diff --git a/pkgs/applications/misc/navi/default.nix b/pkgs/applications/misc/navi/default.nix
index 028b5c686f4d..9b96fea718bf 100644
--- a/pkgs/applications/misc/navi/default.nix
+++ b/pkgs/applications/misc/navi/default.nix
@@ -2,16 +2,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "navi";
-  version = "2.15.0";
+  version = "2.16.0";
 
   src = fetchFromGitHub {
     owner = "denisidoro";
     repo = "navi";
     rev = "v${version}";
-    sha256 = "sha256-qcfSGV/+FkyWGAApekRZHWGmeB9gIURt11DKn7lEh+o=";
+    sha256 = "sha256-ngSZFYGE+Varul/qwavMO3xcMIp8w2WETWXc573wYhQ=";
   };
 
-  cargoSha256 = "sha256-HpGzDZMIzO0lpussmm+kJNOU7zghcYrQWZo3WZ5FOmA=";
+  cargoSha256 = "sha256-qtxFTk0iCxPa4Z7H9+QWSii+iYrLUV2LfiAEbePdhOQ=";
 
   nativeBuildInputs = [ makeWrapper ];
 
diff --git a/pkgs/applications/misc/obsidian/default.nix b/pkgs/applications/misc/obsidian/default.nix
index d7906c7dcbdf..39044301ec7c 100644
--- a/pkgs/applications/misc/obsidian/default.nix
+++ b/pkgs/applications/misc/obsidian/default.nix
@@ -30,17 +30,18 @@ let
 
 in stdenv.mkDerivation rec {
   pname = "obsidian";
-  version = "0.11.13";
+  version = "0.12.3";
 
   src = fetchurl {
-    url =
-      "https://github.com/obsidianmd/obsidian-releases/releases/download/v${version}/obsidian-${version}.tar.gz";
-    sha256 = "0QL1rP37pmdIdGM9eHa7PfW1GVrvn2fX4bQPqQ8FOpI=";
+    url = "https://github.com/obsidianmd/obsidian-releases/releases/download/v${version}/obsidian-${version}.tar.gz";
+    sha256 = "sha256-nwtQp7BkMZwMzfnA5wdcMAhfezM//Lm9cf0pbvnOVZE=";
   };
 
   nativeBuildInputs = [ makeWrapper graphicsmagick ];
 
   installPhase = ''
+    runHook preInstall
+
     mkdir -p $out/bin
 
     makeWrapper ${electron}/bin/electron $out/bin/obsidian \
@@ -56,6 +57,8 @@ in stdenv.mkDerivation rec {
       mkdir -p $out/share/icons/hicolor/"$size"x"$size"/apps
       gm convert -resize "$size"x"$size" ${icon} $out/share/icons/hicolor/"$size"x"$size"/apps/obsidian.png
     done
+
+    runHook postInstall
   '';
 
   passthru.updateScript = updateScript;
diff --git a/pkgs/applications/networking/irc/communi/default.nix b/pkgs/applications/networking/irc/communi/default.nix
index 0d0144fbf915..ab698ea9c560 100644
--- a/pkgs/applications/networking/irc/communi/default.nix
+++ b/pkgs/applications/networking/irc/communi/default.nix
@@ -1,4 +1,4 @@
-{ fetchgit, libcommuni, qtbase, qmake, lib, stdenv }:
+{ fetchgit, libcommuni, qtbase, qmake, lib, stdenv, wrapQtAppsHook }:
 
 stdenv.mkDerivation rec {
   pname = "communi";
@@ -11,7 +11,8 @@ stdenv.mkDerivation rec {
     fetchSubmodules = true;
   };
 
-  nativeBuildInputs = [ qmake ];
+  nativeBuildInputs = [ qmake ]
+    ++ lib.optional stdenv.isDarwin wrapQtAppsHook;
 
   buildInputs = [ libcommuni qtbase ];
 
@@ -25,14 +26,23 @@ stdenv.mkDerivation rec {
 
   qmakeFlags = [
     "COMMUNI_INSTALL_PREFIX=${placeholder "out"}"
-    "COMMUNI_INSTALL_BINS=${placeholder "out"}/bin"
     "COMMUNI_INSTALL_PLUGINS=${placeholder "out"}/lib/communi/plugins"
     "COMMUNI_INSTALL_ICONS=${placeholder "out"}/share/icons/hicolor"
     "COMMUNI_INSTALL_DESKTOP=${placeholder "out"}/share/applications"
     "COMMUNI_INSTALL_THEMES=${placeholder "out"}/share/communi/themes"
+    (if stdenv.isDarwin
+      then [ "COMMUNI_INSTALL_BINS=${placeholder "out"}/Applications" ]
+      else [ "COMMUNI_INSTALL_BINS=${placeholder "out"}/bin" ])
   ];
 
-  postInstall = lib.optionalString stdenv.isLinux ''
+  postInstall = if stdenv.isDarwin then ''
+    # Nix qmake does not add the bundle rpath by default.
+    install_name_tool \
+      -add_rpath @executable_path/../Frameworks \
+      $out/Applications/Communi.app/Contents/MacOS/Communi
+
+    wrapQtApp $out/Applications/Communi.app/Contents/MacOS/Communi
+  '' else ''
     substituteInPlace "$out/share/applications/communi.desktop" \
       --replace "/usr/bin" "$out/bin"
   '';
diff --git a/pkgs/applications/video/gnomecast/default.nix b/pkgs/applications/video/gnomecast/default.nix
index 65865c31dfc8..335b8c191722 100644
--- a/pkgs/applications/video/gnomecast/default.nix
+++ b/pkgs/applications/video/gnomecast/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, python3Packages, gtk3, gobject-introspection, ffmpeg_3, wrapGAppsHook }:
+{ stdenv, lib, python3Packages, gtk3, gobject-introspection, ffmpeg, wrapGAppsHook }:
 
 with python3Packages;
 buildPythonApplication rec {
@@ -21,7 +21,7 @@ buildPythonApplication rec {
   strictDeps = false;
 
   preFixup = ''
-    gappsWrapperArgs+=(--prefix PATH : ${lib.makeBinPath [ ffmpeg_3 ]})
+    gappsWrapperArgs+=(--prefix PATH : ${lib.makeBinPath [ ffmpeg ]})
   '';
 
   # no tests
diff --git a/pkgs/desktops/gnome/games/aisleriot/default.nix b/pkgs/desktops/gnome/games/aisleriot/default.nix
index 8893846698e8..bdd7c9cc1a32 100644
--- a/pkgs/desktops/gnome/games/aisleriot/default.nix
+++ b/pkgs/desktops/gnome/games/aisleriot/default.nix
@@ -1,7 +1,7 @@
 { lib, stdenv
 , fetchFromGitLab
+, nix-update-script
 , pkg-config
-, gnome
 , itstool
 , gtk3
 , wrapGAppsHook
@@ -19,14 +19,14 @@
 
 stdenv.mkDerivation rec {
   pname = "aisleriot";
-  version = "3.22.13";
+  version = "3.22.16";
 
   src = fetchFromGitLab {
     domain = "gitlab.gnome.org";
     owner = "GNOME";
     repo = pname;
     rev = version;
-    sha256 = "05k84bbgrrxchxg08l1jjcz384kpjdmxd24g0wnf731aa9zcnp5k";
+    sha256 = "0arjnm5kgnb4pir53hlm94iym80d0srs256sm2hwhwwc5fr1w79i";
   };
 
   nativeBuildInputs = [
@@ -61,8 +61,7 @@ stdenv.mkDerivation rec {
   ];
 
   passthru = {
-    updateScript = gnome.updateScript {
-      packageName = pname;
+    updateScript = nix-update-script {
       attrPath = "gnome.${pname}";
     };
   };
diff --git a/pkgs/development/compilers/ghdl/default.nix b/pkgs/development/compilers/ghdl/default.nix
index ec07331dc52b..e7886eb8f5ed 100644
--- a/pkgs/development/compilers/ghdl/default.nix
+++ b/pkgs/development/compilers/ghdl/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   '';
 
   configureFlags = [ "--enable-synth" ] ++ lib.optional (backend == "llvm")
-    "--with-llvm-config=${llvm}/bin/llvm-config";
+    "--with-llvm-config=${llvm.dev}/bin/llvm-config";
 
   hardeningDisable = [ "format" ];
 
diff --git a/pkgs/development/libraries/libcommuni/default.nix b/pkgs/development/libraries/libcommuni/default.nix
index 532c91a0edab..3e2c0daf0b46 100644
--- a/pkgs/development/libraries/libcommuni/default.nix
+++ b/pkgs/development/libraries/libcommuni/default.nix
@@ -19,7 +19,9 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   dontUseQmakeConfigure = true;
-  configureFlags = [ "-config" "release" ];
+  configureFlags = [ "-config" "release" ]
+    # Build mixes up dylibs/frameworks if one is not explicitely specified.
+    ++ lib.optionals stdenv.isDarwin [ "-config" "qt_framework" ];
 
   dontWrapQtApps = true;
 
diff --git a/pkgs/development/libraries/libxmlb/default.nix b/pkgs/development/libraries/libxmlb/default.nix
index 161833a928cd..b476edaf5e60 100644
--- a/pkgs/development/libraries/libxmlb/default.nix
+++ b/pkgs/development/libraries/libxmlb/default.nix
@@ -15,7 +15,7 @@
 
 stdenv.mkDerivation rec {
   pname = "libxmlb";
-  version = "0.3.0";
+  version = "0.3.1";
 
   outputs = [ "out" "lib" "dev" "devdoc" "installedTests" ];
 
