diff --git a/nixos/modules/services/x11/window-managers/xmonad.nix b/nixos/modules/services/x11/window-managers/xmonad.nix
index b9013ca1ff9..2bb4827be9d 100644
--- a/nixos/modules/services/x11/window-managers/xmonad.nix
+++ b/nixos/modules/services/x11/window-managers/xmonad.nix
@@ -5,25 +5,37 @@ let
   inherit (lib) mkOption mkIf optionals literalExample;
   cfg = config.services.xserver.windowManager.xmonad;
 
+  ghcWithPackages = cfg.haskellPackages.ghcWithPackages;
+  packages = self: cfg.extraPackages self ++
+                   optionals cfg.enableContribAndExtras
+                   [ self.xmonad-contrib self.xmonad-extras ];
+
   xmonad-vanilla = pkgs.xmonad-with-packages.override {
-    ghcWithPackages = cfg.haskellPackages.ghcWithPackages;
-    packages = self: cfg.extraPackages self ++
-                     optionals cfg.enableContribAndExtras
-                     [ self.xmonad-contrib self.xmonad-extras ];
+    inherit ghcWithPackages packages;
   };
 
-  xmonad-config = pkgs.writers.writeHaskellBin "xmonad" {
-    ghc = cfg.haskellPackages.ghc;
-    libraries = [ cfg.haskellPackages.xmonad ] ++
-                cfg.extraPackages cfg.haskellPackages ++
-                optionals cfg.enableContribAndExtras
-                (with cfg.haskellPackages; [ xmonad-contrib xmonad-extras ]);
-    inherit (cfg) ghcArgs;
-  } cfg.config;
+  xmonad-config =
+    let
+      xmonadAndPackages = self: [ self.xmonad ] ++ packages self;
+      xmonadEnv = ghcWithPackages xmonadAndPackages;
+      configured = pkgs.writers.writeHaskellBin "xmonad" {
+        ghc = cfg.haskellPackages.ghc;
+        libraries = xmonadAndPackages cfg.haskellPackages;
+        inherit (cfg) ghcArgs;
+      } cfg.config;
+    in
+      pkgs.runCommandLocal "xmonad" {
+        nativeBuildInputs = [ pkgs.makeWrapper ];
+      } ''
+        install -D ${xmonadEnv}/share/man/man1/xmonad.1.gz $out/share/man/man1/xmonad.1.gz
+        makeWrapper ${configured}/bin/xmonad $out/bin/xmonad \
+          --set NIX_GHC "${xmonadEnv}/bin/ghc" \
+          --set XMONAD_XMESSAGE "${pkgs.xorg.xmessage}/bin/xmessage"
+      '';
 
   xmonad = if (cfg.config != null) then xmonad-config else xmonad-vanilla;
 in {
-  meta.maintainers = with maintainers; [ lassulus xaverdh ];
+  meta.maintainers = with maintainers; [ lassulus xaverdh ivanbrennan ];
 
   options = {
     services.xserver.windowManager.xmonad = {
@@ -72,13 +84,13 @@ in {
           This setup is then analogous to other (non-NixOS) linux distributions.
 
           If you do set this option, you likely want to use "launch" as your
-          entry point for xmonad (as in the example), to avoid xmonads
+          entry point for xmonad (as in the example), to avoid xmonad's
           recompilation logic on startup. Doing so will render the default
           "mod+q" restart key binding dysfunctional though, because that attempts
           to call your binary with the "--restart" command line option, unless
           you implement that yourself. You way mant to bind "mod+q" to
           <literal>(restart "xmonad" True)</literal> instead, which will just restart
-          xmonad from PATH. This allows e.g. switching to the new xmonad binary,
+          xmonad from PATH. This allows e.g. switching to the new xmonad binary
           after rebuilding your system with nixos-rebuild.
 
