diff --git a/nixos/modules/services/networking/iwd.nix b/nixos/modules/services/networking/iwd.nix
index cfc536fc5b5..eb03d2e1d63 100644
--- a/nixos/modules/services/networking/iwd.nix
+++ b/nixos/modules/services/networking/iwd.nix
@@ -20,14 +20,7 @@ in {
 
     services.dbus.packages = [ pkgs.iwd ];
 
-    systemd.services.iwd = {
-      description = "Wireless daemon";
-      before = [ "network.target" ];
-      wants = [ "network.target" ];
-      wantedBy = [ "multi-user.target" ];
-
-      serviceConfig.ExecStart = "${pkgs.iwd}/libexec/iwd";
-    };
+    systemd.packages = [ pkgs.iwd ];
 
     systemd.tmpfiles.rules = [
       "d /var/lib/iwd 0700 root root -"
diff --git a/nixos/tests/netdata.nix b/nixos/tests/netdata.nix
index eb45db6f04c..9bd147968e4 100644
--- a/nixos/tests/netdata.nix
+++ b/nixos/tests/netdata.nix
@@ -20,6 +20,9 @@ import ./make-test.nix ({ pkgs, ...} : {
 
     $netdata->waitForUnit("netdata.service");
 
+    # wait for the service to listen before sending a request
+    $netdata->waitForOpenPort(19999);
+
     # check if the netdata main page loads.
     $netdata->succeed("curl --fail http://localhost:19999/");
 
diff --git a/nixos/tests/networking.nix b/nixos/tests/networking.nix
index cd5d537a3be..ff088ad2621 100644
--- a/nixos/tests/networking.nix
+++ b/nixos/tests/networking.nix
@@ -448,8 +448,8 @@ let
 
       testScript = ''
         my $targetList = <<'END';
-        tap0: tap UNKNOWN_FLAGS:800 user 0
-        tun0: tun UNKNOWN_FLAGS:800 user 0
+        tap0: tap persist user 0
+        tun0: tun persist user 0
         END
 
         # Wait for networking to come up
@@ -552,15 +552,15 @@ let
 
       testScript = ''
         my $targetIPv4Table = <<'END';
-        10.0.0.0/16 scope link mtu 1500 
+        10.0.0.0/16 proto static scope link mtu 1500 
         192.168.1.0/24 proto kernel scope link src 192.168.1.2 
-        192.168.2.0/24 via 192.168.1.1 
+        192.168.2.0/24 via 192.168.1.1 proto static 
         END
 
         my $targetIPv6Table = <<'END';
         2001:1470:fffd:2097::/64 proto kernel metric 256 pref medium
-        2001:1470:fffd:2098::/64 via fdfd:b3f0::1 metric 1024 pref medium
-        fdfd:b3f0::/48 metric 1024 pref medium
+        2001:1470:fffd:2098::/64 via fdfd:b3f0::1 proto static metric 1024 pref medium
+        fdfd:b3f0::/48 proto static metric 1024 pref medium
         END
 
         $machine->start;
diff --git a/pkgs/applications/altcoins/nano-wallet/default.nix b/pkgs/applications/altcoins/nano-wallet/default.nix
index 76ee914bd3d..7491e830628 100644
--- a/pkgs/applications/altcoins/nano-wallet/default.nix
+++ b/pkgs/applications/altcoins/nano-wallet/default.nix
@@ -3,13 +3,13 @@
 stdenv.mkDerivation rec {
 
   name = "nano-wallet-${version}";
-  version = "14.2";
+  version = "15.2";
 
   src = fetchFromGitHub {
     owner = "nanocurrency";
     repo = "raiblocks";
     rev = "V${version}";
-    sha256 = "0jbv5a8sz403a1pqcgl32idk6y0z510h7ikjg1dcxla0rsch6ipl";
+    sha256 = "0ngsnaczw5y709zk52flp6m2c83q3kxfgz0bzi8rzfjxp10ncnz3";
     fetchSubmodules = true;
   };
 
diff --git a/pkgs/applications/audio/mixxx/default.nix b/pkgs/applications/audio/mixxx/default.nix
index 60a0695ffec..746e306d377 100644
--- a/pkgs/applications/audio/mixxx/default.nix
+++ b/pkgs/applications/audio/mixxx/default.nix
@@ -1,34 +1,24 @@
-{ stdenv, fetchurl, chromaprint, fetchpatch, fftw, flac, faad2, mp4v2
+{ stdenv, fetchFromGitHub, chromaprint, fetchpatch, fftw, flac, faad2, mp4v2
 , libid3tag, libmad, libopus, libshout, libsndfile, libusb1, libvorbis
 , pkgconfig, portaudio, portmidi, protobuf, qt4, rubberband, scons, sqlite
-, taglib, vampSDK
+, taglib, upower, vampSDK
 }:
 
 stdenv.mkDerivation rec {
   name = "mixxx-${version}";
-  version = "2.0.0";
+  version = "2.1.3";
 
-  src = fetchurl {
-    url = "https://downloads.mixxx.org/${name}/${name}-src.tar.gz";
-    sha256 = "0vb71w1yq0xwwsclrn2jj9bk8w4n14rfv5c0aw46c11mp8xz7f71";
+  src = fetchFromGitHub {
+    owner = "mixxxdj";
+    repo = "mixxx";
+    rev = "release-${version}";
+    sha256 = "1fm8lkbnxka4haidf6yr8mb3r6vaxmc97hhrp8pcx0fvq2mnzvy2";
   };
 
-  patches = [
-    (fetchpatch {
-      url = "https://sources.debian.net/data/main/m/mixxx/2.0.0~dfsg-7.1/debian/patches/0007-fix_gcc6_issue.patch";
-      sha256 = "0kpyv10wcjcvbijk6vpq54gx9sqzrq4kq2qilc1czmisp9qdy5sd";
-    })
-    (fetchpatch {
-      url = "https://622776.bugs.gentoo.org/attachment.cgi?id=487284";
-      name = "sqlite.patch";
-      sha256 = "1qqbd8nrxrjcc1dwvyqfq1k2yz3l071sfcgd2dmpk6j8d4j5kx31";
-    })
- ];
-
   buildInputs = [
     chromaprint fftw flac faad2 mp4v2 libid3tag libmad libopus libshout libsndfile
     libusb1 libvorbis pkgconfig portaudio portmidi protobuf qt4
-    rubberband scons sqlite taglib vampSDK
+    rubberband scons sqlite taglib upower vampSDK
   ];
 
   sconsFlags = [
@@ -56,7 +46,7 @@ stdenv.mkDerivation rec {
     homepage = https://mixxx.org;
     description = "Digital DJ mixing software";
     license = licenses.gpl2Plus;
-    maintainers = [ maintainers.aszlig maintainers.goibhniu ];
+    maintainers = [ maintainers.aszlig maintainers.goibhniu maintainers.bfortz ];
     platforms = platforms.linux;
   };
 }
diff --git a/pkgs/applications/misc/calibre/default.nix b/pkgs/applications/misc/calibre/default.nix
index 15d894b0413..d66a778c1cd 100644
--- a/pkgs/applications/misc/calibre/default.nix
+++ b/pkgs/applications/misc/calibre/default.nix
@@ -5,12 +5,12 @@
 }:
 
 stdenv.mkDerivation rec {
-  version = "3.29.0";
+  version = "3.30.0";
   name = "calibre-${version}";
 
   src = fetchurl {
     url = "https://download.calibre-ebook.com/${version}/${name}.tar.xz";
-    sha256 = "1r29vi8j51r0nnzpjbg34ryvizzkn31sq1iz7z748wjfgr87wmyh";
+    sha256 = "0j7w63kniqnpr8v1aldzbim2dyrk79n23mzw9y56jqd0k47m8zfz";
   };
 
   patches = [
diff --git a/pkgs/applications/misc/subsurface/default.nix b/pkgs/applications/misc/subsurface/default.nix
index 5e1e7bf3225..1b998c48580 100644
--- a/pkgs/applications/misc/subsurface/default.nix
+++ b/pkgs/applications/misc/subsurface/default.nix
@@ -4,14 +4,14 @@
 }:
 
 let
-  version = "4.7.5";
+  version = "4.8.1";
 
   libdc = stdenv.mkDerivation rec {
     name = "libdivecomputer-ssrf-${version}";
 
     src = fetchurl {
       url = "https://subsurface-divelog.org/downloads/libdivecomputer-subsurface-branch-${version}.tgz";
-      sha256 = "1xsgnmgc7yb46lflx8ynkbdxg2f6sny6xg6caqgx7rf0x1jmjj4x";
+      sha256 = "1x6z08gfp9jldv7vcsdasjcarns43qns9cm8s9w27n0c2lvchjvy";
     };
 
