diff --git a/pkgs/applications/networking/browsers/firefox/7.0.nix b/pkgs/applications/networking/browsers/firefox/7.0.nix
index d9e94ead33a..c14386e5f9e 100644
--- a/pkgs/applications/networking/browsers/firefox/7.0.nix
+++ b/pkgs/applications/networking/browsers/firefox/7.0.nix
@@ -15,14 +15,14 @@ assert stdenv.gcc ? libc && stdenv.gcc.libc != null;
 
 rec {
 
-  firefoxVersion = "7.0b1";
+  firefoxVersion = "7.0";
   
   xulVersion = "7.0"; # this attribute is used by other packages
 
   
   src = fetchurl {
-    url = "http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/${firefoxVersion}-candidates/build1/source/firefox-${firefoxVersion}.source.tar.bz2";
-    sha256 = "0s8lv07nggdf8ad2yx7sgq1mfy1dvzir0f6x4km911yc9qyhwmwk";
+    url = "http://releases.mozilla.org/pub/mozilla.org/firefox/releases/${firefoxVersion}/source/firefox-${firefoxVersion}.source.tar.bz2";
+    sha256 = "1fpadlsdc8d739cz52dicn68v2ilv044hxivilgy9jnrazznrm42";
   };
   
   commonConfigureFlags =
diff --git a/pkgs/applications/networking/browsers/firefox/8.0.nix b/pkgs/applications/networking/browsers/firefox/8.0.nix
new file mode 100644
index 00000000000..f6807056529
--- /dev/null
+++ b/pkgs/applications/networking/browsers/firefox/8.0.nix
@@ -0,0 +1,180 @@
+{ stdenv, fetchurl, pkgconfig, gtk, pango, perl, python, zip, libIDL
+, libjpeg, libpng, zlib, cairo, dbus, dbus_glib, bzip2, xlibs
+, freetype, fontconfig, file, alsaLib, nspr, nss, libnotify
+, yasm, mesa, sqlite, unzip
+
+, # If you want the resulting program to call itself "Firefox" instead
+  # of "Shiretoko" or whatever, enable this option.  However, those
+  # binaries may not be distributed without permission from the
+  # Mozilla Foundation, see
+  # http://www.mozilla.org/foundation/trademarks/.
+  enableOfficialBranding ? false
+}:
+
+assert stdenv.gcc ? libc && stdenv.gcc.libc != null;
+
+rec {
+
+  firefoxVersion = "8.0b1";
+  
+  xulVersion = "8.0"; # this attribute is used by other packages
+
+  
+  src = fetchurl {
+    url = "http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/${firefoxVersion}-candidates/build1/source/firefox-${firefoxVersion}.source.tar.bz2";
+    sha256 = "1sdahpawgngvjh4cap2vdg00ngiwji5nkb40dh5kd393wa6c8mpm";
+  };
+  
+  commonConfigureFlags =
+    [ "--enable-optimize"
+      "--disable-debug"
+      "--enable-strip"
+      "--with-system-jpeg"
+      "--with-system-zlib"
+      "--with-system-bz2"
+      "--with-system-nspr"
+      # "--with-system-nss"
+      # "--with-system-png" # <-- "--with-system-png won't work because the system's libpng doesn't have APNG support"
+      "--enable-system-cairo"
+      "--enable-system-sqlite"
+      "--disable-crashreporter"
+      "--disable-tests"
+      "--disable-necko-wifi" # maybe we want to enable this at some point
+      "--disable-installer" 
+      "--disable-updater"
+    ];
+
+
+  xulrunner = stdenv.mkDerivation rec {
+    name = "xulrunner-${xulVersion}";
+    
+    inherit src;
+
+    buildInputs =
+      [ pkgconfig gtk perl zip libIDL libjpeg libpng zlib cairo bzip2
+        python dbus dbus_glib pango freetype fontconfig xlibs.libXi
+        xlibs.libX11 xlibs.libXrender xlibs.libXft xlibs.libXt file
+        alsaLib nspr /* nss */ libnotify xlibs.pixman yasm mesa
+        xlibs.libXScrnSaver xlibs.scrnsaverproto
+        xlibs.libXext xlibs.xextproto sqlite unzip
+      ];
+
+    configureFlags =
+      [ "--enable-application=xulrunner"
+        "--disable-javaxpcom"
+      ] ++ commonConfigureFlags;
+
+    enableParallelBuilding = true;
+      
+    # Hack to work around make's idea of -lbz2 dependency
+    preConfigure =
+      ''
+        find . -name Makefile.in -execdir sed -i '{}' -e '1ivpath %.so ${