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
     owner = "hughsie";
     repo = "libxmlb";
     rev = version;
-    sha256 = "sha256-prHsigfjifwiuBSUHaCWhjJIaw1LkOGHJu20cdPgH9c=";
+    sha256 = "sha256-4gJBmSbo5uGj12Y2Ov4gmS8nJshQxuBM9BAevY/lwjg=";
   };
 
   patches = [
diff --git a/pkgs/development/libraries/mapnik/default.nix b/pkgs/development/libraries/mapnik/default.nix
index d4f11c1d126a..45d5e0a40eb0 100644
--- a/pkgs/development/libraries/mapnik/default.nix
+++ b/pkgs/development/libraries/mapnik/default.nix
@@ -23,18 +23,42 @@ stdenv.mkDerivation rec {
 
   buildInputs =
     [ boost cairo freetype gdal harfbuzz icu libjpeg libpng libtiff
-      libwebp libxml2 proj python sqlite zlib
+      libwebp proj python sqlite zlib
 
       # optional inputs
       postgresql
     ];
 
+  propagatedBuildInputs = [ libxml2 ];
+
   prefixKey = "PREFIX=";
 
   preConfigure = ''
     patchShebangs ./configure
   '';
 
+  # NOTE: 2021-05-06:
+  # Add -DACCEPT_USE_OF_DEPRECATED_PROJ_API_H=1 for backwards compatibility
+  # with major versions 6 and 7 of proj which are otherwise not compatible
+  # with mapnik 3.1.0. Note that:
+  #
+  # 1. Starting with proj version 8, this workaround will no longer be
+  #    supported by the upstream proj project.
+  #
+  # 2. Without the workaround, mapnik configures itself without proj support.
+  #
+  # 3. The master branch of mapnik (after 3.1.0) appears to add native support
+  #    for the proj 6 api, so this workaround is not likely to be needed in
+  #    subsequent mapnik releases. At that point, this block comment and the
+  #    NIX_CFLAGS_COMPILE expression can be removed.
+
+  NIX_CFLAGS_COMPILE =
+    if version != "3.1.0" && lib.versionAtLeast version "3.1.0"
+    then throw "The mapnik compatibility workaround for proj 6 may no longer be required. Remove workaround after checking."
+    else if lib.versionAtLeast (lib.getVersion proj) "8"
+    then throw ("mapnik currently requires a version of proj less than 8, but proj version is: " + (lib.getVersion proj))
+    else "-DACCEPT_USE_OF_DEPRECATED_PROJ_API_H=1";
+
   configureFlags = [
     "BOOST_INCLUDES=${boost.dev}/include"
     "BOOST_LIBS=${boost.out}/lib"
@@ -51,16 +75,19 @@ stdenv.mkDerivation rec {
     "JPEG_LIBS=${libjpeg.out}/lib"
     "PNG_INCLUDES=${libpng.dev}/include"
     "PNG_LIBS=${libpng.out}/lib"
-    "PROJ_INCLUDES=${proj}/include"
-    "PROJ_LIBS=${proj}/lib"
+    "PROJ_INCLUDES=${proj.dev}/include"
+    "PROJ_LIBS=${proj.out}/lib"
     "SQLITE_INCLUDES=${sqlite.dev}/include"
     "SQLITE_LIBS=${sqlite.out}/lib"
     "TIFF_INCLUDES=${libtiff.dev}/include"
     "TIFF_LIBS=${libtiff.out}/lib"
     "WEBP_INCLUDES=${libwebp}/include"
     "WEBP_LIBS=${libwebp}/lib"
-    "XML2_INCLUDES=${libxml2.dev}/include"
-    "XML2_LIBS=${libxml2.out}/lib"
+    "XMLPARSER=libxml2"
+  ];
+
+  buildFlags = [
+    "JOBS=$(NIX_BUILD_CORES)"
   ];
 
   meta = with lib; {
diff --git a/pkgs/development/libraries/md4c/default.nix b/pkgs/development/libraries/md4c/default.nix
index a711ecb7c768..a29b521a2de5 100644
--- a/pkgs/development/libraries/md4c/default.nix
+++ b/pkgs/development/libraries/md4c/default.nix
@@ -7,13 +7,13 @@
 
 stdenv.mkDerivation rec {
   pname = "md4c";
-  version = "0.4.7";
+  version = "0.4.8";
 
   src = fetchFromGitHub {
     owner = "mity";
     repo = pname;
     rev = "release-${version}";
-    hash = "sha256-nfMXUP1wu3ifn1QVTO/+XcfFRsThG8PlmYRv+b8AYlQ=";
+    hash = "sha256-+LObAD5JB8Vb4Rt4hTo1Z4ispxzfFkkXA2sw6TKB7Yo=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/libraries/webkitgtk/default.nix b/pkgs/development/libraries/webkitgtk/default.nix
index f4b716ee6d4e..f37ba500a227 100644
--- a/pkgs/development/libraries/webkitgtk/default.nix
+++ b/pkgs/development/libraries/webkitgtk/default.nix
@@ -53,13 +53,14 @@
 , xdg-dbus-proxy
 , substituteAll
 , glib
+, addOpenGLRunpath
 }:
 
 assert enableGeoLocation -> geoclue2 != null;
 
 stdenv.mkDerivation rec {
   pname = "webkitgtk";
-  version = "2.32.0";
+  version = "2.32.1";
 
   outputs = [ "out" "dev" ];
 
@@ -67,13 +68,14 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "https://webkitgtk.org/releases/${pname}-${version}.tar.xz";
-    sha256 = "1w3b0w8izp0i070grhv19j631sdcd0mcqnjnax13k8mdx7dg8zcx";
+    sha256 = "05v9hgpkc6mi2klrd8nqql1n8xzq8rgdz3hvyy369xkhgwqifq8k";
   };
 
   patches = lib.optionals stdenv.isLinux [
     (substituteAll {
       src = ./fix-bubblewrap-paths.patch;
       inherit (builtins) storeDir;
+      inherit (addOpenGLRunpath) driverLink;
     })
     ./libglvnd-headers.patch
   ];
diff --git a/pkgs/development/libraries/webkitgtk/fix-bubblewrap-paths.patch b/pkgs/development/libraries/webkitgtk/fix-bubblewrap-paths.patch
index 03a6b6903a8a..d502958f4f1a 100644
--- a/pkgs/development/libraries/webkitgtk/fix-bubblewrap-paths.patch
+++ b/pkgs/development/libraries/webkitgtk/fix-bubblewrap-paths.patch
@@ -1,16 +1,7 @@
 diff -ru old/webkitgtk-2.26.0/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp webkitgtk-2.26.0/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
 --- old/webkitgtk-2.26.0/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp	2019-09-09 04:47:07.000000000 -0400
 +++ webkitgtk-2.26.0/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp	2019-09-20 21:14:10.537921173 -0400
-@@ -585,7 +585,7 @@
-         { SCMP_SYS(keyctl), nullptr },
-         { SCMP_SYS(request_key), nullptr },
- 
--        // Scary VM/NUMA ops 
-+        // Scary VM/NUMA ops
-         { SCMP_SYS(move_pages), nullptr },
-         { SCMP_SYS(mbind), nullptr },
-         { SCMP_SYS(get_mempolicy), nullptr },
-@@ -724,6 +724,11 @@
+@@ -724,6 +724,12 @@
          "--ro-bind-try", "/usr/local/lib64", "/usr/local/lib64",
  