     nativeBuildInputs = [ autoreconfHook ];
@@ -70,7 +70,7 @@ in stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "https://subsurface-divelog.org/downloads/Subsurface-${version}.tgz";
-    sha256 = "0qqmnrmj2alr4rc2nqkv8sbdp92xb6j4j468wn6yqvgb23n77b82";
+    sha256 = "0758sw05gjy8sckvaqc0hmbh2kibmzapgp0hlk8rsp1vsldq4vd2";
   };
 
   buildInputs = [
diff --git a/pkgs/applications/misc/xkbd/default.nix b/pkgs/applications/misc/xkbd/default.nix
new file mode 100644
index 00000000000..ccbb88bd1a8
--- /dev/null
+++ b/pkgs/applications/misc/xkbd/default.nix
@@ -0,0 +1,30 @@
+{ stdenv, fetchFromGitHub, freetype, libXrender, libXft, xextproto
+, xinput, libXi, libXext, libXtst, libXpm, libX11, xproto, autoreconfHook
+}:
+
+stdenv.mkDerivation rec {
+  name = "xkbd-${version}";
+  version = "0.8.18";
+
+  src = fetchFromGitHub {
+    owner = "mahatma-kaganovich";
+    repo = "xkbd";
+    rev = name;
+    sha256 = "05ry6q75jq545kf6p20nhfywaqf2wdkfiyp6iwdpv9jh238hf7m9";
+  };
+
+  buildInputs = [
+    freetype libXrender libXft libXext libXtst libXpm libX11
+    libXi xextproto xinput xproto
+  ];
+
+  nativeBuildInputs = [ autoreconfHook ];
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/mahatma-kaganovich/xkbd;
+    description = "onscreen soft keyboard for X11";
+    license = licenses.gpl2Plus;
+    maintainers = [ maintainers.genesis ];
+    platforms = platforms.linux;
+  };
+}
diff --git a/pkgs/applications/networking/flexget/default.nix b/pkgs/applications/networking/flexget/default.nix
index 87c7bddab6f..53ee46e2060 100644
--- a/pkgs/applications/networking/flexget/default.nix
+++ b/pkgs/applications/networking/flexget/default.nix
@@ -36,11 +36,11 @@ with python'.pkgs;
 
 buildPythonApplication rec {
   pname = "FlexGet";
-  version = "2.14.9";
+  version = "2.14.18";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1a8nxfr0rzwwd7b0nxr7zmw04ygbqvnzbi4w4nw2w8xiy46zid3q";
+    sha256 = "1pyvm1d23qy71rg7fzxcal8978kni7sn09zw4s4dsq56g8w80ay9";
   };
 
   postPatch = ''
diff --git a/pkgs/applications/networking/irc/konversation/default.nix b/pkgs/applications/networking/irc/konversation/default.nix
index c41b6116b29..ccee78a64da 100644
--- a/pkgs/applications/networking/irc/konversation/default.nix
+++ b/pkgs/applications/networking/irc/konversation/default.nix
@@ -30,13 +30,13 @@
 
 let
   pname = "konversation";
-  version = "1.7.4";
+  version = "1.7.5";
 in mkDerivation rec {
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "mirror://kde/stable/${pname}/${version}/src/${name}.tar.xz";
-    sha256 = "0y4rj4fcl1wsi3y1fhnzad9nf4llwrnipfm9mfm55kqnx1zmpvqp";
+    sha256 = "0h098yhlp36ls6pdvs2r93ig8dv4fys62m0h6wxccprb0qrpbgv0";
   };
 
   buildInputs = [
@@ -70,13 +70,6 @@ in mkDerivation rec {
     kdoctools
   ];
 
-  patches = [
-    (fetchpatch {
-      url = "https://cgit.kde.org/konversation.git/patch/?id=20018b3d0798421c9cb8a9d983e5a5b34bd88e8d";
-      sha256 = "0y5m5zimfhc0d1xnkzs05c8ig11lhwdn04fk76vi7966hx8wggnn";
-    })
-  ];
-
   meta = {
     description = "Integrated IRC client for KDE";
     license = with lib.licenses; [ gpl2 ];
diff --git a/pkgs/applications/science/math/sage/sage-src.nix b/pkgs/applications/science/math/sage/sage-src.nix
index 096f2212cc4..7fd49fe205c 100644
--- a/pkgs/applications/science/math/sage/sage-src.nix
+++ b/pkgs/applications/science/math/sage/sage-src.nix
@@ -136,6 +136,13 @@ stdenv.mkDerivation rec {
       url = "https://git.sagemath.org/sage.git/patch?id2=8.4.beta0&id=8bef4fd2876a61969b516fe4eb3b8ad7cc076c5e";
       sha256 = "00p3hfsfn3w2vxgd9fjd23mz7xfxjfravf8ysjxkyd657jbkpjmk";
     })
+
+    # https://trac.sagemath.org/ticket/26117
+    (fetchpatch {
+      name = "sympy-1.2.patch";
+      url = "https://git.sagemath.org/sage.git/patch?id2=8.4.beta2&id=d94a0a3a3fb4aec05a6f4d95166d90c284f05c36";
+      sha256 = "0an2xl1pp3jg36kgg2m1vb7sns7rprk1h3d0qy1gxwdab6i7qnvi";
+    })
   ];
 
   patches = nixPatches ++ packageUpgradePatches ++ [
diff --git a/pkgs/applications/video/clipgrab/default.nix b/pkgs/applications/video/clipgrab/default.nix
index 031202ad646..96e0bb04031 100644
--- a/pkgs/applications/video/clipgrab/default.nix
+++ b/pkgs/applications/video/clipgrab/default.nix
@@ -2,10 +2,10 @@
 
 stdenv.mkDerivation rec {
   name = "clipgrab-${version}";
-  version = "3.6.8";
+  version = "3.6.9";
 
   src = fetchurl {
-    sha256 = "0agp97g79mlqcwfz2xk5rdxw4kx0hm92xikdspbpxlfji1mkh10p";
+    sha256 = "16r0h286vqw1bns29sx5x2919pj3y8gxf1k7dpf9xrz0vm2zrc3v";
     # The .tar.bz2 "Download" link is a binary blob, the source is the .tar.gz!
     url = "https://download.clipgrab.org/${name}.tar.gz";
   };
diff --git a/pkgs/development/compilers/elm/default.nix b/pkgs/development/compilers/elm/default.nix
index 6a8d5f11b75..93deb4a90af 100644
--- a/pkgs/development/compilers/elm/default.nix
+++ b/pkgs/development/compilers/elm/default.nix
@@ -1,14 +1,56 @@
-{ lib, stdenv, buildEnv, haskell, nodejs, fetchurl, makeWrapper }:
+{ lib, stdenv, buildEnv, haskell, nodejs, fetchurl, makeWrapper, git }:
 
 # To update:
-# 1) Update versions in ./update-elm.rb and run it.
-# 2) Checkout elm-reactor and run `elm-package install -y` inside.
-# 3) Run ./elm2nix.rb in elm-reactor's directory.
-# 4) Move the resulting 'package.nix' to 'packages/elm-reactor-elm.nix'.
+
+# 1) Modify ./update.sh and run it
+
+# 2) to generate versions.dat:
+# 2.1) git clone https://github.com/elm/compiler.git
+# 2.2) cd compiler
+# 2.3) cabal2nix --shell . | sed 's/"default",/"ghc822",/' > shell.nix
+# 2.4) nix-shell
+# 2.5) mkdir .elm
+# 2.6) export ELM_HOME=$(pwd)/.elm
+# 2.7) cabal build
+# 2.8) cp .elm/0.19.0/package/versions.dat ...
+
+# 3) generate a template for elm-elm.nix with:
+# (
+#   echo "{";
+#   jq '.dependencies | .direct, .indirect | to_entries | .[] | { (.key) : { version : .value, sha256:  "" } } ' \
+#   < ui/browser/elm.json \
+#   | sed 's/:/ =/' \
+#   | sed 's/^[{}]//' \
+#   | sed -E 's/(["}]),?$/\1;/' \
+#   | sed -E 's/"(version|sha256)"/\1/' \
+#   | grep -v '^$';
+#   echo "}"
+# )
+#
+# ... then fill in the sha256s
+
+# Notes:
+
+# the elm binary embeds a piece of pre-compiled elm code, used by 'elm
+# reactor'. this means that the build process for 'elm' effectively
+# executes 'elm make'. that in turn expects to retrieve the elm
+# dependencies of that code (elm/core, etc.) from
+# package.elm-lang.org, as well as a cached bit of metadata
+# (versions.dat).
+
+# the makeDotElm function lets us retrieve these dependencies in the
+# standard nix way. we have to copy them in (rather than symlink) and
+# make them writable because the elm compiler writes other .dat files
+# alongside the source code. versions.dat was produced during an
+# impure build of this same code; the build complains that it can't
+# update this cache, but continues past that warning.
+
+# finally, we set ELM_HOME to point to these pre-fetched artifacts so
+# that the default of ~/.elm isn't used.
 