+          stdenv.lib.concatStringsSep ":" 
+            (map (s : s + "/lib") (buildInputs ++ [stdenv.gcc.libc]))
+        }' ';'
+
+        export NIX_LDFLAGS="$NIX_LDFLAGS -L$out/lib/xulrunner-${xulVersion}"
+      '';
+
+    # !!! Temporary hack.
+    preBuild =
+      ''
+        export NIX_ENFORCE_PURITY=
+      '';
+
+    installFlags = "SKIP_GRE_REGISTRATION=1";
+
+    postInstall = ''
+      # Fix some references to /bin paths in the Xulrunner shell script.
+      substituteInPlace $out/bin/xulrunner \
+          --replace /bin/pwd "$(type -tP pwd)" \
+          --replace /bin/ls "$(type -tP ls)"
+
+      # Fix run-mozilla.sh search
+      libDir=$(cd $out/lib && ls -d xulrunner-[0-9]*)
+      echo libDir: $libDir
+      test -n "$libDir"
+      cd $out/bin
+      mv xulrunner ../lib/$libDir/
+
+      for i in $out/lib/$libDir/*; do 
+          file $i;
+          if file $i | grep executable &>/dev/null; then 
+              echo -e '#! /bin/sh\n"'"$i"'" "$@"' > "$out/bin/$(basename "$i")";
+              chmod a+x "$out/bin/$(basename "$i")";
+          fi;
+      done;
+      for i in $out/lib/$libDir/{xpcshell,plugin-container,*.so}; do
+              patchelf --set-rpath "$(patchelf --print-rpath "$i"):$out/lib/$libDir" $i || true
+      done;
+      rm -f $out/bin/run-mozilla.sh
+    ''; # */
+
+    meta = {
+      description = "Mozilla Firefox XUL runner";
+      homepage = http://www.mozilla.com/en-US/firefox/;
+    };
+
+    passthru = { inherit gtk; version = xulVersion; };
+  };
+
+
+  firefox = stdenv.mkDerivation rec {
+    name = "firefox-${firefoxVersion}";
+
+    inherit src;
+
+    enableParallelBuilding = true;
+      
+    buildInputs =
+      [ pkgconfig gtk perl zip libIDL libjpeg zlib cairo bzip2 python
+        dbus dbus_glib pango freetype fontconfig alsaLib nspr libnotify
+        xlibs.pixman yasm mesa sqlite file unzip
+      ];
+
+    propagatedBuildInputs = [xulrunner];
+
+    configureFlags =
+      [ "--enable-application=browser"
+        "--with-libxul-sdk=${xulrunner}/lib/xulrunner-devel-${xulrunner.version}"
+        "--enable-chrome-format=jar"
+	"--disable-elf-hack"
+      ]
+      ++ commonConfigureFlags
+      ++ stdenv.lib.optional enableOfficialBranding "--enable-official-branding";
+
+    # Hack to work around make's idea of -lbz2 dependency
+    preConfigure =
+      ''
+        find . -name Makefile.in -execdir sed -i '{}' -e '1ivpath %.so ${
+          stdenv.lib.concatStringsSep ":" 
+            (map (s : s + "/lib") (buildInputs ++ [stdenv.gcc.libc]))
+        }' ';'
+      '';
+
+    postInstall =
+      ''
+        ln -s ${xulrunner}/lib/xulrunner-${xulrunner.version} $(echo $out/lib/firefox-*)/xulrunner
+        for j in $out/bin/*; do 
+	    i="$(readlink "$j")";
+            file $i;
+            if file $i | grep executable &>/dev/null; then 
+	        rm "$out/bin/$(basename "$i")"
+                echo -e '#! /bin/sh\n"'"$i"'" "$@"' > "$out/bin/$(basename "$i")"
+                chmod a+x "$out/bin/$(basename "$i")"
+            fi;
+        done;
+      ''; # */
+
+    meta = {
+      description = "Mozilla Firefox - the browser, reloaded";
+      homepage = http://www.mozilla.com/en-US/firefox/;
+    };
+
+    passthru = {
+      inherit gtk xulrunner nspr;
+      isFirefox3Like = true;
+    };
+  };
+}
diff --git a/pkgs/build-support/fetchurl/mirrors.nix b/pkgs/build-support/fetchurl/mirrors.nix
index 713e7db0e3c..b8925f89303 100644
--- a/pkgs/build-support/fetchurl/mirrors.nix
+++ b/pkgs/build-support/fetchurl/mirrors.nix
@@ -98,6 +98,7 @@ rec {
     http://www.eu.kernel.org/pub/
     http://www.de.kernel.org/pub/
     http://ramses.wh2.tu-dresden.de/pub/mirrors/kernel.org/
+    http://linux-kernel.uio.no/pub/
   ];
 