           If you actually want to run xmonad with a config specified here, but
@@ -91,6 +103,7 @@ in {
         example = ''
           import XMonad
           import XMonad.Util.EZConfig (additionalKeys)
+          import Control.Monad (when)
           import Text.Printf (printf)
           import System.Posix.Process (executeFile)
           import System.Info (arch,os)
@@ -99,16 +112,21 @@ in {
 
           compiledConfig = printf "xmonad-%s-%s" arch os
 
-          compileRestart = whenX (recompile True) . catchIO $ do
-              dir  <- getXMonadDataDir
-              args <- getArgs
-              executeFile (dir </> compiledConfig) False args Nothing
+          compileRestart resume =
+            whenX (recompile True) $
+              when resume writeStateToFile
+                *> catchIO
+                  ( do
+                      dir <- getXMonadDataDir
+                      args <- getArgs
+                      executeFile (dir </> compiledConfig) False args Nothing
+                  )
 
           main = launch defaultConfig
               { modMask = mod4Mask -- Use Super instead of Alt
               , terminal = "urxvt" }
               `additionalKeys`
-              [ ( (mod4Mask,xK_r), compileRestart )
+              [ ( (mod4Mask,xK_r), compileRestart True)
               , ( (mod4Mask,xK_q), restart "xmonad" True ) ]
         '';
       };
diff --git a/pkgs/applications/misc/dasel/default.nix b/pkgs/applications/misc/dasel/default.nix
index 073983fa355..8853ff266a6 100644
--- a/pkgs/applications/misc/dasel/default.nix
+++ b/pkgs/applications/misc/dasel/default.nix
@@ -20,6 +20,17 @@ buildGoModule rec {
     -ldflags=-s -w -X github.com/tomwright/dasel/internal.Version=${version}
   '';
 
+  doInstallCheck = true;
+  installCheckPhase = ''
+    if [[ "$("$out/bin/${pname}" --version)" == "${pname} version ${version}" ]]; then
+      echo "" | $out/bin/dasel put object -p yaml -t string -t int "my.favourites" colour=red number=3 | grep -q red
+      echo '${pname} smoke check passed'
+    else
+      echo '${pname} smoke check failed'
+      return 1
+    fi
+  '';
+
   meta = with stdenv.lib; {
     description = "Query and update data structures from the command line";
     longDescription = ''
diff --git a/pkgs/applications/networking/instant-messengers/skypeforlinux/default.nix b/pkgs/applications/networking/instant-messengers/skypeforlinux/default.nix
index 47a79c7309d..d4e43ed3a92 100644
--- a/pkgs/applications/networking/instant-messengers/skypeforlinux/default.nix
+++ b/pkgs/applications/networking/instant-messengers/skypeforlinux/default.nix
@@ -108,6 +108,10 @@ in stdenv.mkDerivation {
     # Fix the desktop link
     substituteInPlace $out/share/applications/skypeforlinux.desktop \
       --replace /usr/bin/ $out/bin/
+    substituteInPlace $out/share/applications/skypeforlinux-share.desktop \
+      --replace /usr/bin/ $out/bin/
+    substituteInPlace $out/share/kservices5/ServiceMenus/skypeforlinux.desktop \
+      --replace /usr/bin/ $out/bin/
   '';
 
   meta = with stdenv.lib; {
diff --git a/pkgs/applications/terminal-emulators/xterm/default.nix b/pkgs/applications/terminal-emulators/xterm/default.nix
index 1ec704f5d43..d06a66edf1a 100644
--- a/pkgs/applications/terminal-emulators/xterm/default.nix
+++ b/pkgs/applications/terminal-emulators/xterm/default.nix
@@ -4,14 +4,14 @@
 
 stdenv.mkDerivation rec {
   pname = "xterm";
-  version = "362";
+  version = "363";
 
   src = fetchurl {
     urls = [
       "ftp://ftp.invisible-island.net/xterm/${pname}-${version}.tgz"
       "https://invisible-mirror.net/archives/xterm/${pname}-${version}.tgz"
     ];
-    sha256 = "HU/+Im+o8CGFm7wwB3iP9jpGoxJC2b2ae9fr4k6BrKI=";
+    sha256 = "2Bo2OeJlUrZ2W9zyi+Hs24rKv5B5VXCOgwrWOX6hC0g=";
   };
 
   buildInputs = [
diff --git a/pkgs/applications/version-management/redmine/default.nix b/pkgs/applications/version-management/redmine/default.nix
index defbf9c2aec..4279fdd5f99 100644
--- a/pkgs/applications/version-management/redmine/default.nix
+++ b/pkgs/applications/version-management/redmine/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, bundlerEnv, ruby }:
+{ stdenv, fetchurl, bundlerEnv, ruby, makeWrapper }:
 
 let
   version = "4.1.1";
@@ -19,6 +19,7 @@ in
       sha256 = "1nndy5hz8zvfglxf1f3bsb1pkrfwinfxzkdan1vjs3rkckkszyh5";
     };
 
