diff --git a/pkgs/development/compilers/ghc/8.10.4.nix b/pkgs/development/compilers/ghc/8.10.6.nix
similarity index 97%
rename from pkgs/development/compilers/ghc/8.10.4.nix
rename to pkgs/development/compilers/ghc/8.10.6.nix
index 07784c4264797..f1223deed85e5 100644
--- a/pkgs/development/compilers/ghc/8.10.4.nix
+++ b/pkgs/development/compilers/ghc/8.10.6.nix
@@ -2,7 +2,7 @@
 
 # build-tools
 , bootPkgs
-, autoconf, automake, coreutils, fetchpatch, fetchurl, perl, python3, m4, sphinx
+, autoconf, automake, coreutils, fetchpatch, fetchurl, perl, python3, m4, sphinx, xattr
 , bash
 
 , libiconv ? null, ncurses
@@ -135,12 +135,12 @@ let
 
 in
 stdenv.mkDerivation (rec {
-  version = "8.10.4";
+  version = "8.10.6";
   name = "${targetPrefix}ghc-${version}";
 
   src = fetchurl {
     url = "https://downloads.haskell.org/ghc/${version}/ghc-${version}-src.tar.xz";
-    sha256 = "03li4k10hxgyxcdyyz2092wx09spr1599hi0sxbh4m889qdqgbsj";
+    sha256 = "43afba72a533408b42c1492bd047b5e37e5f7204e41a5cedd3182cc841610ce9";
   };
 
   enableParallelBuilding = true;
@@ -155,9 +155,6 @@ stdenv.mkDerivation (rec {
     # upstream patch. Don't forget to check backport status of the upstream patch
     # when adding new GHC releases in nixpkgs.
     ./respect-ar-path.patch
-    # Fix documentation configuration which causes a syntax error with sphinx 4.*
-    # See https://gitlab.haskell.org/ghc/ghc/-/issues/19962, remove at 8.10.6.
-    ./sphinx-4-configuration.patch
   ] ++ lib.optionals stdenv.isDarwin [
     # Make Block.h compile with c++ compilers. Remove with the next release
     (fetchpatch {
@@ -192,6 +189,9 @@ stdenv.mkDerivation (rec {
     export NIX_LDFLAGS+=" -rpath $out/lib/ghc-${version}"
   '' + lib.optionalString stdenv.isDarwin ''
     export NIX_LDFLAGS+=" -no_dtrace_dof"
+
+    # GHC tries the host xattr /usr/bin/xattr by default which fails since it expects python to be 2.7
+    export XATTR=${lib.getBin xattr}/bin/xattr
   '' + lib.optionalString targetPlatform.useAndroidPrebuilt ''
     sed -i -e '5i ,("armv7a-unknown-linux-androideabi", ("e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", "cortex-a8", ""))' llvm-targets
   '' + lib.optionalString targetPlatform.isMusl ''
diff --git a/pkgs/development/tools/haskell/haskell-language-server/withWrapper.nix b/pkgs/development/tools/haskell/haskell-language-server/withWrapper.nix
index 23bd3dd3267f4..3b57693a28c11 100644
--- a/pkgs/development/tools/haskell/haskell-language-server/withWrapper.nix
+++ b/pkgs/development/tools/haskell/haskell-language-server/withWrapper.nix
@@ -1,4 +1,4 @@
-{ lib, supportedGhcVersions ? [ "884" "8104" ], stdenv, haskellPackages
+{ lib, supportedGhcVersions ? [ "884" "8106" ], stdenv, haskellPackages
 , haskell }:
 #
 # The recommended way to override this package is
diff --git a/pkgs/os-specific/darwin/xattr/default.nix b/pkgs/os-specific/darwin/xattr/default.nix
new file mode 100644
index 0000000000000..1aa8b49e88aa8
--- /dev/null
+++ b/pkgs/os-specific/darwin/xattr/default.nix
@@ -0,0 +1,73 @@
+{ lib
+, stdenv
+, fetchzip
+, buildPythonPackage
+, python
+, ed
+, unifdef
+}:
+
+buildPythonPackage rec {
+  pname = "xattr";
+  version = "61.60.1";
+
+  src = fetchzip rec {
+    url = "https://opensource.apple.com/tarballs/python_modules/python_modules-${version}.tar.gz";
+    sha256 = "19kydl7w4vpdi7zmfd5z9vjkq24jfk2cv4j0pppw69j06czhdwwi";
+  };
+
+  sourceRoot = "${src.name}/Modules/xattr-0.6.4";
+  format = "other";
+
+  nativeBuildInputs = [
+    ed
+    unifdef
+  ];
+
+  makeFlags = [
+    "OBJROOT=$(PWD)"
+    "DSTROOT=${placeholder "out"}"
+    "OSL=${placeholder "doc"}/share/xattr/OpenSourceLicenses"
+    "OSV=${placeholder "doc"}/share/xattr/OpenSourceVersions"
+  ];
+
+  # need to use `out` instead of `bin` since buildPythonPackage ignores the latter
+  outputs = [ "out" "doc" "python" ];
+
+  # We need to patch a reference to gnutar in an included Makefile
+  postUnpack = ''
+    chmod u+w $sourceRoot/..
+  '';
+
+  postPatch = ''
+    substituteInPlace ../Makefile.inc --replace gnutar tar
+    substituteInPlace Makefile --replace "/usr" ""
+  '';
+
+  preInstall = ''
+    # prevent setup.py from trying to download setuptools
+    sed -i xattr-*/setup.py -e '/ez_setup/d'
+
+    # create our custom target dirs we patch in
+    mkdir -p "$doc/share/xattr/"OpenSource{Licenses,Versions}
+    mkdir -p "$python/lib/${python.libPrefix}"
+  '';
+
+  # move python package to its own output to reduce clutter
+  postInstall = ''
+    mv "$out/lib/python" "$python/${python.sitePackages}"
+    rmdir "$out/lib"
+  '';
+
+  makeWrapperArgs = [
+    "--prefix" "PYTHONPATH" ":" "${placeholder "python"}/${python.sitePackages}"
+  ];
+
+  meta = with lib; {
+    description = "Display and manipulate extended attributes";
+    license = [ licenses.psfl licenses.mit ]; # see $doc/share/xattr/OpenSourceLicenses
+    maintainers = [ maintainers.sternenseemann ];
+    homepage = "https://opensource.apple.com/source/python_modules/";
+    platforms = lib.platforms.darwin;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5adcfd589b8de..8e4ca985ee92c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11411,7 +11411,7 @@ with pkgs;
 