   # Mirrors of ftp://ftp.kde.org/pub/kde/.
diff --git a/pkgs/data/misc/themes/theme-gnu.nix b/pkgs/data/misc/themes/theme-gnu.nix
index f04c820e0e9..32d1a9256ac 100644
--- a/pkgs/data/misc/themes/theme-gnu.nix
+++ b/pkgs/data/misc/themes/theme-gnu.nix
@@ -1,5 +1,5 @@
 {fetchurl, ...}:
 fetchurl {
-  url = http://mirrors.kernel.org/gentoo/distfiles/Theme-GNU.tar.bz2;
-  md5 = "61969309d23c631e57b0a311102ef034";
+  url = http://dev.gentoo.org/~spock/repos/bootsplash/Theme-GNU.tar.bz2;
+  sha256 = "1pj91nxvwjphc8r6idl4ih3ldyk34j1w9c4p8gzmwnwg3w34xha0";
 }
diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index fcd57205dcf..d5ccb19caec 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -17,8 +17,8 @@ stdenv.mkDerivation rec {
   name = "ruby-${version}";
   
   src = fetchurl {
-    url = "ftp://ftp.ruby-lang.org/pub/ruby/1.8/${name}.tar.gz";
-    sha256 = "0qf50wa1ziziagnxarj8z6yrsivrhchq1j9017ff3z2z7d31l9kc";
+    url = "ftp://ftp.ruby-lang.org/pub/ruby/1.9/${name}.tar.gz";
+    sha256 = "0zmxdqzprbdc5mvmba1i94mpqnqxxlh460jri7bx6i29bibigj0w";
   };
 
   # Have `configure' avoid `/usr/bin/nroff' in non-chroot builds.
@@ -43,9 +43,9 @@ stdenv.mkDerivation rec {
   };
 
   passthru = rec {
-    majorVersion = "1.8";
-    minorVersion = "7";
-    patchLevel = "330";
+    majorVersion = "1.9";
+    minorVersion = "2";
+    patchLevel = "290";
     libPath = "lib/ruby/${majorVersion}";
     gemPath = "lib/ruby/gems/${majorVersion}";
   };
diff --git a/pkgs/development/interpreters/ruby/ruby-19.nix b/pkgs/development/interpreters/ruby/ruby-18.nix
similarity index 84%
rename from pkgs/development/interpreters/ruby/ruby-19.nix
rename to pkgs/development/interpreters/ruby/ruby-18.nix
index d5ccb19caec..fcd57205dcf 100644
--- a/pkgs/development/interpreters/ruby/ruby-19.nix
+++ b/pkgs/development/interpreters/ruby/ruby-18.nix
@@ -17,8 +17,8 @@ stdenv.mkDerivation rec {
   name = "ruby-${version}";
   