 let
-  makeElmStuff = deps:
-    let json = builtins.toJSON (lib.mapAttrs (name: info: info.version) deps);
+  makeDotElm = ver: deps:
+    let versionsDat = ./versions.dat;
         cmds = lib.mapAttrsToList (name: info: let
                  pkg = stdenv.mkDerivation {
 
@@ -29,80 +71,61 @@ let
 
                  };
                in ''
-                 mkdir -p elm-stuff/packages/${name}
-                 ln -s ${pkg} elm-stuff/packages/${name}/${info.version}
+                 mkdir -p .elm/${ver}/package/${name}
+                 cp -R ${pkg} .elm/${ver}/package/${name}/${info.version}
                '') deps;
-    in ''
-      export HOME=/tmp
-      mkdir elm-stuff
-      cat > elm-stuff/exact-dependencies.json <<EOF
-      ${json}
-      EOF
-    '' + lib.concatStrings cmds;
+    in (lib.concatStrings cmds) + ''
+      mkdir -p .elm/${ver}/package;
+      cp ${versionsDat} .elm/${ver}/package/versions.dat;
+      chmod -R +w .elm
+    '';
 
-  hsPkgs = haskell.packages.ghc802.override {
-    overrides = self: super:
-      let hlib = haskell.lib;
-          elmRelease = import ./packages/release.nix { inherit (self) callPackage; };
-          elmPkgs' = elmRelease.packages;
-          elmPkgs = elmPkgs' // {
-
-            elm-reactor = hlib.overrideCabal elmPkgs'.elm-reactor (drv: {
-              buildTools = drv.buildTools or [] ++ [ self.elm-make ];
-              preConfigure = makeElmStuff (import ./packages/elm-reactor-elm.nix);
-            });
-
-            elm-repl = hlib.overrideCabal elmPkgs'.elm-repl (drv: {
-              doCheck = false;
+  hsPkgs = haskell.packages.ghc822.override {
+    overrides = self: super: with haskell.lib;
+      let elmPkgs = {
+            elm = overrideCabal (self.callPackage ./packages/elm.nix { }) (drv: {
+              # sadly with parallelism most of the time breaks compilation
+              enableParallelBuilding = false;
+              preConfigure = ''
+                export ELM_HOME=`pwd`/.elm
+              '' + (makeDotElm "0.19.0" (import ./packages/elm-elm.nix));
               buildTools = drv.buildTools or [] ++ [ makeWrapper ];
-              postInstall =
-                let bins = lib.makeBinPath [ nodejs self.elm-make ];
-                in ''
-                  wrapProgram $out/bin/elm-repl \
-                    --prefix PATH ':' ${bins}
-                '';
+              postInstall = ''
+                wrapProgram $out/bin/elm \
+                  --prefix PATH ':' ${lib.makeBinPath [ nodejs ]}
+              '';
             });
 
+
+
             /*
             This is not a core Elm package, and it's hosted on GitHub.
             To update, run:
 
                 cabal2nix --jailbreak --revision refs/tags/foo http://github.com/avh4/elm-format > packages/elm-format.nix
 