+    nativeBuildInputs = [ makeWrapper ];
     buildInputs = [ rubyEnv rubyEnv.wrappedRuby rubyEnv.bundler ];
 
     # taken from https://www.redmine.org/issues/33784
@@ -31,12 +32,14 @@ in
     '';
 
     installPhase = ''
-      mkdir -p $out/share
+      mkdir -p $out/bin $out/share
       cp -r . $out/share/redmine
       for i in config files log plugins public/plugin_assets public/themes tmp; do
         rm -rf $out/share/redmine/$i
         ln -fs /run/redmine/$i $out/share/redmine/$i
       done
+
+      makeWrapper ${rubyEnv.wrappedRuby}/bin/ruby $out/bin/rdm-mailhandler.rb --add-flags $out/share/redmine/extra/mail_handler/rdm-mailhandler.rb
     '';
 
     meta = with stdenv.lib; {
diff --git a/pkgs/data/icons/luna-icons/default.nix b/pkgs/data/icons/luna-icons/default.nix
index 2a75c6c2030..b0de2ac3b13 100644
--- a/pkgs/data/icons/luna-icons/default.nix
+++ b/pkgs/data/icons/luna-icons/default.nix
@@ -8,13 +8,13 @@
 
 stdenv.mkDerivation rec {
   pname = "luna-icons";
-  version = "0.9";
+  version = "0.9.1";
 
   src = fetchFromGitHub {
     owner = "darkomarko42";
     repo = pname;
     rev = version;
-    sha256 = "1pwbmw20kzlxnwln92nxq7f5s1xwbpv6j7il7jxymlw0y31rl281";
+    sha256 = "0mz5cayjgsc109nv7kdkn3gn1n79bl3hb773lrzrr0k2zblxg353";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/libraries/libraspberrypi/default.nix b/pkgs/development/libraries/libraspberrypi/default.nix
index 57a8a0e191a..664b8d1a7e0 100644
--- a/pkgs/development/libraries/libraspberrypi/default.nix
+++ b/pkgs/development/libraries/libraspberrypi/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake pkg-config ];
   cmakeFlags = [
     (if (stdenv.hostPlatform.isAarch64) then "-DARM64=ON" else "-DARM64=OFF")
-    "-DVMCS_INSTALL_PREFIX=$out"
+    "-DVMCS_INSTALL_PREFIX=${placeholder "out"}"
   ];
 
   meta = with stdenv.lib; {
diff --git a/pkgs/development/tools/build-managers/sbt-extras/default.nix b/pkgs/development/tools/build-managers/sbt-extras/default.nix
index cf85d894a37..24c2bdd2af3 100644
--- a/pkgs/development/tools/build-managers/sbt-extras/default.nix
+++ b/pkgs/development/tools/build-managers/sbt-extras/default.nix
@@ -4,14 +4,14 @@
 
 stdenv.mkDerivation rec {
   pname = "sbt-extras";
-  rev = "32cf43b58f91bd3b7063baa9f2d75d4af45d9c4b";
-  version = "2020-12-17";
+  rev = "4db8d5c27413f69297adfffac57485d88d73c60e";
+  version = "2020-12-26";
 
   src = fetchFromGitHub {
     owner = "paulp";
     repo = "sbt-extras";
     inherit rev;
-    sha256 = "046xr3x73p63xnfakq981gvl299l5fahxgnn0bacvp7pa8g99dv2";
+    sha256 = "B8abzdohkw3aPhbENJ2vxZFLWhIpf0HF/uv+WJbVRYg=";
   };
 
   dontBuild = true;
diff --git a/pkgs/games/mindustry/default.nix b/pkgs/games/mindustry/default.nix
index c547fb052aa..423bf4bf9fe 100644
--- a/pkgs/games/mindustry/default.nix
+++ b/pkgs/games/mindustry/default.nix
@@ -22,14 +22,14 @@ let
   # Note: when raising the version, ensure that all SNAPSHOT versions in
   # build.gradle are replaced by a fixed version
   # (the current one at the time of release) (see postPatch).
-  version = "121.4";
+  version = "122";
   buildVersion = makeBuildVersion version;
 
   src = fetchFromGitHub {
     owner = "Anuken";
     repo = "Mindustry";
     rev = "v${version}";
-    sha256 = "14w0fkn8q5bj84py7vx33wdk9d37ncrq6rdj5ryz4mvlxbix2n4n";
+    sha256 = "19dxqscnny0c5w3pyg88hflrkhsqgd7zx19240kh4h69y3wwaz0m";
   };
 
   desktopItem = makeDesktopItem {
@@ -50,6 +50,13 @@ let
     sed -i 's/com.github.anuken:packr:-SNAPSHOT/com.github.anuken:packr:034efe51781d2d8faa90370492133241bfb0283c/' build.gradle
   '';
 