          "--ro-bind-try", PKGLIBEXECDIR, PKGLIBEXECDIR,
@@ -18,7 +9,8 @@ diff -ru old/webkitgtk-2.26.0/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLa
 +        // Nix Directories
 +        "--ro-bind", "@storeDir@", "@storeDir@",
 +        "--ro-bind", "/run/current-system", "/run/current-system",
-+        "--ro-bind", "/run/opengl-driver", "/run/opengl-driver",
++        "--ro-bind-try", "@driverLink@/lib", "@driverLink@/lib",
++        "--ro-bind-try", "@driverLink@/share", "@driverLink@/share",
      };
      // We would have to parse ld config files for more info.
      bindPathVar(sandboxArgs, "LD_LIBRARY_PATH");
diff --git a/pkgs/development/php-packages/apcu_bc/default.nix b/pkgs/development/php-packages/apcu_bc/default.nix
index 132a25a2df4c..a9c34a8d778f 100644
--- a/pkgs/development/php-packages/apcu_bc/default.nix
+++ b/pkgs/development/php-packages/apcu_bc/default.nix
@@ -15,4 +15,5 @@ buildPecl {
   '';
 
   meta.maintainers = lib.teams.php.members;
+  meta.broken = lib.versionAtLeast php.version "8";
 }
diff --git a/pkgs/development/python-modules/aioasuswrt/default.nix b/pkgs/development/python-modules/aioasuswrt/default.nix
index edd2796eca48..a6bd79e80ef1 100644
--- a/pkgs/development/python-modules/aioasuswrt/default.nix
+++ b/pkgs/development/python-modules/aioasuswrt/default.nix
@@ -9,18 +9,16 @@
 
 buildPythonPackage rec {
   pname = "aioasuswrt";
-  version = "1.3.3";
+  version = "1.3.4";
 
   src = fetchFromGitHub {
     owner = "kennedyshead";
     repo = pname;
-    rev = "V${version}";
-    sha256 = "1h1qwc7szgrcwiz4q6x4mlf26is20lj1ds5rcb9i611j26656v6d";
+    rev = version;
+    sha256 = "101d76zarvilzfmcy8n3bjqzyars8hsjzr0zc80d4rngv4vhrki1";
   };
 
   postPatch = ''
-    substituteInPlace setup.py \
-      --replace "cryptography==3.3.2" "cryptography"
     substituteInPlace setup.cfg \
       --replace "--cov-report html" "" \
       --replace "--cov-report term-missing" ""
diff --git a/pkgs/development/python-modules/connexion/default.nix b/pkgs/development/python-modules/connexion/default.nix
index 25925f56069a..0429ee7a507a 100644
--- a/pkgs/development/python-modules/connexion/default.nix
+++ b/pkgs/development/python-modules/connexion/default.nix
@@ -1,89 +1,60 @@
-{ buildPythonPackage
-, fetchFromGitHub
-, isPy3k
-, glibcLocales
-, lib
-, pythonOlder
-
+{ lib
 , aiohttp
-, aiohttp-swagger
 , aiohttp-jinja2
+, aiohttp-remotes
+, aiohttp-swagger
+, buildPythonPackage
 , clickclick
 , decorator
-, flake8
+, fetchFromGitHub
 , flask
-, gevent
 , inflection
 , jsonschema
-, mock
 , openapi-spec-validator
-, pathlib
-, pytest
 , pytest-aiohttp
-, pytestcov
+, pytestCheckHook
+, pythonOlder
 , pyyaml
 , requests
-, six
 , swagger-ui-bundle
 , testfixtures
-, typing ? null
-, ujson
 }:
 
 buildPythonPackage rec {
   pname = "connexion";
-  version = "2.4.0";
+  version = "2.7.0";
+  disabled = pythonOlder "3.6";
 
-  # we're fetching from GitHub because tests weren't distributed on PyPi
   src = fetchFromGitHub {
     owner = "zalando";
     repo = pname;
     rev = version;
-    sha256 = "1b9q027wrks0afl7l3a1wxymz3aick26b9fq2m07pc5wb9np0vvg";
+    sha256 = "15iflq5403diwda6n6qrpq67wkdcvl3vs0gsg0fapxqnq3a2m7jj";
   };
 
-  checkInputs = [
-    decorator
-    mock
-    pytest
-    pytestcov
-    testfixtures
-    flask
-    swagger-ui-bundle
-  ]
-  ++ lib.optionals isPy3k [ aiohttp aiohttp-jinja2 aiohttp-swagger ujson pytest-aiohttp ]
-  ++ lib.optional (pythonOlder "3.7") glibcLocales
-  ;
   propagatedBuildInputs = [
+    aiohttp
+    aiohttp-jinja2
+    aiohttp-swagger
     clickclick
+    flask
+    inflection
     jsonschema
+    openapi-spec-validator
     pyyaml
     requests
-    six
-    inflection
-    openapi-spec-validator
     swagger-ui-bundle
-    flask
-  ]
-  ++ lib.optional (pythonOlder "3.4") pathlib
-  ++ lib.optional (pythonOlder "3.6") typing
-  ++ lib.optionals isPy3k [ aiohttp aiohttp-jinja2 aiohttp-swagger ujson ]
-  ;
+  ];
 
-  preConfigure = lib.optional (pythonOlder "3.7") ''
-    export LANG=en_US.UTF-8
-  '';
+  checkInputs = [
+    aiohttp-remotes
+    decorator
+    pytest-aiohttp
+    pytestCheckHook
+    testfixtures
+  ];
 
-  postPatch = ''
-    substituteInPlace setup.py --replace "'aiohttp>=2.3.10,<3.5.2'" "'aiohttp>=2.3.10'"
-  '';
-
-  checkPhase = if isPy3k then ''
-    pytest -k "not test_app_get_root_path and \
-               not test_verify_oauth_scopes_remote and \
-               not test_verify_oauth_scopes_local and \
-               not test_run_with_aiohttp_not_installed"''
-  else "pytest --ignore=tests/aiohttp";
+  pythonImportsCheck = [ "connexion" ];
 
   meta = with lib; {
     description = "Swagger/OpenAPI First framework on top of Flask";
diff --git a/pkgs/development/python-modules/ics/default.nix b/pkgs/development/python-modules/ics/default.nix
index 011909d6b805..ed87f3678b15 100644
--- a/pkgs/development/python-modules/ics/default.nix
+++ b/pkgs/development/python-modules/ics/default.nix
@@ -1,6 +1,11 @@
-{ lib, buildPythonPackage, fetchFromGitHub, pythonOlder
-, tatsu, arrow
-, pytestCheckHook, pytest-flakes
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pythonOlder
+, tatsu
+, arrow
+, pytestCheckHook
+, pytest-flakes
 }:
 
 buildPythonPackage rec {
@@ -9,21 +14,35 @@ buildPythonPackage rec {
   disabled = pythonOlder "3.6";
 
   src = fetchFromGitHub {
-    owner = "C4ptainCrunch";
-    repo = "ics.py";
+    owner = "ics-py";
+    repo = "ics-py";
     rev = "v${version}";
     sha256 = "0rrdc9rcxc3ys6rml81b8m8qdlisk78a34bdib0wy65hlkmyyykn";
   };
 
-  propagatedBuildInputs = [ tatsu arrow ];
+  propagatedBuildInputs = [
+    arrow
+    tatsu
+  ];
+
+  checkInputs = [
+    pytest-flakes
+    pytestCheckHook
+  ];
 
   postPatch = ''
+    # 0.8 will move to python-dateutil
     substituteInPlace requirements.txt \
       --replace "arrow>=0.11,<0.15" "arrow"
     substituteInPlace setup.cfg --replace "--pep8" ""
   '';
 