-            where foo is a tag for a new version, for example "0.3.1-alpha".
+            where foo is a tag for a new version, for example "0.8.0".
             */
-            elm-format = self.callPackage ./packages/elm-format.nix { };
-            elm-interface-to-json = self.callPackage ./packages/elm-interface-to-json.nix {
-              aeson-pretty = self.aeson-pretty_0_7_2;
-              either = hlib.overrideCabal self.either (drv :{
-                jailbreak = true;
-                version = "4.4.1.1";
-                sha256 = "1lrlwqqnm6ibfcydlv5qvvssw7bm0c6yypy0rayjzv1znq7wp1xh";
-                libraryHaskellDepends = drv.libraryHaskellDepends or [] ++ [
-                  self.exceptions self.free self.mmorph self.monad-control
-                  self.MonadRandom self.profunctors self.transformers
-                  self.transformers-base
-                ];
-              });
-            };
+            elm-format = overrideCabal (self.callPackage ./packages/elm-format.nix {  }) (drv: {
+              # https://github.com/avh4/elm-format/issues/529
+              patchPhase = ''
+                cat >Setup.hs <<EOF
+                import Distribution.Simple
+                main = defaultMain
+                EOF
+
+                sed -i '/Build_elm_format/d' elm-format.cabal
+                sed -i 's/Build_elm_format.gitDescribe/""/' src/ElmFormat/Version.hs
+                sed -i '/Build_elm_format/d' src/ElmFormat/Version.hs
+              '';
+            });
           };
       in elmPkgs // {
         inherit elmPkgs;
-        elmVersion = elmRelease.version;
-        # https://github.com/elm-lang/elm-compiler/issues/1566
-        indents = hlib.overrideCabal super.indents (drv: {
-          version = "0.3.3";
-          #test dep tasty has a version mismatch
-          doCheck = false;
-          sha256 = "16lz21bp9j14xilnq8yym22p3saxvc9fsgfcf5awn2a6i6n527xn";
-          libraryHaskellDepends = drv.libraryHaskellDepends ++ [super.concatenative];
-        });
+        elmVersion = elmPkgs.elm.version;
+
+        # Needed for elm-format
+        indents = self.callPackage ./packages/indents.nix {};
       };
   };
-in hsPkgs.elmPkgs // {
-  elm = lib.hiPrio (buildEnv {
-    name = "elm-${hsPkgs.elmVersion}";
-    paths = lib.mapAttrsToList (name: pkg: pkg) hsPkgs.elmPkgs;
-    pathsToLink = [ "/bin" ];
-  });
-}
+in hsPkgs.elmPkgs
diff --git a/pkgs/development/compilers/elm/packages/elm-compiler.nix b/pkgs/development/compilers/elm/packages/elm-compiler.nix
deleted file mode 100644
index 1242f556838..00000000000
--- a/pkgs/development/compilers/elm/packages/elm-compiler.nix
+++ /dev/null
@@ -1,41 +0,0 @@
-{ mkDerivation, aeson, aeson-pretty_0_7_2, ansi-terminal, ansi-wl-pprint
-, base, binary, bytestring, containers, directory, edit-distance
-, fetchgit, filemanip, filepath, HUnit, indents
-, language-ecmascript, language-glsl, mtl, parsec, pretty, process
-, QuickCheck, stdenv, test-framework, test-framework-hunit
-, test-framework-quickcheck2, text, union-find
-}:
-mkDerivation {
-  pname = "elm-compiler";
-  version = "0.18";
-  src = fetchgit {
-    url = "https://github.com/elm-lang/elm-compiler";
-    sha256 = "09fmrbfpc1kzc3p9h79w57b9qjhajdswc4jfm9gyjw95vsiwasgh";
-    rev = "eb97f2a5dd5421c708a91b71442e69d02453cc80";
-  };
-  isLibrary = true;
-  isExecutable = true;
-  libraryHaskellDepends = [
-    aeson aeson-pretty_0_7_2 ansi-terminal ansi-wl-pprint base binary
-    bytestring containers directory edit-distance filepath indents
-    language-ecmascript language-glsl mtl parsec pretty process text
-    union-find
-  ];
-  executableHaskellDepends = [
-    aeson base binary directory filepath process text
-  ];
-  testHaskellDepends = [
-    aeson aeson-pretty_0_7_2 ansi-terminal ansi-wl-pprint base binary
-    bytestring containers directory edit-distance filemanip filepath
-    HUnit indents language-ecmascript language-glsl mtl parsec pretty
-    process QuickCheck test-framework test-framework-hunit
-    test-framework-quickcheck2 text union-find
-  ];
-  jailbreak = true;
-  homepage = http://elm-lang.org;
-  description = "Values to help with elm-package, elm-make, and elm-lang.org.";
-  license = stdenv.lib.licenses.bsd3;
-  # added manually since tests are not passing
-  # https://travis-ci.org/elm-lang/elm-compiler/builds/176845852
-  doCheck = false;
-}
diff --git a/pkgs/development/compilers/elm/packages/elm-elm.nix b/pkgs/development/compilers/elm/packages/elm-elm.nix
new file mode 100644
index 00000000000..a38e21daa06
--- /dev/null
+++ b/pkgs/development/compilers/elm/packages/elm-elm.nix
@@ -0,0 +1,50 @@
+{
+  "elm/browser" = {
+    version = "1.0.0";
+    sha256 = "1apmvyax93nvmagwj00y16zx10kfv640cxpi64xgqbgy7d2wphy4";
+  };
+  "elm/core" = {
+    version = "1.0.0";
+    sha256 = "10kr86h4v5h4p0586q406a5wbl8xvr1jyrf6097zp2wb8sv21ylw";
+  };
+  "elm/html" = {
+    version = "1.0.0";
+    sha256 = "1n3gpzmpqqdsldys4ipgyl1zacn0kbpc3g4v3hdpiyfjlgh8bf3k";
+  };
+  "elm/http" = {
+    version = "1.0.0";
+    sha256 = "1igmm89ialzrjib1j8xagkxalq1x2gj4l0hfxcd66mpwmvg7psl8";
+  };
+  "elm/json" = {
+    version = "1.0.0";
+    sha256 = "1g0hafkqf2q633r7ir9wxpb1lnlzskhpsyi0h5bkzj0gl072zfnb";
+  };
+  "elm/project-metadata-utils" = {
+    version = "1.0.0";
+    sha256 = "1d4rd4grrnbdvj9gf00h7dr6hbkjzawgkzpizfrkp1z1pyr3mvq9";
+  };
+  "elm/svg" = {
+    version = "1.0.0";
+    sha256 = "08x0v8p9wm699jjmsnbq69pxv3jh60j4f6fg7y6hyr7xxj85y390";
+  };
+  "elm-explorations/markdown" = {
+    version = "1.0.0";
+    sha256 = "0k3110ixa4wwf3vkkdplagwah9ypr965qxr1y147rnsc1xsxmr6y";
+  };
+  "elm/parser" = {
+    version = "1.0.0";
+    sha256 = "0k4zlq30lrvawqvzwbvsl0hrmwf9s832mb41z7fdspm4549dj7wc";
+  };
+  "elm/time" = {
+    version = "1.0.0";
+    sha256 = "0vch7i86vn0x8b850w1p69vplll1bnbkp8s383z7pinyg94cm2z1";
+  };
+  "elm/url" = {
+    version = "1.0.0";
+    sha256 = "0av8x5syid40sgpl5vd7pry2rq0q4pga28b4yykn9gd9v12rs3l4";
+  };
+  "elm/virtual-dom" = {
+    version = "1.0.0";
+    sha256 = "0hm8g92h7z39km325dlnhk8n00nlyjkqp3r3jppr37k2k13md6aq";
+  };
+}
diff --git a/pkgs/development/compilers/elm/packages/elm-format.nix b/pkgs/development/compilers/elm/packages/elm-format.nix
index 56db835ac10..86d99abab5a 100644
--- a/pkgs/development/compilers/elm/packages/elm-format.nix
+++ b/pkgs/development/compilers/elm/packages/elm-format.nix
@@ -6,14 +6,12 @@
 }:
 mkDerivation {
   pname = "elm-format";
-  version = "0.7.0";
+  version = "0.8.0";
   src = fetchgit {
     url = "http://github.com/avh4/elm-format";
-    sha256 = "1snl2lrrzdwgzi68agi3sdw84aslj04pzzxpm1mam9ic6dzhn3jf";
-    rev = "da4b415c6a2b7e77b7d9f00beca3e45230e603fb";
+    sha256 = "1w79xvsyq98vfz3jb4sv8433vdh6pcg8s7yh54lcxzr1p08yhsb6";
+    rev = "f19ac28046d7e83ff95f845849c033cc616f1bd6";
   };
-
-  doHaddock = false;
   isLibrary = true;
   isExecutable = true;
   setupHaskellDepends = [ base Cabal directory filepath process ];
@@ -27,15 +25,10 @@ mkDerivation {
     base cmark containers HUnit mtl parsec QuickCheck quickcheck-io
     split tasty tasty-golden tasty-hunit tasty-quickcheck text
   ];
+  doHaddock = false;
   jailbreak = true;
-  postInstall = ''
-    ln -s $out/bin/elm-format-0.18 $out/bin/elm-format
-  '';
-  postPatch = ''
-    sed -i "s|desc <-.*||" ./Setup.hs
-    sed -i "s|gitDescribe = .*|gitDescribe = \\\\\"da4b415c\\\\\"\"|" ./Setup.hs
-  '';
-  homepage = http://elm-lang.org;
+  doCheck = false;
+  homepage = "http://elm-lang.org";
   description = "A source code formatter for Elm";
   license = stdenv.lib.licenses.bsd3;
 }
diff --git a/pkgs/development/compilers/elm/packages/elm-interface-to-json.nix b/pkgs/development/compilers/elm/packages/elm-interface-to-json.nix
deleted file mode 100644
index 3f797b7a236..00000000000
--- a/pkgs/development/compilers/elm/packages/elm-interface-to-json.nix
+++ /dev/null
@@ -1,24 +0,0 @@
-{ mkDerivation, aeson, aeson-pretty, base, binary, bytestring
-, concatenative, containers, directory, either, elm-compiler
-, filemanip, filepath, indents, optparse-applicative, parsec
-, stdenv, text, transformers, fetchgit
-}:
-mkDerivation {
-  pname = "elm-interface-to-json";
-  version = "0.1.0.0";
-  src = fetchgit {
-    url = "https://github.com/stoeffel/elm-interface-to-json";
-    sha256 = "1izc78w91m7nrc9i2b3lgy3kyjsy4d5mkkblx96ws0bp3dpm5f9k";
-    rev = "9884c1c997a55f11cf7c3d99a8afa72cf2e97323";
-  };
-  isLibrary = false;
-  isExecutable = true;
-  jailbreak = true;
-  executableHaskellDepends = [
-    aeson aeson-pretty base binary bytestring concatenative containers
-    directory either elm-compiler filemanip filepath indents
-    optparse-applicative parsec text transformers
-  ];
-  homepage = "https://github.com/githubuser/elm-interface-to-json#readme";
-  license = stdenv.lib.licenses.bsd3;
-}
diff --git a/pkgs/development/compilers/elm/packages/elm-make.nix b/pkgs/development/compilers/elm/packages/elm-make.nix
deleted file mode 100644
index 98e57ac9b7c..00000000000
--- a/pkgs/development/compilers/elm/packages/elm-make.nix
+++ /dev/null
@@ -1,26 +0,0 @@
-{ mkDerivation, aeson, ansi-terminal, ansi-wl-pprint, base, binary
-, blaze-html, blaze-markup, bytestring, containers, directory
-, elm-compiler, elm-package, fetchgit, filepath, mtl
-, optparse-applicative, raw-strings-qq, stdenv, text, time
-}:
-mkDerivation {
-  pname = "elm-make";
-  version = "0.18";
-  src = fetchgit {
-    url = "https://github.com/elm-lang/elm-make";
-    sha256 = "1yq4w4yqignlc2si5ns53pmz0a99gix5d2qgi6x7finf7i6sxyw2";
-    rev = "1a554833a70694ab142b9179bfac996143f68d9e";
-  };
-  isLibrary = false;
-  isExecutable = true;
-  executableHaskellDepends = [
-    aeson ansi-terminal ansi-wl-pprint base binary blaze-html
-    blaze-markup bytestring containers directory elm-compiler
-    elm-package filepath mtl optparse-applicative raw-strings-qq text
-    time
-  ];
-  jailbreak = true;
-  homepage = http://elm-lang.org;
-  description = "A build tool for Elm projects";
-  license = stdenv.lib.licenses.bsd3;
-}
diff --git a/pkgs/development/compilers/elm/packages/elm-package.nix b/pkgs/development/compilers/elm/packages/elm-package.nix
deleted file mode 100644
index 49eddb58a14..00000000000
--- a/pkgs/development/compilers/elm/packages/elm-package.nix
+++ /dev/null
@@ -1,39 +0,0 @@
-{ mkDerivation, aeson, aeson-pretty_0_7_2, ansi-wl-pprint, base, binary
-, bytestring, containers, directory, edit-distance, elm-compiler