+  preBuild = ''
+    # Arc is run at build time for sprite packing, and it needs to see
+    # the runtime libraries
+    ${stdenv.lib.optionalString stdenv.isLinux "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${alsaLib}/lib"}
+    export GRADLE_USER_HOME=$(mktemp -d)
+  '';
+
   # The default one still uses jdk8 (#89731)
   gradle_6 = (gradleGen.override (old: { java = jdk14; })).gradle_6_7;
 
@@ -62,7 +69,7 @@ let
     # one hash for 'deps'. Deps can be garbage collected after the build,
     # so this is not really an issue.
     buildPhase = ''
-      export GRADLE_USER_HOME=$(mktemp -d)
+      ${preBuild}
       gradle --no-daemon desktop:dist -Pbuildversion=${buildVersion}
       gradle --no-daemon server:dist -Pbuildversion=${buildVersion}
     '';
@@ -74,7 +81,7 @@ let
     '';
     outputHashAlgo = "sha256";
     outputHashMode = "recursive";
-    outputHash = "18n671aa013cnsnp9aaw61llqz4s4vn7zgja8cazd0cg632x8jca";
+    outputHash = "1kymfrd2vd23y1rmx19q47wc212r6qx03x6g58pxbqyylxmcw5zq";
   };
 
   # Separate commands for building and installing the server and the client
@@ -109,7 +116,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ gradle_6 makeWrapper ];
 
   buildPhase = with stdenv.lib; ''
-    export GRADLE_USER_HOME=$(mktemp -d)
+    ${preBuild}
     # point to offline repo
     sed -ie "s#mavenLocal()#mavenLocal(); maven { url '${deps}' }#g" build.gradle
     ${optionalString enableClient buildClient}
@@ -125,11 +132,15 @@ stdenv.mkDerivation rec {
     homepage = "https://mindustrygame.github.io/";
     downloadPage = "https://github.com/Anuken/Mindustry/releases";
     description = "A sandbox tower defense game";
-    license = licenses.gpl3;
+    license = licenses.gpl3Plus;
     maintainers = with maintainers; [ fgaz ];
     platforms = platforms.all;
     # Hash mismatch on darwin:
     # https://github.com/NixOS/nixpkgs/pull/105590#issuecomment-737120293
-    broken = stdenv.isDarwin;
+    # Problems with native libraries in aarch64:
+    # https://github.com/NixOS/nixpkgs/pull/107646
+    # https://logs.nix.ci/?key=nixos/nixpkgs.107646&attempt_id=3032c060-72e9-4a76-8186-4739544397dd
+    broken = stdenv.isDarwin ||
+             stdenv.isAarch64;
   };
 }
diff --git a/pkgs/os-specific/linux/kernel/linux-5.10.nix b/pkgs/os-specific/linux/kernel/linux-5.10.nix
index 411a88d9293..783e7cf2d96 100644
--- a/pkgs/os-specific/linux/kernel/linux-5.10.nix
+++ b/pkgs/os-specific/linux/kernel/linux-5.10.nix
@@ -3,7 +3,7 @@
 with stdenv.lib;
 
 buildLinux (args // rec {
-  version = "5.10.2";
+  version = "5.10.3";
 