-  checkInputs = [ pytestCheckHook pytest-flakes ];
+  disabledTests = [
+    # Failure seems to be related to arrow > 1.0
+    "test_event"
+  ];
+
+  pythonImportsCheck = [ "ics" ];
 
   meta = with lib; {
     description = "Pythonic and easy iCalendar library (RFC 5545)";
@@ -32,9 +51,8 @@ buildPythonPackage rec {
       write ics data in a developer friendly way.
     '';
     homepage = "http://icspy.readthedocs.org/en/stable/";
-    changelog = "https://github.com/C4ptainCrunch/ics.py/releases/tag/v${version}";
+    changelog = "https://github.com/ics-py/ics-py/releases/tag/v${version}";
     license = licenses.asl20;
     maintainers = with maintainers; [ primeos ];
   };
-
 }
diff --git a/pkgs/development/python-modules/python-mapnik/default.nix b/pkgs/development/python-modules/python-mapnik/default.nix
index 36c297358e87..b1b0c70d8602 100644
--- a/pkgs/development/python-modules/python-mapnik/default.nix
+++ b/pkgs/development/python-modules/python-mapnik/default.nix
@@ -35,10 +35,16 @@ in buildPythonPackage rec {
     export BOOST_PYTHON_LIB="boost_python${pythonVersion}"
     export BOOST_THREAD_LIB="boost_thread"
     export BOOST_SYSTEM_LIB="boost_system"
+    export PYCAIRO=true
   '';
 
   nativeBuildInputs = [
     mapnik # for mapnik_config
+    pkgs.pkgconfig
+  ];
+
+  patches = [
+    ./find-pycairo-with-pkg-config.patch
   ];
 
   buildInputs = [
diff --git a/pkgs/development/python-modules/python-mapnik/find-pycairo-with-pkg-config.patch b/pkgs/development/python-modules/python-mapnik/find-pycairo-with-pkg-config.patch
new file mode 100644
index 000000000000..1f35af36ee82
--- /dev/null
+++ b/pkgs/development/python-modules/python-mapnik/find-pycairo-with-pkg-config.patch
@@ -0,0 +1,18 @@
+diff --git a/setup.py b/setup.py
+index 82a31d733..1c876a553 100755
+--- a/setup.py
++++ b/setup.py
+@@ -228,10 +228,9 @@ extra_comp_args = list(filter(lambda arg: arg != "-fvisibility=hidden", extra_co
+ if os.environ.get("PYCAIRO", "false") == "true":
+     try:
+         extra_comp_args.append('-DHAVE_PYCAIRO')
+-        print("-I%s/include/pycairo".format(sys.exec_prefix))
+-        extra_comp_args.append("-I{0}/include/pycairo".format(sys.exec_prefix))
+-        #extra_comp_args.extend(check_output(["pkg-config", '--cflags', 'pycairo']).strip().split(' '))
+-        #linkflags.extend(check_output(["pkg-config", '--libs', 'pycairo']).strip().split(' '))
++        pycairo_name = 'py3cairo' if PYTHON3 else 'pycairo'
++        extra_comp_args.extend(check_output(["pkg-config", '--cflags', pycairo_name]).strip().split(' '))
++        linkflags.extend(check_output(["pkg-config", '--libs', pycairo_name]).strip().split(' '))
+     except:
+         raise Exception("Failed to find compiler options for pycairo")
+ 
diff --git a/pkgs/development/python-modules/pytorch/bin.nix b/pkgs/development/python-modules/pytorch/bin.nix
index 1880a0e2bf93..41af9502c0c9 100644
--- a/pkgs/development/python-modules/pytorch/bin.nix
+++ b/pkgs/development/python-modules/pytorch/bin.nix
@@ -18,7 +18,7 @@ let
   pyVerNoDot = builtins.replaceStrings [ "." ] [ "" ] python.pythonVersion;
   srcs = import ./binary-hashes.nix version;
   unsupported = throw "Unsupported system";
-  version = "1.8.0";
+  version = "1.8.1";
 in buildPythonPackage {
   inherit version;
 
@@ -64,6 +64,7 @@ in buildPythonPackage {
   meta = with lib; {
     description = "Open source, prototype-to-production deep learning platform";
     homepage = "https://pytorch.org/";
+    changelog = "https://github.com/pytorch/pytorch/releases/tag/v${version}";
     license = licenses.unfree; # Includes CUDA and Intel MKL.
     platforms = platforms.linux;
     maintainers = with maintainers; [ danieldk ];
diff --git a/pkgs/development/python-modules/pytorch/binary-hashes.nix b/pkgs/development/python-modules/pytorch/binary-hashes.nix
index bc838597038d..3e93eb2f789e 100644
--- a/pkgs/development/python-modules/pytorch/binary-hashes.nix
+++ b/pkgs/development/python-modules/pytorch/binary-hashes.nix
@@ -1,14 +1,17 @@
 version: {
   x86_64-linux-37 = {
-    url = "https://download.pytorch.org/whl/cu102/torch-${version}-cp37-cp37m-linux_x86_64.whl";
-    hash = "sha256-bs29RJS0vy0xok3fvf8yvZlTibyGYqRUvUDT6M4gKQc=";
+    name = "torch-${version}-cp37-cp37m-linux_x86_64.whl";
+    url = "https://download.pytorch.org/whl/cu102/torch-${version}%2Bcu102-cp37-cp37m-linux_x86_64.whl";
+    hash = "sha256-79JK2gGlV5Lhbim7GgPCjk++brwpUQE7g7vsrBu06eE=";
   };
   x86_64-linux-38 = {
-    url = "https://download.pytorch.org/whl/cu102/torch-${version}-cp38-cp38-linux_x86_64.whl";
-    hash = "sha256-+h45HMo5N9Xeox8xoagKAb1KgGLAOUSMJUu/WljrB4c=";
+    name = "torch-${version}-cp38-cp38-linux_x86_64.whl";
+    url = "https://download.pytorch.org/whl/cu102/torch-${version}%2Bcu102-cp38-cp38-linux_x86_64.whl";
+    hash = "sha256-16h90SdxAgFxmPpgUPA3rBGxs9dtFaCeAgeSpKmtnmQ=";
   };
   x86_64-linux-39 = {
-    url = "https://download.pytorch.org/whl/cu102/torch-${version}-cp39-cp39-linux_x86_64.whl";
-    hash = "sha256-Ixj6yGCuc9xkhsDeIiNnTZ72E5/HXxV68r+Nzk/KVSQ=";
+    name = "torch-${version}-cp39-cp39-linux_x86_64.whl";
+    url = "https://download.pytorch.org/whl/cu102/torch-${version}%2Bcu102-cp39-cp39-linux_x86_64.whl";
+    hash = "sha256-E3RLWpGYbRuKsz0pQv7npmC7WTbdvlYFaxXQYBKT2/8=";
   };
 }
diff --git a/pkgs/development/tools/gojsontoyaml/default.nix b/pkgs/development/tools/gojsontoyaml/default.nix
index 0fd45598a837..659532e04e01 100644
--- a/pkgs/development/tools/gojsontoyaml/default.nix
+++ b/pkgs/development/tools/gojsontoyaml/default.nix
@@ -2,13 +2,13 @@
 
 buildGoModule rec {
   pname = "gojsontoyaml";
-  version = "unstable-2020-06-02";
+  version = "unstable-2020-12-16";
 
   src = fetchFromGitHub {
     owner = "brancz";
     repo = "gojsontoyaml";
-    rev = "3697ded27e8cfea8e547eb082ebfbde36f1b5ee6";
-    sha256 = "07sisadpfnzbylzirs5ski8wl9fl18dm7xhbv8imw6ksxq4v467a";
+    rev = "202f76bf8c1f8fb74941a845b349941064603185";
+    sha256 = "sha256-N49iHQh28nAZBGJnLKG/aZPdn5fwPKQpdrXXtX28yss=";
   };
 
   vendorSha256 = null;
diff --git a/pkgs/misc/vim-plugins/generated.nix b/pkgs/misc/vim-plugins/generated.nix
index 459f768a379e..e2ec999e3cea 100644
--- a/pkgs/misc/vim-plugins/generated.nix
+++ b/pkgs/misc/vim-plugins/generated.nix
@@ -269,12 +269,12 @@ let
 
   barbar-nvim = buildVimPluginFrom2Nix {
     pname = "barbar-nvim";
-    version = "2021-05-10";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "romgrk";
       repo = "barbar.nvim";
-      rev = "1e7347964ceab49c5ed7e1224de328cdd8b90919";
-      sha256 = "00p1h7nznrhjfddxzxamyjkf9cgdjw9f8zhzs366k8gfva5fh4r3";
+      rev = "78ab34de8c77e2e230502945bd4d156af5d54ab8";
+      sha256 = "0smbf73i0ingvagxyjk6lb6g2axr6mgqk74c8w27504bnvay7y0w";
     };
     meta.homepage = "https://github.com/romgrk/barbar.nvim/";
   };
@@ -401,12 +401,12 @@ let
 
   chadtree = buildVimPluginFrom2Nix {
     pname = "chadtree";
-    version = "2021-05-11";
+    version = "2021-05-12";
     src = fetchFromGitHub {
       owner = "ms-jpq";
       repo = "chadtree";
-      rev = "2ccce5fa035176b51fa628ba6c672dedf78813e8";
-      sha256 = "0nrxxwf4wy6g5222qf4bjbyai8gym1k0b4wdyjpldfk5pdxd81zg";
+      rev = "4e5d98ff3a243167cafbc48de104a279b42318ac";
+      sha256 = "006rgvhvnd30qygqdqrlqxbc3yv9qk2ndmr7rkd5fln95g7ib8b5";
     };
     meta.homepage = "https://github.com/ms-jpq/chadtree/";
   };
@@ -718,8 +718,8 @@ let
     src = fetchFromGitHub {
       owner = "Shougo";
       repo = "context_filetype.vim";
-      rev = "39a552866c83946127f244912b6d408525f03364";
-      sha256 = "0m2w4f3bn8miplxb9q76fcipdkc9lbfyp47193q57s555b1g0x0k";
+      rev = "62c74b280d5cb0c16ed7a84e5b4eff4336d30d40";
+      sha256 = "1bwwcf6lnx0drjn7192fnplnq1xw85yf2g2fh7mnab7i5w2lmbw3";
     };
     meta.homepage = "https://github.com/Shougo/context_filetype.vim/";
   };
@@ -738,12 +738,12 @@ let
 