   src = fetchurl {
-    url = "ftp://ftp.ruby-lang.org/pub/ruby/1.9/${name}.tar.gz";
-    sha256 = "0zmxdqzprbdc5mvmba1i94mpqnqxxlh460jri7bx6i29bibigj0w";
+    url = "ftp://ftp.ruby-lang.org/pub/ruby/1.8/${name}.tar.gz";
+    sha256 = "0qf50wa1ziziagnxarj8z6yrsivrhchq1j9017ff3z2z7d31l9kc";
   };
 
   # Have `configure' avoid `/usr/bin/nroff' in non-chroot builds.
@@ -43,9 +43,9 @@ stdenv.mkDerivation rec {
   };
 
   passthru = rec {
-    majorVersion = "1.9";
-    minorVersion = "2";
-    patchLevel = "290";
+    majorVersion = "1.8";
+    minorVersion = "7";
+    patchLevel = "330";
     libPath = "lib/ruby/${majorVersion}";
     gemPath = "lib/ruby/gems/${majorVersion}";
   };
diff --git a/pkgs/development/interpreters/ruby/rubygems.nix b/pkgs/development/interpreters/ruby/rubygems.nix
index 60e83332c08..0d93b330ca0 100644
--- a/pkgs/development/interpreters/ruby/rubygems.nix
+++ b/pkgs/development/interpreters/ruby/rubygems.nix
@@ -1,16 +1,12 @@
 args : with args; 
 rec {
 
-  # some packages (eg ruby-debug) still require 1.8. So let's stick to that for
-  # now if nobody has different requirements
-
   version = "1.8.10";
   src = fetchurl {
     url = "http://production.cf.rubygems.org/rubygems/${name}.tgz";
     sha256 = "0ll5swf4mi4nbgnr5jcyzmnlwb1zr2md9kvsgy3d1f485bb1n59q";
   };
 
-
   buildInputs = [ruby makeWrapper];
   configureFlags = [];
 
