey graphs from R using data frames.")
     (license license:gpl3+)))
 
@@ -20691,3 +20703,27 @@ package is adopted for computing with arbitrarily large numbers.  Every
 function has a hyperlink to its corresponding item in the @dfn{On-Line
 Encyclopedia of Integer Sequences} (OEIS) in the function help page.")
     (license license:gpl3+)))
+
+(define-public r-isoband
+  (package
+    (name "r-isoband")
+    (version "0.2.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "isoband" version))
+       (sha256
+        (base32
+         "1r023s73qypnvpx18znr9ymylr022m90v65mz2jasn0a1kjrfcbq"))))
+    (properties `((upstream-name . "isoband")))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-rcpp" ,r-rcpp)
+       ("r-testthat" ,r-testthat)))
+    (home-page "https://github.com/wilkelab/isoband")
+    (synopsis "Generate isolines and isobands from regularly spaced elevation grids")
+    (description
+     "This package provides a fast C++ implementation to generate contour
+lines (isolines) and contour polygons (isobands) from regularly spaced grids
+containing elevation data.")
+    (license license:expat)))
diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index a5272156ab..87493cff05 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -10004,8 +10004,8 @@ checking.")
      `(#:skip-build? #t     ; Only builds on Windows.
        #:cargo-inputs (("rust-winapi" ,rust-winapi-0.3))))
     (home-page "https://github.com/blackbeam/named_pipe")
-    (synopsis "Wrapper for overlapped (asyncronous) IO of Windows's named pipes")
-    (description "This package provides a wrapper for overlapped (asyncronous)
+    (synopsis "Wrapper for overlapped (asynchronous) IO of Windows's named pipes")
+    (description "This package provides a wrapper for overlapped (asynchronous)
 IO of Windows's named pipes.")
     (license (list license:expat license:asl2.0))))
 
diff --git a/gnu/packages/cups.scm b/gnu/packages/cups.scm
index 7d53bd4160..0d675c2ef7 100644
--- a/gnu/packages/cups.scm
+++ b/gnu/packages/cups.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2016 Danny Milosavljevic <dannym@scratchpost.org>
 ;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2017 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2017, 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -420,14 +420,14 @@ should only be used as part of the Guix cups-pk-helper service.")
 (define-public hplip
   (package
     (name "hplip")
-    (version "3.19.12")
+    (version "3.20.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/hplip/hplip/" version
                                   "/hplip-" version ".tar.gz"))
               (sha256
                (base32
-                "0mdj0sqgfxjqa550adiw1gn4z9n6wcvn55slivgf0ndn5x89iwxp"))
+                "1hkiyj29vzmz14cy68g94i617ymxinzvjvcsfdd78kcbd1s9vi4h"))
               (modules '((guix build utils)))
               (patches (search-patches "hplip-remove-imageprocessor.patch"))
               (snippet
diff --git a/gnu/packages/databases.scm b/gnu/packages/databases.scm
index 98f80db89f..59f9c2b173 100644
--- a/gnu/packages/databases.scm
+++ b/gnu/packages/databases.scm
@@ -3373,3 +3373,38 @@ The drivers officially supported by @code{libdbi} are:
 @end itemize")
     (home-page "http://libdbi-drivers.sourceforge.net/")
     (license license:lgpl2.1+)))
+
+(define-public soci
+  (package
+    (name "soci")
+    (version "4.0.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/SOCI/soci/")
+                    (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "06faswdxd2frqr9xnx6bxc7zwarlzsbdi3bqpz7kwdxsjvq41rnb"))))
+    (build-system cmake-build-system)
+    (inputs
+     `(("postgresql" ,postgresql)
+       ("sqlite" ,sqlite)
+       ("odbc" ,unixodbc)
+       ("boost" ,boost)
+       ("mysql" ,mysql)))
+    (arguments
+     `(#:tests? #f ; Tests may require running database management systems.
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-lib-path
+           (lambda _
+             (substitute* "CMakeLists.txt"
+               (("set\\(SOCI_LIBDIR \"lib64\"\\)") "")))))))
+    (synopsis "C++ Database Access Library")
+    (description
+     "SOCI is an abstraction layer for several database backends, including
+PostreSQL, SQLite, ODBC and MySQL.")
+    (home-page "http://soci.sourceforge.net/")
+    (license license:boost1.0)))
diff --git a/gnu/packages/dictionaries.scm b/gnu/packages/dictionaries.scm
index 98b710ab6d..d8e30a5524 100644
--- a/gnu/packages/dictionaries.scm
+++ b/gnu/packages/dictionaries.scm
@@ -199,7 +199,7 @@ work, such as sentence length and other readability measures.")
     (synopsis "Dictionary lookup program with a German-English dictionary")
     (description "Ding is a dictionary lookup program for the X window system.
 It comes with a German-English dictionary with approximately 270,000 entries.")
-    (home-page  "http://www-user.tu-chemnitz.de/~fri/ding/")
+    (home-page  "https://www-user.tu-chemnitz.de/~fri/ding/")
     (license license:gpl2+)))
 
 (define-public grammalecte
diff --git a/gnu/packages/dns.scm b/gnu/packages/dns.scm
index 987275edf2..100a71d3bd 100644
--- a/gnu/packages/dns.scm
+++ b/gnu/packages/dns.scm
@@ -386,14 +386,14 @@ to result in system-wide compromise.")
 (define-public unbound
   (package
     (name "unbound")
-    (version "1.9.6")
+    (version "1.10.0")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://www.unbound.net/downloads/unbound-"
                            version ".tar.gz"))
        (sha256
-        (base32 "1w5aylh2gfvfvqkgrq46aw427x9c0a3hwm0f985s55wim5pgr60x"))))
+        (base32 "0mg9divpysr42sp0m693a70693dp8025v6c9dv1yabr4g1jlhbqm"))))
     (build-system gnu-build-system)
     (outputs '("out" "python"))
     (native-inputs
@@ -590,14 +590,14 @@ Extensions} (DNSSEC).")
 (define-public knot
   (package
     (name "knot")
-    (version "2.9.2")
+    (version "2.9.3")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://secure.nic.cz/files/knot-dns/"
                            "knot-" version ".tar.xz"))
        (sha256
-        (base32 "1vmndmbzwwrqczhygkhpdn5xxljcnaa3d0z5yw6vb2bmm8rxz319"))
+        (base32 "0zm0642hkb16sqkqpa84f89f3s0bw44m837r1nia8m89swvz3bgj"))
        (modules '((guix build utils)))
        (snippet
         '(begin
diff --git a/gnu/packages/education.scm b/gnu/packages/education.scm
index b2501f2c7b..7c84d832c0 100644
--- a/gnu/packages/education.scm
+++ b/gnu/packages/education.scm
@@ -738,7 +738,8 @@ adjust the level of difficulty.")
        (uri (string-append "https://apps.ankiweb.net/downloads/archive/anki-"
                            version "-source.tgz"))
        (sha256
-        (base32 "1gfr51rnllkyzli73p4r51h5ypzfa3m7lic3m3rzpywmqwrxs07k"))))
+        (base32 "1gfr51rnllkyzli73p4r51h5ypzfa3m7lic3m3rzpywmqwrxs07k"))
+       (patches (search-patches "anki-mpv-args.patch"))))
     (build-system gnu-build-system)
     (arguments
      `(#:make-flags (list (string-append "PREFIX=" %output))
@@ -779,6 +780,9 @@ adjust the level of difficulty.")
                            (wrap-program program
                              `("QTWEBENGINEPROCESS_PATH" =
                                (,qtwebengineprocess))
+                             `("PATH" prefix (,(string-append
+                                                (assoc-ref inputs "mpv")
+                                                "/bin")))
                              `("PYTHONPATH" = ,site-packages)))
                          (find-files bin ".")))
              #t)))))
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index 6bdfd7a640..984613e54e 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -61,6 +61,7 @@
 ;;; Copyright © 2020 Robert Smith <robertsmith@posteo.net>
 ;;; Copyright © 2020 Evan Straw <evan.straw99@gmail.com>
 ;;; Copyright © 2020 Masaya Tojo <masaya@tojo.tokyo>
+;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -971,13 +972,13 @@ in certain cases.  It also enables recursion for anonymous functions.")
 (define-public emacs-xr
   (package
     (name "emacs-xr")
-    (version "1.16")
+    (version "1.17")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://elpa.gnu.org/packages/xr-" version ".tar"))
        (sha256
-        (base32 "1s6pkbr7gkan0r9gfmix75m587d8cg6l11722v70zzgf2z9w2xg9"))))
+        (base32 "0kicy15hww85kf7vii1j4yypa9z44d5vbpm65vwb6fzz0lv639zm"))))
     (build-system emacs-build-system)
     (home-page "https://elpa.gnu.org/packages/xr.html")
     (synopsis "Convert string regexp to rx notation")
@@ -1075,14 +1076,14 @@ optional minor mode which can apply this command automatically on save.")
 (define-public emacs-relint
   (package
     (name "emacs-relint")
-    (version "1.14")
+    (version "1.15")
     (source
      (origin
        (method url-fetch)
        (uri (string-append
              "https://elpa.gnu.org/packages/relint-" version ".tar"))
        (sha256
-        (base32 "0hjzhxcygb2r2s3g2pk3z9x3appy1y8gkw8gpg9cpkl6lpwcsh2f"))))
+        (base32 "0sxmdsacj8my942k8j76m2y68nzab7190acv7cwgflc5n4f07yxa"))))
     (build-system emacs-build-system)
     (propagated-inputs `(("emacs-xr" ,emacs-xr)))
     (home-page "https://github.com/mattiase/relint")
@@ -4685,7 +4686,7 @@ local directories.")
   (package
     (name "emacs-ffap-rfc-space")
     (version "12")
-    (home-page "http://user42.tuxfamily.org/ffap-rfc-space/index.html")
+    (home-page "https://user42.tuxfamily.org/ffap-rfc-space/index.html")
     (source (origin
               (method url-fetch)
               (uri "http://download.tuxfamily.org/user42/ffap-rfc-space.el")
@@ -7390,8 +7391,8 @@ CIDER).")
 ;; There hasn't been a tag or release since 2016, so we take the latest
 ;; commit.
 (define-public emacs-sly
-  (let ((commit "0a3b81770e46b93b9ffd8b9ac5254e0b88d1b13d")
-        (revision "3"))
+  (let ((commit "86a63df73360be51529806c7ed9b775b3f02284d")
+        (revision "4"))
     (package
       (name "emacs-sly")
       (version (git-version "1.0.0" revision commit))
@@ -7404,7 +7405,7 @@ CIDER).")
          (file-name (git-file-name name version))
          (sha256
           (base32
-           "1q5ga4mxa0ffa4zb2y0zfwmgzjggx4fn1y4bl2x7ac6ynvb32zkj"))))
+           "0sx6fdckcfcld41db0695svvlvllnfaazwx513686gnykwfd209n"))))
       (build-system emacs-build-system)
       (native-inputs
        `(("texinfo" ,texinfo)))
@@ -21734,6 +21735,32 @@ Separated Value) files.  It follows the format as defined in RFC 4180 \"Common
 Format and MIME Type for CSV Files\" (@url{http://tools.ietf.org/html/rfc4180}).")
     (license license:gpl3+)))
 
+(define-public emacs-org-journal
+  (package
+    (name "emacs-org-journal")
+    (version "2.0.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/bastibe/org-journal.git")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "18dqd0jy2x530lk0h4fcn9cld9qh4w7b3vxa60fpiia628vsv1dg"))))
+    (build-system emacs-build-system)
+    (home-page "https://github.com/bastibe/org-journal")
+    (synopsis "Simple Org mode journaling mode")
+    (description
+     "Org Journal is a set of functions to maintain a simple personal diary /
+journal using in Emacs, adapted from
+@url{https://www.emacswiki.org/emacs/PersonalDiary}.  Convenient bindings
+allow the creation of journal records in the current daily, weekly, monthly or
+yearly file and search within all records or specified time intervals.  All
+records can be browsed and searched from the Emacs Calendar for convenience.
+All entries in a specified TODO state will be carried over to the next day.")
+    (license license:bsd-3)))
+
 (define-public emacs-ddskk
   ;; XXX: Upstream adds code names to their release tags, so version and code
   ;; name below need to be updated together.
diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index b446958833..f3469b1815 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -178,7 +178,7 @@
     (native-inputs
      `(("pkg-config" ,pkg-config)
        ("which" ,which)))
-    (home-page "http://librecad.org/")
+    (home-page "https://librecad.org/")
     (synopsis "Computer-aided design (CAD) application")
     (description
      "LibreCAD is a 2D Computer-aided design (CAD) application for creating
diff --git a/gnu/packages/fonts.scm b/gnu/packages/fonts.scm
index 186e1eecff..c302196104 100644
--- a/gnu/packages/fonts.scm
+++ b/gnu/packages/fonts.scm
@@ -11,7 +11,7 @@
 ;;; Copyright © 2016 Jookia <166291@gmail.com>
 ;;; Copyright © 2016 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016 Dmitry Nikolaev <cameltheman@gmail.com>
-;;; Copyright © 2016, 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2017, 2018, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2016 Toni Reina <areina@riseup.net>
 ;;; Copyright © 2017, 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
@@ -1234,22 +1234,22 @@ have been optimized for beautiful display on all common platforms and display
 resolutions.")
     (license license:asl2.0)))
 
-(define-public font-open-dyslexic
+(define-public font-opendyslexic
   (package
-    (name "font-open-dyslexic")
-    (version "20160623")
+    (name "font-opendyslexic")
+    (version "0.91.12")
     (source
-     (origin
-       (method git-fetch)
-       (uri (git-reference
-              (url "https://github.com/antijingoist/open-dyslexic.git")
-              (commit (string-append version "-Stable"))))
-       (file-name (git-file-name name version))
-       (sha256
-        (base32
-         "0nr7s92nk1kbr459154idnib977ixc70z6g9mbra3lp73nyrmyvz"))))
+      (origin
+        (method url-fetch/zipbomb)
+        (uri (string-append "https://github.com/antijingoist/opendyslexic/"
+                            "releases/download/v" version
+                            "/opendyslexic-0.910.12-rc2-2019.10.17.zip"))
+        (sha256
+         (base32
+          "11ml7v4iyf3hr0fbnkwz8afb8vi58wbcfnmn4gyvrwh9jk5pybdr"))))
     (build-system font-build-system)
-    (home-page "https://opendyslexic.org")
+    (native-inputs `(("unzip" ,unzip)))
+    (home-page "https://opendyslexic.org/")
     (synopsis "Font for dyslexics and high readability")
     (description "OpenDyslexic is a font designed to help readability for some
 of the symptoms of dyslexia.  Letters have heavy weighted bottoms to provide
@@ -1258,12 +1258,10 @@ similar letters.  Consistently weighted bottoms can also help reinforce the
 line of text.  The unique shapes of each letter can help prevent flipping and
 swapping.  The italic style for OpenDyslexic has been crafted to be used for
 emphasis while still being readable.")
-    (license
-     (license:fsdg-compatible
-      "https://www.gnome.org/fonts/#Final_Bitstream_Vera_Fonts"
-      "The Font Software may be sold as part of a larger software package but
-no copy of one or more of the Font Software typefaces may be sold by
-itself."))))
+    (license license:silofl1.1)))
+
+(define-public font-open-dyslexic
+  (deprecated-package "font-open-dyslexic" font-opendyslexic))
 
 (define-public font-dosis
   (package
diff --git a/gnu/packages/fontutils.scm b/gnu/packages/fontutils.scm
index d802feb1da..3daa5187b9 100644
--- a/gnu/packages/fontutils.scm
+++ b/gnu/packages/fontutils.scm
@@ -257,44 +257,35 @@ work with most software requiring Type 1 fonts.")
     (license license:bsd-3)))
 
 (define-public woff2
-  (let ((commit "4e698b8c6c5e070d53c340db9ddf160e21070ede")
-        (revision "1"))
-    (package
-      (name "woff2")
-      (version (string-append "20160306-" revision "."
-                              (string-take commit 7)))
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/google/woff2.git")
-                      (commit commit)))
-                (file-name (string-append name "-" version ".tar.xz"))
-                (sha256
-                 (base32
-                  "0wka0yhf0cjmd4rv2jckxpyv6lb5ckj4nj0k1ajq5hrjy7f30lcp"))
-                (patches (list (search-patch "woff2-libbrotli.patch")))))
-      (build-system gnu-build-system)
-      (native-inputs
-       `(("pkg-config" ,pkg-config)))
-      (inputs
-       `(("brotli" ,brotli)))
-      (arguments
-       `(#:tests? #f                    ;no tests
-         #:phases (modify-phases %standard-phases
-                    (delete 'configure)
-                    (replace 'install
-                      (lambda* (#:key outputs #:allow-other-keys)
-                        (let* ((out (assoc-ref outputs "out"))
-                               (bin (string-append out "/bin")))
-                          (install-file "woff2_compress" bin)
-                          (install-file "woff2_decompress" bin)
-                          #t))))))
-      (synopsis "Compress TrueType fonts to WOFF2")
-      (description
-       "This package provides utilities for compressing/decompressing TrueType
+  (package
+    (name "woff2")
+    (version "1.0.2")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/google/woff2.git")
+                    (commit (string-append "v" version))))
+              (file-name (string-append name "-" version ".git"))
+              (sha256
+               (base32
+                "13l4g536h0pr84ww4wxs2za439s0xp1va55g6l478rfbb1spp44y"))))
+    (build-system cmake-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("google-brotli" ,google-brotli)))
+    (arguments
+     ;; package has no tests
+     `(#:tests? #f
+       ;; we can’t have both, shared libraries and binaries, so turn off the
+       ;; former
+       #:configure-flags (list "-DBUILD_SHARED_LIBS=OFF")))
+    (synopsis "Compress TrueType fonts to WOFF2")
+    (description
+     "This package provides utilities for compressing/decompressing TrueType
 fonts to/from the WOFF2 format.")
-      (license license:asl2.0)
-      (home-page "https://github.com/google/woff2"))))
+    (license license:asl2.0)
+    (home-page "https://github.com/google/woff2")))
 
 (define-public fontconfig
   (package
diff --git a/gnu/packages/geo.scm b/gnu/packages/geo.scm
index d458c7bc92..1346ebeb5f 100644
--- a/gnu/packages/geo.scm
+++ b/gnu/packages/geo.scm
@@ -328,7 +328,7 @@ fully fledged Spatial SQL capabilities.")
 (define-public proj
   (package
     (name "proj")
-    (version "6.2.0")
+    (version "6.3.1")
     (source
      (origin
        (method url-fetch)
@@ -336,7 +336,7 @@ fully fledged Spatial SQL capabilities.")
                            version ".tar.gz"))
        (sha256
         (base32
-         "0l1as8f4zfg74fms6h5p5psziw0lpznja1xnirzsscpnfbwc005k"))))
+         "1y46ij32j9b4x1kjnnlykcwk3kkjwkg44sfc1ziwm3a3g0ki3q3d"))))
     (build-system gnu-build-system)
     (inputs
      `(("sqlite" ,sqlite)))
@@ -554,6 +554,7 @@ development.")
      `(("freexl" ,freexl)
        ("geos" ,geos)
        ("libgaiagraphics" ,libgaiagraphics)
+       ("libjpeg-turbo" ,libjpeg-turbo)
        ("libspatialite" ,libspatialite)
        ("libxml2" ,libxml2)
        ("proj.4" ,proj.4)
@@ -571,7 +572,7 @@ development.")
 (define-public gdal
   (package
     (name "gdal")
-    (version "3.0.2")
+    (version "3.0.4")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -579,7 +580,7 @@ development.")
                      version ".tar.gz"))
               (sha256
                (base32
-                "0f80izh9wshrsw55kg9abpip74hk6frk3hgqrkqbyn3f6i8g2z3q"))
+                "10symyajj1b7j98f889lqxxbmhcyvlhq9gg0l42h69bv22wx45gw"))
               (modules '((guix build utils)))
               (snippet
                 `(begin
@@ -1459,3 +1460,58 @@ archive all the GPS recordings of your past trips.  It is the successor of the
 QLandkarte GT application.")
     (home-page "https://github.com/Maproom/qmapshack/wiki")
     (license license:gpl3+)))
+
+(define-public readosm
+  (package
+    (name "readosm")
+    (version "1.1.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://www.gaia-gis.it/gaia-sins/"
+                           "readosm-" version ".tar.gz"))
+       (sha256
+        (base32 "1v20pnda67imjd70fn0zw30aar525xicy3d3v49md5cvqklws265"))))
+    (build-system gnu-build-system)
+    (inputs
+     `(("expat" ,expat)
+       ("zlib" ,zlib)))
+    (synopsis "Data extractor for OpenStreetMap files")
+    (description
+     "ReadOSM is a library to extract valid data from within an OpenStreetMap
+input file (in @code{.osm} or @code{.osm.pbf} format).")
+    (home-page "https://www.gaia-gis.it/fossil/readosm/index")
+    (license (list license:gpl2+
+                   license:lgpl2.1+
+                   license:mpl1.1))))
+
+(define-public spatialite-tools
+  (package
+    (name "spatialite-tools")
+    (version "4.3.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://www.gaia-gis.it/gaia-sins/"
+                           "spatialite-tools-" version ".tar.gz"))
+       (sha256
+        (base32 "12fggjhi8cgwvw8f6nk76f83b8lqkc07abxyj5ap6f2gq2dqafgp"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("expat" ,expat)
+       ("freexl" ,freexl)
+       ("geos" ,geos)
+       ("libspatialite" ,libspatialite)
+       ("libxml2" ,libxml2)
+       ("proj.4" ,proj.4)
+       ("readosm" ,readosm)
+       ("sqlite" ,sqlite)
+       ("zlib" ,zlib)))
+    (synopsis "Collection of command line tools for SpatiaLite")
+    (description
+     "@code{spatialite-tools} is a collection of Command Line Interface (CLI)
+tools supporting SpatiaLite.")
+    (home-page "https://www.gaia-gis.it/fossil/spatialite-tools/index")
+    (license license:gpl3+)))
diff --git a/gnu/packages/gkrellm.scm b/gnu/packages/gkrellm.scm
index 4eb906e40d..153e27c7f0 100644
--- a/gnu/packages/gkrellm.scm
+++ b/gnu/packages/gkrellm.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
-;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -31,15 +31,14 @@
 (define-public gkrellm
   (package
     (name "gkrellm")
-    (version "2.3.10")
+    (version "2.3.11")
     (source
      (origin
       (method url-fetch)
       (uri (string-append "http://gkrellm.srcbox.net/releases/gkrellm-"
                           version ".tar.bz2"))
       (sha256
-       (base32
-        "0rnpzjr0ys0ypm078y63q4aplcgdr5nshjzhmz330n6dmnxci7lb"))))
+       (base32 "01lccz4fga40isv09j8rjgr0qy10rff9vj042n6gi6gdv4z69q0y"))))
     (build-system gnu-build-system)
     (inputs
      `(("gettext" ,gettext-minimal)
diff --git a/gnu/packages/gnome.scm b/gnu/packages/gnome.scm
index c802164188..336d10c923 100644
--- a/gnu/packages/gnome.scm
+++ b/gnu/packages/gnome.scm
@@ -46,6 +46,7 @@
 ;;; Copyright © 2019 Jonathan Brielmaier <jonathan.brielmaier@web.de>
 ;;; Copyright © 2019 Leo Prikler <leo.prikler@student.tugraz.at>
 ;;; Copyright © 2020 Oleg Pykhalov <go.wigust@gmail.com>
+;;; Copyright © 2020 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -5030,15 +5031,15 @@ which can read a large number of file formats.")
 (define-public rhythmbox
  (package
    (name "rhythmbox")
-   (version "3.4.3")
+   (version "3.4.4")
    (source (origin
             (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/" name "/"
+            (uri (string-append "mirror://gnome/sources/rhythmbox/"
                                 (version-major+minor version) "/"
-                                name "-" version ".tar.xz"))
+                                "rhythmbox-" version ".tar.xz"))
             (sha256
              (base32
-              "1yx3n7p9vmv23jsv98fxwq95n78awdxqm8idhyhxx2d6vk4w1hgx"))))
+              "142xcvw4l19jyr5i72nbnrihs953pvrrzcbijjn9dxmxszbv03pf"))))
    (build-system glib-or-gtk-build-system)
    (arguments
     `(#:configure-flags
@@ -7425,7 +7426,7 @@ easy, safe, and automatic.")
 (define-public tracker
   (package
     (name "tracker")
-    (version "2.2.2")
+    (version "2.3.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/tracker/"
@@ -7433,7 +7434,7 @@ easy, safe, and automatic.")
                                   "tracker-" version ".tar.xz"))
               (sha256
                (base32
-                "1rp2c6k7ajcm553p9kpni87zgi9aplm3s01rl7pk575az5i399y6"))))
+                "1nzbnvwwsk6kv6kqbxwlz8vk70l9ai6b4r9qypw51vp4qy72ny54"))))
     (build-system meson-build-system)
     (arguments
      `(#:glib-or-gtk? #t
@@ -7444,64 +7445,58 @@ easy, safe, and automatic.")
                             (assoc-ref %outputs "out") "/lib/tracker-2.0"))
        #:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'disable-broken-tests
-           (lambda _
-             ;; These fail because the SPARQL backend could not be loaded.
-             ;; That's because /etc/machine-id is missing, but
-             ;; DBUS_FATAL_WARNINGS does not help here.
-             (substitute* "tests/libtracker-sparql/meson.build"
-               (("'sparql',") ""))
-             (substitute* "tests/tracker-steroids/meson.build"
-               (("test\\(.*") ""))
-             #t))
-         ;; Two tests fail if LANG is not set.
          (add-before 'check 'pre-check
            (lambda _
-             (setenv "LANG" "en_US.UTF-8")
-             ;; For the missing /etc/machine-id.
-             (setenv "DBUS_FATAL_WARNINGS" "0")
+             ;; Some tests expect to write to $HOME.
+             (setenv "HOME" "/tmp")
              #t)))))
     (native-inputs
      `(("glib:bin" ,glib "bin")
-       ("gnome-common" ,gnome-common)
        ("gobject-introspection" ,gobject-introspection)
        ("python-pygobject" ,python-pygobject)
        ("intltool" ,intltool)
        ("pkg-config" ,pkg-config)
        ("vala" ,vala)))
     (inputs
-     `(("gtk+" ,gtk+)
-       ("dbus" ,dbus)
+     `(("dbus" ,dbus)
        ("sqlite" ,sqlite)
-       ("python" ,python)
-       ("poppler" ,poppler)
-       ("libpng" ,libpng)
-       ("libtiff" ,libtiff)
-       ("zlib" ,zlib)
        ("libxml2" ,libxml2)
-       ("libunistring" ,libunistring)
+       ("icu4c" ,icu4c)                 ; libunistring gets miner-miner-fs test to fail.
        ("json-glib" ,json-glib)
-       ("openjpeg" ,openjpeg-1)
-       ("libseccomp" ,libseccomp)
-       ("libsoup" ,libsoup)
-       ("libuuid" ,util-linux)
-       ("network-manager" ,network-manager)))
+       ("libsoup" ,libsoup)))
     (synopsis "Metadata database, indexer and search tool")
     (home-page "https://wiki.gnome.org/Projects/Tracker")
     (description
-     "Tracker is an advanced framework for first class objects with associated
-metadata and tags.  It provides a one stop solution for all metadata, tags,
-shared object databases, search tools and indexing.")
+     "Tracker is a search engine and triplestore for desktop, embedded and mobile.
+
+It is a middleware component aimed at desktop application developers who want
+their apps to browse and search user content.  It's not designed to be used
+directly by desktop users, but it provides a commandline tool named
+@command{tracker} for the adventurous.
+
+Tracker allows your application to instantly perform full-text searches across
+all documents.  This feature is used by the @{emph{search} bar in GNOME Files, for
+example.  This is achieved by indexing the user's home directory in the
+background.
+
+Tracker also allows your application to query and list content that the user
+has stored.  For example, GNOME Music displays all the music files that are
+found by Tracker.  This means that GNOME Music doesn't need to maintain a
+database of its own.
+
+If you need to go beyond simple searches, Tracker is also a linked data
+endpoint and it understands SPARQL. ")
+    ;; https://gitlab.gnome.org/GNOME/tracker/-/blob/master/COPYING:
     ;; src/libtracker-*/* and src/tracker-extract/* are covered by lgpl2.1+,
-    ;; src/gvdb/* are covered by lgpl2.0+, and the rest is gpl2+.
+    ;; libstemmer is bsd-3 and the rest is gpl2+.
     (license (list license:gpl2+
-                   license:lgpl2.1+
-                   license:lgpl2.0+))))
+                   license:bsd-3
+                   license:lgpl2.1+))))
 