-, fetchgit, fetchurl, filepath, HTTP, http-client, http-client-tls
-, http-types, mtl, network, optparse-applicative, parallel-io
-, pretty, stdenv, text, time, unordered-containers, vector
-, zip-archive
-}:
-mkDerivation {
-  pname = "elm-package";
-  version = "0.18";
-  src = fetchgit {
-    url = "https://github.com/elm-lang/elm-package";
-    sha256 = "19krnkjvfk02gmmic5h5i1i0lw7s30927bnd5g57cj8nqbigysv7";
-    rev = "8bd150314bacab5b6fc451927aa01deec2276fbf";
-  };
-  patches = fetchurl {
-    url = https://github.com/jerith666/elm-package/commit/40bab60c2fbff70812cc24cdd97f5e09db3844ad.patch;
-    sha256 = "0j6pi6cv3h9s6vz68bh0c73fysvk83yhhk56kgshvnrmnpcb3jib";
-  };
-  isLibrary = true;
-  isExecutable = true;
-  libraryHaskellDepends = [
-    aeson aeson-pretty_0_7_2 ansi-wl-pprint base binary bytestring containers
-    directory edit-distance elm-compiler filepath HTTP http-client
-    http-client-tls http-types mtl network parallel-io text time
-    unordered-containers vector zip-archive
-  ];
-  executableHaskellDepends = [
-    aeson aeson-pretty_0_7_2 ansi-wl-pprint base binary bytestring containers
-    directory edit-distance elm-compiler filepath HTTP http-client
-    http-client-tls http-types mtl network optparse-applicative
-    parallel-io pretty text time unordered-containers vector
-    zip-archive
-  ];
-  jailbreak = true;
-  homepage = https://github.com/elm-lang/elm-package;
-  description = "Package manager for Elm libraries";
-  license = stdenv.lib.licenses.bsd3;
-}
diff --git a/pkgs/development/compilers/elm/packages/elm-reactor-elm.nix b/pkgs/development/compilers/elm/packages/elm-reactor-elm.nix
deleted file mode 100644
index 90c8956323b..00000000000
--- a/pkgs/development/compilers/elm/packages/elm-reactor-elm.nix
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-  "elm-lang/virtual-dom" = {
-    version = "2.0.1";
-    sha256 = "19nfjx072m7a7bx8flc50vbmiww172jmscyq9x91cr2kby5hvbw3";
-  };
-  "evancz/elm-markdown" = {
-    version = "3.0.1";
-    sha256 = "144lzpcapf2mhqiz90mkllmm4skrcs0iha1daps42qn3xps7hvmj";
-  };
-  "elm-lang/html" = {
-    version = "2.0.0";
-    sha256 = "05sqjd5n8jnq4lv5v0ipcg98b8im1isnnl4wns1zzn4w5nbrjjzi";
-  };
-  "elm-lang/svg" = {
-    version = "2.0.0";
-    sha256 = "1c7p967n1yhynravqwgh80vprwz7r2r1n0x3icn5wzk9iaqs069l";
-  };
-  "elm-lang/core" = {
-    version = "5.0.0";
-    sha256 = "0gqyc09bh43pi7r2cizyjm5y0zpgarv3is17dl325qvxb9s1y2gn";
-  };
-}
diff --git a/pkgs/development/compilers/elm/packages/elm-reactor.nix b/pkgs/development/compilers/elm/packages/elm-reactor.nix
deleted file mode 100644
index 41611b3cdd0..00000000000
--- a/pkgs/development/compilers/elm/packages/elm-reactor.nix
+++ /dev/null
@@ -1,28 +0,0 @@
-{ mkDerivation, aeson, base, blaze-html, blaze-markup, bytestring
-, cmdargs, containers, directory, elm-compiler, elm-package
-, fetchgit, file-embed, filepath, fsnotify, mtl, process, snap-core
-, snap-server, stdenv, template-haskell, text, time, transformers
-, unordered-containers, utf8-string, websockets, websockets-snap
-}:
-mkDerivation {
-  pname = "elm-reactor";
-  version = "0.18";
-  src = fetchgit {
-    url = "https://github.com/elm-lang/elm-reactor";
-    sha256 = "0lpidsckyfcr8d6bln735d98dx7ga7j1vyssw0qsv8ijj18gxx65";
-    rev = "c519d4ec0aaf2f043a416fe858346b0181eca516";
-  };
-  isLibrary = false;
-  isExecutable = true;
-  executableHaskellDepends = [
-    aeson base blaze-html blaze-markup bytestring cmdargs containers
-    directory elm-compiler elm-package file-embed filepath fsnotify mtl
-    process snap-core snap-server template-haskell text time
-    transformers unordered-containers utf8-string websockets
-    websockets-snap
-  ];
-  jailbreak = true;
-  homepage = http://elm-lang.org;
-  description = "Interactive development tool for Elm programs";
-  license = stdenv.lib.licenses.bsd3;
-}
diff --git a/pkgs/development/compilers/elm/packages/elm-repl.nix b/pkgs/development/compilers/elm/packages/elm-repl.nix
deleted file mode 100644
index 8c168dedc75..00000000000
--- a/pkgs/development/compilers/elm/packages/elm-repl.nix
+++ /dev/null
@@ -1,30 +0,0 @@
-{ mkDerivation, base, binary, bytestring, bytestring-trie, cmdargs
-, containers, directory, elm-compiler, elm-package, fetchgit
-, filepath, haskeline, HUnit, mtl, parsec, QuickCheck, stdenv
-, test-framework, test-framework-hunit, test-framework-quickcheck2
-, text
-}:
-mkDerivation {
-  pname = "elm-repl";
-  version = "0.18";
-  src = fetchgit {
-    url = "https://github.com/elm-lang/elm-repl";
-    sha256 = "112fzykils4lqz4pc44q4mwvxg0px0zfwx511bfvblrxkwwqlfb5";
-    rev = "85f0bcfc28ea6c8a99a360d55c21ff25a556f9fe";
-  };
-  isLibrary = false;
-  isExecutable = true;
-  executableHaskellDepends = [
-    base binary bytestring bytestring-trie cmdargs containers directory
-    elm-compiler elm-package filepath haskeline mtl parsec text
-  ];
-  testHaskellDepends = [
-    base bytestring bytestring-trie cmdargs directory elm-compiler
-    elm-package filepath haskeline HUnit mtl parsec QuickCheck
-    test-framework test-framework-hunit test-framework-quickcheck2
-  ];
-  jailbreak = true;
-  homepage = https://github.com/elm-lang/elm-repl;
-  description = "a REPL for Elm";
-  license = stdenv.lib.licenses.bsd3;
-}
diff --git a/pkgs/development/compilers/elm/packages/elm.nix b/pkgs/development/compilers/elm/packages/elm.nix
new file mode 100644
index 00000000000..1097c8a1e19
--- /dev/null
+++ b/pkgs/development/compilers/elm/packages/elm.nix
@@ -0,0 +1,30 @@
+{ mkDerivation, ansi-terminal, ansi-wl-pprint, base, binary
+, bytestring, containers, directory, edit-distance, fetchgit
+, file-embed, filepath, ghc-prim, haskeline, HTTP, http-client
+, http-client-tls, http-types, language-glsl, logict, mtl, network
+, parsec, process, raw-strings-qq, scientific, SHA, snap-core
+, snap-server, stdenv, template-haskell, text, time
+, unordered-containers, utf8-string, vector, zip-archive
+}:
+mkDerivation {
+  pname = "elm";
+  version = "0.19.0";
+  src = fetchgit {
+    url = "https://github.com/elm/compiler";
+    sha256 = "0s93z9vr0vp5w894ghc5s34nsq09sg1msf59zfiba87sid5vgjqy";
+    rev = "32059a289d27e303fa1665e9ada0a52eb688f302";
+  };
+  isLibrary = false;
+  isExecutable = true;
+  executableHaskellDepends = [
+    ansi-terminal ansi-wl-pprint base binary bytestring containers
+    directory edit-distance file-embed filepath ghc-prim haskeline HTTP
+    http-client http-client-tls http-types language-glsl logict mtl
+    network parsec process raw-strings-qq scientific SHA snap-core
+    snap-server template-haskell text time unordered-containers
+    utf8-string vector zip-archive
+  ];
+  homepage = "http://elm-lang.org";
+  description = "The `elm` command line interface";
+  license = stdenv.lib.licenses.bsd3;
+}
diff --git a/pkgs/development/compilers/elm/packages/indents.nix b/pkgs/development/compilers/elm/packages/indents.nix
new file mode 100644
index 00000000000..6bf7fa7890e
--- /dev/null
+++ b/pkgs/development/compilers/elm/packages/indents.nix
@@ -0,0 +1,11 @@
+{ mkDerivation, base, concatenative, mtl, parsec, stdenv }:
+mkDerivation {
+  pname = "indents";
+  version = "0.3.3";
+  sha256 = "b61f51ac894609cb5571cc3ded12db5de97185a8de236c69ec24c87457109f9a";
+  libraryHaskellDepends = [ base concatenative mtl parsec ];
+  doCheck = false;
+  homepage = "http://patch-tag.com/r/salazar/indents";
+  description = "indentation sensitive parser-combinators for parsec";
+  license = stdenv.lib.licenses.bsd3;
+}
diff --git a/pkgs/development/compilers/elm/packages/release.nix b/pkgs/development/compilers/elm/packages/release.nix
deleted file mode 100644
index fd4e08fff09..00000000000
--- a/pkgs/development/compilers/elm/packages/release.nix
+++ /dev/null
@@ -1,13 +0,0 @@
-# This file is auto-generated by ./update-elm.rb.
-# Please, do not modify it by hand!
-{ callPackage }:
-{
-  version = "0.18.0";
-  packages = {
-    elm-compiler = callPackage ./elm-compiler.nix { };
-    elm-package = callPackage ./elm-package.nix { };
-    elm-make = callPackage ./elm-make.nix { };
-    elm-reactor = callPackage ./elm-reactor.nix { };
-    elm-repl = callPackage ./elm-repl.nix { };
-  };
-}
diff --git a/pkgs/development/compilers/elm/update-elm.rb b/pkgs/development/compilers/elm/update-elm.rb
deleted file mode 100755
index 5169ff3fd29..00000000000
--- a/pkgs/development/compilers/elm/update-elm.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env ruby
-
-# Take those from https://github.com/elm-lang/elm-platform/blob/master/installers/BuildFromSource.hs
-$elm_version = "0.18.0"
-$elm_packages = { "elm-compiler" => "0.18.0",
-                  "elm-package" => "0.18.0",
-                  "elm-make" => "0.18.0",
-                  "elm-reactor" => "0.18.0",
-                  "elm-repl" => "0.18.0"
-                }
-
-for pkg, ver in $elm_packages
-  system "cabal2nix https://github.com/elm-lang/#{pkg} --revision refs/tags/#{ver} --jailbreak > packages/#{pkg}.nix"
-end
-
-File.open("packages/release.nix", 'w') do |file|
-  file.puts "# This file is auto-generated by ./update-elm.rb."
-  file.puts "# Please, do not modify it by hand!"
-  file.puts "{ callPackage }:"
-  file.puts "{"
-  file.puts "  version = \"#{$elm_version}\";"
-  file.puts "  packages = {"
-  for pkg, ver in $elm_packages
-    file.puts "    #{pkg} = callPackage ./#{pkg}.nix { };"
-  end
-  file.puts "  };"
-  file.puts "}"
-end
diff --git a/pkgs/development/compilers/elm/update.sh b/pkgs/development/compilers/elm/update.sh
new file mode 100755
index 00000000000..02e5bdc9b58
--- /dev/null
+++ b/pkgs/development/compilers/elm/update.sh
@@ -0,0 +1,3 @@
+cabal2nix https://github.com/elm/compiler --revision  32059a289d27e303fa1665e9ada0a52eb688f302 > packages/elm.nix
+cabal2nix --no-check cabal://indents-0.3.3 > packages/indents.nix
+cabal2nix --no-haddock --no-check --jailbreak --revision refs/tags/0.8.0 http://github.com/avh4/elm-format > packages/elm-format.nix
diff --git a/pkgs/development/compilers/elm/versions.dat b/pkgs/development/compilers/elm/versions.dat
new file mode 100644
index 00000000000..824ab383057
Binary files /dev/null and b/pkgs/development/compilers/elm/versions.dat differ
diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 61c2da2b419..ef55272d6e9 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -672,6 +672,9 @@ self: super: {
   # https://github.com/bos/bloomfilter/issues/7
   bloomfilter = appendPatch super.bloomfilter ./patches/bloomfilter-fix-on-32bit.patch;
 