diff --git a/pkgs/os-specific/linux/aufs3-util/default.nix b/pkgs/os-specific/linux/aufs3-util/default.nix
new file mode 100644
index 00000000000..00c3e99c457
--- /dev/null
+++ b/pkgs/os-specific/linux/aufs3-util/default.nix
@@ -0,0 +1,39 @@
+{ stdenv, fetchgit, kernel, aufs3 }:
+
+stdenv.mkDerivation {
+  name = "aufs3-util-${aufs3.patch.version}";
+
+  src = fetchgit {
+    url = git://aufs.git.sourceforge.net/gitroot/aufs/aufs-util.git;
+    rev = aufs3.patch.utilRev;
+    sha256 = aufs3.patch.utilHash;
+  };
+
+  buildInputs = [ aufs3 ];
+
+  makeFlags =
+    [ "KDIR=${kernel}/lib/modules/${kernel.modDirVersion}/build"
+      "Install=install"
+      "DESTDIR=$(out)"
+    ];
+
+  postInstall =
+    ''
+      mv $out/usr/* $out
+      rmdir $out/usr
+
+      cp aufs.shlib $out/lib/
+
+      substituteInPlace $out/bin/aubrsync \
+        --replace /sbin/mount $out/sbin/mount \
+        --replace /usr/lib/aufs.shlib $out/lib/aufs.shlib
+    '';
+
+  meta = {
+    description = "Utilities for AUFS3";
+    homepage = http://aufs.sourceforge.net/;
+    maintainers = [ stdenv.lib.maintainers.eelco 
+                    stdenv.lib.maintainers.shlevy ];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}
diff --git a/pkgs/os-specific/linux/aufs3/default.nix b/pkgs/os-specific/linux/aufs3/default.nix
new file mode 100644
index 00000000000..bf73e6510f7
--- /dev/null
+++ b/pkgs/os-specific/linux/aufs3/default.nix
@@ -0,0 +1,42 @@
+{ stdenv, kernel, perl }:
+
+let
+
+  aufsPredicate = x:
+    if x ? features then
+      (if x.features ? aufs3 then x.features.aufs3 else false)
+    else false;
+  featureAbort = abort "This kernel does not have aufs 3 support";
+  patch = stdenv.lib.findFirst aufsPredicate featureAbort kernel.kernelPatches;
+
+in
+
+stdenv.mkDerivation {
+  name = "aufs3-${patch.version}";
+
+  src = patch.patch.src;
+
+  buildInputs = [ perl ];
+
+  makeFlags = "KDIR=${kernel}/lib/modules/${kernel.modDirVersion}/build";
+
+  installPhase =
+    ''
+      ensureDir $out/lib/modules/${kernel.modDirVersion}/misc
+      cp -v aufs.ko $out/lib/modules/${kernel.modDirVersion}/misc
+
+      # Install the headers because aufs3-util requires them.
+      ensureDir $out/include/linux
+      cp -v usr/include/linux/aufs_type.h $out/include/linux
+    '';
+
+  passthru = { inherit patch; };
+  meta = {
+    description = "Another Unionfs implementation for Linux (third generation)";
+    homepage = http://aufs.sourceforge.net/;
+    maintainers = [ stdenv.lib.maintainers.eelco
+                    stdenv.lib.maintainers.raskin
+                    stdenv.lib.maintainers.shlevy ];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}
diff --git a/pkgs/os-specific/linux/kernel/generic.nix b/pkgs/os-specific/linux/kernel/generic.nix
index 6ed8164f341..11aaf176891 100644
--- a/pkgs/os-specific/linux/kernel/generic.nix
+++ b/pkgs/os-specific/linux/kernel/generic.nix
@@ -75,7 +75,7 @@ stdenv.mkDerivation {
   enableParallelBuilding = true;
 
   passthru = {
-    inherit version modDirVersion headersSrc headersVersion;
+    inherit version modDirVersion kernelPatches headersSrc headersVersion;
     # Combine the `features' attribute sets of all the kernel patches.
     features = lib.fold (x: y: (if x ? features then x.features else {}) // y) features kernelPatches;
   };
diff --git a/pkgs/os-specific/linux/kernel/linux-3.1.nix b/pkgs/os-specific/linux/kernel/linux-3.1.nix
index a87554ae71a..ae78de1e476 100644
--- a/pkgs/os-specific/linux/kernel/linux-3.1.nix
+++ b/pkgs/os-specific/linux/kernel/linux-3.1.nix
@@ -200,13 +200,13 @@ in
 import ./generic.nix (
 
   rec {
-    version = "3.1-rc7";
+    version = "3.1-rc8";
 
-    modDirVersion = "3.1.0-rc7";
+    modDirVersion = "3.1.0-rc8";
   
     src = fetchurl {
       url = "https://github.com/torvalds/linux/tarball/v${version}";
-      sha256 = "05zlg522svyym6cab7lrqpihzrk8j356dyahyc321nd8yw0qfv2x";
+      sha256 = "1sz6snv2wavzasrswaprkjpzpll4247v4br0x2i6sndl2nqa6jz7";
       name = "v${version}.tar.gz";
     };
 
diff --git a/pkgs/os-specific/linux/kernel/patches.nix b/pkgs/os-specific/linux/kernel/patches.nix
index 2b0d76d76ed..672464e8965 100644
--- a/pkgs/os-specific/linux/kernel/patches.nix
+++ b/pkgs/os-specific/linux/kernel/patches.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, fetchgit }:
 
 let
 
@@ -36,6 +36,24 @@ let
       };
     };
 