   Coqtail = buildVimPluginFrom2Nix {
     pname = "Coqtail";
-    version = "2021-05-07";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "whonore";
       repo = "Coqtail";
-      rev = "b24f6df45012c2c53743777b306fdb9396dcb5e9";
-      sha256 = "08xqgkivczp3yciqc3xigdfl1q4c14mfa0i27didwds73i94mqqd";
+      rev = "2cababf4c1b6cc2e460bbbd63e69ed5d9fc2ee34";
+      sha256 = "086gqc76ki8jwhhk4ihawjciwjsrq9k13bgwlnjhsp2rhm0vslb7";
     };
     meta.homepage = "https://github.com/whonore/Coqtail/";
   };
@@ -1280,12 +1280,12 @@ let
 
   echodoc-vim = buildVimPluginFrom2Nix {
     pname = "echodoc-vim";
-    version = "2021-04-16";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "Shougo";
       repo = "echodoc.vim";
-      rev = "63d3c193ccb1652a972ca0def7ab82048bfb6068";
-      sha256 = "0v0fd6n6fza1rj008zpjicvh9d8mcvz3kza8hhby9nx9cjlj2dpc";
+      rev = "7dc1d45d7ffd275c06bf207795cf071ae6c9f1a4";
+      sha256 = "1hxywy423ikfkmcyqm467j741mn0ar4c5k7li0liniygjwpiaxjm";
     };
     meta.homepage = "https://github.com/Shougo/echodoc.vim/";
   };
@@ -1811,12 +1811,12 @@ let
 
   gruvbox-nvim = buildVimPluginFrom2Nix {
     pname = "gruvbox-nvim";
-    version = "2021-05-10";
+    version = "2021-05-12";
     src = fetchFromGitHub {
       owner = "npxbr";
       repo = "gruvbox.nvim";
-      rev = "c26c456a6b36cac79e01f6cf7eebb8cc9231ab16";
-      sha256 = "0kpgkdwkz27xl56yicf8b8zhqg84657s14xl0blh802cm275hz92";
+      rev = "86bc293204a6c13f1650378c39bf248bd5a5a22f";
+      sha256 = "0if2ad8s9r3pwdsqlkl6y82r0a0z86c6vlkdp28m18sxv848psx5";
     };
     meta.homepage = "https://github.com/npxbr/gruvbox.nvim/";
   };
@@ -2268,12 +2268,12 @@ let
 
   LeaderF = buildVimPluginFrom2Nix {
     pname = "LeaderF";
-    version = "2021-05-07";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "Yggdroot";
       repo = "LeaderF";
-      rev = "e65a9b9b88df503340643d3c086ec1ee53898891";
-      sha256 = "0x1hzbzjw28cisj8xzglp9qhbzzkxv3lg98imxrpswn6xynpdz4n";
+      rev = "1078dcaff8bab986245b79b26891ef592aeb0cbe";
+      sha256 = "032czx26x3118j2bqgcqa4c10nknidg4dzpsk43biw66z7l6x5jf";
     };
     meta.homepage = "https://github.com/Yggdroot/LeaderF/";
   };
@@ -2448,12 +2448,12 @@ let
 
   lsp-trouble-nvim = buildVimPluginFrom2Nix {
     pname = "lsp-trouble-nvim";
-    version = "2021-05-10";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "folke";
       repo = "lsp-trouble.nvim";
-      rev = "1dd72c22403519c160b0c694762091971bcf191e";
-      sha256 = "1831ywvbl51zd8m5rkpq59dw6s55snsyv94n28vl316cm65q28ji";
+      rev = "0f584688c3dcd6a2cacf2e750da7fe3b5e7f260e";
+      sha256 = "14wfnv98ys0mc9xpfl0d06iv63k4bfhjy8h35sngb0mikb1wb0ns";
     };
     meta.homepage = "https://github.com/folke/lsp-trouble.nvim/";
   };
@@ -2496,12 +2496,12 @@ let
 
   lualine-nvim = buildVimPluginFrom2Nix {
     pname = "lualine-nvim";
-    version = "2021-05-10";
+    version = "2021-05-12";
     src = fetchFromGitHub {
       owner = "hoob3rt";
       repo = "lualine.nvim";
-      rev = "11280b44f2f3812b60e99b7e07e4d37bee418cb0";
-      sha256 = "0ifbkjsgjilczmqn2lpkw4jl648hns06klx07md9y3sc5i5jqjjq";
+      rev = "33aaabe672f120050fd34264719e27a9bf518f18";
+      sha256 = "1zsnhlcch4wgs69zjxdxaczxpi8ypscxgmjc41v2qwk4vmjlqlv1";
     };
     meta.homepage = "https://github.com/hoob3rt/lualine.nvim/";
   };
@@ -3180,12 +3180,12 @@ let
 
   nvim-autopairs = buildVimPluginFrom2Nix {
     pname = "nvim-autopairs";
-    version = "2021-05-09";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "windwp";
       repo = "nvim-autopairs";
-      rev = "91f3c9fb469527a75163b8460128aade3b34e4a5";
-      sha256 = "19mapmqff6b80g70ybmwp9mc113wal7dgjfsx516dh21gcx3v98h";
+      rev = "cd8a10b9191ead80802100e00e741dcc89304634";
+      sha256 = "06s4q9d18j2hanwxardsbbc4dzjwdb5z5xyrn1h2i5dlvfkyj2dl";
     };
     meta.homepage = "https://github.com/windwp/nvim-autopairs/";
   };
@@ -3324,12 +3324,12 @@ let
 
   nvim-hlslens = buildVimPluginFrom2Nix {
     pname = "nvim-hlslens";
-    version = "2021-04-30";
+    version = "2021-05-12";
     src = fetchFromGitHub {
       owner = "kevinhwang91";
       repo = "nvim-hlslens";
-      rev = "4ce0b6462b33b3857e5cd9c91c9f9ac33ae0357f";
-      sha256 = "0n267lvr5sgn1n135bc1bhfxjlkcf2r1ydiccbcqs4mf8kjsj4hw";
+      rev = "f1fd61642c687f37f14e3f947c840e0f33e4b09a";
+      sha256 = "0d8bz0khmvrrcpcyrnwagykj4hmbr55a8g39qrwm3zkmry5if4qg";
     };
     meta.homepage = "https://github.com/kevinhwang91/nvim-hlslens/";
   };
@@ -3444,12 +3444,12 @@ let
 
   nvim-toggleterm-lua = buildVimPluginFrom2Nix {
     pname = "nvim-toggleterm-lua";
-    version = "2021-05-04";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "akinsho";
       repo = "nvim-toggleterm.lua";
-      rev = "53d0820fdacd8a5b3c20397a691b12c84a5a0aaa";
-      sha256 = "190iw5449ybsaz3y9w5yy5kybr06cih4vkf75jg09lp4mx8z2anb";
+      rev = "5bf694fce51f0711e3e005e105992178d87a86c6";
+      sha256 = "1ka3hqcyjbrnawiz4wx35qpql3jxl0vllnskz5vqhqr5gfl9rz5b";
     };
     meta.homepage = "https://github.com/akinsho/nvim-toggleterm.lua/";
   };
@@ -3468,12 +3468,12 @@ let
 