 (define-public tracker-miners
   (package
     (name "tracker-miners")
-    (version "2.2.2")
+    (version "2.3.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/tracker-miners/"
@@ -7509,7 +7504,7 @@ shared object databases, search tools and indexing.")
                                   "/tracker-miners-" version ".tar.xz"))
               (sha256
                (base32
-                "0kk5xaajamb8jlm6cfdbc2m3axzr6bnph84m7697xmb0pkg8hdiw"))))
+                "1kizavw9gbdjkw4wykgv0fcl2y6fj788nycx9p4byn6ylb1277h6"))))
     (build-system meson-build-system)
     (arguments
      `(#:glib-or-gtk? #t
@@ -8739,15 +8734,14 @@ only know by its Unicode name or code point.")
 (define-public bluefish
   (package
     (name "bluefish")
-    (version "2.2.10")
+    (version "2.2.11")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "http://www.bennewitz.com/bluefish/stable/source/"
-                           name "-" version ".tar.gz"))
+                           "bluefish-" version ".tar.gz"))
        (sha256
-        (base32
-         "1jw4has7lbp77lqmzvnnjmqcf0lacjfnka873lkkwdyrpzc4c1q4"))))
+        (base32 "0a7kf78q4cj2ap4igjks9kbmmr74brsrl4y2f9wbxpl0b0v2ck2x"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("desktop-file-utils" ,desktop-file-utils)
@@ -8756,7 +8750,7 @@ only know by its Unicode name or code point.")
     (inputs
      `(("enchant" ,enchant)
        ("gtk+" ,gtk+)
-       ("python" ,python-2)
+       ("python" ,python-wrapper)
        ("xmllint" ,libxml2)
        ("gucharmap" ,gucharmap)))
     (home-page "http://bluefish.openoffice.nl")
@@ -9616,7 +9610,7 @@ for usage on small and big screens.")
 (define-public libgit2-glib
   (package
     (name "libgit2-glib")
-    (version "0.28.0.1")
+    (version "0.99.0.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/" name "/"
@@ -9624,19 +9618,20 @@ for usage on small and big screens.")
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0a0g7aw66rfgnqr4z7fgbk5zzcjq66m4rp8v4val3a212941h0g7"))))
+                "1pmrcnsa7qdda73c3dxf47733mwprmj5ljpw3acxbj6r8k27anp0"))))
     (build-system meson-build-system)
     (native-inputs
      `(("glib:bin" ,glib "bin") ;; For glib-mkenums
        ("gobject-introspection" ,gobject-introspection)
-       ("intltool" ,intltool)
-       ("libssh2" ,libssh2)
        ("pkg-config" ,pkg-config)
        ("python-pygobject" ,python-pygobject)
        ("python-wrapper" ,python-wrapper)
        ("vala" ,vala)))
     (inputs
      `(("glib" ,glib)
+       ("libssh2" ,libssh2)))
+    (propagated-inputs
+     `(;; In Requires of libgit2-glib.pc.
        ("libgit2" ,libgit2)))
     (synopsis "GLib wrapper around the libgit2 Git access library")
     (description "libgit2-glib is a GLib wrapper library around the libgit2 Git
@@ -9690,7 +9685,6 @@ higher level porcelain stuff.")
        ("json-glib" ,json-glib)
        ("libdazzle" ,libdazzle)
        ("libgee" ,libgee)
-       ("libgit2" ,libgit2) ; propagated by libgit2-glib
        ("libgit2-glib" ,libgit2-glib)
        ("libpeas" ,libpeas)
        ("libsecret" ,libsecret)
@@ -9878,3 +9872,58 @@ index files needed for Adwaita to be used outside of GNOME.")
 integrate seamlessly with the GNOME desktop.")
     (home-page "https://wiki.gnome.org/Apps/Polari")
     (license license:gpl2+)))
+
+(define-public gnome-boxes
+  (package
+    (name "gnome-boxes")
+    (version "3.35.91")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://gnome/sources/gnome-boxes/"
+                           (version-major+minor version) "/"
+                           "gnome-boxes-" version ".tar.xz"))
+       (sha256
+        (base32
+         "0l96spz6pc8q4l5p9a58cc0kgvdr7pbc89hy6ixn72k5pl3s7fxj"))))
+    (build-system meson-build-system)
+    (arguments
+     '(#:glib-or-gtk? #t
+       #:configure-flags (list "-Drdp=false"
+                               (string-append "-Dc_link_args=-Wl,-rpath="
+                                              (assoc-ref %outputs "out")
+                                              "/lib/gnome-boxes"))))
+    (native-inputs
+     `(("glib:bin" ,glib "bin")             ; for glib-compile-resources
+       ("gtk+:bin" ,gtk+ "bin")             ; for gtk-update-icon-cache
+       ("desktop-file-utils" ,desktop-file-utils) ; for update-desktop-database
+       ("itstool" ,itstool)
+       ("intltool" ,intltool)
+       ("vala" ,vala)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("libarchive" ,libarchive)
+       ("gtk" ,gtk+)
+       ("gtk-vnc" ,gtk-vnc)
+       ("libosinfo" ,libosinfo)
+       ("libsecret" ,libsecret)
+       ("libsoup" ,libsoup)
+       ("libusb" ,libusb)
+       ("libvirt" ,libvirt)
+       ("libvirt-glib" ,libvirt-glib)
+       ("libxml" ,libxml2)
+       ("spice-gtk" ,spice-gtk)
+       ("sparql-query" ,sparql-query)
+       ("vte" ,vte)
+       ("webkitgtk" ,webkitgtk)
+       ("tracker" ,tracker)
+       ("libgudev" ,libgudev)))
+    (home-page "https://wiki.gnome.org/Apps/Boxes")
+    (synopsis "View, access, and manage remote and virtual systems")
+    (description "GNOME Boxes is a simple application to view, access, and
+manage remote and virtual systems.")
+    (license (list
+              ;; For data/icons/empty-boxes.png.
+              license:cc-by2.0
+              ;; For all others.
+              license:lgpl2.0+))))
diff --git a/gnu/packages/golang.scm b/gnu/packages/golang.scm
index 630984d3c1..871b1fed2f 100644
--- a/gnu/packages/golang.scm
+++ b/gnu/packages/golang.scm
@@ -3197,7 +3197,7 @@ are semantically equal in Go (for writing tests).")
       (arguments
        '(#:import-path "golang.org/x/sync/errgroup"
          #:unpack-path "golang.org/x/sync"))
-      (synopsis "Synchronization, error propagation, and Context cancelation
+      (synopsis "Synchronization, error propagation, and Context cancellation
 for groups of goroutines working on subtasks of a common task.")
       (description "This package provides synchronization, error propagation,
 and Context cancelation for groups of goroutines working on subtasks of a
diff --git a/gnu/packages/guile.scm b/gnu/packages/guile.scm
index a5466f8672..3116f3c30a 100644
--- a/gnu/packages/guile.scm
+++ b/gnu/packages/guile.scm
@@ -250,17 +250,21 @@ without requiring the source code to be rewritten.")
             (variable "GUILE_LOAD_COMPILED_PATH")
             (files '("lib/guile/2.2/site-ccache")))))))
 
-(define-public guile-2.2/bug-fix
-  ;; This variant contains a bug fix for a relatively rare crash that could
+(define-public guile-2.2.7
+  ;; This version contains a bug fix for a relatively rare crash that could
   ;; affect shepherd as PID 1: <https://bugs.gnu.org/37757>.
   (package
     (inherit guile-2.2)
-    (version (string-append (package-version guile-2.2) "-1"))
+    (version "2.2.7")
     (source (origin
               (inherit (package-source guile-2.2))
-              (patches
-               (append (search-patches "guile-finalization-crash.patch")
-                       (origin-patches (package-source guile-2.2))))))))
+              (uri (string-append "mirror://gnu/guile/guile-" version
+                                  ".tar.xz"))
+              (sha256
+               (base32
+                "013mydzhfswqci6xmyc1ajzd59pfbdak15i0b090nhr9bzm7dxyd"))))))
+
+(define-deprecated guile-2.2/bug-fix guile-2.2.7)
 
 (define-public guile-2.2/fixed
   ;; A package of Guile 2.2 that's rarely changed.  It is the one used
@@ -291,7 +295,7 @@ without requiring the source code to be rewritten.")
     (version "3.0.0")
     (source (origin
               (inherit (package-source guile-2.2))
-              (uri (string-append "ftp://ftp.gnu.org/gnu/guile/guile-"
+              (uri (string-append "mirror://gnu/guile/guile-"
                                   version ".tar.xz"))
               (sha256
                (base32
diff --git a/gnu/packages/haskell-apps.scm b/gnu/packages/haskell-apps.scm
index 662f084fad..521aaf5870 100644
--- a/gnu/packages/haskell-apps.scm
+++ b/gnu/packages/haskell-apps.scm
@@ -615,7 +615,7 @@ Wayland, and Linux console environments alike.")
        ("ghc-sdl2" ,ghc-sdl2)
        ("ghc-sdl2-image" ,ghc-sdl2-image)
        ("ghc-sdl2-mixer" ,ghc-sdl2-mixer)))
-    (home-page "http://www.bysusanlin.com/raincat/")
+    (home-page "https://www.gamecreation.org/games/raincat")
     (synopsis "Puzzle game with a cat in lead role")
     (description "Project Raincat is a game developed by Carnegie Mellon
 students through GCS during the Fall 2008 semester.  Raincat features game
diff --git a/gnu/packages/idris.scm b/gnu/packages/idris.scm
index 4c6c5e1aef..14b16882f0 100644
--- a/gnu/packages/idris.scm
+++ b/gnu/packages/idris.scm
@@ -121,7 +121,7 @@
      (list (search-path-specification
             (variable "IDRIS_LIBRARY_PATH")
             (files '("lib/idris")))))
-    (home-page "http://www.idris-lang.org")
+    (home-page "https://www.idris-lang.org")
     (synopsis "General purpose language with full dependent types")
     (description "Idris is a general purpose language with full dependent
 types.  It is compiled, with eager evaluation.  Dependent types allow types to
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index 11a981a77f..101fe0dc2a 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -1291,7 +1291,7 @@ ISO/IEC 15444-1).")
 (define-public zimg
   (package
     (name "zimg")
-    (version "2.9.2")
+    (version "2.9.3")
     (source
       (origin
         (method git-fetch)
@@ -1300,7 +1300,7 @@ ISO/IEC 15444-1).")
               (commit (string-append "release-" version))))
         (file-name (git-file-name name version))
         (sha256
-         (base32 "0jlgrlfs9maixd8mx7gk2kfawz8ixnihkxi7vhyzfy1gq49vmxm2"))))
+         (base32 "12bs2rfmmy021087i10vxibdbbvd5vld0vk3h5hymhpz7rgszcmg"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("autoconf" ,autoconf)
diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 5229eeda06..ee1bbfbce4 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -3530,7 +3530,7 @@ testing frameworks, mocking libraries and UI validation rules.")
        #:jar-name "junit.jar"))
     (inputs
      `(("java-hamcrest-core" ,java-hamcrest-core)))
-    (home-page "http://junit.org/")
+    (home-page "https://junit.org/")
     (synopsis "Test framework for Java")
     (description
      "JUnit is a simple framework to write repeatable tests for Java projects.
@@ -4680,7 +4680,7 @@ overly clever.")
     (native-inputs
      `(("java-junit" ,java-junit)
        ("java-hamcrest-core" ,java-hamcrest-core)))
-    (home-page "http://commons.apache.org/math/")
+    (home-page "https://commons.apache.org/math/")
     (synopsis "Apache Commons mathematics library")
     (description "Commons Math is a library of lightweight, self-contained
 mathematics and statistics components addressing the most common problems not
@@ -4862,7 +4862,7 @@ are many features, including:
     (native-inputs
      `(("junit" ,java-junit)
        ("collections-test" ,java-commons-collections-test-classes)))
-    (home-page "http://commons.apache.org/beanutils/")
+    (home-page "https://commons.apache.org/beanutils/")
     (synopsis "Dynamically set or get properties in Java")
     (description "BeanUtils provides a simplified interface to reflection and
 introspection to set or get dynamically determined properties through their
@@ -4897,7 +4897,7 @@ setter and getter method.")
     (native-inputs
      `(("java-junit" ,java-junit)
        ("java-hamcrest-core" ,java-hamcrest-core)))
-    (home-page "http://commons.apache.org/io/")
+    (home-page "https://commons.apache.org/io/")
     (synopsis "Common useful IO related classes")
     (description "Commons-IO contains utility classes, stream implementations,
 file filters and endian classes.")
@@ -5013,7 +5013,7 @@ time/FastDateFormatTest.java"
          (add-after 'install 'install-doc (install-javadoc "target/apidocs")))))
     (native-inputs
      `(("java-junit" ,java-junit)))
-    (home-page "http://commons.apache.org/lang/")
+    (home-page "https://commons.apache.org/lang/")
     (synopsis "Extension of the java.lang package")
     (description "The Commons Lang components contains a set of Java classes
 that provide helper methods for standard Java classes, especially those found
@@ -5077,7 +5077,7 @@ included:
        ("java-commons-io" ,java-commons-io)
        ("java-hamcrest-all" ,java-hamcrest-all)
        ("java-easymock" ,java-easymock)))
-    (home-page "http://commons.apache.org/lang/")
+    (home-page "https://commons.apache.org/lang/")
     (synopsis "Extension of the java.lang package")
     (description "The Commons Lang components contains a set of Java classes
 that provide helper methods for standard Java classes, especially those found
@@ -5185,7 +5185,7 @@ these scripting language engines.")
        ("java-commons-beanutils" ,java-commons-beanutils)))
     (native-inputs
      `(("java-junit" ,java-junit)))
-    (home-page "http://commons.apache.org/jxpath/")
+    (home-page "https://commons.apache.org/jxpath/")
     (synopsis "Simple interpreter of an expression language called XPath.")
     (description "The org.apache.commons.jxpath package defines a simple
 interpreter of an expression language called XPath.  JXPath applies XPath
@@ -5444,7 +5444,7 @@ more!")
                     "LogKitLogger.java"))
              (delete-file-recursively "src/test")
              #t)))))
-    (home-page "http://commons.apache.org/logging/")
+    (home-page "https://commons.apache.org/logging/")
     (synopsis "Common API for logging implementations")
     (description "The Logging package is a thin bridge between different
 logging implementations.  A library that uses the commons-logging API can be
@@ -5661,7 +5661,7 @@ standards and recommendations.")
     (native-inputs
      `(("java-junit" ,java-junit)
        ("java-hamcrest-core" ,java-hamcrest-core)))
-    (home-page "http://commons.apache.org/net/")
+    (home-page "https://commons.apache.org/net/")
     (synopsis "Client library for many basic Internet protocols")
     (description "The Apache Commons Net library implements the client side of
 many basic Internet protocols.  The purpose of the library is to provide
@@ -6503,7 +6503,7 @@ JavaMail API.")
      `(("java-osgi-core" ,java-osgi-core)
        ("java-hamcrest-core" ,java-hamcrest-core)
        ("java-junit" ,java-junit)))
-    (home-page "http://logging.apache.org/log4j/2.x/")
+    (home-page "https://logging.apache.org/log4j/2.x/")
     (synopsis "API module of the Log4j logging framework for Java")
     (description
      "This package provides the API module of the Log4j logging framework for
@@ -6671,7 +6671,7 @@ This is a part of the Apache Commons Project.")
          (add-after 'install 'install-doc (install-javadoc "dist/docs/api")))))
     (native-inputs
      `(("java-junit" ,java-junit)))
-    (home-page "http://commons.apache.org/daemon/")
+    (home-page "https://commons.apache.org/daemon/")
     (synopsis "Library to launch Java applications as daemons")
     (description "The Daemon package from Apache Commons can be used to
 implement Java applications which can be launched as daemons.  For example the
@@ -9167,7 +9167,7 @@ those in Perl and JavaScript.")
        ("cglib" ,java-cglib)
        ("asm" ,java-asm)
        ("aopalliance" ,java-aopalliance)))
-    (home-page "http://testng.org")
+    (home-page "https://testng.org")
     (synopsis "Testing framework")
     (description "TestNG is a testing framework inspired from JUnit and NUnit
 but introducing some new functionalities that make it more powerful and easier
@@ -10266,7 +10266,7 @@ Dependency Injection (CDI).")
     (native-inputs
      `(("java-junit" ,java-junit)
        ("java-hamcrest-core" ,java-hamcrest-core)))
-    (home-page "http://www.joda.org/joda-convert/")
+    (home-page "https://www.joda.org/joda-convert/")
     (synopsis "Conversion between Objects and Strings")
     (description "Joda-Convert provides a small set of classes to aid
 conversion between Objects and Strings.  It is not intended to tackle the
@@ -10637,7 +10637,7 @@ against expected outcomes.")
      `(("unzip" ,unzip)
        ("java-junit" ,java-junit)
        ("java-hamcrest-core" ,java-hamcrest-core)))
-    (home-page "http://approximatrix.com/products/openchart2/")
+    (home-page "https://approximatrix.com/products/openchart2/")
     (synopsis "Simple plotting for Java")
     (description "Openchart2 provides a simple, yet powerful, interface for
 Java programmers to create two-dimensional charts and plots.  The library
@@ -10733,7 +10733,7 @@ authentication, HTTP state management, and HTTP connection management.")
        ("java-commons-logging-minimal" ,java-commons-logging-minimal)
        ("java-commons-net" ,java-commons-net)
        ("java-jsch" ,java-jsch)))
-    (home-page "http://commons.apache.org/proper/commons-vfs/")
+    (home-page "https://commons.apache.org/proper/commons-vfs/")
     (synopsis "Java file system library")
     (description "Commons VFS provides a single API for accessing various
 different file systems.  It presents a uniform view of the files from various
diff --git a/gnu/packages/kde-multimedia.scm b/gnu/packages/kde-multimedia.scm
index e87df550a9..4c1d5e7244 100644
--- a/gnu/packages/kde-multimedia.scm
+++ b/gnu/packages/kde-multimedia.scm
@@ -688,6 +688,8 @@ Its features include:
        ("solid" ,solid)))
     (home-page "https://cgit.kde.org/libkcompactdisc.git/")
     (synopsis "KDE library for playing & ripping CDs")
-    (description "KDE library for playing & ripping CDs.")
+    (description "The KDE Compact Disc library provides an API for
+applications using the KDE Platform to interface with the CD drives for audio
+CDs.")
     (license ;; GPL for programs, LGPL for libraries
      (list license:gpl2+ license:lgpl2.0+))))
diff --git a/gnu/packages/kde-pim.scm b/gnu/packages/kde-pim.scm
index 9d48475a17..07293b6bd1 100644
--- a/gnu/packages/kde-pim.scm
+++ b/gnu/packages/kde-pim.scm
@@ -52,7 +52,7 @@
        (patches (search-patches
                  "akonadi-paths.patch"
                  "akonadi-timestamps.patch"
-                 "akonadi-Revert-Make-installation-properly-relocatabl.patch"))))
+                 "akonadi-Revert-Make-installation-properly-relo.patch"))))
     (build-system qt-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -329,8 +329,8 @@ wrapping notes into KMime::Message objects.")
      `(#:tests? #f)) ;; TODO: needs dbus
     (home-page "https://api.kde.org/stable/kdepimlibs-apidocs/akonadi/html/")
     (synopsis "Akonadi search library")
-    (description "Xapian-based indexing and query infrastructure for
-Akonadi.")
+    (description "This package provides a library used to search in the
+Akonadi PIM data server.  It uses Xapian for indexing and querying.")
     (license ;; GPL for programs, LGPL for libraries
      (list license:gpl2+ license:lgpl2.0+))))
 