+  # https://github.com/ashutoshrishi/hunspell-hs/pull/3
+  hunspell-hs = addPkgconfigDepend (dontCheck (appendPatch super.hunspell-hs ./patches/hunspell.patch)) pkgs.hunspell;
+
   # https://github.com/pxqr/base32-bytestring/issues/4
   base32-bytestring = dontCheck super.base32-bytestring;
 
diff --git a/pkgs/development/haskell-modules/generic-builder.nix b/pkgs/development/haskell-modules/generic-builder.nix
index 37916c0bba2..0786238040b 100644
--- a/pkgs/development/haskell-modules/generic-builder.nix
+++ b/pkgs/development/haskell-modules/generic-builder.nix
@@ -46,6 +46,10 @@ in
 , isExecutable ? false, isLibrary ? !isExecutable
 , jailbreak ? false
 , license
+# We cannot enable -j<n> parallelism for libraries because GHC is far more
+# likely to generate a non-determistic library ID in that case. Further
+# details are at <https://github.com/peti/ghc-library-id-bug>.
+, enableParallelBuilding ? (stdenv.lib.versionOlder "7.8" ghc.version && !isLibrary) || stdenv.lib.versionOlder "8.0.1" ghc.version
 , maintainers ? []
 , doCoverage ? false
 , doHaddock ? !(ghc.isHaLVM or false)
@@ -112,11 +116,6 @@ let
                      main = defaultMain
                    '';
 
-  # We cannot enable -j<n> parallelism for libraries because GHC is far more
-  # likely to generate a non-determistic library ID in that case. Further
-  # details are at <https://github.com/peti/ghc-library-id-bug>.
-  enableParallelBuilding = (versionOlder "7.8" ghc.version && !isLibrary) || versionOlder "8.0.1" ghc.version;
-
   crossCabalFlags = [
     "--with-ghc=${ghc.targetPrefix}ghc"
     "--with-ghc-pkg=${ghc.targetPrefix}ghc-pkg"
diff --git a/pkgs/development/haskell-modules/patches/hunspell.patch b/pkgs/development/haskell-modules/patches/hunspell.patch
new file mode 100644
index 00000000000..cc115029a7a
--- /dev/null
+++ b/pkgs/development/haskell-modules/patches/hunspell.patch
@@ -0,0 +1,30 @@
+diff -Naur hunspell-hs-0.1.0.0.orig/hunspell-hs.cabal hunspell-hs-0.1.0.0/hunspell-hs.cabal
+--- hunspell-hs-0.1.0.0.orig/hunspell-hs.cabal	2018-08-26 20:23:33.053763300 +0200
++++ hunspell-hs-0.1.0.0/hunspell-hs.cabal	2018-08-26 20:42:05.886074510 +0200
+@@ -37,7 +37,7 @@
+       base >=4.7 && <5
+     , stm
+   if os(linux)
+-    extra-libraries:
++    pkgconfig-depends:
+         hunspell
+   if os(darwin)
+     include-dirs:
+@@ -63,7 +63,7 @@
+     , hunspell-hs
+     , stm
+   if os(linux)
+-    extra-libraries:
++    pkgconfig-depends:
+         hunspell
+   if os(darwin)
+     include-dirs:
+@@ -88,7 +88,7 @@
+     , hunspell-hs
+     , stm
+   if os(linux)
+-    extra-libraries:
++    pkgconfig-depends:
+         hunspell
+   if os(darwin)
+     include-dirs:
diff --git a/pkgs/development/libraries/qt-5/modules/qtwebengine.nix b/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
index 622c0554967..aae15c62d73 100644
--- a/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
+++ b/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
@@ -134,7 +134,7 @@ EOF
     harfbuzz icu
 
     libevent
-  ] ++ optionals stdenv.hostPlatform.isArm [
+  ] ++ optionals (stdenv.hostPlatform.isAarch32 || stdenv.hostPlatform.isAarch64) [
     ffmpeg
   ] ++ optionals (!stdenv.isDarwin) [
     dbus zlib minizip snappy nss protobuf jsoncpp
diff --git a/pkgs/development/libraries/udunits/default.nix b/pkgs/development/libraries/udunits/default.nix
index b02ac885237..664bc29a72d 100644
--- a/pkgs/development/libraries/udunits/default.nix
+++ b/pkgs/development/libraries/udunits/default.nix
@@ -1,22 +1,26 @@
-{ stdenv, fetchurl,
-  bison, flex, expat, file
+{ stdenv, fetchFromGitHub, autoreconfHook,
+  texinfo, bison, flex, expat, file
 }:
 
 stdenv.mkDerivation rec {
-    name = "udunits-2.2.26";
-    src = fetchurl {
-        url = "ftp://ftp.unidata.ucar.edu/pub/udunits/${name}.tar.gz";
-        sha256 = "0v9mqw4drnkzkm57331ail6yvs9485jmi37s40lhvmf7r5lli3rn";
-    };
+  name = "udunits-${version}";
+  version = "2.2.27.6";
+  
+  src = fetchFromGitHub {
+    owner = "Unidata";
+    repo = "UDUNITS-2";
+    rev = "v${version}";
+    sha256 = "0621pac24c842dyipzaa59rh6pza9phdqi3snd4cq4pib0wjw6gm";
+  };
 