   nvim-treesitter = buildVimPluginFrom2Nix {
     pname = "nvim-treesitter";
-    version = "2021-05-08";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "nvim-treesitter";
       repo = "nvim-treesitter";
-      rev = "9e0f764b675d987bbdd45af38531cc864c8cfc4c";
-      sha256 = "1rw9jasxfxghja5dlfz75iiz5rshisjnwffhzdqa9mil0pvahjr8";
+      rev = "efbb1c66d27eb5b4bfbcc1f59d3384e0641c8214";
+      sha256 = "1sfc7890v4lgc7r4a5k922qbnc1lpjp3i8sj1jqqxd4a73x1nsvm";
     };
     meta.homepage = "https://github.com/nvim-treesitter/nvim-treesitter/";
   };
@@ -3504,12 +3504,12 @@ let
 
   nvim-treesitter-textobjects = buildVimPluginFrom2Nix {
     pname = "nvim-treesitter-textobjects";
-    version = "2021-04-23";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "nvim-treesitter";
       repo = "nvim-treesitter-textobjects";
-      rev = "522b26a8795994b719a921a03cfacb0d7dcabf78";
-      sha256 = "0ww1agq33l3jhbfwr5ri9m3ipr48kgwzlzxv96w43x6y29p61g2v";
+      rev = "4f1ace57fbeed1f4e5613ea8c9b414ff0833eade";
+      sha256 = "1in2q3igq74m900rkchdcgfcy3h60663b58xn2ydlbjsbzhc7vrn";
     };
     meta.homepage = "https://github.com/nvim-treesitter/nvim-treesitter-textobjects/";
   };
@@ -3863,6 +3863,18 @@ let
     meta.homepage = "https://github.com/python-mode/python-mode/";
   };
 
+  QFEnter = buildVimPluginFrom2Nix {
+    pname = "QFEnter";
+    version = "2020-10-09";
+    src = fetchFromGitHub {
+      owner = "yssl";
+      repo = "QFEnter";
+      rev = "df0a75b287c210f98ae353a12bbfdaf73d858beb";
+      sha256 = "0gdp7nmjlp8ng2rp2v66d8bincnkwrqqpbggb079f0f9szrqlp54";
+    };
+    meta.homepage = "https://github.com/yssl/QFEnter/";
+  };
+
   quick-scope = buildVimPluginFrom2Nix {
     pname = "quick-scope";
     version = "2020-12-28";
@@ -4659,12 +4671,12 @@ let
 
   telescope-nvim = buildVimPluginFrom2Nix {
     pname = "telescope-nvim";
-    version = "2021-05-09";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "nvim-telescope";
       repo = "telescope.nvim";
-      rev = "c061c216bfe082384d542a487ce02e9aed6177df";
-      sha256 = "1x4mhxwp9crs63a43wlph4jbl92192sl3hiwchwlim0g1wdar0ky";
+      rev = "22a78a46364b1e79549267c9365a31684689ed08";
+      sha256 = "0y0y37v0qikfi7p9a5c63knil70r4mk249hsyxjjgg2m3di8i29g";
     };
     meta.homepage = "https://github.com/nvim-telescope/telescope.nvim/";
   };
@@ -5464,12 +5476,12 @@ let
 
   vim-clap = buildVimPluginFrom2Nix {
     pname = "vim-clap";
-    version = "2021-05-06";
+    version = "2021-05-12";
     src = fetchFromGitHub {
       owner = "liuchengxu";
       repo = "vim-clap";
-      rev = "236919da99a534307e5cf2b204ddf1e3c1a1816e";
-      sha256 = "0vajjv8nw41n783vsfqy72z4r3m36s7wkfxs96scpga18v3xgqng";
+      rev = "8c17472d0fe5a515ab3618edd0cad3dd16972e09";
+      sha256 = "15k2agpi832wdfacf289fffkvgg8q2gc01y9fa8qsnhjqnlrqra9";
     };
     meta.homepage = "https://github.com/liuchengxu/vim-clap/";
   };
@@ -7135,12 +7147,12 @@ let
 
   vim-matchup = buildVimPluginFrom2Nix {
     pname = "vim-matchup";
-    version = "2021-05-10";
+    version = "2021-05-12";
     src = fetchFromGitHub {
       owner = "andymass";
       repo = "vim-matchup";
-      rev = "ea2612d87a38ef2261f66063571eef06689bbb8e";
-      sha256 = "0a7dxvl8p3n8kfm1abm1k2r9l6s230585521scgh8y1sh88zkpay";
+      rev = "f30d2d2d3a60905a09b516f843c130232da10060";
+      sha256 = "0fj4hn481n5rg7z9hkybzpa6zv1dqc120i6112c8wasl89rg6xl5";
     };
     meta.homepage = "https://github.com/andymass/vim-matchup/";
   };
@@ -9044,12 +9056,12 @@ let
 
   vimspector = buildVimPluginFrom2Nix {
     pname = "vimspector";
-    version = "2021-05-03";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "puremourning";
       repo = "vimspector";
-      rev = "4e04a862cb37105acebac8b6ac5b275dc7865815";
-      sha256 = "02z5imcj7dqhkjxizcxswikabnbnfx9fnrbqcwgn0xcnf80c5azg";
+      rev = "2708e8e6ecc00bfd7d9fee923d287345553aba02";
+      sha256 = "173l5rmg12rqcl7f0lq9f5shx94mf7f8793m74ls1v3k06xdcqj2";
       fetchSubmodules = true;
     };
     meta.homepage = "https://github.com/puremourning/vimspector/";
@@ -9153,12 +9165,12 @@ let
 
   which-key-nvim = buildVimPluginFrom2Nix {
     pname = "which-key-nvim";
-    version = "2021-05-09";
+    version = "2021-05-11";
     src = fetchFromGitHub {
       owner = "folke";
       repo = "which-key.nvim";
-      rev = "1ccba9d0b553b08feaca9f432386f9c33bd1656f";
-      sha256 = "0qarcdwyd1pbcaqzzhzq4sh8d278j1xxf90ibp6h1451fcvkymid";
+      rev = "342c8cdb3651967c96c356eb2d79561c0c9273ee";
+      sha256 = "1v1z8yk711gjd3qawj2vmwa5l9jmqqxfj9jjw9zq1m011msp18iv";
     };
     meta.homepage = "https://github.com/folke/which-key.nvim/";
   };
@@ -9335,12 +9347,12 @@ let
 
   zig-vim = buildVimPluginFrom2Nix {
     pname = "zig-vim";
-    version = "2021-04-07";
+    version = "2021-05-12";
     src = fetchFromGitHub {
       owner = "ziglang";
       repo = "zig.vim";
-      rev = "fc32adfada0fac7a2f6088672e177d410c9e3ae1";
-      sha256 = "051l2dig6861xzl6zg41d6a776jhms7v6a86cap1ipd2rxkqh5yh";
+      rev = "9ec189bc76ed2850f916394ed8d6127290f51338";
+      sha256 = "0xl2pxgmam5ls7a59bdvx3gyzcgsq3wvgby2c5667627kcq05j6s";
     };
     meta.homepage = "https://github.com/ziglang/zig.vim/";
   };
diff --git a/pkgs/misc/vim-plugins/vim-plugin-names b/pkgs/misc/vim-plugins/vim-plugin-names
index 8dd07b20256f..fd90458c865b 100644
--- a/pkgs/misc/vim-plugins/vim-plugin-names
+++ b/pkgs/misc/vim-plugins/vim-plugin-names
@@ -772,6 +772,7 @@ ycm-core/YouCompleteMe
 Yggdroot/indentLine
 Yggdroot/LeaderF
 Yilin-Yang/vim-markbar
+yssl/QFEnter
 yuki-yano/ncm2-dictionary
 yunlingz/ci_dark
 zah/nim.vim
diff --git a/pkgs/os-specific/linux/tiscamera/default.nix b/pkgs/os-specific/linux/tiscamera/default.nix
index f9196fc16864..38bc7c3eaff3 100644
--- a/pkgs/os-specific/linux/tiscamera/default.nix
+++ b/pkgs/os-specific/linux/tiscamera/default.nix
@@ -14,24 +14,27 @@
 , libunwind
 , elfutils
 , orc
-, python3
+, python3Packages
 , libuuid
+, wrapGAppsHook
 }:
 
 stdenv.mkDerivation rec {
   pname = "tiscamera";
-  version = "0.11.1";
+  version = "0.13.1";
 
   src = fetchFromGitHub {
     owner = "TheImagingSource";
     repo = pname;
     rev = "v-${pname}-${version}";
-    sha256 = "07vp6khgl6qd3a4519dmx1s5bfw7pld793p50pjn29fqh91fm93g";
+    sha256 = "0hpy9yhc4mn6w8gvzwif703smmcys0j2jqbz2xfghqxcyb0ykplj";
   };
 
   nativeBuildInputs = [
     cmake
     pkg-config
+    python3Packages.wrapPython
+    wrapGAppsHook
   ];
 
   buildInputs = [
@@ -47,33 +50,43 @@ stdenv.mkDerivation rec {
     libunwind
     elfutils
     orc
-    python3
     libuuid
+    python3Packages.python
+    python3Packages.pyqt5
   ];
 