@@ -371,7 +371,8 @@ Akonadi.")
      `(#:tests? #f)) ;; TODO: TZ setup
     (home-page "https://api.kde.org/stable/kdepimlibs-apidocs/")
     (synopsis "Library for handling kalarm calendar data")
-    (description "This library provides an API for KAlarm alarms.")
+    (description "This library provides access to and handling of kalarm
+calendar data.")
     (license  license:lgpl2.0+)))
 
 (define-public kcalutils
@@ -454,7 +455,8 @@ functions for accessing calendar data using the kcalcore API.")
        ("qtbase" ,qtbase)))
     (home-page "https://cgit.kde.org/kdepim-apps-libs.git")
     (synopsis "KDE PIM mail related libraries and data files")
-    (description "KDE PIM mail related libraries and data files.")
+    (description "This packages provides mail related libraries and data files
+for KDE PIM.")
     (license ;; GPL for programs, LGPL for libraries
      (list license:gpl2+ license:lgpl2.0+))))
 
@@ -541,7 +543,7 @@ cryptography to the contents of the clipboard.")
              #t)))))
     (home-page "https://kontact.kde.org/")
     (synopsis "Library for shared identities between mail applications")
-    (description "Library for shared identities between mail applications.")
+    (description "This library provides an API for managing user identities.")
     (license ;; GPL for programs, LGPL for libraries, FDL for documentation
      (list license:gpl2+ license:lgpl2.0+ license:fdl1.2+))))
 
@@ -601,7 +603,9 @@ easier to do so.")
        ("openldap" ,openldap)))
     (home-page "https://api.kde.org/stable/kdepimlibs-apidocs/")
     (synopsis "Library for accessing LDAP")
-    (description "This library provides an API for LDAP.")
+    (description " This is a library for accessing LDAP with a convenient Qt
+style C++ API.  LDAP (Lightweight Directory Access Protocol) is an application
+protocol for querying and modifying directory services running over TCP/IP. ")
     (license license:lgpl2.0+)))
 
 (define-public kleopatra
@@ -694,7 +698,8 @@ and retrieving certificates from LDAP servers.")
        ("qtbase" ,qtbase)))
     (home-page "https://cgit.kde.org/mailimporter.git")
     (synopsis "KDE mail importer library")
-    (description "KDE mail importer library.")
+    (description "This package provides libraries for importing mails other
+e-mail client programs into KMail and KDE PIM.")
     (license ;; GPL for programs, LGPL for libraries
      (list license:gpl2+ license:lgpl2.0+))))
 
@@ -736,7 +741,7 @@ and retrieving certificates from LDAP servers.")
      `(#:tests? #f)) ;; TODO - 3/3 tests fail, require drkonqi
     (home-page "https://api.kde.org/stable/kdepimlibs-apidocs/")
     (synopsis "Mail transport service library")
-    (description " This library provides an API and support code for managing
+    (description "This library provides an API and support code for managing
 mail transport.")
     (license license:lgpl2.0+)))
 
@@ -760,7 +765,8 @@ mail transport.")
        ("qtbase" ,qtbase)))
     (home-page "https://api.kde.org/stable/kdepimlibs-apidocs/")
     (synopsis "Library for handling mbox mailboxes")
-    (description "A library for accessing mail storages in MBox format.")
+    (description "This is a library for handling mailboxes in mbox format,
+using a Qt/KMime C++ API.")
     (license license:lgpl2.0+ )))
 
 (define-public kmime
@@ -794,7 +800,11 @@ mail transport.")
              #t)))))
     (home-page "https://api.kde.org/stable/kdepimlibs-apidocs/")
     (synopsis "Library for handling MIME data")
-    (description "A library for MIME handling.")
+    (description "This library provides an API for handling MIME
+data.  MIME (Multipurpose Internet Mail Extensions) is an Internet Standard
+that extends the format of e-mail to support text in character sets other than
+US-ASCII, non-text attachments, multi-part message bodies, and header
+information in non-ASCII character sets.")
     (license license:lgpl2.0+)))
 
 (define-public kontactinterface
@@ -821,7 +831,8 @@ mail transport.")
        ("qtbase" ,qtbase)))
     (home-page "https://api.kde.org/stable/kdepimlibs-apidocs/")
     (synopsis "Kontact interface library")
-    (description "Kontact Interface library.")
+    (description " This library provides the glue necessary for
+application \"Parts\" to be embedded as a Kontact component (or plugin).")
     (license license:lgpl2.0+)))
 
 (define-public kpimcommon
@@ -881,8 +892,8 @@ mail transport.")
     (arguments
      `(#:tests? #f)) ;; TODO tests hang
     (home-page "https://cgit.kde.org/pimcommon.git")
-    (synopsis "Common library for KDE PIM")
-    (description "Common library for KDE PIM.")
+    (synopsis "Common libraries for KDE PIM")
+    (description "This package provides common libraries for KDE PIM.")
     (license ;; GPL for programs, LGPL for libraries
      (list license:gpl2+ license:lgpl2.0+))))
 
@@ -922,7 +933,9 @@ mail transport.")
      `(#:tests? #f)) ;; TODO - test suite hangs
     (home-page "https://api.kde.org/stable/kdepimlibs-apidocs/")
     (synopsis "Library providing a textedit with PIM-specific features")
-    (description "A library for PIM-specific text editing utilities.")
+    (description "This package provides a textedit with PIM-specific features.
+It also provides so-called rich text builders which can convert the formatted
+text in the text edit to all kinds of markup, like HTML or BBCODE.")
     (license ;; GPL for programs, LGPL for libraries, FDL for documentation
      (list license:gpl2+ license:lgpl2.0+ license:fdl1.2+))))
 
@@ -990,8 +1003,12 @@ standard protocols for e-mail transmission.")
        ("ki18n" ,ki18n)
        ("qtbase" ,qtbase)))
     (home-page "https://api.kde.org/stable/kdepimlibs-apidocs/ktnef/html/")
-    (synopsis "Viewer for mail attachments using TNEF format")
-    (description "Viewer for mail attachments using TNEF format")
+    (synopsis "Library for handling mail attachments using TNEF format")
+    (description "Ktnef is a library for handling data in the TNEF
+format (Transport Neutral Encapsulation Format, a proprietary format of e-mail
+attachment used by Microsoft Outlook and Microsoft Exchange Server).  The API
+permits access to the actual attachments, the message properties (TNEF/MAPI),
+and allows one to view/extract message formatted text in Rich Text Format.")
     (license license:lgpl2.0+)))
 
 (define-public libkdepim
@@ -1037,8 +1054,8 @@ standard protocols for e-mail transmission.")
        ("kwidgetsaddons" ,kwidgetsaddons)
        ("qtbase" ,qtbase)))
     (home-page "https://cgit.kde.org/libkdepim.git")
-    (synopsis "Libraries for common kdepim apps")
-    (description "Libraries for common kdepim apps.")
+    (synopsis "Libraries for common KDE PIM apps")
+    (description "This package provided libraries for common KDE PIM apps.")
     (license ;; GPL for programs, LGPL for libraries
      (list license:gpl2+ license:lgpl2.0+))))
 
diff --git a/gnu/packages/kde-systemtools.scm b/gnu/packages/kde-systemtools.scm
index 682a5f583c..cd1b442169 100644
--- a/gnu/packages/kde-systemtools.scm
+++ b/gnu/packages/kde-systemtools.scm
@@ -161,7 +161,15 @@ Dolphin with the version control systems: Bzr, Git, Mercurial, Subversion.")
      `(#:tests? #f)) ;; 1/1 test fails
     (home-page "https://kde.org/applications/system/org.kde.Help")
     (synopsis "KDE documentation viewer")
-    (description "KDE documentation viewer")
+    (description "KHelpCenter uses meta data files which describe the
+documentation available in the system.  Each document is represented by a meta
+data file and shown as an entry in the KHelpCenter navigation tree view.  The
+meta data contains information about title and short description of the
+document, the location of the document and some more information like how to
+search the document and translations of title and description.  Document
+hierarchy is represented as hierarchy of the meta data files.  Directories are
+also described by a meta data file which contains the same information as a
+document meta data file.")
     (license license:gpl2+)))
 
 (define-public konsole
@@ -306,7 +314,7 @@ This package is part of the KDE networking module.")
     (description "This program is developed for being used by beginner users,
 which don't know how to find information about their Linux system, and how the
 log files are in their computer.  But it is also designed for advanced users,
-who want to quickly see problems occuring on their server.
+who want to quickly see problems occurring on their server.
 
 This package is part of the KDE administration module.")
     (license license:gpl2+)))
diff --git a/gnu/packages/kerberos.scm b/gnu/packages/kerberos.scm
index 1253a58546..34e70e7994 100644
--- a/gnu/packages/kerberos.scm
+++ b/gnu/packages/kerberos.scm
@@ -97,7 +97,7 @@ authentication for client/server applications by using secret-key
 cryptography.")
     (license (license:non-copyleft "file://NOTICE"
                                    "See NOTICE in the distribution."))
-    (home-page "http://web.mit.edu/kerberos/")
+    (home-page "https://web.mit.edu/kerberos/")
     (properties '((cpe-name . "kerberos")))))
 
 (define-public shishi
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 7d8dd8db0c..dff404cd31 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2014, 2015, 2016 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019, 2020 Mark H Weaver <mhw@netris.org>
@@ -362,18 +362,18 @@ corresponding UPSTREAM-SOURCE (an origin), using the given DEBLOB-SCRIPTS."
                         "linux-" version ".tar.xz"))
     (sha256 hash)))
 
-(define-public linux-libre-5.4-version "5.4.23")
+(define-public linux-libre-5.4-version "5.4.24")
 (define-public linux-libre-5.4-pristine-source
   (let ((version linux-libre-5.4-version)
-        (hash (base32 "1jhyg2yc03fka92l7hwdajim6q5rk538hjdr1gwgvpfyyp6sla1z")))
+        (hash (base32 "1cvy3mxwzll4f9j8i3hfmi0i0zq75aiafq1jskp9n4kq9iwar83z")))
    (make-linux-libre-source version
                             (%upstream-linux-source version hash)
                             deblob-scripts-5.4)))
 
-(define-public linux-libre-4.19-version "4.19.107")
+(define-public linux-libre-4.19-version "4.19.108")
 (define-public linux-libre-4.19-pristine-source
   (let ((version linux-libre-4.19-version)
-        (hash (base32 "0h02pxzzwc5w2kfqw686bpxc13a93yq449lyzxxkxq1qilcsqjv5")))
+        (hash (base32 "18shyy1z2s8r26qb4rcz7gwl43dnmycjjywp9gss5zlfn2jyrbh9")))
     (make-linux-libre-source version
                              (%upstream-linux-source version hash)
                              deblob-scripts-4.19)))
@@ -2886,6 +2886,26 @@ device nodes from /dev/, handles hotplug events and loads drivers at boot
 time.")
     (license license:gpl2+)))
 
+;; TODO: Merge with eudev on the next rebuild cycle.
+(define-public eudev/btrfs-fix
+  (package/inherit
+   eudev
+   (version (string-append (package-version eudev) "-1"))
+   (arguments
+    (substitute-keyword-arguments (package-arguments eudev)
+      ((#:phases phases '%standard-phases)
+       `(modify-phases ,phases
+          (add-before 'configure 'patch-bindir-in-btrfs-rules
+            (lambda* (#:key outputs #:allow-other-keys)
+              ;; The "@bindir@" substitution incorrectly expands to a literal
+              ;; "${exec_prefix}" (see <https://bugs.gnu.org/39926>).  Work
+              ;; around it.
+              (let ((out (assoc-ref outputs "out")))
+                (substitute* "rules/64-btrfs.rules.in"
+                  (("@bindir@")
+                   (string-append out "/bin")))
+                #t)))))))))
+
 (define-public eudev-with-hwdb
   (deprecated-package "eudev-with-hwdb" eudev))
 
@@ -5025,7 +5045,7 @@ of flash storage.")
 (define-public libseccomp
   (package
     (name "libseccomp")
-    (version "2.4.2")
+    (version "2.4.3")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/seccomp/libseccomp/"
@@ -5033,8 +5053,7 @@ of flash storage.")
                                   "/libseccomp-" version ".tar.gz"))
               (sha256
                (base32
-                "0nsq81acrbkdr8zairxbwa33bj2a6126npp76b4srjl472sjfkxm"))
-              (patches (search-patches "libseccomp-open-aarch64.patch"))))
+                "07crwxqzvl5k2b90a47ii9wgvi09s9hsy5b5jddw9ylp351d25fg"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("which" ,which)))
diff --git a/gnu/packages/lisp-xyz.scm b/gnu/packages/lisp-xyz.scm
index 2de9b84a1b..078f88a70f 100644
--- a/gnu/packages/lisp-xyz.scm
+++ b/gnu/packages/lisp-xyz.scm
@@ -5357,10 +5357,10 @@ and @code{kqueue(2)}), a pathname library and file-system utilities.")
              #t)))))
     (synopsis "CFFI Groveller for IOLib, a Common Lisp I/O library")))
 
-(define-public sbcl-iolib
+(define sbcl-iolib+syscalls
   (package
     (inherit sbcl-iolib.asdf)
-    (name "sbcl-iolib")
+    (name "sbcl-iolib+syscalls")
     (inputs
      `(("iolib.asdf" ,sbcl-iolib.asdf)
        ("iolib.conf" ,sbcl-iolib.conf)
@@ -5375,7 +5375,7 @@ and @code{kqueue(2)}), a pathname library and file-system utilities.")
      `(("fiveam" ,sbcl-fiveam)))
     (arguments
      '(#:asd-file "iolib.asd"
-       #:asd-system-name "iolib"
+       #:asd-system-name "iolib/syscalls"
        #:test-asd-file "iolib.tests.asd"
        #:phases
        (modify-phases %standard-phases
@@ -5392,41 +5392,58 @@ and @code{kqueue(2)}), a pathname library and file-system utilities.")
                 "")))))))
     (synopsis "Common Lisp I/O library")))
 
-(define-public cl-iolib
-  (sbcl-package->cl-source-package sbcl-iolib))
-
 (define sbcl-iolib+multiplex
   (package
-    (inherit sbcl-iolib)
+    (inherit sbcl-iolib+syscalls)
     (name "sbcl-iolib+multiplex")
+    (inputs
+     `(("iolib+syscalls" ,sbcl-iolib+syscalls)
+       ,@(package-inputs sbcl-iolib+syscalls)))
     (arguments
-     (substitute-keyword-arguments (package-arguments sbcl-iolib)
+     (substitute-keyword-arguments (package-arguments sbcl-iolib+syscalls)
        ((#:asd-system-name _) "iolib/multiplex")))))
 
-(define sbcl-iolib+syscalls
-  (package
-    (inherit sbcl-iolib)
-    (name "sbcl-iolib+syscalls")
-    (arguments
-     (substitute-keyword-arguments (package-arguments sbcl-iolib)
-       ((#:asd-system-name _) "iolib/syscalls")))))
+
 
 (define sbcl-iolib+streams
   (package
-    (inherit sbcl-iolib)
+    (inherit sbcl-iolib+syscalls)
     (name "sbcl-iolib+streams")
+    (inputs
+     `(("iolib+multiplex" ,sbcl-iolib+multiplex)
+       ,@(package-inputs sbcl-iolib+syscalls)))
     (arguments
-     (substitute-keyword-arguments (package-arguments sbcl-iolib)
+     (substitute-keyword-arguments (package-arguments sbcl-iolib+syscalls)
        ((#:asd-system-name _) "iolib/streams")))))
 
 (define sbcl-iolib+sockets
   (package
-    (inherit sbcl-iolib)
+    (inherit sbcl-iolib+syscalls)
     (name "sbcl-iolib+sockets")
+    (inputs
+     `(("iolib+syscalls" ,sbcl-iolib+syscalls)
+       ("iolib+streams" ,sbcl-iolib+streams)
+       ,@(package-inputs sbcl-iolib+syscalls)))
     (arguments
-     (substitute-keyword-arguments (package-arguments sbcl-iolib)
+     (substitute-keyword-arguments (package-arguments sbcl-iolib+syscalls)
        ((#:asd-system-name _) "iolib/sockets")))))
 
+(define-public sbcl-iolib
+  (package
+    (inherit sbcl-iolib+syscalls)
+    (name "sbcl-iolib")
+    (inputs
+     `(("iolib+multiplex" ,sbcl-iolib+multiplex)
+       ("iolib+streams" ,sbcl-iolib+streams)
+       ("iolib+sockets" ,sbcl-iolib+sockets)
+       ,@(package-inputs sbcl-iolib+syscalls)))
+    (arguments
+     (substitute-keyword-arguments (package-arguments sbcl-iolib+syscalls)
+       ((#:asd-system-name _) "iolib")))))
+
+(define-public cl-iolib
+  (sbcl-package->cl-source-package sbcl-iolib))
+
 (define-public sbcl-ieee-floats
   (let ((commit "566b51a005e81ff618554b9b2f0b795d3b29398d")
         (revision "1"))
@@ -6350,16 +6367,13 @@ power of CXML is available when necessary.")
          (sha256
           (base32
            "0fw2q866yddbf23nk9pxphm9gsasx35vjyss82xzvndnjmzlqfl5"))))
-      ;; Inputs must be propagated or else packages depending on this won't have the necessary packages.
+      ;; Inputs must be propagated or else packages depending on this won't
+      ;; have the necessary packages.
       (propagated-inputs
        `(("alexandria" ,sbcl-alexandria)
          ("trivial-garbage" ,sbcl-trivial-garbage)
          ("babel" ,sbcl-babel)
          ("iolib" ,sbcl-iolib)
-         ("iolib+multiplex" ,(@@ (gnu packages lisp-xyz) sbcl-iolib+multiplex))
-         ("iolib+syscalls" ,(@@ (gnu packages lisp-xyz) sbcl-iolib+syscalls))
-         ("iolib+streams" ,(@@ (gnu packages lisp-xyz) sbcl-iolib+streams))
-         ("iolib+sockets" ,(@@ (gnu packages lisp-xyz) sbcl-iolib+sockets))
          ("ieee-floats" ,sbcl-ieee-floats)
          ("flexi-streams" ,sbcl-flexi-streams)
          ("cl-xmlspam" ,sbcl-cl-xmlspam)
@@ -11197,3 +11211,42 @@ interfaces as well as a functional and an object oriented interface.")
                          "-o" shared-lib)
                  #t)))))))
     (synopsis "MySQL driver for Common Lisp SQL interface library")))
+
+(define-public sbcl-sycamore
+  (let ((commit "fd2820fec165ad514493426dea209728f64e6d18"))
+    (package
+      (name "sbcl-sycamore")
+      (version "0.0.20120604")
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/ndantam/sycamore/")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "00bv1aj89q5vldmq92zp2364jq312zjq2mbd3iyz1s2b4widzhl7"))))
+      (build-system asdf-build-system/sbcl)
+      (arguments
+       `(#:asd-file "src/sycamore.asd"))
+      (inputs
+       `(("alexandria" ,sbcl-alexandria)
+         ("cl-ppcre" ,sbcl-cl-ppcre)))
+      (synopsis "Purely functional data structure library in Common Lisp")
+      (description
+       "Sycamore is a fast, purely functional data structure library in Common Lisp.
+If features:
+
+@itemize
+@item Fast, purely functional weight-balanced binary trees.
+@item Leaf nodes are simple-vectors, greatly reducing tree height.
+@item Interfaces for tree Sets and Maps (dictionaries).
+@item Ropes.
+@item Purely functional pairing heaps.
+@item Purely functional amortized queue.
+@end itemize\n")
+      (home-page "http://ndantam.github.io/sycamore/")
+      (license license:bsd-3))))
+
+(define-public cl-sycamore
+  (sbcl-package->cl-source-package sbcl-sycamore))
diff --git a/gnu/packages/machine-learning.scm b/gnu/packages/machine-learning.scm
index 8262a418cc..50c41dc113 100644
--- a/gnu/packages/machine-learning.scm
+++ b/gnu/packages/machine-learning.scm
@@ -798,7 +798,7 @@ computing environments.")
 (define-public python-scikit-learn
   (package
     (name "python-scikit-learn")
-    (version "0.20.4")
+    (version "0.22.1")
     (source
      (origin
        (method git-fetch)
@@ -808,7 +808,7 @@ computing environments.")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "08zbzi8yx5wdlxfx9jap61vg1malc9ajf576w7a0liv6jvvrxlpj"))))
+         "1xqxv210gsmjw094vc5ghq2y9lmm74qkk22pq6flcjzj51b86jxf"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
@@ -835,7 +835,8 @@ computing environments.")
     (inputs
      `(("openblas" ,openblas)))
     (native-inputs
-     `(("python-pytest" ,python-pytest)
+     `(("python-joblib" ,python-joblib)
+       ("python-pytest" ,python-pytest)
        ("python-pandas" ,python-pandas) ;for tests
        ("python-cython" ,python-cython)))
     (propagated-inputs
@@ -2105,7 +2106,8 @@ These include a barrier, broadcast, and allreduce.")
          "02ada2yy6km6zgk2836kg1c97yrcpalvan34p8c57446finnpki1"))))
     (build-system python-build-system)
     (native-inputs
-     `(("python-nose" ,python-nose)))
+     `(("python-joblib" ,python-joblib)
+       ("python-nose" ,python-nose)))
     (propagated-inputs
      `(("python-numba" ,python-numba)
        ("python-numpy" ,python-numpy)
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index 600c921d48..27f7820176 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -1166,7 +1166,7 @@ compresses it.")
 (define-public claws-mail
   (package
     (name "claws-mail")
-    (version "3.17.4")
+    (version "3.17.5")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1174,7 +1174,7 @@ compresses it.")
                     ".tar.xz"))
               (sha256
                (base32
-                "00mfhaac16sv67rwiq98hr4nl5zmd1h2afswwwksdcsi3q9x23jr"))))
+                "1gjrmdmhc7zzilrlss9yl86ybv9sra8v0qi7mkwv7d9azidx5kns"))))
     (build-system gnu-build-system)
     (native-inputs `(("pkg-config" ,pkg-config)))
     (inputs `(("bogofilter" ,bogofilter)
@@ -1380,7 +1380,7 @@ facilities for checking incoming mail.")
 (define-public dovecot
   (package
     (name "dovecot")
-    (version "2.3.9.3")
+    (version "2.3.10")
     (source
      (origin
        (method url-fetch)
@@ -1388,7 +1388,7 @@ facilities for checking incoming mail.")
                            (version-major+minor version) "/"
                            "dovecot-" version ".tar.gz"))
        (sha256
-        (base32 "0lcnqib63nv32xr3nr4s3x8k77mbgrhc13swjl2xqnzw4fabd7zq"))))
+        (base32 "1ibiz3k2flablkcqbkvfzsjnq5b5kxximhcrplflsjl57mr88ca7"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))
diff --git a/gnu/packages/man.scm b/gnu/packages/man.scm
index e105969666..3f31ec96b3 100644
--- a/gnu/packages/man.scm
+++ b/gnu/packages/man.scm
@@ -60,14 +60,14 @@ a flexible and convenient way.")
 (define-public man-db
   (package
     (name "man-db")
-    (version "2.9.0")
+    (version "2.9.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://savannah/man-db/man-db-"
                                   version ".tar.xz"))
               (sha256
                (base32
-                "0qg2sdn8mayya0ril484iz1r7hi46l68d2d80cr6lvc7x3csqjjx"))))
+                "0ky7aq8313xa1y0zdwdbz5yvjfjb3xy0xymbimd2d9q9bky8lgds"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index a990ffc45e..263f80f246 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -11,7 +11,7 @@
 ;;; Copyright © 2015, 2016, 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2015 Fabian Harfert <fhmgufs@web.de>
 ;;; Copyright © 2016 Roel Janssen <roel@gnu.org>
-;;; Copyright © 2016, 2018 Kei Kebreau <kkebreau@posteo.net>
+;;; Copyright © 2016, 2018, 2020 Kei Kebreau <kkebreau@posteo.net>
 ;;; Copyright © 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2016, 2017 Thomas Danckaert <post@thomasdanckaert.be>
@@ -3030,7 +3030,7 @@ point numbers.")
 (define-public wxmaxima
   (package
     (name "wxmaxima")
-    (version "20.01.3")
+    (version "20.02.4")
     (source
      (origin
        (method git-fetch)
@@ -3039,10 +3039,13 @@ point numbers.")
              (commit (string-append "Version-" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "18fj2m1qwlbavivpixph112wq9hxy3hh7c8q07djc3bhrzf2a7v7"))))
+        (base32 "106a7jrjwfmymzj70nsv44fm3jbxngr8pmkaghhpwy0ln38lhf54"))))
     (build-system cmake-build-system)
     (native-inputs
-     `(("gettext" ,gettext-minimal)))
+     `(("gettext" ,gettext-minimal)
+       ("xorg-server" ,xorg-server-for-tests)))
+    ;; TODO: Add libomp for multithreading support.
+    ;; As of right now, enabling libomp causes the imageCells.wxm test to fail.
     (inputs
      `(("wxwidgets" ,wxwidgets)
        ("maxima" ,maxima)
@@ -3051,9 +3054,16 @@ point numbers.")
        ("gtk+" ,gtk+)
        ("shared-mime-info" ,shared-mime-info)))
     (arguments
-     `(#:tests? #f ; no check target
+     `(#:test-target "test"
        #:phases
        (modify-phases %standard-phases
+         (add-before 'check 'pre-check
+           (lambda _
+             ;; Tests require a running X server.
+             (system "Xvfb :1 &")
+             (setenv "DISPLAY" ":1")
+             (setenv "HOME" (getcwd))
+             #t))
          (add-after 'install 'wrap-program
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (wrap-program (string-append (assoc-ref outputs "out")
@@ -3222,7 +3232,7 @@ parts of it.")
      `(("cunit" ,cunit)
        ("fortran" ,gfortran)
        ("perl" ,perl)))
-    (home-page "http://www.openblas.net/")
+    (home-page "https://www.openblas.net/")
     (synopsis "Optimized BLAS library based on GotoBLAS")
     (description
      "OpenBLAS is a BLAS library forked from the GotoBLAS2-1.13 BSD version.")
@@ -5232,7 +5242,7 @@ syntax-highlighted scrollable display and is designed to be fully used via
 keyboard.  Some distinctive features are auto-completion of functions and
 variables, a formula book, and quick insertion of constants from various
 fields of knowledge.")
-    (home-page "http://speedcrunch.org/")
+    (home-page "https://speedcrunch.org/")
     (license license:gpl2+)))
 