   # modDirVersion needs to be x.y.z, will automatically add .0 if needed
   modDirVersion = if (modDirVersionArg == null) then concatStringsSep "." (take 3 (splitVersion "${version}.0")) else modDirVersionArg;
@@ -13,6 +13,6 @@ buildLinux (args // rec {
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v5.x/linux-${version}.tar.xz";
-    sha256 = "18l1ywp99inm90434fm74w8rjfl4yl974kfcpizg2sp2p8xf311v";
+    sha256 = "09cml495fnf52lhlkjxjznw34q5s8arvq7shkb6wjq6fwlrk65gr";
   };
 } // (args.argsOverride or {}))
diff --git a/pkgs/os-specific/linux/kernel/linux-lqx.nix b/pkgs/os-specific/linux/kernel/linux-lqx.nix
new file mode 100644
index 00000000000..f2704378979
--- /dev/null
+++ b/pkgs/os-specific/linux/kernel/linux-lqx.nix
@@ -0,0 +1,25 @@
+{ stdenv, fetchFromGitHub, buildLinux, linux_zen, ... } @ args:
+
+let
+  version = "5.9.16";
+in
+
+buildLinux (args // {
+  modDirVersion = "${version}-lqx1";
+  inherit version;
+  isZen = true;
+
+  src = fetchFromGitHub {
+    owner = "zen-kernel";
+    repo = "zen-kernel";
+    rev = "v${version}-lqx1";
+    sha256 = "0ljvqf91nxpql98z75bicg5y3nzkm41rq5b0rm1kcnsk0ji829ps";
+  };
+
+  extraMeta = {
+    branch = "5.9/master";
+    maintainers = with stdenv.lib.maintainers; [ atemu ];
+    description = linux_zen.meta.description + " (Same as linux_zen but less aggressive release schedule)";
+  };
+
+} // (args.argsOverride or {}))
diff --git a/pkgs/os-specific/linux/kernel/linux-testing.nix b/pkgs/os-specific/linux/kernel/linux-testing.nix
index 5bf74ffd377..ac84e70bae4 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing.nix
@@ -3,15 +3,15 @@
 with stdenv.lib;
 
 buildLinux (args // rec {
-  version = "5.10-rc6";
-  extraMeta.branch = "5.10";
+  version = "5.11-rc1";
+  extraMeta.branch = "5.11";
 
   # modDirVersion needs to be x.y.z, will always add .0
   modDirVersion = if (modDirVersionArg == null) then builtins.replaceStrings ["-"] [".0-"] version else modDirVersionArg;
 
   src = fetchurl {
     url = "https://git.kernel.org/torvalds/t/linux-${version}.tar.gz";
-    sha256 = "14ykzs98r918sqv7lddlps4r7hza1zgw0x67mmj77cmqiv6d8ffi";
+    sha256 = "sha256-nPJpz058khWE83QV9ITylTXjimBBw7SQwg7WBjWA7H0=";
   };
 
   # Should the testing kernels ever be built on Hydra?
diff --git a/pkgs/os-specific/linux/kernel/linux-zen.nix b/pkgs/os-specific/linux/kernel/linux-zen.nix
index fd06b2f8217..dc28f37338b 100644
--- a/pkgs/os-specific/linux/kernel/linux-zen.nix
+++ b/pkgs/os-specific/linux/kernel/linux-zen.nix
@@ -19,6 +19,7 @@ buildLinux (args // {
   extraMeta = {
     branch = "5.10/master";
     maintainers = with stdenv.lib.maintainers; [ atemu andresilva ];
+    description = "Built using the best configuration and kernel sources for desktop, multimedia, and gaming workloads.";
   };
 
 } // (args.argsOverride or {}))
diff --git a/pkgs/servers/unifi/default.nix b/pkgs/servers/unifi/default.nix
index 3072b44e4a3..b354fd994c9 100644
--- a/pkgs/servers/unifi/default.nix
+++ b/pkgs/servers/unifi/default.nix
@@ -38,23 +38,21 @@ let
     };
   };
 
-in {
-
-  # https://community.ui.com/releases / https://www.ui.com/download/unifi
-  # Outdated FAQ: https://help.ubnt.com/hc/en-us/articles/115000441548-UniFi-Current-Controller-Versions
+in rec {
+  # see https://community.ui.com/releases / https://www.ui.com/download/unifi
 
   unifiLTS = generic {
     version = "5.6.42";
     sha256 = "0wxkv774pw43c15jk0sg534l5za4j067nr85r5fw58iar3w2l84x";
   };
 
-  unifiStable = generic {
+  unifi5 = generic {
     version = "5.14.23";
     sha256 = "1aar05yjm3z5a30x505w4kakbyz35i7mk7xyg0wm4ml6h94d84pv";
   };
 