+  pythonPath = with python3Packages; [ pyqt5 pygobject3 ];
+
+  propagatedBuildInputs = pythonPath;
+
   cmakeFlags = [
     "-DBUILD_ARAVIS=OFF" # For GigE support. Won't need it as our camera is usb.
     "-DBUILD_GST_1_0=ON"
     "-DBUILD_TOOLS=ON"
     "-DBUILD_V4L2=ON"
     "-DBUILD_LIBUSB=ON"
+    "-DBUILD_TESTS=ON"
     "-DTCAM_INSTALL_UDEV=${placeholder "out"}/lib/udev/rules.d"
     "-DTCAM_INSTALL_UVCDYNCTRL=${placeholder "out"}/share/uvcdynctrl/data/199e"
     "-DTCAM_INSTALL_GST_1_0=${placeholder "out"}/lib/gstreamer-1.0"
     "-DTCAM_INSTALL_GIR=${placeholder "out"}/share/gir-1.0"
     "-DTCAM_INSTALL_TYPELIB=${placeholder "out"}/lib/girepository-1.0"
     "-DTCAM_INSTALL_SYSTEMD=${placeholder "out"}/etc/systemd/system"
+    "-DTCAM_INSTALL_PYTHON3_MODULES=${placeholder "out"}/lib/${python3Packages.python.libPrefix}/site-packages"
+    "-DGSTREAMER_1.0_INCLUDEDIR=${placeholder "out"}/include/gstreamer-1.0"
     # There are gobject introspection commands launched as part of the build. Those have a runtime
     # dependency on `libtcam` (which itself is built as part of this build). In order to allow
     # that, we set the dynamic linker's path to point on the build time location of the library.
     "-DCMAKE_SKIP_BUILD_RPATH=OFF"
   ];
 
-  postPatch = ''
-    substituteInPlace ./src/BackendLoader.cpp \
-      --replace '"libtcam-v4l2.so"' "\"$out/lib/tcam-0/libtcam-v4l2.so\"" \
-      --replace '"libtcam-aravis.so"' "\"$out/lib/tcam-0/libtcam-aravis.so\"" \
-      --replace '"libtcam-libusb.so"' "\"$out/lib/tcam-0/libtcam-libusb.so\""
+  doCheck = true;
+
+  # gstreamer tests requires, besides gst-plugins-bad, plugins installed by this expression.
+  checkPhase = "ctest --force-new-ctest-process -E gstreamer";
+
+  postFixup = ''
+    wrapPythonPrograms "$out $pythonPath"
   '';
 
   meta = with lib; {
diff --git a/pkgs/os-specific/linux/wireguard/default.nix b/pkgs/os-specific/linux/wireguard/default.nix
index e6b7de29fd2e..2578d09fc1ec 100644
--- a/pkgs/os-specific/linux/wireguard/default.nix
+++ b/pkgs/os-specific/linux/wireguard/default.nix
@@ -7,11 +7,11 @@ assert lib.versionOlder kernel.version "5.6";
 
 stdenv.mkDerivation rec {
   pname = "wireguard";
-  version = "1.0.20210219";
+  version = "1.0.20210424";
 
   src = fetchzip {
     url = "https://git.zx2c4.com/wireguard-linux-compat/snapshot/wireguard-linux-compat-${version}.tar.xz";
-    sha256 = "sha256-ZYZBnfX8DP0IV3VEBSzg7wnFCnlCzOT6Ql3kFZ0klfQ=";
+    sha256 = "sha256-VLtIxYh308X28c9EOeHx0eA7HP2aRlekPXRt015/qAg=";
   };
 
   hardeningDisable = [ "pic" ];
diff --git a/pkgs/servers/caddy/default.nix b/pkgs/servers/caddy/default.nix
index 3e6641b8d26f..3d461d022de5 100644
--- a/pkgs/servers/caddy/default.nix
+++ b/pkgs/servers/caddy/default.nix
@@ -2,7 +2,7 @@
 
 buildGoModule rec {
   pname = "caddy";
-  version = "2.3.0";
+  version = "2.4.0";
 
   subPackages = [ "cmd/caddy" ];
 
@@ -10,10 +10,10 @@ buildGoModule rec {
     owner = "caddyserver";
     repo = pname;
     rev = "v${version}";
-    sha256 = "03cbbr8z9g156lgx7pyn1p1i4mh8ayhhhv24r1z3h1vgq6y4ka7r";
+    sha256 = "sha256-gPw6o9B1jV1XQ86zlfrbJqUtVWMWArV8zMHIm6Wkz1M=";
   };
 
-  vendorSha256 = "0gpzxjiyv7l1nibh1gas4mvinamiyyfgidd8cy4abz95v6z437lp";
+  vendorSha256 = "sha256-ZOrhR03m+cs+mTQio3qEIf+1B0IP0i2+x+vcml5AMco=";
 
   passthru.tests = { inherit (nixosTests) caddy; };
 
diff --git a/pkgs/servers/hylafaxplus/default.nix b/pkgs/servers/hylafaxplus/default.nix
index fc75003f392c..e8bf832a15cf 100644
--- a/pkgs/servers/hylafaxplus/default.nix
+++ b/pkgs/servers/hylafaxplus/default.nix
@@ -67,6 +67,9 @@ stdenv.mkDerivation {
     url = "mirror://sourceforge/hylafax/hylafax-${version}.tar.gz";
     inherit sha256;
   };
+  patches = [
+    ./libtiff-4.2.patch  # adjust configure check to work with libtiff > 4.1
+  ];
   # Note that `configure` (and maybe `faxsetup`) are looking
   # for a couple of standard binaries in the `PATH` and
   # hardcode their absolute paths in the new package.
diff --git a/pkgs/servers/hylafaxplus/libtiff-4.2.patch b/pkgs/servers/hylafaxplus/libtiff-4.2.patch
new file mode 100644
index 000000000000..5da106565f06
--- /dev/null
+++ b/pkgs/servers/hylafaxplus/libtiff-4.2.patch
@@ -0,0 +1,13 @@
+diff --git a/configure b/configure
+index 7456dcb..90f0e8d 100755
+--- a/configure
++++ b/configure
+@@ -2583,7 +2583,7 @@ EOF
+ 				echo '#define TIFFSTRIPBYTECOUNTS uint32'
+ 				echo '#define TIFFVERSION TIFF_VERSION'
+ 				echo '#define TIFFHEADER TIFFHeader';;
+-		4.[01])		tiff_runlen_t="uint32"
++		4.[012])	tiff_runlen_t="uint32"
+ 				tiff_offset_t="uint64"
+ 				echo '#define TIFFSTRIPBYTECOUNTS uint64'
+ 				echo '#define TIFFVERSION TIFF_VERSION_CLASSIC'
diff --git a/pkgs/servers/matrix-synapse/default.nix b/pkgs/servers/matrix-synapse/default.nix
index 69bfa34e5869..21cd4a6b86c7 100644
--- a/pkgs/servers/matrix-synapse/default.nix
+++ b/pkgs/servers/matrix-synapse/default.nix
@@ -12,11 +12,11 @@ let
 in
 buildPythonApplication rec {
   pname = "matrix-synapse";
-  version = "1.33.1";
+  version = "1.33.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-kH5HhkfUL+WzcX/0pK0dV1bI34TpmgRpx3m/UchdAEE=";
+    sha256 = "sha256-9WZjuVvWpzCR1MjeMXfja/YV2YFHdo7QbjgUWDymCpM=";
   };
 
   patches = [
diff --git a/pkgs/shells/nushell/default.nix b/pkgs/shells/nushell/default.nix
index 98a73e1acd38..7d4b04d3c94b 100644
--- a/pkgs/shells/nushell/default.nix
+++ b/pkgs/shells/nushell/default.nix
@@ -10,6 +10,8 @@
 , libiconv
 , AppKit
 , Security
+, nghttp2
+, libgit2
 , withStableFeatures ? true
 }:
 