 (define-public minisat
diff --git a/gnu/packages/messaging.scm b/gnu/packages/messaging.scm
index c1d4d93c32..f8b743f766 100644
--- a/gnu/packages/messaging.scm
+++ b/gnu/packages/messaging.scm
@@ -1238,7 +1238,7 @@ for sending encrypted messages to one person or many subscribers.")
     (build-system gnu-build-system)
     (inputs
      `(("ncurses" ,ncurses)))
-    (home-page "http://ytalk.ourproject.org")
+    (home-page "https://ytalk.ourproject.org")
     (synopsis "Multi-user chat program")
     (description "Ytalk is a replacement for the BSD talk program.  Its main
 advantage is the ability to communicate with any arbitrary number of users at
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 536831c804..8914db3b0e 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -2353,6 +2353,64 @@ allows you to send JACK MIDI events (i.e. play) using your PC keyboard.")
 can connect to any JACK port and record the output into a stereo WAV file.")
     (license license:gpl2+)))
 
+(define-public jack-select
+  (package
+    (name "jack-select")
+    (version "1.5.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "jack-select" version))
+              (sha256
+               (base32
+                "1zijk9ly2fczxsnnrqr8s0ajmlyx1j1vd8gk0rm5dj5zyhhmia7f"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:modules ((guix build gnu-build-system)
+                  ((guix build python-build-system) #:prefix python:)
+                  (guix build utils))
+       #:imported-modules (,@%gnu-build-system-modules
+                           (guix build python-build-system))
+       #:make-flags
+       (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
+       #:tests? #f                      ; there are none
+       #:phases
+       (modify-phases %standard-phases
+         (replace 'configure
+           (lambda* (#:key inputs #:allow-other-keys)
+             ;; python-dbus cannot be found but it's really there.  See
+             ;; https://github.com/SpotlightKid/jack-select/issues/2
+             (substitute* "setup.py"
+               (("'dbus-python',") ""))
+             ;; Fix reference to dlopened libraries.
+             (substitute* "jackselect/alsainfo.py"
+               (("libasound.so.2")
+                (string-append (assoc-ref inputs "alsa-lib")
+                               "/lib/libasound.so.2")))
+             #t))
+         (replace 'build
+           (assoc-ref python:%standard-phases 'build))
+         (add-after 'install 'wrap
+           (assoc-ref python:%standard-phases 'wrap)))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("alsa-lib" ,alsa-lib)
+       ("python" ,python-wrapper)
+       ("python-pyudev" ,python-pyudev)
+       ("python-pyxdg" ,python-pyxdg)
+       ("python-dbus" ,python-dbus)
+       ("python-pygobject" ,python-pygobject)))
+    (home-page "https://github.com/SpotlightKid/jack-select")
+    (synopsis "Systray application to quickly change the JACK-DBus configuration")
+    (description "This application displays an icon in the system tray (also
+known as notification area) of your desktop, which shows the status of the
+JACK audio server and when you click on it, a menu pops up, which lets you
+quickly select from the JACK configuration presets you created with QjackCtl.
+When you select a preset, its JACK engine and driver configuration settings
+are loaded via DBus into JACK and then the server is restarted.  This allows
+you to switch between different audio setups with just two mouse clicks.")
+    (license license:expat)))
+
 (define-public cursynth
   (package
     (name "cursynth")
@@ -2870,7 +2928,7 @@ websites such as Libre.fm.")
                                 (find-files "instantmusic.egg-info"
                                             "PKG-INFO|.*\\.txt"))
                       #t)))))
-    (home-page "http://iyask.me/Instant-Music-Downloader/")
+    (home-page "https://github.com/yask123/Instant-Music-Downloader")
     (synopsis "Command-line program to download a song from YouTube")
     (description "InstantMusic downloads a song from YouTube in MP3 format.
 Songs can be searched by artist, name or even by a part of the song text.")
diff --git a/gnu/packages/ntp.scm b/gnu/packages/ntp.scm
index 9429778776..84790cf112 100644
--- a/gnu/packages/ntp.scm
+++ b/gnu/packages/ntp.scm
@@ -41,7 +41,7 @@
 (define-public ntp
   (package
    (name "ntp")
-   (version "4.2.8p13")
+   (version "4.2.8p14")
    (source
      (origin
        (method url-fetch)
@@ -54,7 +54,7 @@
                     (version-major+minor version)
                     "/ntp-" version ".tar.gz")))
        (sha256
-        (base32 "0f1a4fya7v5s0426nim8ydvvlcashb8hicgs9xlm76ndrz7751r8"))
+        (base32 "1dsfbrad5adwjnm3k0y0ip8dzs7r2nmw66vjil8gvapnh7qf8q0r"))
        (modules '((guix build utils)))
        (snippet
         '(begin
@@ -92,9 +92,9 @@
    (description "NTP is a system designed to synchronize the clocks of
 computers over a network.")
    (license (l:x11-style
-             "http://www.eecis.udel.edu/~mills/ntp/html/copyright.html"
+             "https://www.eecis.udel.edu/~mills/ntp/html/copyright.html"
              "A non-copyleft free licence from the University of Delaware"))
-   (home-page "http://www.ntp.org")))
+   (home-page "https://www.ntp.org")))
 
 (define-public openntpd
   (package
diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index fd0d350e45..23a0b2b4e8 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -983,7 +983,7 @@ for packaging and deployment of cross-compiled Windows applications.")
 (define-public libostree
   (package
     (name "libostree")
-    (version "2020.1")
+    (version "2020.2")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -991,7 +991,7 @@ for packaging and deployment of cross-compiled Windows applications.")
                     (version-major+minor version) "/libostree-" version ".tar.xz"))
               (sha256
                (base32
-                "0sgx81w6skiivbr2gfhljf9nvnqfwwnwfgpqqa10fjdkjrqwvpk8"))))
+                "0bbk0sg4m38g7j00hy358p2azxas87minpgz3avwma6jsylj1qjg"))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases
diff --git a/gnu/packages/patches/akonadi-Revert-Make-installation-properly-relocatabl.patch b/gnu/packages/patches/akonadi-Revert-Make-installation-properly-relo.patch
index c3964c5c05..c3964c5c05 100644
--- a/gnu/packages/patches/akonadi-Revert-Make-installation-properly-relocatabl.patch
+++ b/gnu/packages/patches/akonadi-Revert-Make-installation-properly-relo.patch
diff --git a/gnu/packages/patches/anki-mpv-args.patch b/gnu/packages/patches/anki-mpv-args.patch
new file mode 100644
index 0000000000..21b9bd0aba
--- /dev/null
+++ b/gnu/packages/patches/anki-mpv-args.patch
@@ -0,0 +1,42 @@
+Modified from upstream commit:
+https://github.com/ankitects/anki/commit/ccd715013609133c55e83924734efa78abc03326
+Fixes mpv argument syntax (support for old syntax removed in mpv 0.31):
+https://anki.tenderapp.com/discussions/ankidesktop/38186-mpvprocesserror-unable-to-start-process
+Necessary because we are currently unable to upgrade anki to the
+latest version in guix (NPM dependencies currently unpackaged).
+---
+ anki/mpv.py   | 4 ++--
+ anki/sound.py | 1 -
+ 2 files changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/anki/mpv.py b/anki/mpv.py
+index f53d9d0..563fddc 100644
+--- a/anki/mpv.py
++++ b/anki/mpv.py
+@@ -104,9 +104,9 @@ class MPVBase:
+         """
+         self.argv = [self.executable]
+         self.argv += self.default_argv
+-        self.argv += ["--input-ipc-server", self._sock_filename]
++        self.argv += ["--input-ipc-server="+self._sock_filename]
+         if self.window_id is not None:
+-            self.argv += ["--wid", str(self.window_id)]
++            self.argv += ["--wid="+str(self.window_id)]
+ 
+     def _start_process(self):
+         """Start the mpv process.
+diff --git a/anki/sound.py b/anki/sound.py
+index aa3431b..a5fce44 100644
+--- a/anki/sound.py
++++ b/anki/sound.py
+@@ -124,7 +124,6 @@ class MpvManager(MPV):
+ def setMpvConfigBase(base):
+     mpvConfPath = os.path.join(base, "mpv.conf")
+     MpvManager.default_argv += [
+-        "--no-config",
+         "--include="+mpvConfPath,
+     ]
+ 
+-- 
+2.25.1
+
diff --git a/gnu/packages/patches/guile-finalization-crash.patch b/gnu/packages/patches/guile-finalization-crash.patch
deleted file mode 100644
index 098249e49f..0000000000
--- a/gnu/packages/patches/guile-finalization-crash.patch
+++ /dev/null
@@ -1,61 +0,0 @@
-commit edf5aea7ac852db2356ef36cba4a119eb0c81ea9
-Author: Ludovic Courtès <ludo@gnu.org>
-Date:   Mon Dec 9 14:44:59 2019 +0100
-
-    Fix non-deterministic crash in 'finalization_thread_proc'.
-    
-    Fixes <https://bugs.gnu.org/37757>.
-    Reported by Jesse Gibbons <jgibbons2357@gmail.com>.
-    
-    * libguile/finalizers.c (finalization_thread_proc): Do not enter the
-    "switch (data.byte)" condition when data.n <= 0.
-
-diff --git a/libguile/finalizers.c b/libguile/finalizers.c
-index c5d69e8e3..94a6e6b0a 100644
---- a/libguile/finalizers.c
-+++ b/libguile/finalizers.c
-@@ -1,4 +1,4 @@
--/* Copyright (C) 2012, 2013, 2014 Free Software Foundation, Inc.
-+/* Copyright (C) 2012, 2013, 2014, 2019 Free Software Foundation, Inc.
-  *
-  * This library is free software; you can redistribute it and/or
-  * modify it under the terms of the GNU Lesser General Public License
-@@ -211,21 +211,26 @@ finalization_thread_proc (void *unused)
- 
-       scm_without_guile (read_finalization_pipe_data, &data);
-       
--      if (data.n <= 0 && data.err != EINTR) 
-+      if (data.n <= 0)
-         {
--          perror ("error in finalization thread");
--          return NULL;
-+          if (data.err != EINTR)
-+            {
-+              perror ("error in finalization thread");
-+              return NULL;
-+            }
-         }
--
--      switch (data.byte)
-+      else
-         {
--        case 0:
--          scm_run_finalizers ();
--          break;
--        case 1:
--          return NULL;
--        default:
--          abort ();
-+          switch (data.byte)
-+            {
-+            case 0:
-+              scm_run_finalizers ();
-+              break;
-+            case 1:
-+              return NULL;
-+            default:
-+              abort ();
-+            }
-         }
-     }
- }
diff --git a/gnu/packages/patches/libseccomp-open-aarch64.patch b/gnu/packages/patches/libseccomp-open-aarch64.patch
deleted file mode 100644
index 6e62825892..0000000000
--- a/gnu/packages/patches/libseccomp-open-aarch64.patch
+++ /dev/null
@@ -1,27 +0,0 @@
-This patch fixes the build failure on AArch64 reported
-at <https://github.com/seccomp/libseccomp/pull/191>.
-
-From cc21c1b48d35f9d34ef2da0e184af3855bfeee5f Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
-Date: Wed, 20 Nov 2019 14:11:12 -0500
-Subject: [PATCH] tests: use openat instead of open
-
-On arm64, __NR_open is not defined, openat is always used. Let's use openat
-instead, which is defined for architectures currently.
----
- tests/15-basic-resolver.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/tests/15-basic-resolver.c b/tests/15-basic-resolver.c
-index 6badef1..4884faf 100644
---- a/tests/15-basic-resolver.c
-+++ b/tests/15-basic-resolver.c
-@@ -55,7 +55,7 @@ int main(int argc, char *argv[])
- 	unsigned int arch;
- 	char *name = NULL;
- 
--	if (seccomp_syscall_resolve_name("open") != __NR_open)
-+	if (seccomp_syscall_resolve_name("openat") != __NR_openat)
- 		goto fail;
- 	if (seccomp_syscall_resolve_name("read") != __NR_read)
- 		goto fail;
diff --git a/gnu/packages/patches/qemu-CVE-2020-8608.patch b/gnu/packages/patches/qemu-CVE-2020-8608.patch
new file mode 100644
index 0000000000..4cb017c795
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2020-8608.patch
@@ -0,0 +1,269 @@
+Fix CVE-2020-8608:
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8608
+https://www.openwall.com/lists/oss-security/2020/02/06/2
+
+Patches copied from upstream dependency repository:
+
+https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843
+https://gitlab.freedesktop.org/slirp/libslirp/commit/30648c03b27fb8d9611b723184216cd3174b6775
+
+From 68ccb8021a838066f0951d4b2817eb6b6f10a843 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
+Date: Mon, 27 Jan 2020 10:24:14 +0100
+Subject: [PATCH] tcp_emu: fix unsafe snprintf() usages
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Various calls to snprintf() assume that snprintf() returns "only" the
+number of bytes written (excluding terminating NUL).
+
+https://pubs.opengroup.org/onlinepubs/9699919799/functions/snprintf.html#tag_16_159_04
+
+"Upon successful completion, the snprintf() function shall return the
+number of bytes that would be written to s had n been sufficiently
+large excluding the terminating null byte."
+
+Before patch ce131029, if there isn't enough room in "m_data" for the
+"DCC ..." message, we overflow "m_data".
+
+After the patch, if there isn't enough room for the same, we don't
+overflow "m_data", but we set "m_len" out-of-bounds. The next time an
+access is bounded by "m_len", we'll have a buffer overflow then.
+
+Use slirp_fmt*() to fix potential OOB memory access.
+
+Reported-by: Laszlo Ersek <lersek@redhat.com>
+Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
+Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
+Message-Id: <20200127092414.169796-7-marcandre.lureau@redhat.com>
+---
+ src/tcp_subr.c | 44 +++++++++++++++++++++-----------------------
+ 1 file changed, 21 insertions(+), 23 deletions(-)
+
+diff --git a/src/tcp_subr.c b/src/tcp_subr.c
+index a699117..a72c86b 100644
+--- a/slirp/src/tcp_subr.c
++++ b/slirp/src/tcp_subr.c
+@@ -643,8 +643,7 @@ int tcp_emu(struct socket *so, struct mbuf *m)
+                 NTOHS(n1);
+                 NTOHS(n2);
+                 m_inc(m, snprintf(NULL, 0, "%d,%d\r\n", n1, n2) + 1);
+-                m->m_len = snprintf(m->m_data, M_ROOM(m), "%d,%d\r\n", n1, n2);
+-                assert(m->m_len < M_ROOM(m));
++                m->m_len = slirp_fmt(m->m_data, M_ROOM(m), "%d,%d\r\n", n1, n2);
+             } else {
+                 *eol = '\r';
+             }
+@@ -684,9 +683,9 @@ int tcp_emu(struct socket *so, struct mbuf *m)
+             n4 = (laddr & 0xff);
+ 
+             m->m_len = bptr - m->m_data; /* Adjust length */
+-            m->m_len += snprintf(bptr, M_FREEROOM(m),
+-                                 "ORT %d,%d,%d,%d,%d,%d\r\n%s", n1, n2, n3, n4,
+-                                 n5, n6, x == 7 ? buff : "");
++            m->m_len += slirp_fmt(bptr, M_FREEROOM(m),
++                                  "ORT %d,%d,%d,%d,%d,%d\r\n%s",
++                                  n1, n2, n3, n4, n5, n6, x == 7 ? buff : "");
+             return 1;
+         } else if ((bptr = (char *)strstr(m->m_data, "27 Entering")) != NULL) {
+             /*
+@@ -719,10 +718,9 @@ int tcp_emu(struct socket *so, struct mbuf *m)
+             n4 = (laddr & 0xff);
+ 
+             m->m_len = bptr - m->m_data; /* Adjust length */
+-            m->m_len += snprintf(bptr, M_FREEROOM(m),
+-                         "27 Entering Passive Mode (%d,%d,%d,%d,%d,%d)\r\n%s",
+-                         n1, n2, n3, n4, n5, n6, x == 7 ? buff : "");
+-
++            m->m_len += slirp_fmt(bptr, M_FREEROOM(m),
++                                  "27 Entering Passive Mode (%d,%d,%d,%d,%d,%d)\r\n%s",
++                                  n1, n2, n3, n4, n5, n6, x == 7 ? buff : "");
+             return 1;
+         }
+ 
+@@ -745,8 +743,8 @@ int tcp_emu(struct socket *so, struct mbuf *m)
+         if (m->m_data[m->m_len - 1] == '\0' && lport != 0 &&
+             (so = tcp_listen(slirp, INADDR_ANY, 0, so->so_laddr.s_addr,
+                              htons(lport), SS_FACCEPTONCE)) != NULL)
+-            m->m_len = snprintf(m->m_data, M_ROOM(m),
+-                                "%d", ntohs(so->so_fport)) + 1;
++            m->m_len = slirp_fmt0(m->m_data, M_ROOM(m),
++                                  "%d", ntohs(so->so_fport));
+         return 1;
+ 
+     case EMU_IRC:
+@@ -765,10 +763,10 @@ int tcp_emu(struct socket *so, struct mbuf *m)
+                 return 1;
+             }
+             m->m_len = bptr - m->m_data; /* Adjust length */
+-            m->m_len += snprintf(bptr, M_FREEROOM(m),
+-                                 "DCC CHAT chat %lu %u%c\n",
+-                                 (unsigned long)ntohl(so->so_faddr.s_addr),
+-                                 ntohs(so->so_fport), 1);
++            m->m_len += slirp_fmt(bptr, M_FREEROOM(m),
++                                  "DCC CHAT chat %lu %u%c\n",
++                                  (unsigned long)ntohl(so->so_faddr.s_addr),
++                                  ntohs(so->so_fport), 1);
+         } else if (sscanf(bptr, "DCC SEND %256s %u %u %u", buff, &laddr, &lport,
+                           &n1) == 4) {
+             if ((so = tcp_listen(slirp, INADDR_ANY, 0, htonl(laddr),
+@@ -776,10 +774,10 @@ int tcp_emu(struct socket *so, struct mbuf *m)
+                 return 1;
+             }
+             m->m_len = bptr - m->m_data; /* Adjust length */
+-            m->m_len += snprintf(bptr, M_FREEROOM(m),
+-                         "DCC SEND %s %lu %u %u%c\n", buff,
+-                         (unsigned long)ntohl(so->so_faddr.s_addr),
+-                         ntohs(so->so_fport), n1, 1);
++            m->m_len += slirp_fmt(bptr, M_FREEROOM(m),
++                                  "DCC SEND %s %lu %u %u%c\n", buff,
++                                  (unsigned long)ntohl(so->so_faddr.s_addr),
++                                  ntohs(so->so_fport), n1, 1);
+         } else if (sscanf(bptr, "DCC MOVE %256s %u %u %u", buff, &laddr, &lport,
+                           &n1) == 4) {
+             if ((so = tcp_listen(slirp, INADDR_ANY, 0, htonl(laddr),
+@@ -787,10 +785,10 @@ int tcp_emu(struct socket *so, struct mbuf *m)
+                 return 1;
+             }
+             m->m_len = bptr - m->m_data; /* Adjust length */
+-            m->m_len += snprintf(bptr, M_FREEROOM(m),
+-                         "DCC MOVE %s %lu %u %u%c\n", buff,
+-                         (unsigned long)ntohl(so->so_faddr.s_addr),
+-                         ntohs(so->so_fport), n1, 1);
++            m->m_len += slirp_fmt(bptr, M_FREEROOM(m),
++                                  "DCC MOVE %s %lu %u %u%c\n", buff,
++                                  (unsigned long)ntohl(so->so_faddr.s_addr),
++                                  ntohs(so->so_fport), n1, 1);
+         }
+         return 1;
+ 
+-- 
+2.25.1
+
+From 30648c03b27fb8d9611b723184216cd3174b6775 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
+Date: Mon, 27 Jan 2020 10:24:09 +0100
+Subject: [PATCH] util: add slirp_fmt() helpers
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Various calls to snprintf() in libslirp assume that snprintf() returns
+"only" the number of bytes written (excluding terminating NUL).
+
+https://pubs.opengroup.org/onlinepubs/9699919799/functions/snprintf.html#tag_16_159_04
+
+"Upon successful completion, the snprintf() function shall return the
+number of bytes that would be written to s had n been sufficiently
+large excluding the terminating null byte."
+
+Introduce slirp_fmt() that handles several pathological cases the
+way libslirp usually expect:
+
+- treat error as fatal (instead of silently returning -1)
+
+- fmt0() will always \0 end
+
+- return the number of bytes actually written (instead of what would
+have been written, which would usually result in OOB later), including
+the ending \0 for fmt0()
+
+- warn if truncation happened (instead of ignoring)
+
+Other less common cases can still be handled with strcpy/snprintf() etc.
+
+Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
+Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
+Message-Id: <20200127092414.169796-2-marcandre.lureau@redhat.com>
+---
+ src/util.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ src/util.h |  3 +++
+ 2 files changed, 65 insertions(+)
+
+diff --git a/src/util.c b/src/util.c
+index e596087..e3b6257 100644
+--- a/slirp/src/util.c
++++ b/slirp/src/util.c
+@@ -364,3 +364,65 @@ void slirp_pstrcpy(char *buf, int buf_size, const char *str)
+     }
+     *q = '\0';
+ }
++
++static int slirp_vsnprintf(char *str, size_t size,
++                           const char *format, va_list args)
++{
++    int rv = vsnprintf(str, size, format, args);
++
++    if (rv < 0) {
++        g_error("vsnprintf() failed: %s", g_strerror(errno));
++    }
++
++    return rv;
++}
++
++/*
++ * A snprintf()-like function that:
++ * - returns the number of bytes written (excluding optional \0-ending)
++ * - dies on error
++ * - warn on truncation
++ */
++int slirp_fmt(char *str, size_t size, const char *format, ...)
++{
++    va_list args;
++    int rv;
++
++    va_start(args, format);
++    rv = slirp_vsnprintf(str, size, format, args);
++    va_end(args);
++
++    if (rv > size) {
++        g_critical("vsnprintf() truncation");
++    }
++
++    return MIN(rv, size);
++}
++
++/*
++ * A snprintf()-like function that:
++ * - always \0-end (unless size == 0)
++ * - returns the number of bytes actually written, including \0 ending
++ * - dies on error
++ * - warn on truncation
++ */
++int slirp_fmt0(char *str, size_t size, const char *format, ...)
++{
++    va_list args;
++    int rv;
++
++    va_start(args, format);
++    rv = slirp_vsnprintf(str, size, format, args);
++    va_end(args);
++
++    if (rv >= size) {
++        g_critical("vsnprintf() truncation");
++        if (size > 0)
++            str[size - 1] = '\0';
++        rv = size;
++    } else {
++        rv += 1; /* include \0 */
++    }
++
++    return rv;
++}
+diff --git a/src/util.h b/src/util.h
+index e9c3073..5530c46 100644
+--- a/slirp/src/util.h
++++ b/slirp/src/util.h
+@@ -181,4 +181,7 @@ static inline int slirp_socket_set_fast_reuse(int fd)
+ 
+ void slirp_pstrcpy(char *buf, int buf_size, const char *str);
+ 
++int slirp_fmt(char *str, size_t size, const char *format, ...);
++int slirp_fmt0(char *str, size_t size, const char *format, ...);
++
+ #endif
+-- 
+2.25.1
+
diff --git a/gnu/packages/patches/sdl-pango-fix-explicit-SDLPango_CopyFTBitmapToSurface.patch b/gnu/packages/patches/sdl-pango-fix-explicit-SDLPango_CopyFTBitmapTo.patch
index 3d4b10cc10..3d4b10cc10 100644
--- a/gnu/packages/patches/sdl-pango-fix-explicit-SDLPango_CopyFTBitmapToSurface.patch
+++ b/gnu/packages/patches/sdl-pango-fix-explicit-SDLPango_CopyFTBitmapTo.patch
diff --git a/gnu/packages/patches/spice-fix-test-armhf.patch b/gnu/packages/patches/spice-fix-test-armhf.patch
deleted file mode 100644
index 5c51bd6ede..0000000000
--- a/gnu/packages/patches/spice-fix-test-armhf.patch
+++ /dev/null
@@ -1,19 +0,0 @@
-Fix test failure on armhf and ppc64el:
-https://gitlab.freedesktop.org/spice/spice-server/issues/31
-
-Taken from upstream:
-https://gitlab.freedesktop.org/spice/spice/commit/19f9f454e0777d851f26d14df0c7984267c57015
-
-diff --git a/server/tests/test-qxl-parsing.c b/server/tests/test-qxl-parsing.c
-index 60ca8f88c62441e02577ced21e4f60a08ad4171a..234bdabc9ce619d0799b5136f1d72357b0b2f490 100644
---- a/server/tests/test-qxl-parsing.c
-+++ b/server/tests/test-qxl-parsing.c
-@@ -96,7 +96,7 @@ static void test_memslot_invalid_slot_id(void)
-     RedMemSlotInfo mem_info;
-     init_meminfo(&mem_info);
- 
--    memslot_get_virt(&mem_info, 1 << mem_info.memslot_id_shift, 16, 0);
-+    memslot_get_virt(&mem_info, UINT64_C(1) << mem_info.memslot_id_shift, 16, 0);
- }
- 
- static void test_memslot_invalid_addresses(void)
diff --git a/gnu/packages/patches/woff2-libbrotli.patch b/gnu/packages/patches/woff2-libbrotli.patch
deleted file mode 100644
index ffa941cf92..0000000000
--- a/gnu/packages/patches/woff2-libbrotli.patch
+++ /dev/null
@@ -1,84 +0,0 @@
-From: Eric Bavier <bavier@member.fsf.org>
-Date: Sat, 2 Apr 2016 01:31:03 -0500
-Subject: [PATCH] Build against external libbrotli.
-
----
- Makefile         | 20 ++++----------------
- src/woff2_dec.cc |  2 +-
- src/woff2_enc.cc |  2 +-
- 3 files changed, 6 insertions(+), 18 deletions(-)
-
-diff --git a/Makefile b/Makefile
-index 92b8d54..618a751 100644
---- a/Makefile
-+++ b/Makefile
-@@ -1,6 +1,6 @@
- OS := $(shell uname)
- 
--CPPFLAGS = -I./brotli/dec/ -I./brotli/enc/ -I./src
-+CPPFLAGS := -I./src $(shell pkg-config --cflags libbrotlienc libbrotlidec)
- 
- CC ?= gcc
- CXX ?= g++
-@@ -22,29 +22,17 @@ OUROBJ = font.o glyph.o normalize.o table_tags.o transform.o \
-          woff2_dec.o woff2_enc.o woff2_common.o woff2_out.o \
-          variable_length.o
- 
--BROTLI = brotli
--ENCOBJ = $(BROTLI)/enc/*.o
--DECOBJ = $(BROTLI)/dec/*.o
-+BROTLI_LIBS := $(shell pkg-config --libs libbrotlienc libbrotlidec)
- 
- OBJS = $(patsubst %, $(SRCDIR)/%, $(OUROBJ))
- EXECUTABLES=woff2_compress woff2_decompress
- 
- EXE_OBJS=$(patsubst %, $(SRCDIR)/%.o, $(EXECUTABLES))
- 
--ifeq (,$(wildcard $(BROTLI)/*))
--  $(error Brotli dependency not found : you must initialize the Git submodule)
--endif
--
- all : $(OBJS) $(EXECUTABLES)
- 
--$(EXECUTABLES) : $(EXE_OBJS) deps
--	$(CXX) $(LFLAGS) $(OBJS) $(ENCOBJ) $(DECOBJ) $(SRCDIR)/$@.o -o $@
--
--deps :
--	$(MAKE) -C $(BROTLI)/dec
--	$(MAKE) -C $(BROTLI)/enc
-+$(EXECUTABLES) : $(EXE_OBJS) $(OBJS)
-+	$(CXX) $(LDFLAGS) $(OBJS) $(SRCDIR)/$@.o -o $@ $(BROTLI_LIBS) $(LIBS)
- 
- clean :
- 	rm -f $(OBJS) $(EXE_OBJS) $(EXECUTABLES)
--	$(MAKE) -C $(BROTLI)/dec clean
--	$(MAKE) -C $(BROTLI)/enc clean
-diff --git a/src/woff2_dec.cc b/src/woff2_dec.cc
-index 837eede..98c01ce 100644
---- a/src/woff2_dec.cc
-+++ b/src/woff2_dec.cc
-@@ -27,7 +27,7 @@
- #include <memory>
- #include <utility>
- 
--#include "./decode.h"
-+#include "brotli/dec/decode.h"
- #include "./buffer.h"
- #include "./port.h"
- #include "./round.h"
-diff --git a/src/woff2_enc.cc b/src/woff2_enc.cc
-index 920c614..00d74da 100644
---- a/src/woff2_enc.cc
-+++ b/src/woff2_enc.cc
-@@ -23,7 +23,7 @@
- #include <string>
- #include <vector>
- 
--#include "./encode.h"
-+#include "brotli/enc/encode.h"
- #include "./buffer.h"
- #include "./font.h"
- #include "./normalize.h"
--- 
-2.7.3
-
diff --git a/gnu/packages/perl.scm b/gnu/packages/perl.scm
index a296d7af0b..f1d00065f8 100644
--- a/gnu/packages/perl.scm
+++ b/gnu/packages/perl.scm
@@ -9,13 +9,13 @@
 ;;; Copyright © 2016, 2017, 2018, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 ng0 <ng0@n0.is>
 ;;; Copyright © 2016 Alex Sassmannshausen <alex@pompo.co>
-;;; Copyright © 2016, 2018 Roel Janssen <roel@gnu.org>
+;;; Copyright © 2016, 2018, 2020 Roel Janssen <roel@gnu.org>
 ;;; Copyright © 2016 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2017 Raoul J.P. Bonnal <ilpuccio.febo@gmail.com>
 ;;; Copyright © 2017, 2018 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017 Adriano Peluso <catonano@gmail.com>
-;;; Copyright © 2017, 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2017 Christopher Allan Webber <cwebber@dustycloud.org>
 ;;; Copyright © 2018, 2019 Oleg Pykhalov <go.wigust@gmail.com>
@@ -334,6 +334,33 @@ signal running perl code from another thread, asynchronously, and
 sometimes even without using a single syscall.")
     (license (package-license perl))))
 