-  unifiBeta = generic {
-    version = "6.0.36";
-    sha256 = "1sjf4jd8jkf6194ahwqjxd2ip0r70bdk15gci1qrdw88agab143j";
+  unifi6 = generic {
+    version = "6.0.43";
+    sha256 = "1d9pw4f20pr4jb1xb43p7ycafv13ld1h40r05qg82029ml1s7jky";
   };
 }
diff --git a/pkgs/shells/zsh/oh-my-zsh/default.nix b/pkgs/shells/zsh/oh-my-zsh/default.nix
index 38236c117e8..9dcb1a97053 100644
--- a/pkgs/shells/zsh/oh-my-zsh/default.nix
+++ b/pkgs/shells/zsh/oh-my-zsh/default.nix
@@ -5,15 +5,15 @@
 , nix, nixfmt, jq, coreutils, gnused, curl, cacert }:
 
 stdenv.mkDerivation rec {
-  version = "2020-12-16";
+  version = "2020-12-27";
   pname = "oh-my-zsh";
-  rev = "b28665aebb4c1b07a57890eb59551bc51d0acf37";
+  rev = "90ffda7ed28dd8273b80bd262c6a28be65e4da71";
 
   src = fetchFromGitHub {
     inherit rev;
     owner = "ohmyzsh";
     repo = "ohmyzsh";
-    sha256 = "00m8d992jhbkd8mhm6zhirk9ga3dfzhh8idn2yp40yk7wdbzrd74";
+    sha256 = "lYf+NmSgY0WFBMWxVBrh/f2cSJ0WqnaTktQNA0nYZNE=";
   };
 
   installPhase = ''
diff --git a/pkgs/tools/admin/chamber/default.nix b/pkgs/tools/admin/chamber/default.nix
index 7a80ed37188..c2126181f36 100644
--- a/pkgs/tools/admin/chamber/default.nix
+++ b/pkgs/tools/admin/chamber/default.nix
@@ -1,15 +1,23 @@
-{ buildGoModule, lib, fetchFromGitHub }:
+{ buildGoModule, lib, fetchFromGitHub, fetchpatch }:
+
 buildGoModule rec {
   pname = "chamber";
-  version = "2.8.2";
+  version = "2.9.0";
 
   src = fetchFromGitHub {
     owner = "segmentio";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-7L9RaE4LvHRR6MUimze5QpbnfasWJdY4arfS/Usy2q0=";
+    sha256 = "eOMY9P/fCYvnl6KGNb6wohykLA0Sj9Ti0L18gx5dqUk=";
   };
 
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/segmentio/chamber/commit/3aeb416cdf4c232552b653262e37047fc13b1f02.patch";
+      sha256 = "cyxNF9ZP4oG+1sfX9yWZCyntpAvwYUh5BzTirZQGejc=";
+    })
+  ];
+
   vendorSha256 = null;
 
   # set the version. see: chamber's Makefile
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index ee622e90967..6e5da1bf34e 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -666,6 +666,7 @@ mapAliases ({
   ucsFonts = ucs-fonts; # added 2016-07-15
   ultrastardx-beta = ultrastardx; # added 2017-08-12
   unicorn-emu = unicorn; # added 2020-10-29
+  unifiStable = unifi6; # added 2020-12-28
   usb_modeswitch = usb-modeswitch; # added 2016-05-10
   usbguard-nox = usbguard; # added 2019-09-04
   utillinux = util-linux; # added 2020-11-24
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index dfa584bdbc1..315a5fa9ddb 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -17951,9 +17951,9 @@ in
 
   inherit (callPackages ../servers/unifi { })
     unifiLTS
-    unifiStable
-    unifiBeta;
-  unifi = unifiStable;
+    unifi5
+    unifi6;
+  unifi = unifi6;
 
   urserver = callPackage ../servers/urserver { };
 
@@ -18591,6 +18591,14 @@ in
     ];
   };
 
+  linux_lqx = callPackage ../os-specific/linux/kernel/linux-lqx.nix {
+    kernelPatches = [
+      kernelPatches.bridge_stp_helper
+      kernelPatches.request_key_helper
+      kernelPatches.export_kernel_fpu_functions."5.3"
+    ];
+  };
+
   /* Linux kernel modules are inherently tied to a specific kernel.  So
      rather than provide specific instances of those packages for a
      specific kernel, we have a function that builds those packages
@@ -18905,6 +18913,7 @@ in
 
   # zen-kernel
   linuxPackages_zen = recurseIntoAttrs (linuxPackagesFor pkgs.linux_zen);
+  linuxPackages_lqx = recurseIntoAttrs (linuxPackagesFor pkgs.linux_lqx);
 
   # A function to build a manually-configured kernel
   linuxManualConfig = makeOverridable (callPackage ../os-specific/linux/kernel/manual-config.nix {});