   # Please update doc/languages-frameworks/haskell.section.md, “Our
   # current default compiler is”, if you bump this:
-  haskellPackages = dontRecurseIntoAttrs haskell.packages.ghc8104;
+  haskellPackages = dontRecurseIntoAttrs haskell.packages.ghc8106;
 
   inherit (haskellPackages) ghc;
 
diff --git a/pkgs/top-level/darwin-packages.nix b/pkgs/top-level/darwin-packages.nix
index a7f29d6726118..2e031e27307a8 100644
--- a/pkgs/top-level/darwin-packages.nix
+++ b/pkgs/top-level/darwin-packages.nix
@@ -156,6 +156,8 @@ impure-cmds // appleSourcePackages // chooseLibs // {
 
   usr-include = callPackage ../os-specific/darwin/usr-include { };
 
+  xattr = pkgs.python3Packages.callPackage ../os-specific/darwin/xattr { };
+
   inherit (pkgs.callPackages ../os-specific/darwin/xcode { })
     xcode_8_1 xcode_8_2
     xcode_9_1 xcode_9_2 xcode_9_4 xcode_9_4_1
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 86a09b4a1fad1..d60c20f38e0d2 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -68,7 +68,7 @@ in {
       buildLlvmPackages = buildPackages.llvmPackages_7;
       llvmPackages = pkgs.llvmPackages_7;
     };
-    ghc8104 = callPackage ../development/compilers/ghc/8.10.4.nix {
+    ghc8106 = callPackage ../development/compilers/ghc/8.10.6.nix {
       # aarch64 ghc865Binary gets SEGVs due to haskell#15449 or similar
       # Musl bindists do not exist for ghc 8.6.5, so we use 8.10.* for them
       bootPkgs = if stdenv.isAarch64 || stdenv.isAarch32 || stdenv.targetPlatform.isMusl then
@@ -76,6 +76,10 @@ in {
         else
           packages.ghc865Binary;
       inherit (buildPackages.python3Packages) sphinx;
+      # Need to use apple's patched xattr until
+      # https://github.com/xattr/xattr/issues/44 and
+      # https://github.com/xattr/xattr/issues/55 are solved.
+      inherit (buildPackages.darwin) xattr;
       buildLlvmPackages = buildPackages.llvmPackages_9;
       llvmPackages = pkgs.llvmPackages_9;
     };
@@ -147,9 +151,9 @@ in {
       ghc = bh.compiler.ghc884;
       compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-8.8.x.nix { };
     };
-    ghc8104 = callPackage ../development/haskell-modules {
-      buildHaskellPackages = bh.packages.ghc8104;
-      ghc = bh.compiler.ghc8104;
+    ghc8106 = callPackage ../development/haskell-modules {
+      buildHaskellPackages = bh.packages.ghc8106;
+      ghc = bh.compiler.ghc8106;
       compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-8.10.x.nix { };
     };
     ghc901 = callPackage ../development/haskell-modules {
diff --git a/pkgs/top-level/release-haskell.nix b/pkgs/top-level/release-haskell.nix
index 400635740eae9..d68b0605dddbd 100644
--- a/pkgs/top-level/release-haskell.nix
+++ b/pkgs/top-level/release-haskell.nix
@@ -50,7 +50,7 @@ let
   # list of all compilers to test specific packages on
   all = with compilerNames; [
     ghc884
-    ghc8104
+    ghc8106
     ghc901
   ];
 
@@ -300,12 +300,12 @@ let
       # package sets (like Cabal, jailbreak-cabal) are
       # working as expected.
       cabal-install = all;
-      Cabal_3_6_0_0 = with compilerNames; [ ghc884 ghc8104 ];
+      Cabal_3_6_0_0 = with compilerNames; [ ghc884 ghc8106 ];
       cabal2nix-unstable = all;
       funcmp = all;
       # Doesn't currently work on ghc-9.0:
       # https://github.com/haskell/haskell-language-server/issues/297
-      haskell-language-server = with compilerNames; [ ghc884 ghc8104 ];
+      haskell-language-server = with compilerNames; [ ghc884 ghc8106 ];
       hoogle = all;
       hsdns = all;
       jailbreak-cabal = all;