+(define-public perl-attribute-util
+  (package
+    (name "perl-attribute-util")
+    (version "1.07")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://cpan.metacpan.org/authors/id/D/DA/DANKOGAI/"
+                    "Attribute-Util-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1z79d845dy96lg0pxw0kr2za0gniwnpn963r7ccajfpj6k7jfw07"))))
+    (build-system perl-build-system)
+    (home-page "https://metacpan.org/pod/Attribute::Util")
+    (synopsis "Assorted general utility attributes")
+    (description "This packages provides various utility functions.  When used
+without argument, this module provides four universally accessible attributes
+of general interest as follows:
+@itemize
+@item Abstract
+@item Alias
+@item Memoize
+@item Method
+@item SigHandler
+@end itemize")
+    (license (package-license perl))))
+
 (define-public perl-autovivification
   (package
     (name "perl-autovivification")
@@ -1423,6 +1450,28 @@ libraries to load configuration data from multiple different file formats.  It
 supports XML, YAML, JSON, Apache-style configuration, and Perl code.")
     (license (package-license perl))))
 
+(define-public perl-config-inifiles
+  (package
+    (name "perl-config-inifiles")
+    (version "3.000002")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://cpan.metacpan.org/authors/id/S/SH/SHLOMIF/"
+                           "Config-IniFiles-" version ".tar.gz"))
+       (sha256
+        (base32 "02dsz3inh5jwgaxmbcz8qxwgin8mkhm6vj9jyzfmm3dr5pnxcbnr"))))
+    (build-system perl-build-system)
+    (propagated-inputs
+     `(("perl-module-build" ,perl-module-build)
+       ("perl-io-stringy",perl-io-stringy)))
+    (home-page "https://metacpan.org/pod/Config::IniFiles")
+    (synopsis "Package for configuration files outside your Perl script")
+    (description "This package provides a way to have readable configuration
+files outside your Perl script.  Configurations can be imported, sections
+can be grouped, and settings can be accessed from a tied hash.")
+    (license (package-license perl))))
+
 (define-public perl-config-autoconf
   (package
     (name "perl-config-autoconf")
@@ -2260,14 +2309,14 @@ hours, minutes, seconds, and time zones.")
 (define-public perl-datetime
   (package
     (name "perl-datetime")
-    (version "1.51")
+    (version "1.52")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "mirror://cpan/authors/id/D/DR/DROLSKY/"
                            "DateTime-" version ".tar.gz"))
        (sha256
-        (base32 "1ibfq6acz1ih28vl613yygbb3r2d8ykx6di669vajhvswl6xl8ny"))))
+        (base32 "1z1xpifh2kpyw7rlc8ivg9rl0qmabjq979gjp0s9agdjf9hqp0k7"))))
     (build-system perl-build-system)
     (native-inputs
      `(("perl-cpan-meta-check" ,perl-cpan-meta-check)
@@ -2500,15 +2549,14 @@ parsing logic.")
 (define-public perl-datetime-format-strptime
   (package
     (name "perl-datetime-format-strptime")
-    (version "1.76")
+    (version "1.77")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "mirror://cpan/authors/id/D/DR/DROLSKY/"
                            "DateTime-Format-Strptime-" version ".tar.gz"))
        (sha256
-        (base32
-         "03dmzi9n6jmnfjmf0ld5sdmi3ib6jrhz25cjzv7d58ypdr32cg2r"))))
+        (base32 "0jiy2yc9h9932ykb8x2l1j3ff8ms3p4426m947r5clygis1kr91g"))))
     (build-system perl-build-system)
     (propagated-inputs
      `(("perl-datetime" ,perl-datetime)
@@ -5177,6 +5225,26 @@ Bezier Curve Drawing\".")
 both positive and negative, in various ways.")
     (license perl-license)))
 
+(define-public perl-math-vecstat
+  (package
+    (name "perl-math-vecstat")
+    (version "0.08")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://cpan/authors/id/A/AS/ASPINELLI/Math-VecStat-"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "03bdcl9pn2bc9b50c50nhnr7m9wafylnb3v21zlch98h9c78x6j0"))))
+    (build-system perl-build-system)
+    (home-page "http://search.cpan.org/dist/Math-VecStat")
+    (synopsis "Basic numeric stats on vectors")
+    (description "This package provides some basic statistics on numerical
+vectors.  All the subroutines can take a reference to the vector to be
+operated on.")
+    (license (package-license perl))))
+
 (define-public perl-memoize
   (package
     (name "perl-memoize")
@@ -9182,15 +9250,14 @@ still work as expected.")
 (define-public perl-timedate
   (package
     (name "perl-timedate")
-    (version "2.31")
+    (version "2.32")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "mirror://cpan/authors/id/A/AT/ATOOMIC/"
                            "TimeDate-" version ".tar.gz"))
        (sha256
-        (base32
-         "10ad6l4ii2iahdpw8h0xqwasc1jblan31h597q3js4j5nbnhywjw"))))
+        (base32 "1mmk9dy4a26a4d4c5rswqqhxr0295j93bjbcx91d3qkmwfcs1v1l"))))
     (build-system perl-build-system)
     (home-page "https://metacpan.org/release/TimeDate")
     (synopsis "Date parsing/formatting subroutines")
@@ -9634,14 +9701,14 @@ attribute names.")
 (define-public perl-xs-object-magic
   (package
     (name "perl-xs-object-magic")
-    (version "0.04")
+    (version "0.05")
     (source (origin
               (method url-fetch)
-              (uri (string-append "mirror://cpan/authors/id/F/FL/FLORA/"
+              (uri (string-append "mirror://cpan/authors/id/E/ET/ETHER/"
                                   "XS-Object-Magic-" version ".tar.gz"))
               (sha256
                (base32
-                "03fghj7hq0fiicmfdxhmzfm4mzv7s097pgkd32ji7jnljvhm9six"))))
+                "0njyy4y0zax4zz55y82dlm9cly1pld1lcxb281s12bp9rrhf9j9x"))))
     (build-system perl-build-system)
     (native-inputs
      `(("perl-extutils-depends" ,perl-extutils-depends)
diff --git a/gnu/packages/plotutils.scm b/gnu/packages/plotutils.scm
index ac8a6f46fc..f71e2824f1 100644
--- a/gnu/packages/plotutils.scm
+++ b/gnu/packages/plotutils.scm
@@ -75,7 +75,7 @@
               ("libxaw" ,libxaw)))
 
     (home-page
-     "http://www.gnu.org/software/plotutils/")
+     "https://www.gnu.org/software/plotutils/")
     (synopsis "Plotting utilities and library")
     (description
      "GNU Plotutils is a package for plotting and working with 2D graphics. 
diff --git a/gnu/packages/pretty-print.scm b/gnu/packages/pretty-print.scm
index e6560696f5..18e557611e 100644
--- a/gnu/packages/pretty-print.scm
+++ b/gnu/packages/pretty-print.scm
@@ -25,6 +25,7 @@
 (define-module (gnu packages pretty-print)
   #:use-module (guix packages)
   #:use-module (guix licenses)
+  #:use-module (guix git-download)
   #:use-module (guix download)
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system gnu)
@@ -166,21 +167,20 @@ different programming languages.")
 (define-public fmt
   (package
     (name "fmt")
-    (version "6.0.0")
+    (version "6.1.2")
     (source (origin
               (method url-fetch)
-              (uri (string-append
-                    "https://github.com/fmtlib/fmt/releases/download/"
-                    version "/fmt-" version ".zip"))
+              (uri (string-append "https://github.com/fmtlib/fmt/releases/download/"
+                                  version "/fmt-" version ".zip"))
               (sha256
                (base32
-                "0h148anbaqgch6n69pxsvs1c9wmykgd052wmzgdia7qpz8w6p8dl"))))
+                "1s1hxaby5byb07rgmrk4a0q11fxhz7b42khch7sp2qx974y0yrb3"))))
     (build-system cmake-build-system)
     (arguments
      '(#:configure-flags '("-DBUILD_SHARED_LIBS=ON")))
     (native-inputs
      `(("unzip" ,unzip)))
-    (home-page "http://fmtlib.net/")
+    (home-page "https://fmt.dev")
     (synopsis "Small and fast C++ formatting library")
     (description
      "@code{fmt} (formerly @code{cppformat}) is a formatting library for C++.
diff --git a/gnu/packages/python-web.scm b/gnu/packages/python-web.scm
index 08d75525be..d294e43d45 100644
--- a/gnu/packages/python-web.scm
+++ b/gnu/packages/python-web.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2016, 2017 Danny Milosavljevic <dannym+a@scratchpost.org>
 ;;; Copyright © 2013, 2014, 2015, 2016 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2016, 2017 Marius Bakke <mbakke@fastmail.com>
-;;; Copyright © 2015, 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Roel Janssen <roel@gnu.org>
 ;;; Copyright © 2016, 2017, 2020 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2016, 2017 ng0 <ng0@n0.is>
@@ -82,14 +82,14 @@
 (define-public python-aiohttp
   (package
     (name "python-aiohttp")
-    (version "3.5.4")
+    (version "3.6.2")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "aiohttp" version))
        (sha256
         (base32
-         "1gy95ni8rkdwzir9zf14ivpfwp02g69xbhibldykff0rzbs86k4w"))))
+         "09pkw6f1790prnrq0k8cqgnf1qy57ll8lpmc6kld09q7zw4vi6i5"))))
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))                    ;missing pytest-timeout
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index bc5ff3d2d8..2428608a30 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -671,6 +671,26 @@ API for locking files.")
 (define-public python2-lockfile
   (package-with-python2 python-lockfile))
 
+(define-public python-filelock
+  (package
+    (name "python-filelock")
+    (version "3.0.12")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "filelock" version))
+       (sha256
+        (base32
+         "0ngzlvb5j8gqs2nxlp2b0jhzii792h66wsn694qm8kqixr225n0q"))))
+    (build-system python-build-system)
+    (home-page
+     "https://github.com/benediktschmitt/py-filelock")
+    (synopsis "Platform independent file lock")
+    (description "@code{filelock} contains a single module implementing
+a platform independent file lock in Python, which provides a simple way of
+inter-process communication.")
+    (license license:unlicense)))
+
 (define-public python-semantic-version
   (package
     (name "python-semantic-version")
@@ -2378,28 +2398,30 @@ e.g. filters, callbacks and errbacks can all be promises.")
 (define-public python-virtualenv
   (package
     (name "python-virtualenv")
-    (version "16.1.0")
+    (version "20.0.8")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "virtualenv" version))
        (sha256
         (base32
-         "0242cg3hdq3qdvx5flyrki8lpwlgwf5k45c21ks5049fv7ygm6gq"))))
+         "096r7g5cv85vxymg9iqbn5z749613snlvd6p3rf1nxnrd386j0qz"))))
     (build-system python-build-system)
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (add-before 'check 'disable-failing-test
-           (lambda _
-             ;; Disable failing test.  See upstream bug report
-             ;; https://github.com/pypa/virtualenv/issues/957
-             (substitute* "tests/test_virtualenv.py"
-               (("skipif.*") "skipif(True, reason=\"Guix\")\n"))
-             #t)))))
     (native-inputs
      `(("python-mock" ,python-mock)
-       ("python-pytest" ,python-pytest)))
+       ("python-pytest" ,python-pytest)
+       ;; NOTE: guix lint remarks that "python-setuptools should probably not
+       ;; be an input at all". However, removing the input makes the build error:
+       ;; File "setup.py", line 4, in <module>
+       ;;   raise RuntimeError("setuptools >= 41 required to build")
+       ("python-setuptools" ,python-setuptools)
+       ("python-setuptools-scm" ,python-setuptools-scm)))
+    (inputs
+     `(("python-appdirs" ,python-appdirs)
+       ("python-distlib" ,python-distlib)
+       ("python-filelock" ,python-filelock)
+       ("python-six" ,python-six)
+       ("python-importlib-metadata" ,python-importlib-metadata)))
     (home-page "https://virtualenv.pypa.io/")
     (synopsis "Virtual Python environment builder")
     (description
@@ -3175,17 +3197,36 @@ used in text editing environments to provide a complete and integrated
 feature-set for programming Python effectively.")
     (license license:expat)))
 