-    nativeBuildInputs = [ bison flex file ];
-    buildInputs = [ expat ];
+  nativeBuildInputs = [ autoreconfHook texinfo bison flex file ];
+  buildInputs = [ expat ];
 
-    meta = with stdenv.lib; {
-      homepage = https://www.unidata.ucar.edu/software/udunits/;
-      description = "A C-based package for the programatic handling of units of physical quantities";
-      license = licenses.bsdOriginal;
-      platforms = platforms.linux;
-      maintainers = with maintainers; [ pSub ];
-    };
+  meta = with stdenv.lib; {
+    homepage = https://www.unidata.ucar.edu/software/udunits/;
+    description = "A C-based package for the programatic handling of units of physical quantities";
+    license = licenses.bsdOriginal;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ pSub ];
+  };
 }
diff --git a/pkgs/development/python-modules/sympy/default.nix b/pkgs/development/python-modules/sympy/default.nix
index f41f2e7b4fa..fb702e046a4 100644
--- a/pkgs/development/python-modules/sympy/default.nix
+++ b/pkgs/development/python-modules/sympy/default.nix
@@ -8,44 +8,36 @@
 
 buildPythonPackage rec {
   pname = "sympy";
-  version = "1.1.1";
+  version = "1.2"; # Upgrades may break sage. Please test.
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "ac5b57691bc43919dcc21167660a57cc51797c28a4301a6144eff07b751216a4";
+    sha256 = "0pr2v7dl51ngch1cfs423qsb472l9ys1m8m7vrhhh99fsxqa0v18";
   };
 
   checkInputs = [ glibcLocales ];
 
   propagatedBuildInputs = [ mpmath ];
 
-  # Bunch of failures including transients.
+  # some tests fail: https://github.com/sympy/sympy/issues/15149
   doCheck = false;
 
+  patches = [
+    # to be fixed by https://github.com/sympy/sympy/pull/13476
+    (fetchpatch {
+      url = "https://git.sagemath.org/sage.git/plain/build/pkgs/sympy/patches/03_undeffun_sage.patch?id=07d6c37d18811e2b377a9689790a7c5e24da16ba";
+      sha256 = "1mh2va1rlgizgvx8yzqwgvbf5wvswarn511002b361mc8yy0bnhr";
+    })
+  ];
+
   preCheck = ''
     export LANG="en_US.UTF-8"
   '';
 
-  patches = [
-    # see https://trac.sagemath.org/ticket/20204 and https://github.com/sympy/sympy/issues/12825
-    # There is also an upstream patch for this, included in the next release (PR #128826).
-    # However that doesn't quite fix the issue yet. Apparently some changes by sage are required.
-    # TODO re-evaluate the change once a new sympy version is released (open a sage trac ticket about
-    # it).
-    (fetchpatch {
-      url = "https://git.sagemath.org/sage.git/plain/build/pkgs/sympy/patches/03_undeffun_sage.patch?id=07d6c37d18811e2b377a9689790a7c5e24da16ba";
-      sha256 = "1mh2va1rlgizgvx8yzqwgvbf5wvswarn511002b361mc8yy0bnhr";
-    })
-    (fetchpatch {
-      url = "https://github.com/sympy/sympy/pull/13276.patch";
-      sha256 = "1rz74b5c74vwh3pj9axxgh610i02l3555vvsvr4a15ya7siw7zxh";
-    })
-  ];
-
   meta = {
     description = "A Python library for symbolic mathematics";
     homepage    = http://www.sympy.org/;
     license     = lib.licenses.bsd3;
-    maintainers = with lib.maintainers; [ lovek323 ];
+    maintainers = with lib.maintainers; [ lovek323 timokau ];
   };
 }
diff --git a/pkgs/development/tools/build-managers/apache-maven/default.nix b/pkgs/development/tools/build-managers/apache-maven/default.nix
index 19ca5b9c078..455cd0a3fe8 100644
--- a/pkgs/development/tools/build-managers/apache-maven/default.nix
+++ b/pkgs/development/tools/build-managers/apache-maven/default.nix
@@ -2,7 +2,7 @@
 
 assert jdk != null;
 
-let version = "3.5.3"; in
+let version = "3.5.4"; in
 stdenv.mkDerivation rec {
   name = "apache-maven-${version}";
 
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "mirror://apache/maven/maven-3/${version}/binaries/${name}-bin.tar.gz";
-    sha256 = "0244mpziz4rw35x2cahsqlxpnygvi6qpll16g4kx87db7wvmcadm";
+    sha256 = "0kd1jzlz3b2kglppi85h7286vdwjdmm7avvpwgppgjv42g4v2l6f";
   };
 
   buildInputs = [ makeWrapper ];
diff --git a/pkgs/development/tools/misc/tokei/default.nix b/pkgs/development/tools/misc/tokei/default.nix
index 0059c10afe0..831a9ec6278 100644
--- a/pkgs/development/tools/misc/tokei/default.nix
+++ b/pkgs/development/tools/misc/tokei/default.nix
@@ -2,16 +2,16 @@
 
 rustPlatform.buildRustPackage rec {
   name = "tokei-${version}";
-  version = "7.0.3";
+  version = "8.0.0";
 
   src = fetchFromGitHub {
     owner = "Aaronepower";
     repo = "tokei";
     rev = "v${version}";
-    sha256 = "1n2ddwmyd414p6a98khq8y0bmljwcclw30wy5zy5b6z1l40yxcza";
+    sha256 = "1sfwmjlvjrd8r0ynnayw7g3514mfiky2j30byphaagdw4jkxbd7c";
   };
 
-  cargoSha256 = "0ngqk8nnw00s25y91vgsl37j26xl2ws75l3lvklf9gbd4bi01crv";
+  cargoSha256 = "0v29gych757h7vv5jsg7rpl705gpqn0ya8ai53582qd2cc6yz4c3";
 
   meta = with stdenv.lib; {
     description = "Count code, quickly";
diff --git a/pkgs/games/endgame-singularity/default.nix b/pkgs/games/endgame-singularity/default.nix
new file mode 100644
index 00000000000..8b259bad88d
--- /dev/null
+++ b/pkgs/games/endgame-singularity/default.nix
@@ -0,0 +1,56 @@
+{ stdenv, fetchurl, unzip, python2 }:
+
+python2.pkgs.buildPythonApplication rec {
+  pname = "endgame-singularity";
+  version = "0.30c";
+  format = "other";
+
+  srcs = [
+    (fetchurl {
+      url = "http://www.emhsoft.com/singularity/singularity-${version}-src.tar.gz";
+      sha256 = "13zjhf67gmla67nkfpxb01rxs8j9n4hs0s4n9lnnq4zgb709yxgl";
+    })
+    (fetchurl {
+      url = "http://www.emhsoft.com/singularity/endgame-singularity-music-007.zip";
+      sha256 = "0vf2qaf66jh56728pq1zbnw50yckjz6pf6c6qw6dl7vk60kkqnpb";
+    })
+  ];
+  sourceRoot = ".";
+
+  nativeBuildInputs = [ unzip ]; # The music is zipped
+  propagatedBuildInputs = with python2.pkgs; [ pygame numpy ];
+
+  # This is not an error: it needs both compilation rounds
+  buildPhase = ''
+    ${python2.interpreter} -m compileall "singularity-${version}"
+    ${python2.interpreter} -O -m compileall "singularity-${version}"
+  '';
+
+  installPhase = ''
+    install -Dm755 "singularity-${version}/singularity.py"  "$out/share/singularity.py"
+    install -Dm644 "singularity-${version}/singularity.pyo" "$out/share/singularity.pyo"
+    install -Dm644 "singularity-${version}/singularity.pyc" "$out/share/singularity.pyc"
+    cp -R "singularity-${version}/code" "singularity-${version}/data" "$out/share/"
+    cp -R "endgame-singularity-music-007" "$out/share/music"
+  '';
+
+  # Tell it where to find python libraries
+  # Also cd to the same directory as the code, since it uses relative paths
+  postFixup = ''
+    makeWrapper "${python2.interpreter}" "$out/bin/endgame-singularity" \
+          --set PYTHONPATH "$PYTHONPATH" \
+          --run "cd \"$out/share\"" \
+          --add-flags "$out/share/singularity.py"
+  '';
+
+  meta = {
+    homepage = http://www.emhsoft.com/singularity/;
+    description = "A simulation game about strong AI";
+    longDescription = ''
+      A simulation of a true AI. Go from computer to computer, pursued by the
+      entire world. Keep hidden, and you might have a chance
+    '';
+    license = stdenv.lib.licenses.gpl2;
+    maintainers = with stdenv.lib.maintainers; [ fgaz ];
+  };
+}
diff --git a/pkgs/os-specific/linux/iwd/default.nix b/pkgs/os-specific/linux/iwd/default.nix
index 833609f9fc2..79179f3fcbb 100644
--- a/pkgs/os-specific/linux/iwd/default.nix
+++ b/pkgs/os-specific/linux/iwd/default.nix
@@ -1,19 +1,19 @@
-{ stdenv, fetchgit, autoreconfHook, readline, python3Packages }:
+{ stdenv, fetchgit, autoreconfHook, coreutils, readline, python3Packages }:
 