@@ -32,10 +34,15 @@ rustPlatform.buildRustPackage rec {
   buildInputs = [ openssl ]
     ++ lib.optionals stdenv.isDarwin [ zlib libiconv Security ]
     ++ lib.optionals (withStableFeatures && stdenv.isLinux) [ xorg.libX11 ]
-    ++ lib.optionals (withStableFeatures && stdenv.isDarwin) [ AppKit ];
+    ++ lib.optionals (withStableFeatures && stdenv.isDarwin) [ AppKit nghttp2 libgit2 ];
 
   cargoBuildFlags = lib.optional withStableFeatures "--features stable";
 
+  # TODO investigate why tests are broken on darwin
+  # failures show that tests try to write to paths
+  # outside of TMPDIR
+  doCheck = ! stdenv.isDarwin;
+
   checkPhase = ''
     runHook preCheck
     echo "Running cargo test"
diff --git a/pkgs/tools/misc/broot/default.nix b/pkgs/tools/misc/broot/default.nix
index 0fa7841074ad..0aeef02f32d1 100644
--- a/pkgs/tools/misc/broot/default.nix
+++ b/pkgs/tools/misc/broot/default.nix
@@ -4,33 +4,39 @@
 , fetchCrate
 , installShellFiles
 , makeWrapper
+, pkg-config
+, libgit2
+, oniguruma
 , libiconv
-, zlib
 , Security
+, zlib
 }:
 
 rustPlatform.buildRustPackage rec {
   pname = "broot";
-  version = "1.3.1";
+  version = "1.4.0";
 
   src = fetchCrate {
     inherit pname version;
-    sha256 = "sha256-Iz9pXvgPIGUnfbnvk5kYAqlrMlz3I2kLszPe8GwwHVk=";
+    sha256 = "sha256-6UveXa0rMWt5FbmhB0CsYRMGMXxL8FB/XivB4Ec93PY=";
   };
 
-  cargoHash = "sha256-eECAaTUgqasuDhLSk8p/CWSQmV8yV30UoMy3GZCRbGE=";
+  cargoHash = "sha256-c6U1ZOaXZ7RnKD7q0WTkam9gL8SL/naSeHGbB5I82lk=";
 
   nativeBuildInputs = [
-    makeWrapper
     installShellFiles
+    makeWrapper
+    pkg-config
   ];
 
-  buildInputs = lib.optionals stdenv.isDarwin [
+  buildInputs = [ libgit2 oniguruma ] ++ lib.optionals stdenv.isDarwin [
     libiconv
     Security
     zlib
   ];
 
+  RUSTONIG_SYSTEM_LIBONIG = true;
+
   postPatch = ''
     # Fill the version stub in the man page. We can't fill the date
     # stub reproducibly.
diff --git a/pkgs/tools/misc/cpulimit/default.nix b/pkgs/tools/misc/cpulimit/default.nix
index 27e661e26970..7fdaa319619d 100644
--- a/pkgs/tools/misc/cpulimit/default.nix
+++ b/pkgs/tools/misc/cpulimit/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "cpulimit";
-  version = "2.6";
+  version = "2.7";
 
   src = fetchurl {
     url = "mirror://sourceforge/limitcpu/${pname}-${version}.tar.gz";
-    sha256 = "0xf0r6zxaqan1drz61nqf95p2pkiiihpvrjhrr9dx9j3vswyx31g";
+    sha256 = "sha256-HeBApPikDf6MegJf6YB1ZzRo+8P8zMvCMbx0AvYuxKA=";
   };
 
   buildFlags = with stdenv; [ (
diff --git a/pkgs/tools/misc/librespeed-cli/default.nix b/pkgs/tools/misc/librespeed-cli/default.nix
index b1ab29d8acb3..09d6de6ad9d3 100644
--- a/pkgs/tools/misc/librespeed-cli/default.nix
+++ b/pkgs/tools/misc/librespeed-cli/default.nix
@@ -5,13 +5,13 @@
 
 buildGoModule rec {
   pname = "librespeed-cli";
-  version = "1.0.8";
+  version = "1.0.9";
 
   src = fetchFromGitHub {
     owner = "librespeed";
     repo = "speedtest-cli";
     rev = "v${version}";
-    sha256 = "sha256-cbLuAOAGWmYj6xR2AjpwvRXrP3SXfHhjUp5MVLqC0WE=";
+    sha256 = "sha256-rtZZgx5QNwYd6vXSts/ICSiXv7sMZA8ihHgxTjZ/6KQ=";
   };
 
   vendorSha256 = "sha256-psZyyySpY06J+ji+9uHUtX7Ks1hzZC3zINszYP75NfQ=";
diff --git a/pkgs/tools/misc/swaglyrics/default.nix b/pkgs/tools/misc/swaglyrics/default.nix
index b3f58c4cdb18..a82a71abf96c 100644
--- a/pkgs/tools/misc/swaglyrics/default.nix
+++ b/pkgs/tools/misc/swaglyrics/default.nix
@@ -19,7 +19,8 @@ python3.pkgs.buildPythonApplication rec {
     substituteInPlace setup.py \
       --replace 'requests>=2.24.0' 'requests~=2.23' \
       --replace 'beautifulsoup4==4.9.1' 'beautifulsoup4~=4.9' \
-      --replace 'colorama==0.4.3' 'colorama~=0.4'
+      --replace 'colorama==0.4.3' 'colorama~=0.4' \
+      --replace 'unidecode==1.1.1' 'unidecode~=1.2'
   '';
 
   preBuild = "export HOME=$NIX_BUILD_TOP";
diff --git a/pkgs/tools/networking/sniffglue/default.nix b/pkgs/tools/networking/sniffglue/default.nix
index 13cf29c0dcac..13efa6e999cf 100644
--- a/pkgs/tools/networking/sniffglue/default.nix
+++ b/pkgs/tools/networking/sniffglue/default.nix
@@ -2,16 +2,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "sniffglue";
-  version = "0.12.0";
+  version = "0.12.1";
 
   src = fetchFromGitHub {
     owner = "kpcyrd";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-bvLkeC5Hm1enaWJtYmnnINgpSO3tlg1SsEzeMSF9OXk=";
+    sha256 = "sha256-2LyCiW1MrAahpbzyxot0INPMzo0Vl/JToMZTinCQdgs=";
   };
 
-  cargoSha256 = "sha256-dxE1o7JqGvWwOtuhHgq0t9Zw1wQt5lt1OJJY992jjjA=";
+  cargoSha256 = "sha256-AGwiyC7Zf8KHQIHfHByL06sdbS4vEXUyj1wGw7Q1N9I=";
 
   nativeBuildInputs = [ pkg-config ];
 
diff --git a/pkgs/tools/networking/wireguard-tools/default.nix b/pkgs/tools/networking/wireguard-tools/default.nix
index 8bdcd8708d9f..5972d781bd15 100644
--- a/pkgs/tools/networking/wireguard-tools/default.nix
+++ b/pkgs/tools/networking/wireguard-tools/default.nix
@@ -12,11 +12,11 @@
 
 stdenv.mkDerivation rec {
   pname = "wireguard-tools";
-  version = "1.0.20210315";
+  version = "1.0.20210424";
 
   src = fetchzip {
     url = "https://git.zx2c4.com/wireguard-tools/snapshot/wireguard-tools-${version}.tar.xz";
-    sha256 = "sha256-aCqgjriqhBInK7C7KapoKVfgj+zreGQzacMKwbMF1Og=";
+    sha256 = "sha256-0aGaE4EBb4wb5g32Wugakt7w41sb97Hqqkac7qE641M=";
   };
 
   outputs = [ "out" "man" ];
diff --git a/pkgs/tools/typesetting/ted/default.nix b/pkgs/tools/typesetting/ted/default.nix
index 07e89f9f8edd..bd21ad4c437b 100644
--- a/pkgs/tools/typesetting/ted/default.nix
+++ b/pkgs/tools/typesetting/ted/default.nix
@@ -58,8 +58,8 @@ stdenv.mkDerivation rec {
     runHook postInstall
   '';
 
-  nativeBuildInputs = [ makeWrapper ];
-  buildInputs = [ pkg-config zlib pcre xorg.xlibsWrapper xorg.libXpm libjpeg libtiff libpng gtk2 libpaper ];
+  nativeBuildInputs = [ pkg-config makeWrapper ];
+  buildInputs = [ zlib pcre xorg.xlibsWrapper xorg.libXpm libjpeg libtiff libpng gtk2 libpaper ];
 
   meta = with lib; {
     description = "An easy rich text processor";