+(define-public python-pathspec
+  (package
+    (name "python-pathspec")
+    (version "0.7.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pathspec" version))
+       (sha256
+        (base32
+         "15lvs4awlg8xzl0l4gk9y53xx4yqmqvsv44pglv39m70y85afajn"))))
+    (build-system python-build-system)
+    (home-page "https://github.com/cpburnz/python-path-specification")
+    (synopsis "Utility library for gitignore style pattern matching of file paths")
+    (description
+     "This package provides a utility library for gitignore style pattern
+matching of file paths.")
+    (license license:mpl2.0)))
+
 (define-public python-black
   (package
     (name "python-black")
-    (version "18.6b4")
+    (version "19.10b0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "black" version))
        (sha256
         (base32
-         "0i4sfqgz6w15vd50kbhi7g7rifgqlf8yfr8y78rypd56q64qn592"))))
+         "0f8mr0yzj78q1dx7v6ggbgfir2wv0n5z2shfbbvfdq7910xbgvf2"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
@@ -3195,16 +3236,39 @@ feature-set for programming Python effectively.")
              (let ((python3 (which "python3")))
                (substitute* '("tests/data/fmtonoff.py"
                               "tests/data/string_prefixes.py"
-                              "tests/data/function.py")
+                              "tests/data/function.py"
+                              "tests/data/python37.py")
                  (("#!/usr/bin/env python3(\\.[0-9]+)?" _ minor-version)
                   (string-append "#!" python3 (if (string? minor-version)
                                                   minor-version
-                                                  ""))))))))))
+                                                  "")))))
+             #t))
+         (add-after 'unpack 'disable-broken-tests
+           (lambda _
+             ;; These tests are supposed to be skipped when the blackd
+             ;; dependencies are missing, but this doesn't quite work.
+             (substitute* "tests/test_black.py"
+               (("( *)class BlackDTestCase.*" match indent)
+                (string-append indent "@unittest.skip(\"no blackd deps\")\n"
+                               indent "class BlackDTestCase(unittest.TestCase):\n"))
+               (("web.Application") "False")
+               (("@unittest_run_loop") ""))
+
+             ;; Patching the above file breaks the self test
+             (substitute* "tests/test_black.py"
+               (("( *)def test_self" match indent)
+                (string-append indent "@unittest.skip(\"guix\")\n" match)))
+             #t)))))
     (propagated-inputs
      `(("python-click" ,python-click)
        ("python-attrs" ,python-attrs)
        ("python-appdirs" ,python-appdirs)
-       ("python-toml" ,python-toml)))
+       ("python-pathspec" ,python-pathspec)
+       ("python-regex" ,python-regex)
+       ("python-toml" ,python-toml)
+       ("python-typed-ast" ,python-typed-ast)))
+    (native-inputs
+     `(("python-setuptools-scm" ,python-setuptools-scm)))
     (home-page "https://github.com/ambv/black")
     (synopsis "The uncompromising code formatter")
     (description "Black is the uncompromising Python code formatter.")
@@ -3743,21 +3807,20 @@ color scales, and color space conversion easy.  It has support for:
 (define-public python-pygit2
   (package
     (name "python-pygit2")
-    (version "0.28.2")
+    (version "1.1.0")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "pygit2" version))
        (sha256
-        (base32 "11kzj5mjkspvplnpdb6bj8dcj6rgmkk986k8hjcklyg5yaxkz32d"))))
+        (base32 "1hs0pqqzn1yjxqk86nq7p0lvsklwnlyi5xwyzr7d5nrs19dmsjbg"))))
     (build-system python-build-system)
     (arguments
      '(#:tests? #f))            ; tests don't run correctly in our environment
     (propagated-inputs
-     `(("python-six" ,python-six)
+     `(("python-cached-property" ,python-cached-property)
        ("python-cffi" ,python-cffi)
-       ("libgit2" ,libgit2)
-       ("python-tox" ,python-tox)))
+       ("libgit2" ,libgit2)))
     (native-inputs
      `(("python-pytest" ,python-pytest)))
     (home-page "https://github.com/libgit2/pygit2")
@@ -3767,9 +3830,6 @@ library, libgit2 implements Git plumbing.")
     ;; GPL2.0 only, with linking exception.
     (license license:gpl2)))
 
-(define-public python2-pygit2
-  (package-with-python2 python-pygit2))
-
 (define-public python-pyparsing
   (package
     (name "python-pyparsing")
@@ -4413,6 +4473,40 @@ by pycodestyle.")
 (define-public python2-autopep8
   (package-with-python2 python-autopep8))
 
+(define-public python-distlib
+  (package
+    (name "python-distlib")
+    (version "0.3.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "distlib" version ".zip"))
+       (sha256
+        (base32
+         "08fyi2r246733vharl2yckw20rilci28r91mzrnnvcr638inw5if"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-before 'build 'no-/bin/sh
+           (lambda _
+             (substitute* '("distlib/scripts.py" "tests/test_scripts.py")
+               (("/bin/sh") (which "sh")))
+             #t))
+         (add-before 'check 'prepare-test-env
+           (lambda _
+             (setenv "HOME" "/tmp")
+             ;; NOTE: Any value works, the variable just has to be present.
+             (setenv "SKIP_ONLINE" "1")
+             #t)))))
+    (native-inputs `(("unzip" ,unzip)))
+    (home-page "https://bitbucket.org/pypa/distlib")
+    (synopsis "Distribution utilities")
+    (description "Distlib is a library which implements low-level functions that
+relate to packaging and distribution of Python software.  It is intended to be
+used as the basis for third-party packaging tools.")
+    (license license:psfl)))
+
 (define-public python-distutils-extra
   (package
     (name "python-distutils-extra")
@@ -7236,6 +7330,12 @@ printing of sub-tables by specifying a row range.")
                                "linker_exe='gcc',"
                                "linker_so='gcc -shared')")))
              #t))
+         (add-after 'unpack 'disable-tuning
+           (lambda _
+             (substitute* "setup.py"
+               (("cpu_flags = .*")
+                "cpu_flags = ['sse2']\n"))
+             #t))
          (replace 'build
            (lambda* (#:key inputs #:allow-other-keys)
              (invoke "python" "setup.py" "build"
@@ -7253,7 +7353,7 @@ printing of sub-tables by specifying a row range.")
      `(("python-cython" ,python-cython)
        ("pkg-config" ,pkg-config)))
     (inputs
-     `(("hdf5" ,hdf5)
+     `(("hdf5" ,hdf5-1.10)
        ("bzip2" ,bzip2)
        ("zlib" ,zlib)))
     (home-page "http://www.pytables.org/")
@@ -7265,6 +7365,84 @@ designed to efficiently cope with extremely large amounts of data.")
 (define-public python2-tables
   (package-with-python2 python-tables))
 
+(define-public python-pytest-black
+  (package
+    (name "python-pytest-black")
+    (version "0.3.8")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pytest-black" version))
+       (sha256
+        (base32
+         "04lppqydxm0f3f3x0l8hj7v0j6d8syj34jc37yzqwqcyqsnaga81"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-pytest" ,python-pytest)
+       ("python-black" ,python-black)
+       ("python-toml" ,python-toml)))
+    (native-inputs
+     `(("python-setuptools-scm" ,python-setuptools-scm)))
+    (home-page "https://github.com/shopkeep/pytest-black")
+    (synopsis "Pytest plugin to enable format checking with black")
+    (description
+     "This package provides a pytest plugin to enable format checking with the
+Python code formatter \"black\".")
+    (license license:expat)))
+
+(define-public python-get-version
+  (package
+    (name "python-get-version")
+    (version "2.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "get_version" version))
+       (sha256
+        (base32
+         "1g15jyx33vkxavv9hwv275cs4g9bp2i1y942raw3fxamq8kbaml1"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-pygments" ,python-pygments)
+       ("python-pytest" ,python-pytest)
+       ("python-pytest-black" ,python-pytest-black)
+       ("python-pytest-cov" ,python-pytest-cov)
+       ("python-setuptools" ,python-setuptools)
+       ("python-testpath" ,python-testpath)))
+    (home-page "https://github.com/flying-sheep/get_version")
+    (synopsis "Version helper in the spirit of versioneer")
+    (description
+     "This package provides a version helper that lets you automatically use
+the latest @code{vX.X.X} Git tag as the version in your Python package.  It
+also supports getting the version from Python source distributions or, once
+your package is installed, via @code{pkg_resources} (part of
+@code{setuptools}).")
+    (license license:gpl3+)))
+
+(define-public python-legacy-api-wrap
+  (package
+    (name "python-legacy-api-wrap")
+    (version "1.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "legacy-api-wrap" version))
+       (sha256
+        (base32
+         "06qhp0g543dy98vpa41hwdalvdbsjfc3ldk474yr9sd75mhl8jh3"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-get-version" ,python-get-version)
+       ("python-pytest" ,python-pytest)
+       ("python-pytest-black" ,python-pytest-black)
+       ("python-pytest-cov" ,python-pytest-cov)
+       ("python-setuptools" ,python-setuptools)))
+    (home-page "https://github.com/flying-sheep/legacy-api-wrap")
+    (synopsis "Legacy API wrapper")
+    (description "This module defines a decorator to wrap legacy APIs.  The
+primary use case is APIs defined before keyword-only parameters existed.")
+    (license license:gpl3+)))
+
 (define-public python-pyasn1
   (package
     (name "python-pyasn1")
@@ -8479,7 +8657,7 @@ minimal and fast API targeting the following uses:
 @item write and deploy hybrid multi-process applications
 @item write scripts to administer multiple environments
 @end enumerate")
-    (home-page "http://codespeak.net/execnet/")
+    (home-page "https://codespeak.net/execnet/")
     (license license:expat)))
 
 (define-public python2-execnet
@@ -14421,7 +14599,12 @@ such as figshare or Zenodo.")
          "183kg1rhzz3hqizvphkd8hlbf1zxfx8737zhfkmqzxi71jmdw7pd"))))
     (build-system python-build-system)
     (native-inputs
-     `(("python-tox" ,python-tox)
+     `(("python-appdirs" ,python-appdirs)
+       ("python-distlib" ,python-distlib)
+       ("python-importlib-metadata" ,python-importlib-metadata)
+       ("python-filelock" ,python-filelock)
+       ("python-six" ,python-six)
+       ("python-tox" ,python-tox)
        ("python-virtualenv" ,python-virtualenv)))
     (home-page "https://github.com/k-bx/python-semver")
     (synopsis "Python helper for Semantic Versioning")
diff --git a/gnu/packages/re2c.scm b/gnu/packages/re2c.scm
index f81d4f67f7..427195fd5f 100644
--- a/gnu/packages/re2c.scm
+++ b/gnu/packages/re2c.scm
@@ -36,7 +36,7 @@
               (base32
                "05xq0571mkgr20v827jm63nhsirr8arghg4fszzswrmrnl3dfk0s"))))
     (build-system gnu-build-system)
-    (home-page "http://re2c.org/")
+    (home-page "https://re2c.org/")
     (synopsis "Lexer generator for C/C++")
     (description
      "@code{re2c} generates minimalistic hard-coded state machine (as opposed
diff --git a/gnu/packages/rust-apps.scm b/gnu/packages/rust-apps.scm
index 72c982f23c..af51c0fcfc 100644
--- a/gnu/packages/rust-apps.scm
+++ b/gnu/packages/rust-apps.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2019, 2020 John Soo <jsoo1@asu.edu>
 ;;; Copyright © 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
+;;; Copyright © 2020 Michael Rohleder <mike@rohleder.de>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -184,11 +185,11 @@ also knows about symlinks, extended attributes, and Git.")
                ;; Manpages
                (install-file "doc/fd.1" (string-append out "/share/man/man1"))
                ;; Completions
-               (install-completion "^fd.bash$" "/etc/bash-completion.d")
+               (install-completion "^fd.bash$" "/etc/bash_completion.d")
                (install-completion "^fd.fish$" "/share/fish/vendor_completions.d")
                (install-completion "^_fd$" "/share/zsh/site-functions")
-               (rename-file (string-append out "/etc/bash-completion.d/fd.bash")
-                            (string-append out "/etc/bash-completion.d/fd"))
+               (rename-file (string-append out "/etc/bash_completion.d/fd.bash")
+                            (string-append out "/etc/bash_completion.d/fd"))
                #t))))))
     (inputs `(("jemalloc" ,jemalloc)))
     (home-page "https://github.com/sharkdp/fd")
diff --git a/gnu/packages/samba.scm b/gnu/packages/samba.scm
index 4eef7de5d7..2fec3c2a43 100644
--- a/gnu/packages/samba.scm
+++ b/gnu/packages/samba.scm
@@ -421,47 +421,51 @@ key-value pair databases and a real LDAP database.")
     (license lgpl3+)))
 