+    makeAufs3StandalonePatch =  {version, rev, sha256}:
+
+      stdenv.mkDerivation {
+        name = "aufs3-standalone-${version}.patch";
+
+        src = fetchgit {
+          url = git://aufs.git.sourceforge.net/gitroot/aufs/aufs3-standalone.git;
+          inherit sha256 rev;
+        };
+
+        phases = [ "unpackPhase" "installPhase" ];
+
+        #Instructions from http://aufs.git.sourceforge.net/git/gitweb.cgi?p=aufs/aufs3-standalone.git;a=blob;f=Documentation/filesystems/aufs/README;h=b8cf077635b323d1b454266366f05f476bbd09cb;hb=1067b9d8d64d23c70d905c9cd3c90a669e39c4d4
+        installPhase = ''
+          cat aufs3-base.patch aufs3-proc_map.patch aufs3-standalone.patch > $out
+        '';
+      };
+
 in
 
 rec {
@@ -193,6 +211,7 @@ rec {
       name = "aufs2";
       patch = ./aufs2.patch;
       features.aufsBase = true;
+      features.aufs2 = true;
     };
 
   aufs2_2_6_33 =
@@ -202,6 +221,7 @@ rec {
       name = "aufs2";
       patch = ./aufs2-33.patch;
       features.aufsBase = true;
+      features.aufs2 = true;
     };
 
   aufs2_2_6_34 =
@@ -211,6 +231,7 @@ rec {
       name = "aufs2";
       patch = ./aufs2-34.patch;
       features.aufsBase = true;
+      features.aufs2 = true;
     };
 
   aufs2_2_6_35 =
@@ -220,6 +241,7 @@ rec {
       name = "aufs2";
       patch = ./aufs2-35.patch;
       features.aufsBase = true;
+      features.aufs2 = true;
     };
 
   aufs2_2_6_36 =
@@ -272,6 +294,20 @@ rec {
       features.aufs2_1 = true;
     };
 
+  aufs3_0 = rec {
+    name = "aufs3.0";
+    version = "3.0";
+    utilRev = "a08d17d433567c7c2586c5fc2625a714b20fe155";
+    utilHash = "4772c1c6a36da7bbd448057c227a9cd1856ccf72748765cf85421ab0c4e34535";
+    patch = makeAufs3StandalonePatch {
+      inherit version;
+      rev = "1067b9d8d64d23c70d905c9cd3c90a669e39c4d4";
+      sha256 = "b508cab5987a623f057ae5fdc006c909a6bae6151af6e12fe672bf97b1a7549d";
+    };
+    features.aufsBase = true;
+    features.aufs3 = true;
+  };
+
   # Increase the timeout on CIFS requests from 15 to 120 seconds to
   # make CIFS more resilient to high load on the CIFS server.
   cifs_timeout_2_6_15 =
diff --git a/pkgs/os-specific/linux/qemu-kvm/default.nix b/pkgs/os-specific/linux/qemu-kvm/default.nix
index 745d6900e90..3f35d3304ce 100644
--- a/pkgs/os-specific/linux/qemu-kvm/default.nix
+++ b/pkgs/os-specific/linux/qemu-kvm/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, zlib, SDL, alsaLib, pkgconfig, pciutils, libuuid, vde2
+{ stdenv, fetchurl, attr, zlib, SDL, alsaLib, pkgconfig, pciutils, libuuid, vde2
 , libjpeg, libpng, ncurses, python, glib }:
 
 assert stdenv.isLinux;
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   buildInputs =
-    [ zlib SDL alsaLib pkgconfig pciutils libuuid vde2 libjpeg libpng
+    [ attr zlib SDL alsaLib pkgconfig pciutils libuuid vde2 libjpeg libpng
       ncurses python glib
     ];
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3c30c879ea2..92fa24586c7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2610,9 +2610,9 @@ let
 
   regina = callPackage ../development/interpreters/regina {};
 
-  ruby18 = callPackage ../development/interpreters/ruby { };
-  ruby19 = callPackage ../development/interpreters/ruby/ruby-19.nix { };
-  ruby = ruby18;
+  ruby18 = callPackage ../development/interpreters/ruby/ruby-18.nix { };
+  ruby19 = callPackage ../development/interpreters/ruby { };
+  ruby = ruby19;
 
   rubyLibs = recurseIntoAttrs (callPackage ../development/interpreters/ruby/libs.nix { });
 