 let
   ell = fetchgit {
      url = https://git.kernel.org/pub/scm/libs/ell/ell.git;
-     rev = "0.7";
-     sha256 = "095psnpfdy107z5qgi5zw0icqxa44dfx02lza3pd8j4ybj57n0l7";
+     rev = "0.9";
+     sha256 = "1kg7cx7ir8bvz33n624ncrq9r4fh7rg9z22fly894a3mk1imq22p";
   };
 in stdenv.mkDerivation rec {
   name = "iwd-${version}";
-  version = "0.4";
+  version = "0.7";
 
   src = fetchgit {
     url = https://git.kernel.org/pub/scm/network/wireless/iwd.git;
     rev = version;
-    sha256 = "1hib256jm70k6jlx486jrcv0iip52divbzhvb0f455yh28qfk0hs";
+    sha256 = "0q76fh6fcl7nxyjl8z2n4plp2qaxc1fqx575by6xqf1rnv4nk0ab";
   };
 
   nativeBuildInputs = [
@@ -35,8 +35,9 @@ in stdenv.mkDerivation rec {
 
   configureFlags = [
     "--with-dbus-datadir=$(out)/etc/"
-    "--localstatedir=/var"
-    "--disable-systemd-service"
+    "--with-dbus-busdir=$(out)/usr/share/dbus-1/system-services/"
+    "--with-systemd-unitdir=$(out)/lib/systemd/system/"
+    "--localstatedir=/var/"
   ];
 
   postUnpack = ''
@@ -55,6 +56,11 @@ in stdenv.mkDerivation rec {
     wrapPythonPrograms
   '';
 
+  postFixup = ''
+    substituteInPlace $out/usr/share/dbus-1/system-services/net.connman.iwd.service \
+                      --replace /bin/false ${coreutils}/bin/false
+  '';
+
   meta = with stdenv.lib; {
     homepage = https://git.kernel.org/pub/scm/network/wireless/iwd.git;
     description = "Wireless daemon for Linux";
diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index dd3186bc876..68b5e7c21a8 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -302,7 +302,7 @@ let
       CIFS_XATTR        = yes;
       CIFS_POSIX        = yes;
       CIFS_FSCACHE      = yes;
-      CIFS_STATS        = yes;
+      CIFS_STATS        = whenOlder "4.19" yes;
       CIFS_WEAK_PW_HASH = yes;
       CIFS_UPCALL       = yes;
       CIFS_ACL          = yes;
diff --git a/pkgs/os-specific/linux/kernel/linux-testing.nix b/pkgs/os-specific/linux/kernel/linux-testing.nix
index ec3baaf1e0a..c2feeceb072 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing.nix
@@ -1,13 +1,13 @@
 { stdenv, buildPackages, hostPlatform, fetchurl, perl, buildLinux, libelf, utillinux, ... } @ args:
 
 buildLinux (args // rec {
-  version = "4.18-rc8";
-  modDirVersion = "4.18.0-rc8";
-  extraMeta.branch = "4.18";
+  version = "4.19-rc1";
+  modDirVersion = "4.19.0-rc1";
+  extraMeta.branch = "4.19";
 
   src = fetchurl {
     url = "https://git.kernel.org/torvalds/t/linux-${version}.tar.gz";
-    sha256 = "0rqyqms63c15iwcwy40yqd9fvlvh3ah09gddv0wf45z9dqp7id1m";
+    sha256 = "14c9xg9sv0jrdri36das97vdbybi7vmcy59mj9wmgaz81cdk3wg5";
   };
 
   # Should the testing kernels ever be built on Hydra?
diff --git a/pkgs/servers/irc/charybdis/default.nix b/pkgs/servers/irc/charybdis/default.nix
index 332372830d6..dc053f4581c 100644
--- a/pkgs/servers/irc/charybdis/default.nix
+++ b/pkgs/servers/irc/charybdis/default.nix
@@ -1,13 +1,13 @@
 { stdenv, fetchFromGitHub, autoreconfHook, bison, flex, openssl, gnutls }:
 
 stdenv.mkDerivation rec {
-  name = "charybdis-4.1";
+  name = "charybdis-4.1.1";
 
   src = fetchFromGitHub {
     owner = "charybdis-ircd";
     repo = "charybdis";
     rev = name;
-    sha256 = "1j0fjf4rdiyvakxqa97x272xra64rzjhbj8faciyb4b13pyrdsmw";
+    sha256 = "0wvssc8b1xq6svcqrwxrpc1ga8ip0sksv73wwbk8na0pmysdvpg0";
   };
 
   postPatch = ''
diff --git a/pkgs/tools/X11/dex/default.nix b/pkgs/tools/X11/dex/default.nix
index d147ef4a70c..2a3a406135b 100644
--- a/pkgs/tools/X11/dex/default.nix
+++ b/pkgs/tools/X11/dex/default.nix
@@ -3,16 +3,17 @@
 stdenv.mkDerivation rec {
   program = "dex";
   name = "${program}-${version}";
-  version = "0.7";
+  version = "0.8.0";
 
   src = fetchFromGitHub {
     owner = "jceb";
     repo = program;
     rev = "v${version}";
-    sha256 = "041ms01snalapapaniabr92d8iim1qrxian626nharjmp2rd69v5";
+    sha256 = "13dkjd1373mbvskrdrp0865llr3zvdr90sc6a6jqswh3crmgmz4k";
   };
 
   propagatedBuildInputs = [ python3 ];
+  nativeBuildInputs = [ python3.pkgs.sphinx ];
   makeFlags = [ "PREFIX=$(out)" "VERSION=$(version)" ];
 
   meta = {
diff --git a/pkgs/tools/filesystems/ceph/default.nix b/pkgs/tools/filesystems/ceph/default.nix
index 0f712853f24..ef3e36ff627 100644
--- a/pkgs/tools/filesystems/ceph/default.nix
+++ b/pkgs/tools/filesystems/ceph/default.nix
@@ -1,12 +1,12 @@
 { callPackage, fetchgit, fetchpatch, ... } @ args:
 
 callPackage ./generic.nix (args // rec {
-  version = "12.2.2";
+  version = "12.2.7";
 
   src = fetchgit {
     url = "https://github.com/ceph/ceph.git";
     rev = "refs/tags/v${version}";
-    sha256 = "01anqxyffa8l2lzgyb0dj6fjicfjdx2cq9y1klh24x69gxwkdh00";
+    sha256 = "031nfw2g2fdpxxx39g862phgmdx68hj9r54axazandghfhc1bzrl";
   };
 
 })
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a13076e2313..3f48d65c11b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1456,6 +1456,8 @@ with pkgs;
 
   onboard = callPackage ../applications/misc/onboard { };
 
+  xkbd = callPackage ../applications/misc/xkbd { };
+
   optar = callPackage ../tools/graphics/optar {};
 
   patdiff = callPackage ../tools/misc/patdiff { };
@@ -1706,7 +1708,9 @@ with pkgs;
   nrg2iso = callPackage ../tools/cd-dvd/nrg2iso { };
 
   libceph = ceph.lib;
-  ceph = callPackage ../tools/filesystems/ceph { boost = boost165; };
+  ceph = callPackage ../tools/filesystems/ceph {
+    boost = boost166.override { enablePython = true; };
+  };
   ceph-dev = ceph;
 
   certmgr = callPackage ../tools/security/certmgr { };
@@ -19746,6 +19750,8 @@ with pkgs;
 
   EmptyEpsilon = callPackage ../games/empty-epsilon { };
 
+  endgame-singularity = callPackage ../games/endgame-singularity { };
+
   endless-sky = callPackage ../games/endless-sky { };
 
   enyo-doom = libsForQt5.callPackage ../games/enyo-doom { };