 (define-public ppp
-  (package
-    (name "ppp")
-    (version "2.4.8")
-    (source (origin
-              (method git-fetch)
-              (uri (git-reference
-                    (url "https://github.com/paulusmack/ppp")
-                    (commit (string-append "ppp-" version))))
-              (file-name (git-file-name name version))
-              (sha256
-               (base32
-                "1i88m79h6g3fzsb4yw3k8bq1grsx3hsyawm7id2vcaab0gfqzjjv"))))
-    (build-system gnu-build-system)
-    (arguments
-     '(#:tests? #f ; no check target
-       #:make-flags '("CC=gcc")
-       #:phases
-       (modify-phases %standard-phases
-         (add-before 'configure 'patch-Makefile
-           (lambda* (#:key inputs #:allow-other-keys)
-             (let ((libc    (assoc-ref inputs "libc"))
-                   (openssl (assoc-ref inputs "openssl"))
-                   (libpcap (assoc-ref inputs "libpcap")))
-               (substitute* "pppd/Makefile.linux"
-                 (("/usr/include/crypt\\.h")
-                  (string-append libc "/include/crypt.h"))
-                 (("/usr/include/openssl")
-                  (string-append openssl "/include/openssl"))
-                 (("/usr/include/pcap-bpf.h")
-                  (string-append libpcap "/include/pcap-bpf.h")))
-               #t))))))
-    (inputs
-     `(("libpcap" ,libpcap)
-       ("openssl" ,(@ (gnu packages tls) openssl))))
-    (synopsis "Implementation of the Point-to-Point Protocol")
-    (home-page "https://ppp.samba.org/")
-    (description
-     "The Point-to-Point Protocol (PPP) provides a standard way to establish
+  ;; This git commit contains unreleased fixes for CVE-2020-8597.
+  (let ((revision "1")
+        (commit "8d45443bb5c9372b4c6a362ba2f443d41c5636af"))
+    (package
+      (name "ppp")
+      (version (git-version "2.4.8" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/paulusmack/ppp")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "06cf8fb84l3h2zy5da4j7k2j1qjv2gfqn986sf43xgj75605aks2"))))
+      (build-system gnu-build-system)
+      (arguments
+       '(#:tests? #f                    ; no check target
+         #:make-flags '("CC=gcc")
+         #:phases
+         (modify-phases %standard-phases
+           (add-before 'configure 'patch-Makefile
+             (lambda* (#:key inputs #:allow-other-keys)
+               (let ((libc    (assoc-ref inputs "libc"))
+                     (openssl (assoc-ref inputs "openssl"))
+                     (libpcap (assoc-ref inputs "libpcap")))
+                 (substitute* "pppd/Makefile.linux"
+                   (("/usr/include/crypt\\.h")
+                    (string-append libc "/include/crypt.h"))
+                   (("/usr/include/openssl")
+                    (string-append openssl "/include/openssl"))
+                   (("/usr/include/pcap-bpf.h")
+                    (string-append libpcap "/include/pcap-bpf.h")))
+                 #t))))))
+      (inputs
+       `(("libpcap" ,libpcap)
+         ("openssl" ,(@ (gnu packages tls) openssl))))
+      (synopsis "Implementation of the Point-to-Point Protocol")
+      (home-page "https://ppp.samba.org/")
+      (description
+       "The Point-to-Point Protocol (PPP) provides a standard way to establish
 a network connection over a serial link.  At present, this package supports IP
 and IPV6 and the protocols layered above them, such as TCP and UDP.")
-    ;; pppd, pppstats and pppdump are under BSD-style notices.
-    ;; some of the pppd plugins are GPL'd.
-    ;; chat is public domain.
-    (license (list bsd-3 bsd-4 gpl2+ public-domain))))
+      ;; pppd, pppstats and pppdump are under BSD-style notices.
+      ;; some of the pppd plugins are GPL'd.
+      ;; chat is public domain.
+      (license (list bsd-3 bsd-4 gpl2+ public-domain)))))
+
diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index 52c060744b..e311de0638 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -755,7 +755,7 @@ utility functions for all standard Scheme implementations.")
 (define-public scm
   (package
     (name "scm")
-    (version "5f2")
+    (version "5f3")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -763,7 +763,7 @@ utility functions for all standard Scheme implementations.")
                     version ".zip"))
               (sha256
                (base32
-                "050ijb51jm1cij9g3r89zl9rawsrikhbb5y8zb7lspb7bsxq5w99"))))
+                "1jxxlhmgal26mpcl97kz37djkn97rfy9h5pvw0hah6f3f6w49j97"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases
diff --git a/gnu/packages/sdl.scm b/gnu/packages/sdl.scm
index 26c9bd5eb3..90719f7e5e 100644
--- a/gnu/packages/sdl.scm
+++ b/gnu/packages/sdl.scm
@@ -345,7 +345,7 @@ SDL.")
          "sdl-pango-api_additions.patch"
          "sdl-pango-blit_overflow.patch"
          "sdl-pango-fillrect_crash.patch"
-         "sdl-pango-fix-explicit-SDLPango_CopyFTBitmapToSurface.patch"
+         "sdl-pango-fix-explicit-SDLPango_CopyFTBitmapTo.patch"
          "sdl-pango-matrix_declarations.patch"
          "sdl-pango-sans-serif.patch"))))
     (build-system gnu-build-system)
diff --git a/gnu/packages/shells.scm b/gnu/packages/shells.scm
index 8fb941bdcd..8708b703ef 100644
--- a/gnu/packages/shells.scm
+++ b/gnu/packages/shells.scm
@@ -383,7 +383,7 @@ written by Paul Haahr and Byron Rakitzis.")
                 (with-directory-excursion bin
                   (symlink "tcsh" "csh"))
                 #t))))))
-    (home-page "http://www.tcsh.org/")
+    (home-page "https://www.tcsh.org/")
     (synopsis "Unix shell based on csh")
     (description
      "Tcsh is an enhanced, but completely compatible version of the Berkeley
diff --git a/gnu/packages/skarnet.scm b/gnu/packages/skarnet.scm
index 2db42240af..829af9d000 100644
--- a/gnu/packages/skarnet.scm
+++ b/gnu/packages/skarnet.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2015 Claes Wallin <claes.wallin@greatsinodevelopment.com>
 ;;; Copyright © 2016 Eric Le Bihan <eric.le.bihan.dev@free.fr>
 ;;; Copyright © 2017 Z. Ren <zren@dlut.edu.cn>
-;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2020 Oleg Pykhalov <go.wigust@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -104,14 +104,14 @@ complexity.")))
 (define-public s6
   (package
    (name "s6")
-   (version "2.8.0.1")
+   (version "2.9.0.1")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "http://skarnet.org/software/s6/s6-"
                          version ".tar.gz"))
      (sha256
-      (base32 "1n1i3jm3kp9ii54cxj1sgh89m6nyna7vhy8714ma6py1frdqzq6v"))))
+      (base32 "0mvcjrz8nlj9p2zclmcv22b4y6bqzd2iz38arhgc989vdvrbmkg0"))))
    (build-system gnu-build-system)
    (inputs `(("skalibs" ,skalibs)
              ("execline" ,execline)))
@@ -179,14 +179,14 @@ as an alternative to the BIND, djbdns or other DNS clients.")))
 (define-public s6-networking
   (package
    (name "s6-networking")
-   (version "2.3.1.1")
+   (version "2.3.1.2")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "http://skarnet.org/software/s6-networking/s6-networking-"
                          version ".tar.gz"))
      (sha256
-      (base32 "127i7ig5wdgjbkjf0py0g96llc6cbxij22ns2j7bwa95figinhcx"))))
+      (base32 "1029bgwfmv903y5ji93j75m7p2jgchdxya1khxzb42q2z7yxnlyr"))))
     (build-system gnu-build-system)
     (inputs `(("skalibs" ,skalibs)
               ("execline" ,execline)
@@ -222,14 +222,14 @@ clock synchronization.")))
 (define-public s6-rc
   (package
    (name "s6-rc")
-   (version "0.5.1.1")
+   (version "0.5.1.2")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "http://skarnet.org/software/s6-rc/s6-rc-"
                          version ".tar.gz"))
      (sha256
-      (base32 "0lmg517l8inn7bi57q35rjd7b4jmqlmkhrbvs5ybbhinhd12qzi5"))))
+      (base32 "18m8jsx3bkj566p6xwwnsvdckk10n8wqnhp0na2k88i295h4rnjp"))))
     (build-system gnu-build-system)
     (inputs `(("skalibs" ,skalibs)
               ("execline" ,execline)
@@ -263,7 +263,7 @@ environment.")))
 (define-public s6-portable-utils
   (package
    (name "s6-portable-utils")
-   (version "2.2.2.1")
+   (version "2.2.2.2")
    (source
     (origin
      (method url-fetch)
@@ -271,7 +271,7 @@ environment.")))
            "http://skarnet.org/software/s6-portable-utils/s6-portable-utils-"
            version ".tar.gz"))
      (sha256
-      (base32 "074kizkxjwvmxspxg69fr8r0lbiy61l2n5nzgbfvwvhc6lj34iqy"))))
+      (base32 "1k3la37q46n93vjwk9wm9ym4w87z6lqzv43f03qd0vqj9k94mpv3"))))
     (build-system gnu-build-system)
     (inputs `(("skalibs" ,skalibs)))
     (arguments
@@ -295,7 +295,7 @@ systems and other constrained environments, but they work everywhere.")))
 (define-public s6-linux-init
   (package
    (name "s6-linux-init")
-   (version "1.0.3.1")
+   (version "1.0.4.0")
    (source
     (origin
      (method url-fetch)
@@ -303,7 +303,7 @@ systems and other constrained environments, but they work everywhere.")))
            "http://skarnet.org/software/s6-linux-init/s6-linux-init-"
            version ".tar.gz"))
      (sha256
-      (base32 "1yq2xnp41a1lqpjzvq5jawgy64jwaxalvjdnlvgdpi9bkicgasi1"))))
+      (base32 "176mgkqxlp6gb6my66dv73xsp7adfxbjp5hjyh35sykqkr4kfyfy"))))
     (build-system gnu-build-system)
     (inputs
      `(("execline" ,execline)
@@ -340,7 +340,7 @@ all the details.")))
 (define-public s6-linux-utils
   (package
    (name "s6-linux-utils")
-   (version "2.5.1.1")
+   (version "2.5.1.2")
    (source
     (origin
      (method url-fetch)
@@ -348,7 +348,7 @@ all the details.")))
            "http://skarnet.org/software/s6-linux-utils/s6-linux-utils-"
            version ".tar.gz"))
      (sha256
-      (base32 "00nw2phd9prgv29hzqzwjnh4y0ivkzhx3srn6n1rlyr4ydhikxi5"))))
+      (base32 "0w4jms9qyb5kx9zcyd3gzri60rrii2rbmh08s59ckg4awy27py86"))))
     (build-system gnu-build-system)
     (inputs `(("skalibs" ,skalibs)))
     (arguments
diff --git a/gnu/packages/sphinx.scm b/gnu/packages/sphinx.scm
index 1940b36a33..323d5b4457 100644
--- a/gnu/packages/sphinx.scm
+++ b/gnu/packages/sphinx.scm
@@ -5,7 +5,7 @@
 ;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
 ;;; Copyright © 2016, 2017, 2018, 2019 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2017 Danny Milosavljevic <dannym+a@scratchpost.org>
-;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Frederick M. Muriithi <fredmanglis@gmail.com>
 ;;; Copyright © 2017 Christopher Allan Webber <cwebber@dustycloud.org>
 ;;; Copyright © 2017 Julien Lepiller <julien@lepiller.eu>
@@ -149,13 +149,13 @@ sources.")
 (define-public python-sphinxcontrib-applehelp
   (package
     (name "python-sphinxcontrib-applehelp")
-    (version "1.0.1")
+    (version "1.0.2")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "sphinxcontrib-applehelp" version))
               (sha256
                (base32
-                "15rqmgphj4wqf4m5wnzxgmwxx5jwfzb0j0nb94ql0x5wnar0mapd"))))
+                "0n5wrn4l7x6gxvi1g7c6y72hkxgc223axz1jykipaxhfr1g76wm0"))))
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))                    ;XXX: circular dependency on Sphinx
@@ -195,13 +195,13 @@ to code blocks.")
 (define-public python-sphinxcontrib-devhelp
   (package
     (name "python-sphinxcontrib-devhelp")
-    (version "1.0.1")
+    (version "1.0.2")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "sphinxcontrib-devhelp" version))
               (sha256
                (base32
-                "0d2a57kqxl72i55rns0ly1i044y2x234b9sdi89ajc3kjdvv0r3c"))))
+                "1r1qngsbjqbg4rj93kpj44qqy7n4x5khldkr0c3ffhlnggx1lzzz"))))
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))                    ;XXX: circular dependency on Sphinx
@@ -215,13 +215,13 @@ to code blocks.")
 (define-public python-sphinxcontrib-htmlhelp
   (package
     (name "python-sphinxcontrib-htmlhelp")
-    (version "1.0.2")
+    (version "1.0.3")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "sphinxcontrib-htmlhelp" version))
               (sha256
                (base32
-                "08l4x8a2l4xjqdd5rhvmfsqihmlgg4prdayj9b6pigaii6gzjw26"))))
+                "16v5jdnibwrqjdr5aqchgyzpwy3rgamwhdf4kidv5nxj65zbpxg8"))))
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))                    ;XXX: circular dependency on Sphinx
@@ -300,13 +300,13 @@ commands into documents, helping you to keep your command examples up to date.")
 (define-public python-sphinxcontrib-qthelp
   (package
     (name "python-sphinxcontrib-qthelp")
-    (version "1.0.2")
+    (version "1.0.3")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "sphinxcontrib-qthelp" version))
               (sha256
                (base32
-                "0vs09m6kf5vhiivpi5s5pks59iq0lqlsbkdycpqlysg53bhmqikr"))))
+                "0wjsp96d262shzkx7pb7pra7mmf0j8c5rz56i6x0vdsqw1z7ccsc"))))
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))                    ;XXX: circular dependency on Sphinx
@@ -320,13 +320,13 @@ documents.")
 (define-public python-sphinxcontrib-serializinghtml
   (package
     (name "python-sphinxcontrib-serializinghtml")
-    (version "1.1.3")
+    (version "1.1.4")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "sphinxcontrib-serializinghtml" version))
               (sha256
                (base32
-                "09sj3nwahwr4iymg86gczbh151cfczqhf2kclbblzh2jh0zv7vy0"))))
+                "1g3pbx0g88zd9xzcrbaypa2k60axrh92vf5j76wsk0p9hv6fr87a"))))
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))                    ;XXX: circular dependency on Sphinx
@@ -359,13 +359,13 @@ builder does not support SVG images natively (e.g. LaTeX).")
 (define-public python-sphinxcontrib-websupport
   (package
     (name "python-sphinxcontrib-websupport")
-    (version "1.1.0")
+    (version "1.2.0")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "sphinxcontrib-websupport" version))
               (sha256
                (base32
-                "1ff3ix76xi1y6m99qxhaq5161ix9swwzydilvdya07mgbcvpzr4x"))))
+                "1smma7r0rhwcmbfvvkfs5djfz1qm8wbpcvp084ca6dmw2b9zplxs"))))
     (build-system python-build-system)
     (arguments
      ;; FIXME: Tests depend on Sphinx, which depends on this.
diff --git a/gnu/packages/spice.scm b/gnu/packages/spice.scm
index a57e0151ca..3445c64924 100644
--- a/gnu/packages/spice.scm
+++ b/gnu/packages/spice.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016 David Craven <david@craven.ch>
-;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2019 Marius Bakke <mbakke@fastmail.com>
 ;;;
@@ -98,7 +98,7 @@ system to use the host GPU to accelerate 3D rendering.")
 (define-public spice-protocol
   (package
     (name "spice-protocol")
-    (version "0.14.0")
+    (version "0.14.1")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -106,7 +106,7 @@ system to use the host GPU to accelerate 3D rendering.")
                 "spice-protocol-" version ".tar.bz2"))
               (sha256
                (base32
-                "1b3f44c13pqsp7aabmcinfbmgl79038bp5548l5pjs16lcfam95n"))))
+                "0ahk5hlanwhbc64r80xmchdav3ls156cvh9l68a0l22bhdhxmrkr"))))
     (build-system gnu-build-system)
     (synopsis "Protocol headers for the SPICE protocol")
     (description "SPICE (the Simple Protocol for Independent Computing
@@ -191,16 +191,15 @@ which allows users to view a desktop computing environment.")
 (define-public spice
   (package
     (name "spice")
-    (version "0.14.2")
+    (version "0.14.3")
     (source (origin
               (method url-fetch)
               (uri (string-append
                 "https://www.spice-space.org/download/releases/"
                 "spice-server/spice-" version ".tar.bz2"))
-              (patches (search-patches "spice-fix-test-armhf.patch"))
               (sha256
                (base32
-                "19r999py9v9c7md2bb8ysj809ag1hh6djl1ik8jcgx065s4b60xj"))))
+                "05512vkfayw18ypg4acqbbpr72nsnsz9bj7k8c2wyrvnl3j4n7am"))))
     (build-system gnu-build-system)
     (propagated-inputs
       `(("openssl" ,openssl)
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 81956c85e2..13d64be498 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -693,14 +693,14 @@ analysis.")
 (define-public r-survival
   (package
     (name "r-survival")
-    (version "3.1-8")
+    (version "3.1-11")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "survival" version))
        (sha256
         (base32
-         "15fj4y8c107bwq22amx88r5hw7qndlcbr9sapzrpkpr7iqz3kkyf"))))
+         "1fbhbm3bnpg1nmj37h1d76x813ggvwk0cp51ixmmgb3pz47i5xj4"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-matrix" ,r-matrix)))
@@ -1088,26 +1088,25 @@ using just two functions: melt and dcast (or acast).")
 (define-public r-ggplot2
   (package
     (name "r-ggplot2")
-    (version "3.2.1")
+    (version "3.3.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "ggplot2" version))
        (sha256
-        (base32 "0mjswqiqcwm0aqxll16bx2kwa6c9km3aql87bdj4347n1ali94g3"))))
+        (base32 "0j21am605kqqzlwhm45kaj0m2irnmy2vz0j7kzi9f0qdzrv3q3ij"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-digest" ,r-digest)
+       ("r-glue" ,r-glue)
        ("r-gtable" ,r-gtable)
-       ("r-lazyeval" ,r-lazyeval)
+       ("r-isoband" ,r-isoband)
        ("r-mass" ,r-mass)
        ("r-mgcv" ,r-mgcv)
        ("r-tibble" ,r-tibble)
-       ("r-reshape2" ,r-reshape2)
        ("r-rlang" ,r-rlang)
        ("r-scales" ,r-scales)
        ("r-svglite" ,r-svglite) ; Needed for 'ggsave'
-       ("r-viridislite" ,r-viridislite)
        ("r-withr" ,r-withr)))
     (home-page "https://ggplot2.tidyverse.org")
     (synopsis "An implementation of the grammar of graphics")
@@ -1651,13 +1650,13 @@ and printing capabilities than traditional data frames.")
 (define-public r-dplyr
   (package
     (name "r-dplyr")
-    (version "0.8.4")
+    (version "0.8.5")
     (source (origin
               (method url-fetch)
               (uri (cran-uri "dplyr" version))
               (sha256
                (base32
-                "1nd0mmvqjbzbknawa520f64p9zlj9lwdlq0hh7c1mciyy7ah6641"))))
+                "0602b4a9nffxx67q57csqp87nkrv33nn9wlaw1458yys9fzx6l2p"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-assertthat" ,r-assertthat)
@@ -1672,6 +1671,8 @@ and printing capabilities than traditional data frames.")
        ("r-rlang" ,r-rlang)
        ("r-tibble" ,r-tibble)
        ("r-tidyselect" ,r-tidyselect)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr)))
     (home-page "https://github.com/hadley/dplyr")
     (synopsis "Tools for working with data frames in R")
     (description
@@ -1879,14 +1880,14 @@ building design matrices.")
 (define-public python-statsmodels
   (package
     (name "python-statsmodels")
-    (version "0.9.0")
+    (version "0.11.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "statsmodels" version))
        (sha256
         (base32
-         "0fxs8a7sp4d7jvqlm36yi45i2d28kjfvraf9q8i9jr1chhxgjqb4"))))
+         "1w6mf8b86vizi2895j11szqryr2v1ckjig3wp9fv94aslfh3zpjv"))))
     (build-system python-build-system)
     (arguments
      `(;; The test suite is very large and rather brittle.  Tests often fail
@@ -3608,6 +3609,8 @@ memory usage.")
      `(("r-ggplot2" ,r-ggplot2)
        ("r-gridextra" ,r-gridextra)
        ("r-viridislite" ,r-viridislite)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr))) ; for vignettes
     (home-page "https://github.com/sjmgarnier/viridis")
     (synopsis "Matplotlib default color map")
     (description
@@ -4638,14 +4641,14 @@ original public code has been corrected.")
 (define-public r-modeltools
   (package
     (name "r-modeltools")
-    (version "0.2-22")
+    (version "0.2-23")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "modeltools" version))
        (sha256
         (base32
-         "1s9lmkac3rl0nknf4wizfhg7ryq7c8yvvyc4z619238br27hhsi5"))))
+         "1vqh69256h344sbj5affm0kmc77dakrxp6442xfdnfd0y5d8sgkb"))))
     (build-system r-build-system)
     (home-page "https://cran.r-project.org/web/packages/modeltools")
     (synopsis "Tools and classes for statistical models")
@@ -4853,14 +4856,14 @@ generally.")
 (define-public r-robust
   (package
     (name "r-robust")
-    (version "0.4-18.2")
+    (version "0.5-0.0")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "robust" version))
        (sha256
         (base32
-         "02x7d6dgx3skiadvx5m3c44b4bhz37ycpfhc25dhhv50y1db6l3k"))))
+         "1ks5scp8bnicl9j1r8yrmz668fjs6ifdmi540zw6d2ck500bbw42"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-fit-models" ,r-fit-models)
diff --git a/gnu/packages/terminals.scm b/gnu/packages/terminals.scm
index 482e9e8d1b..83eed3e036 100644
--- a/gnu/packages/terminals.scm
+++ b/gnu/packages/terminals.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2016 Mckinley Olsen <mck.olsen@gmail.com>
 ;;; Copyright © 2016, 2017, 2019 Alex Griffin <a@ajgrf.com>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
-;;; Copyright © 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2017, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016, 2017 José Miguel Sánchez García <jmi2k@openmailbox.org>
 ;;; Copyright © 2017, 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Kei Kebreau <kkebreau@posteo.net>
@@ -407,7 +407,7 @@ to all types of devices that provide serial consoles.")
 (define-public beep
   (package
     (name "beep")
-    (version "1.4.7")
+    (version "1.4.9")
     (source
      (origin
        (method git-fetch)
@@ -420,7 +420,7 @@ to all types of devices that provide serial consoles.")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "0dnbvzzxvajc7pl1165wb3l74pfcqcdg12rcjcw86qqy954dx8my"))))
+        (base32 "0jmvqk6g5n0wzj9znw42njxq3mzw1769f4db99b83927hf4aidi4"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f                      ; no tests
@@ -430,8 +430,6 @@ to all types of devices that provide serial consoles.")
        #:phases
        (modify-phases %standard-phases
          (delete 'configure))))         ; no configure script
-    (native-inputs
-     `(("gcc" ,gcc-8)))                 ; for ‘-fstack-clash-protection’
     (synopsis "Linux command-line utility to control the PC speaker")
     (description "beep allows the user to control the PC speaker with precision,
 allowing different sounds to indicate different events.  While it can be run
diff --git a/gnu/packages/toys.scm b/gnu/packages/toys.scm
index fd86aec6ef..7f22646d8c 100644
--- a/gnu/packages/toys.scm
+++ b/gnu/packages/toys.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2019 Jesse Gibbons <jgibbons2357+guix@gmail.com>
 ;;; Copyright © 2019 Timotej Lazar <timotej.lazar@araneo.si>
+;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -200,3 +201,38 @@ The GNU project hosts a similar collection of filters, the GNU talkfilters.")
 the desktop background.  Additional customizable effects include wind, stars
 and various scenery elements.")
     (license license:gpl3+)))
+
+(define-public nyancat
+  (package
+    (name "nyancat")
+    (version "1.5.2")
+    (source
+      (origin
+        (method git-fetch)
+        (uri (git-reference
+               (url "https://github.com/klange/nyancat")
+               (commit version)))
+        (file-name (git-file-name name version))
+        (sha256
+         (base32
+          "1mg8nm5xzcq1xr8cvx24ym2vmafkw53rijllwcdm9miiz0p5ky9k"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:make-flags '("CC=gcc")
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure) ; no configure script
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (bin (string-append out "/bin"))
+                    (man (string-append out "/share/man/man1")))
+               (install-file "src/nyancat" bin)
+               (install-file "nyancat.1" man))
+             #t)))))
+    (home-page "https://nyancat.dakko.us/")
+    (synopsis "Nyan cat telnet server")
+    (description
+     "This is an animated, color, ANSI-text telnet server that renders a loop
+of the Nyan Cat / Poptart Cat animation.")
+    (license license:ncsa)))
diff --git a/gnu/packages/unicode.scm b/gnu/packages/unicode.scm
index d6fe93c2e0..2ecfebd379 100644
--- a/gnu/packages/unicode.scm
+++ b/gnu/packages/unicode.scm
@@ -133,7 +133,7 @@ of locale data, including among others
 @itemize
 @item patterns for formatting and parsing,
 @item name translations,
-@item and various informations on languages, scripts and country-specific
+@item and various information on languages, scripts and country-specific
   conventions.
 @end itemize\n")
     (license unicode)))
diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index 514dfe7ab7..74f26c03f9 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -1320,14 +1320,14 @@ control to Git repositories.")
 (define-public mercurial
   (package
     (name "mercurial")
-    (version "5.2.1")
+    (version "5.3.1")
     (source (origin
              (method url-fetch)
              (uri (string-append "https://www.mercurial-scm.org/"
                                  "release/mercurial-" version ".tar.gz"))
              (sha256
               (base32
-               "1pxkd37b0a1mi2zakk1hi122lgz1ffy2fxdnbs8acwlqpw55bc8q"))))
+               "1nbjpzjrzgql4hrvslpxwbcgn885ikq6ba1yb4w6p78rw9nzkhgp"))))
     (build-system python-build-system)
     (arguments
      `(#:phases
@@ -1369,7 +1369,8 @@ control to Git repositories.")
     ;; The following inputs are only needed to run the tests.
     (native-inputs
      `(("python-nose" ,python-nose)
-       ("unzip" ,unzip)))
+       ("unzip" ,unzip)
+       ("which" ,which)))
     (home-page "https://www.mercurial-scm.org/")
     (synopsis "Decentralized version control system")
     (description
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 6719e1e047..c54b5ec64c 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -1548,7 +1548,7 @@ To load this plugin, specify the following option when starting mpv:
 (define-public youtube-dl
   (package
     (name "youtube-dl")
-    (version "2020.02.16")
+    (version "2020.03.08")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/ytdl-org/youtube-dl/"
@@ -1556,7 +1556,7 @@ To load this plugin, specify the following option when starting mpv:
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1ip0p7gifwmkls8ppfvz89j1lh82dg60zmvabj8njnhj170ikkdb"))))
+                "1xbka14wnalcqkhibfcqw8f5bw1m9b1f44719yifv1jk0614q4bn"))))
     (build-system python-build-system)
     (arguments
      ;; The problem here is that the directory for the man page and completion
diff --git a/gnu/packages/vim.scm b/gnu/packages/vim.scm
index b468347380..5b03124e38 100644
--- a/gnu/packages/vim.scm
+++ b/gnu/packages/vim.scm
@@ -847,3 +847,28 @@ through its msgpack-rpc API.")
     (synopsis "Guix integration in Vim")
     (description "This package provides support for GNU Guix in Vim.")
     (license license:vim)))
+
+(define-public vim-asyncrun
+  (package
+    (name "vim-asyncrun")
+    (version "2.6.5")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                     (url "https://github.com/skywind3000/asyncrun.vim")
+                     (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1n0yzv8psskhx8h4g7dz64h2llm9mnljhvl4hrnsjx6znkni8vwp"))))
+    (build-system copy-build-system)
+    (arguments
+     '(#:install-plan
+       '(("plugin" "share/vim/vimfiles/")
+         ("doc/" "share/vim/vimfiles/doc" #:include ("asyncrun.txt")))))
+    (home-page "https://github.com/skywind3000/asyncrun.vim")
+    (synopsis "Run Async Shell Commands in Vim")
+    (description "This plugin takes the advantage of new APIs in Vim 8 (and
+NeoVim) to enable you to run shell commands in background and read output in the
+quickfix window in realtime.")
+    (license license:expat)))
diff --git a/gnu/packages/virtualization.scm b/gnu/packages/virtualization.scm
index b8d85e03a4..03f0ceaeee 100644
--- a/gnu/packages/virtualization.scm
+++ b/gnu/packages/virtualization.scm
@@ -122,6 +122,7 @@
              (patches (search-patches "qemu-CVE-2020-1711.patch"
                                       "qemu-CVE-2020-7039.patch"
                                       "qemu-CVE-2020-7211.patch"
+                                      "qemu-CVE-2020-8608.patch"
                                       "qemu-fix-documentation-build-failure.patch"))
              (sha256
               (base32
@@ -530,14 +531,14 @@ to integrate other virtualization mechanisms if needed.")
 (define-public libvirt-glib
   (package
     (name "libvirt-glib")
-    (version "2.0.0")
+    (version "3.0.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "ftp://libvirt.org/libvirt/glib/"
                                   "libvirt-glib-" version ".tar.gz"))
               (sha256
                (base32
-                "0six9ckmvlwwyavyjkgc262qkpvfqgi8rjij7cyk00bmqq8c9s4l"))))
+                "1zpbv4ninc57c9rw4zmmkvvqn7154iv1qfr20kyxn8xplalqrzvz"))))
     (build-system gnu-build-system)
     (inputs
      `(("openssl" ,openssl)
diff --git a/gnu/packages/web-browsers.scm b/gnu/packages/web-browsers.scm
index c68c91170b..8a6ffaeef1 100644
--- a/gnu/packages/web-browsers.scm
+++ b/gnu/packages/web-browsers.scm
@@ -575,7 +575,17 @@ key-bindings and is fully configurable and extensible in Common Lisp.")
                             (format #t "~a" ,(package-version next-gtk-webkit))))
                         (invoke "make" "install-assets"
                                 (string-append "PREFIX="
-                                               (assoc-ref outputs "out"))))))))
+                                               (assoc-ref outputs "out")))))
+                    (add-after 'unpack 'fix-lambda-list
+                      ;; Starting from SBCL 2.0.2, Next 1.5.0 won't build
+                      ;; because of a weird lambda list type.
+                      (lambda _
+                        (substitute* "source/keymap.lisp"
+                          (("^\\(declaim .* define-key\\)\\)") ""))
+                        (substitute* "source/search-buffer.lisp"
+                          (("define-key :keymap keymap \"C-s\"") "define-key \"C-s\"")
+                          (("\\(update-selection-highlight-hint :follow t :scroll t\\)\\)\\)")
+                           "(update-selection-highlight-hint :follow t :scroll t)) :keymap keymap)")))))))
       (inputs
        `(("alexandria" ,sbcl-alexandria)
          ("bordeaux-threads" ,sbcl-bordeaux-threads)
diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
index e34c20a3ab..e2e314aac9 100644
--- a/gnu/packages/web.scm
+++ b/gnu/packages/web.scm
@@ -1954,15 +1954,14 @@ instance of a component on each request.")
 (define-public perl-catalyst-devel
   (package
     (name "perl-catalyst-devel")
-    (version "1.39")
+    (version "1.40")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "mirror://cpan/authors/id/I/IL/ILMARI/"
+       (uri (string-append "mirror://cpan/authors/id/J/JJ/JJNAPIORK/"
                            "Catalyst-Devel-" version ".tar.gz"))
        (sha256
-        (base32
-         "12m50bbkggjmpxihv3wnvr0g2qng0zwhlzi5ygppjz8wh2x73qxw"))))
+        (base32 "1fqnw6cizpxnfr87rpid8w1wpi1p1lxg6imfjpixqn7s055hcpwc"))))
     (build-system perl-build-system)
     (native-inputs
      `(("perl-test-fatal" ,perl-test-fatal)))
@@ -4392,8 +4391,8 @@ CDF, Atom 0.3, and Atom 1.0 feeds.")
   (package-with-python2 python-feedparser))
 