@@ -5560,6 +5560,7 @@ let
     kernelPatches =
       [ #kernelPatches.fbcondecor_2_6_38
         kernelPatches.sec_perm_2_6_24
+        kernelPatches.aufs3_0
         #kernelPatches.aufs2_1_3_0
         #kernelPatches.mips_restart_2_6_36
       ];
@@ -5591,17 +5592,29 @@ let
 
     aufs = callPackage ../os-specific/linux/aufs { };
 
-    aufs2 = callPackage ../os-specific/linux/aufs2 { };
+    aufs2 = if kernel.features ? aufs2 then
+      callPackage ../os-specific/linux/aufs2 { }
+      else null;
 
     aufs2_1 = if kernel.features ? aufs2_1 then
       callPackage ../os-specific/linux/aufs2.1 { }
       else null;
 
+    aufs3 = if kernel.features ? aufs3 then
+      callPackage ../os-specific/linux/aufs3 { }
+      else null;
+
+    aufs2_util = if kernel.features ? aufs2 then
+      callPackage ../os-specific/linux/aufs2-util { }
+      else null;
+
     aufs2_1_util = if kernel.features ? aufs2_1 then
       callPackage ../os-specific/linux/aufs2.1-util { }
       else null;
 
-    aufs2_util = callPackage ../os-specific/linux/aufs2-util { };
+    aufs3_util = if kernel.features ? aufs3 then
+      callPackage ../os-specific/linux/aufs3-util { }
+      else null;
 
     blcr = callPackage ../os-specific/linux/blcr {
       #libtool = libtool_1_5; # libtool 2 causes a fork bomb
@@ -6575,12 +6588,17 @@ let
 
   firefox60Wrapper = wrapFirefox firefox60Pkgs.firefox "firefox" "";
 
-  firefox70b1Pkgs = callPackage ../applications/networking/browsers/firefox/7.0.nix {
+  firefox70Pkgs = callPackage ../applications/networking/browsers/firefox/7.0.nix {
     inherit (gtkLibs) gtk pango;
     inherit (gnome) libIDL;
   };
 
-  firefox70b1Wrapper = lowPrio (wrapFirefox firefox70b1Pkgs.firefox "firefox" "");
+  firefox70Wrapper = lowPrio (wrapFirefox firefox70Pkgs.firefox "firefox" "");
+
+  firefox80bPkgs = callPackage ../applications/networking/browsers/firefox/8.0.nix {
+    inherit (gtkLibs) gtk pango;
+    inherit (gnome) libIDL;
+  };
 
   flac = callPackage ../applications/audio/flac { };
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index b50028f47be..edf38bff72a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -614,11 +614,11 @@ let pythonPackages = python.modules // rec {
 
 
   jinja2 = buildPythonPackage {
-    name = "jinja2-2.2.1";
+    name = "jinja2-2.6";
 
     src = fetchurl {
-      url = "http://pypi.python.org/packages/source/J/Jinja2/Jinja2-2.2.1.tar.gz";
-      md5 = "fea849d68891218eb0b21c170f1c32d5";
+      url = "http://pypi.python.org/packages/source/J/Jinja2/Jinja2-2.6.tar.gz";
+      md5 = "1c49a8825c993bfdcf55bb36897d28a2";
     };
 
     meta = {
diff --git a/pkgs/top-level/release.nix b/pkgs/top-level/release.nix
index 1e189d06242..247b9be61ad 100644
--- a/pkgs/top-level/release.nix
+++ b/pkgs/top-level/release.nix
@@ -387,6 +387,7 @@ with (import ./release-lib.nix);
   firefox36Pkgs.firefox = linux;
   firefox50Pkgs.firefox = linux;
   firefox60Pkgs.firefox = linux;
+  firefox70Pkgs.firefox = linux;
 
   gnome = {
     gnome_panel = linux;