 (define-public guix-data-service
-  (let ((commit "bf25a8db0278b49ef2149c69ef5d6dd2201fd413")
-        (revision "17"))
+  (let ((commit "18eb9dfdcb3174bfd4bab5b9089acffa13aa1214")
+        (revision "18"))
     (package
       (name "guix-data-service")
       (version (string-append "0.0.1-" revision "." (string-take commit 7)))
@@ -4405,7 +4404,7 @@ CDF, Atom 0.3, and Atom 1.0 feeds.")
                 (file-name (git-file-name name version))
                 (sha256
                  (base32
-                  "0s6faybczdn10zwrkn22nfq5lvf538513hbmjfaqlkhfmwc4s1qd"))))
+                  "0lb78cqzqaz0r4sspg272w2a3yhzhqah30j0kxf0z182b0qpmp37"))))
       (build-system gnu-build-system)
       (arguments
        '(#:modules ((guix build utils)
@@ -4454,15 +4453,15 @@ CDF, Atom 0.3, and Atom 1.0 feeds.")
                  #t)))
            (delete 'strip))))           ; As the .go files aren't compatible
       (inputs
-       `(("guix" ,guix)
-         ("guile-fibers" ,guile-fibers)
-         ("guile-json" ,guile-json-3)
-         ("guile-email" ,guile-email)
-         ("guile-squee" ,guile-squee)
+       `(("guix" ,guile3.0-guix)
+         ("guile-fibers" ,guile3.0-fibers)
+         ("guile-json" ,guile3.0-json)
+         ("guile-email" ,guile3.0-email)
+         ("guile-squee" ,guile3.0-squee)
          ("postgresql" ,postgresql)
          ("sqitch" ,sqitch)))
       (native-inputs
-       `(("guile" ,guile-2.2)
+       `(("guile" ,guile-3.0)
          ("autoconf" ,autoconf)
          ("automake" ,automake)
          ("ephemeralpg" ,ephemeralpg)
@@ -4606,7 +4605,7 @@ It uses the uwsgi protocol for all the networking/interprocess communications.")
        ;;("bundler" ,bundler)
        ("valgrind" ,valgrind)))
     (build-system gnu-build-system)
-    (home-page "http://stedolan.github.io/jq/")
+    (home-page "https://stedolan.github.io/jq/")
     (synopsis "Command-line JSON processor")
     (description "jq is like sed for JSON data – you can use it to slice and
 filter and map and transform structured data with the same ease that sed, awk,
diff --git a/gnu/packages/xfce.scm b/gnu/packages/xfce.scm
index fe5f2e6a0e..0650235365 100644
--- a/gnu/packages/xfce.scm
+++ b/gnu/packages/xfce.scm
@@ -385,15 +385,15 @@ applications menu, workspace switcher and more.")
 (define-public xfce4-clipman-plugin
   (package
     (name "xfce4-clipman-plugin")
-    (version "1.4.3")
+    (version "1.4.4")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://archive.xfce.org/src/panel-plugins/"
-                                  name "/" (version-major+minor version) "/"
-                                  name "-" version ".tar.bz2"))
+                                  "xfce4-clipman-plugin/" (version-major+minor version) "/"
+                                  "xfce4-clipman-plugin-" version ".tar.bz2"))
               (sha256
                (base32
-                "1liacff4wl5mpyf9dzdrfbwxzmhl95y5nsfc0jf5rgalzdgbik99"))))
+                "1819kjn7gs30zhhj2ppfw4zjpcgj9amw1vvppjsavsff1xflrq88"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("intltool" ,intltool)
@@ -880,15 +880,15 @@ system resources, while still being visually appealing and user friendly.")
 (define-public xfce4-power-manager
   (package
     (name "xfce4-power-manager")
-    (version "1.6.5")
+    (version "1.7.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://archive.xfce.org/src/xfce/"
-                                  name "/" (version-major+minor version) "/"
-                                  name "-" version ".tar.bz2"))
+                                  "xfce4-power-manager/" (version-major+minor version) "/"
+                                  "xfce4-power-manager-" version ".tar.bz2"))
               (sha256
                (base32
-                "0x3s2bdwfhp65dz5yn3k43j99ywqlsvrpz3pqmgwm0dik5wbdb8h"))))
+                "0jqjwy341dxyijjm9k77a12iih6b5r3f4cmpr2lppa7mf37qqdj5"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)
@@ -1047,7 +1047,7 @@ sending standard messages over D-Bus using the
 (define-public xfburn
   (package
     (name "xfburn")
-    (version "0.6.1")
+    (version "0.6.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://archive.xfce.org/src/apps/xfburn/"
@@ -1055,7 +1055,7 @@ sending standard messages over D-Bus using the
                                   "xfburn-" version ".tar.bz2"))
               (sha256
                (base32
-                "0ydka5lf9n614gb5xc9bn9297nilgmkfqlb7q1y2yrc97882nxxk"))))
+                "09q3s2rkpf0ljzq6bv4hl9byvaggjq7lchfw5zaircwv5q9nwhc3"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("intltool" ,intltool)
@@ -1971,7 +1971,7 @@ lan interface (signal state, signal quality, network name (SSID)).")
 (define-public xfce4-weather-plugin
   (package
    (name "xfce4-weather-plugin")
-   (version "0.10.0")
+   (version "0.10.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://archive.xfce.org/src/panel-plugins/"
@@ -1980,7 +1980,7 @@ lan interface (signal state, signal quality, network name (SSID)).")
                                   "/xfce4-weather-plugin-" version ".tar.bz2"))
               (sha256
                (base32
-                "0wlm80panxyn86l9qm3mbliqj7gkf2zyzak3w041zz9hg31a08s4"))))
+                "12bs2rfmmy021087i10vxibdbbvd5vld0vk3h5hymhpz7rgszcmg"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("intltool" ,intltool)
diff --git a/gnu/packages/xml.scm b/gnu/packages/xml.scm
index 704839e5f3..76fb3ea072 100644
--- a/gnu/packages/xml.scm
+++ b/gnu/packages/xml.scm
@@ -1311,7 +1311,7 @@ spreadsheet.")
            '(#:configure-flags '("--disable-sse2")))))
     (native-inputs
      `(("perl" ,perl)))
-    (home-page "http://xerces.apache.org/xerces-c/")
+    (home-page "https://xerces.apache.org/xerces-c/")
     (synopsis "Validating XML parser library for C++")
     (description "Xerces-C++ is a validating XML parser written in a portable
 subset of C++.  Xerces-C++ makes it easy to give your application the ability
diff --git a/gnu/services/base.scm b/gnu/services/base.scm
index 706b3ae7ec..669a03b041 100644
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015, 2016 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2015, 2016 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
@@ -1918,7 +1918,7 @@ archive}).  If that is not the case, the service will fail to start."
   udev-configuration make-udev-configuration
   udev-configuration?
   (udev   udev-configuration-udev                 ;<package>
-          (default eudev))
+          (default eudev/btrfs-fix))
   (rules  udev-configuration-rules                ;list of <package>
           (default '())))
 
@@ -2116,7 +2116,7 @@ the udev rules in use.")
 directory dynamically.  Get extra rules from the packages listed in the
 @code{rules} field of its value, @code{udev-configuration} object.")))
 
-(define* (udev-service #:key (udev eudev) (rules '()))
+(define* (udev-service #:key (udev eudev/btrfs-fix) (rules '()))
   "Run @var{udev}, which populates the @file{/dev} directory dynamically.  Get
 extra rules from the packages listed in @var{rules}."
   (service udev-service-type
diff --git a/gnu/services/certbot.scm b/gnu/services/certbot.scm
index 0d3be03383..3e005918d6 100644
--- a/gnu/services/certbot.scm
+++ b/gnu/services/certbot.scm
@@ -3,6 +3,8 @@
 ;;; Copyright © 2016 Sou Bunnbu <iyzsong@member.fsf.org>
 ;;; Copyright © 2017, 2018 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
+;;; Copyright © 2020 Jack Hill <jackhill@jackhill.us>
+;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -70,6 +72,8 @@
   (certificates        certbot-configuration-certificates
                        (default '()))
   (email               certbot-configuration-email)
+  (server              certbot-configuration-server
+                       (default #f))
   (rsa-key-size        certbot-configuration-rsa-key-size
                        (default #f))
   (default-location    certbot-configuration-default-location
@@ -82,7 +86,7 @@
 (define certbot-command
   (match-lambda
     (($ <certbot-configuration> package webroot certificates email
-                                rsa-key-size default-location)
+                                server rsa-key-size default-location)
      (let* ((certbot (file-append package "/bin/certbot"))
             (rsa-key-size (and rsa-key-size (number->string rsa-key-size)))
             (commands
@@ -101,6 +105,7 @@
                             "--cert-name" name
                             "--manual-public-ip-logging-ok"
                             "-d" (string-join domains ","))
+                      (if server `("--server" ,server) '())
                       (if rsa-key-size `("--rsa-key-size" ,rsa-key-size) '())
                       (if authentication-hook
                           `("--manual-auth-hook" ,authentication-hook)
@@ -113,6 +118,7 @@
                             "--webroot" "-w" webroot
                             "--cert-name" name
                             "-d" (string-join domains ","))
+                      (if server `("--server" ,server) '())
                       (if rsa-key-size `("--rsa-key-size" ,rsa-key-size) '())
                       (if deploy-hook `("--deploy-hook" ,deploy-hook) '()))))))
               certificates)))
@@ -142,7 +148,7 @@
          (message (format #f (G_ "~a may need to be run~%") script)))
     (match config
       (($ <certbot-configuration> package webroot certificates email
-                                  rsa-key-size default-location)
+                                  server rsa-key-size default-location)
        (with-imported-modules '((guix build utils))
          #~(begin
              (use-modules (guix build utils))
@@ -154,7 +160,7 @@
 (define certbot-nginx-server-configurations
   (match-lambda
     (($ <certbot-configuration> package webroot certificates email
-                                rsa-key-size default-location)
+                                server rsa-key-size default-location)
      (list
       (nginx-server-configuration
        (listen '("80" "[::]:80"))
diff --git a/gnu/services/cuirass.scm b/gnu/services/cuirass.scm
index 7bfb021161..0f4f0f9948 100644
--- a/gnu/services/cuirass.scm
+++ b/gnu/services/cuirass.scm
@@ -77,7 +77,9 @@
   (one-shot?        cuirass-configuration-one-shot? ;boolean
                     (default #f))
   (fallback?        cuirass-configuration-fallback? ;boolean
-                    (default #f)))
+                    (default #f))
+  (extra-options    cuirass-configuration-extra-options
+                    (default '())))
 
 (define (cuirass-shepherd-service config)
   "Return a <shepherd-service> for the Cuirass service with CONFIG."
@@ -95,7 +97,8 @@
         (specs            (cuirass-configuration-specifications config))
         (use-substitutes? (cuirass-configuration-use-substitutes? config))
         (one-shot?        (cuirass-configuration-one-shot? config))
-        (fallback?        (cuirass-configuration-fallback? config)))
+        (fallback?        (cuirass-configuration-fallback? config))
+        (extra-options    (cuirass-configuration-extra-options config)))
     (list (shepherd-service
            (documentation "Run Cuirass.")
            (provision '(cuirass))
@@ -110,7 +113,8 @@
                            "--interval" #$(number->string interval)
                            #$@(if use-substitutes? '("--use-substitutes") '())
                            #$@(if one-shot? '("--one-shot") '())
-                           #$@(if fallback? '("--fallback") '()))
+                           #$@(if fallback? '("--fallback") '())
+                           #$@extra-options)
 
                      #:environment-variables
                      (list "GIT_SSL_CAINFO=/etc/ssl/certs/ca-certificates.crt"
@@ -137,7 +141,8 @@
                            "--listen" #$host
                            "--interval" #$(number->string interval)
                            #$@(if use-substitutes? '("--use-substitutes") '())
-                           #$@(if fallback? '("--fallback") '()))
+                           #$@(if fallback? '("--fallback") '())
+                           #$@extra-options)
 
                      #:user #$user
                      #:group #$group
diff --git a/gnu/services/guix.scm b/gnu/services/guix.scm
index 0f0fad39b0..10a8581a62 100644
--- a/gnu/services/guix.scm
+++ b/gnu/services/guix.scm
@@ -68,7 +68,12 @@
    (default #f))
   (commits-getmail-retriever-configuration
    guix-data-service-commits-getmail-retriever-configuration
-   (default #f)))
+   (default #f))
+  (extra-options    guix-data-service-extra-options
+                    (default '()))
+  (extra-process-jobs-options
+   guix-data-service-extra-process-jobs-options
+   (default '())))
 
 (define (guix-data-service-profile-packages config)
   "Return the guix-data-service package, this will populate the
@@ -78,7 +83,7 @@ ca-certificates.crt file in the system profile."
 
 (define (guix-data-service-shepherd-services config)
   (match-record config <guix-data-service-configuration>
-    (package user group port host)
+    (package user group port host extra-options extra-process-jobs-options)
     (list
      (shepherd-service
       (documentation "Guix Data Service web server")
@@ -92,7 +97,8 @@ ca-certificates.crt file in the system profile."
                       #$(string-append "--host=" host)
                       ;; Perform any database migrations when the
                       ;; service is started
-                      "--update-database")
+                      "--update-database"
+                      #$@extra-options)
 
                 #:user #$user
                 #:group #$group
@@ -117,7 +123,8 @@ ca-certificates.crt file in the system profile."
       (start #~(make-forkexec-constructor
                 (list
                  #$(file-append package
-                                "/bin/guix-data-service-process-jobs"))
+                                "/bin/guix-data-service-process-jobs")
+                 #$@extra-process-jobs-options)
                 #:user #$user
                 #:group #$group
                 #:environment-variables
diff --git a/gnu/services/nfs.scm b/gnu/services/nfs.scm
index ddc9e2c47e..140a11856a 100644
--- a/gnu/services/nfs.scm
+++ b/gnu/services/nfs.scm
@@ -299,6 +299,7 @@
            (start
             #~(make-forkexec-constructor
                (list #$(file-append nfs-utils "/sbin/rpc.mountd")
+                     "--foreground"
                      #$@(if (member 'mountd debug)
                             '("--debug" "all")
                             '())
diff --git a/gnu/system.scm b/gnu/system.scm
index 2e6d03272d..cfc730a41c 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -100,6 +100,14 @@
             operating-system-user-accounts
             operating-system-shepherd-service-names
             operating-system-user-kernel-arguments
+            operating-system-firmware
+            operating-system-keyboard-layout
+            operating-system-name-service-switch
+            operating-system-pam-services
+            operating-system-setuid-programs
+            operating-system-skeletons
+            operating-system-sudoers-file
+            operating-system-swap-devices
 
             operating-system-derivation
             operating-system-profile
diff --git a/guix/download.scm b/guix/download.scm
index b6b4812fa7..91a2b4ce5f 100644
--- a/guix/download.scm
+++ b/guix/download.scm
@@ -183,7 +183,6 @@
        "http://mirrors.nic.cz/CPAN/"
        "http://mirror.ibcp.fr/pub/CPAN/"
        "http://ftp.ntua.gr/pub/lang/perl/"
-       "http://kvin.lv/pub/CPAN/"
        "http://mirror.as43289.net/pub/CPAN/"
        "http://cpan.cs.uu.nl/"
        "http://cpan.uib.no/"
diff --git a/guix/gexp.scm b/guix/gexp.scm
index c4f4e80209..a657921741 100644
--- a/guix/gexp.scm
+++ b/guix/gexp.scm
@@ -2,7 +2,7 @@
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2018 Jan Nieuwenhuizen <janneke@gnu.org>
-;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2019, 2020 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -218,7 +218,7 @@ procedure to expand it; otherwise return #f."
 
 (define* (lower-object obj
                        #:optional (system (%current-system))
-                       #:key target)
+                       #:key (target 'current))
   "Return as a value in %STORE-MONAD the derivation or store item
 corresponding to OBJ for SYSTEM, cross-compiling for TARGET if TARGET is true.
 OBJ must be an object that has an associated gexp compiler, such as a
@@ -228,7 +228,10 @@ OBJ must be an object that has an associated gexp compiler, such as a
      (raise (condition (&gexp-input-error (input obj)))))
     (lower
      ;; Cache in STORE the result of lowering OBJ.
-     (mlet %store-monad ((graft? (grafting?)))
+     (mlet %store-monad ((target (if (eq? target 'current)
+                                     (current-target-system)
+                                     (return target)))
+                         (graft? (grafting?)))
        (mcached (let ((lower (lookup-compiler obj)))
                   (lower obj system target))
                 obj
@@ -779,7 +782,8 @@ derivations--e.g., code evaluated for its side effects."
                        (extensions -> (gexp-extensions exp))
                        (exts     (mapm %store-monad
                                        (lambda (obj)
-                                         (lower-object obj system))
+                                         (lower-object obj system
+                                                       #:target #f))
                                        extensions))
                        (modules+compiled (imported+compiled-modules
                                           %modules system
@@ -1597,16 +1601,19 @@ are searched for in PATH.  Return #f when MODULES and EXTENSIONS are empty."
                        #:key (guile (default-guile))
                        (module-path %load-path)
                        (system (%current-system))
-                       target)
+                       (target 'current))
   "Return an executable script NAME that runs EXP using GUILE, with EXP's
 imported modules in its search path.  Look up EXP's modules in MODULE-PATH."
-  (mlet %store-monad ((set-load-path
-                       (load-path-expression (gexp-modules exp)
-                                             module-path
-                                             #:extensions
-                                             (gexp-extensions exp)
-                                             #:system system
-                                             #:target target)))
+  (mlet* %store-monad ((target (if (eq? target 'current)
+                                   (current-target-system)
+                                   (return target)))
+                       (set-load-path
+                        (load-path-expression (gexp-modules exp)
+                                              module-path
+                                              #:extensions
+                                              (gexp-extensions exp)
+                                              #:system system
+                                              #:target target)))
     (gexp->derivation name
                       (gexp
                        (call-with-output-file (ungexp output)
@@ -1640,7 +1647,7 @@ imported modules in its search path.  Look up EXP's modules in MODULE-PATH."
                      (module-path %load-path)
                      (splice? #f)
                      (system (%current-system))
-                     target)
+                     (target 'current))
   "Return a derivation that builds a file NAME containing EXP.  When SPLICE?
 is true, EXP is considered to be a list of expressions that will be spliced in
 the resulting file.
@@ -1651,36 +1658,44 @@ Lookup EXP's modules in MODULE-PATH."
   (define modules (gexp-modules exp))
   (define extensions (gexp-extensions exp))
 
-  (if (or (not set-load-path?)
-          (and (null? modules) (null? extensions)))
-      (gexp->derivation name
-                        (gexp
-                         (call-with-output-file (ungexp output)
-                           (lambda (port)
-                             (for-each (lambda (exp)
-                                         (write exp port))
-                                       '(ungexp (if splice?
-                                                    exp
-                                                    (gexp ((ungexp exp)))))))))
-                        #:local-build? #t
-                        #:substitutable? #f
-                        #:system system
-                        #:target target)
-      (mlet %store-monad ((set-load-path
-                           (load-path-expression modules module-path
-                                                 #:extensions extensions
-                                                 #:system system
-                                                 #:target target)))
+  (mlet* %store-monad
+      ((target (if (eq? target 'current)
+                   (current-target-system)
+                   (return target)))
+       (no-load-path? -> (or (not set-load-path?)
+                             (and (null? modules)
+                                  (null? extensions))))
+       (set-load-path
+        (load-path-expression modules module-path
+                              #:extensions extensions
+                              #:system system
+                              #:target target)))
+    (if no-load-path?
+        (gexp->derivation name
+                          (gexp
+                           (call-with-output-file (ungexp output)
+                             (lambda (port)
+                               (for-each
+                                (lambda (exp)
+                                  (write exp port))
+                                '(ungexp (if splice?
+                                             exp
+                                             (gexp ((ungexp exp)))))))))
+                          #:local-build? #t
+                          #:substitutable? #f
+                          #:system system
+                          #:target target)
         (gexp->derivation name
                           (gexp
                            (call-with-output-file (ungexp output)
                              (lambda (port)
                                (write '(ungexp set-load-path) port)
-                               (for-each (lambda (exp)
-                                           (write exp port))
-                                         '(ungexp (if splice?
-                                                      exp
-                                                      (gexp ((ungexp exp)))))))))
+                               (for-each
+                                (lambda (exp)
+                                  (write exp port))
+                                '(ungexp (if splice?
+                                             exp
+                                             (gexp ((ungexp exp)))))))))
                           #:module-path module-path
                           #:local-build? #t
                           #:substitutable? #f
diff --git a/guix/import/cran.scm b/guix/import/cran.scm
index bcb37ed250..bb8226f714 100644
--- a/guix/import/cran.scm
+++ b/guix/import/cran.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015, 2016, 2017, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;;
@@ -385,6 +385,9 @@ reference the pkg-config tool."
       (tarball-needs-pkg-config? thing)
       (directory-needs-pkg-config? thing)))
 
+(define (needs-knitr? meta)
+  (member "knitr" (listify meta "VignetteBuilder")))
+
 ;; XXX adapted from (guix scripts hash)
 (define (file-hash file select? recursive?)
   ;; Compute the hash of FILE.
@@ -486,7 +489,9 @@ from the alist META, which was derived from the R package's DESCRIPTION file."
                  `(,@(if (needs-fortran? source (not git?))
                          '("gfortran") '())
                    ,@(if (needs-pkg-config? source (not git?))
-                         '("pkg-config") '()))
+                         '("pkg-config") '())
+                   ,@(if (needs-knitr? meta)
+                         '("r-knitr") '()))
                  'native-inputs)
               (home-page ,(if (string-null? home-page)
                               (string-append base-url name)
diff --git a/guix/scripts.scm b/guix/scripts.scm
index e235c8d4c3..3e19e38957 100644
--- a/guix/scripts.scm
+++ b/guix/scripts.scm
@@ -237,7 +237,7 @@ THRESHOLDS is a pair (ABSOLUTE-THRESHOLD . RELATIVE-THRESHOLD)."
          (total      (* block-size (file-system-block-count stats)))
          (relative-threshold-in-bytes (* total (cadr thresholds)))
          (absolute-threshold-in-bytes (car thresholds)))
-    (when (< available (max relative-threshold-in-bytes
+    (when (< available (min relative-threshold-in-bytes
                             absolute-threshold-in-bytes))
       (warning (G_ "only ~,1f GiB of free space available on ~a~%")
                (/ available 1. GiB) (%store-prefix))
diff --git a/guix/store.scm b/guix/store.scm
index f99fa581a8..5768a2ba7a 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2018 Jan Nieuwenhuizen <janneke@gnu.org>
-;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2019, 2020 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -161,6 +161,7 @@
             current-system
             set-current-system
             current-target-system
+            set-current-target
             text-file
             interned-file
             interned-file-tree
@@ -1823,6 +1824,11 @@ the store."
   (lambda (state)
     (values (%current-target-system) state)))
 
+(define-inlinable (set-current-target target)
+  ;; Set the %CURRENT-TARGET-SYSTEM fluid at bind time.
+  (lambda (state)
+    (values (%current-target-system target) state)))
+
 (define %guile-for-build
   ;; The derivation of the Guile to be used within the build environment,
   ;; when using 'gexp->derivation' and co.
diff --git a/po/doc/local.mk b/po/doc/local.mk
index 27b9e1f3b5..4f3ad0a37e 100644
--- a/po/doc/local.mk
+++ b/po/doc/local.mk
@@ -24,7 +24,7 @@ DOC_PO_FILES=					\
   %D%/guix-manual.zh_CN.po
 
 DOC_COOKBOOK_PO_FILES=					\
-  %D%/guix-manual.de.po
+  %D%/guix-cookbook.de.po
 
 EXTRA_DIST = \
   %D%/guix-manual.pot \
@@ -58,7 +58,7 @@ doc-po-update-%:
 	fi
 
 doc-po-update-cookbook-%:
-	@lang=`echo "$@" | sed -e's/^doc-po-update-//'` ; \
+	@lang=`echo "$@" | sed -e's/^doc-po-update-cookbook-//'` ; \
 	output="$(srcdir)/po/doc/guix-cookbook.$$lang.po" ; \
 	input="$(srcdir)/po/doc/guix-cookbook.pot" ; \
 	if test -f "$$output"; then \
diff --git a/tests/gexp.scm b/tests/gexp.scm
index 7c8985d846..9e38816c3d 100644
--- a/tests/gexp.scm
+++ b/tests/gexp.scm
@@ -1331,6 +1331,56 @@
   '#~(foo #$bar #$baz:out #$(chbouib 42) #$@(list x y z)
           #+foo #+foo:out #+(chbouib 42) #+@(list x y z)))
 
+(test-assertm "gexp->file, cross-compilation"
+  (mlet* %store-monad ((target -> "aarch64-linux-gnu")
+                       (exp    -> (gexp (list (ungexp coreutils))))
+                       (xdrv      (gexp->file "foo" exp #:target target))
+                       (refs      (references*
+                                   (derivation-file-name xdrv)))
+                       (xcu       (package->cross-derivation coreutils
+                                                             target))
+                       (cu        (package->derivation coreutils)))
+    (return (and (member (derivation-file-name xcu) refs)
+                 (not (member (derivation-file-name cu) refs))))))
+
+(test-assertm "gexp->file, cross-compilation with default target"
+  (mlet* %store-monad ((target -> "aarch64-linux-gnu")
+                       (_         (set-current-target target))
+                       (exp    -> (gexp (list (ungexp coreutils))))
+                       (xdrv      (gexp->file "foo" exp))
+                       (refs      (references*
+                                   (derivation-file-name xdrv)))
+                       (xcu       (package->cross-derivation coreutils
+                                                             target))
+                       (cu        (package->derivation coreutils)))
+    (return (and (member (derivation-file-name xcu) refs)
+                 (not (member (derivation-file-name cu) refs))))))
+
+(test-assertm "gexp->script, cross-compilation"
+  (mlet* %store-monad ((target -> "aarch64-linux-gnu")
+                       (exp    -> (gexp (list (ungexp coreutils))))
+                       (xdrv      (gexp->script "foo" exp #:target target))
+                       (refs      (references*
+                                   (derivation-file-name xdrv)))
+                       (xcu       (package->cross-derivation coreutils
+                                                             target))
+                       (cu        (package->derivation coreutils)))
+    (return (and (member (derivation-file-name xcu) refs)
+                 (not (member (derivation-file-name cu) refs))))))
+
+(test-assertm "gexp->script, cross-compilation with default target"
+  (mlet* %store-monad ((target -> "aarch64-linux-gnu")
+                       (_         (set-current-target target))
+                       (exp    -> (gexp (list (ungexp coreutils))))
+                       (xdrv      (gexp->script "foo" exp))
+                       (refs      (references*
+                                   (derivation-file-name xdrv)))
+                       (xcu       (package->cross-derivation coreutils
+                                                             target))
+                       (cu        (package->derivation coreutils)))
+    (return (and (member (derivation-file-name xcu) refs)
+                 (not (member (derivation-file-name cu) refs))))))
+
 (test-end "gexp")
 
 ;; Local Variables: