Merge 2c6f56d024 into haskell-updates

It's not clear to me whether it is concerning that this test suite
fails.

maintainers/scripts/haskell/eval-pkg-sets.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash
+#!nix-shell -p jq git
+# shellcheck shell=bash
+#
+# Usage: eval-pkg-sets.sh [extra flags for nix-* commands ...]
+#
+# Must be executed in a git checkout of Nixpkgs.
+
+set -euo pipefail
+
+NIXPKGS="$(git rev-parse --show-toplevel)"
+PKGSETS="$(nix-env --readonly-mode --json --drv-path -f "$NIXPKGS" -qaP -A haskell.compiler "$@" \
+  | jq -r 'to_entries | unique_by(.value.drvPath) .[] .key | sub("^haskell.compiler";"haskell.packages")')"
+
+trap 'exit 1' SIGINT SIGTERM
+
+set +e
+
+badsets=""
+for set in $PKGSETS; do
+  # Confirm an equivalent package set to haskell.compiler.$entry exists and is usable
+  if ! nix-instantiate --readonly-mode -A "$set.ghc" "$@" > /dev/null 2>&1; then
+    echo "Skipping $set... ($set.ghc does not evaluate)"
+  else
+    echo "Evaluating $set..."
+
+    if ! nix-env --readonly-mode -f "$NIXPKGS" -qaP --drv-path -A "$set" "$@" > /dev/null; then
+      badsets+="$set "
+    fi
+  fi
+done
+
+if [ -n "$badsets" ]; then
+  echo "Found potential eval issues in the following sets:" >&2
+  # shellcheck disable=SC2086
+  printf '%s\n' $badsets
+  exit 1
+fi

maintainers/scripts/haskell/update-stackage.sh

@@ -33,7 +33,7 @@ fi
 
 # Stackage solver to use, LTS or Nightly
 # (should be capitalized like the display name)
-SOLVER=LTS
+SOLVER=Nightly
 # Stackage solver version, if any. Use latest if empty
 VERSION=
 TMP_TEMPLATE=update-stackage.XXXXXXX
@@ -105,6 +105,7 @@ sed -r \
     -e '/ hledger-ui /d' \
     -e '/ hledger-web /d' \
     -e '/ spacecookie /d' \
+    -e '/ hnix-store-core /d' \
     < "${tmpfile_new}" >> $stackage_config
 # Explanations:
 # cabal2nix, distribution-nixpkgs, jailbreak-cabal, language-nix: These are our packages and we know what we are doing.

pkgs/by-name/ko/koka/package.nix

@@ -68,7 +68,7 @@ haskellPackages.mkDerivation {
     hashable
     isocline
     lens
-    lsp_2_8_0_0
+    lsp
     mtl
     network
     network-simple

pkgs/by-name/mk/mkjson/generated.nix

@@ -1,7 +1,7 @@
 {
   mkDerivation,
   lib,
-  fetchFromGitHub,
+  fetchFromCodeberg,
   aeson,
   base,
   bytestring,
@@ -26,7 +26,7 @@
 mkDerivation rec {
   pname = "mkjson";
   version = "0.4.0";
-  src = fetchFromGitHub {
+  src = fetchFromCodeberg {
     owner = "mfussenegger";
     repo = "mkjson";
     rev = "${version}";

pkgs/by-name/mk/mkjson/package.nix

@@ -1,2 +1,19 @@
-{ haskell, haskellPackages }:
-haskell.lib.justStaticExecutables (haskellPackages.callPackage ./generated.nix { })
+{
+  haskell,
+  haskellPackages,
+  lib,
+}:
+let
+  inherit (haskell.lib.compose) justStaticExecutables overrideCabal;
+
+  # The mkjson-doctest suite depends on specific RNG results not provided by the
+  # GHC in Nixpkgs as of this writing.
+  overrides = {
+    testTargets = [ "mkjson-test" ];
+  };
+  raw-pkg = haskellPackages.callPackage ./generated.nix { };
+in
+lib.pipe raw-pkg [
+  (overrideCabal overrides)
+  justStaticExecutables
+]

pkgs/data/misc/hackage/pin.json

@@ -1,6 +1,6 @@
 {
-  "commit": "3a3b69bdd8114e4503dc8cb9909a3b0ea32e6be6",
-  "url": "https://github.com/commercialhaskell/all-cabal-hashes/archive/3a3b69bdd8114e4503dc8cb9909a3b0ea32e6be6.tar.gz",
-  "sha256": "1qjd5gp9d4r4y6qjf52m7w9dzy9nq622aqv72ma8d4xlrxrrachp",
-  "msg": "Update from Hackage at 2026-04-24T19:35:23Z"
+  "commit": "128a44ac0b050c18f374382cb58308863a87c8ae",
+  "url": "https://github.com/commercialhaskell/all-cabal-hashes/archive/128a44ac0b050c18f374382cb58308863a87c8ae.tar.gz",
+  "sha256": "017146ry5w7jqqdx3xgqwfam3nn0754hv6gmsjv5n00d7hkqz1pi",
+  "msg": "Update from Hackage at 2026-08-09T03:01:25Z"
 }

pkgs/development/compilers/elm/packages/ghc9_8/default.nix

@@ -51,6 +51,11 @@ pkgs.haskell.packages.ghc98.override {
         # https://github.com/avh4/elm-format/blob/e7e5da37716acbfb4954a88128b5cc72b2c911d9/package/nix/generate_derivation.sh
         elm-format = justStaticExecutables (
           overrideCabal (drv: {
+            # jailbreak required due to optparse-applicative bounds
+            # optparse-applicative >=0.17.0.0 && <0.19
+            # upstream PR https://github.com/avh4/elm-format/pull/841
+            jailbreak = true;
+
             postPatch = ''
               mkdir -p ./generated
               cat <<EOHS > ./generated/Build_elm_format.hs
@@ -77,8 +82,14 @@ pkgs.haskell.packages.ghc98.override {
       inherit elmPkgs;
 
       # Needed for elm-format
+
       avh4-lib = self.callPackage ./elm-format/avh4-lib.nix { };
-      elm-format-lib = self.callPackage ./elm-format/elm-format-lib.nix { };
+      # jailbreak required due to optparse-applicative bounds
+      # optparse-applicative >=0.17.0.0 && <0.19
+      # upstream PR https://github.com/avh4/elm-format/pull/841
+      elm-format-lib = pkgs.haskell.lib.doJailbreak (
+        self.callPackage ./elm-format/elm-format-lib.nix { }
+      );
       elm-format-test-lib = self.callPackage ./elm-format/elm-format-test-lib.nix { };
       elm-format-markdown = self.callPackage ./elm-format/elm-format-markdown.nix { };
     };

pkgs/development/compilers/ghc/9.12.5.nix

@@ -0,0 +1,5 @@
+import ./common-hadrian.nix {
+  version = "9.12.4.20260713";
+  url = "https://downloads.haskell.org/~ghc/9.12.5-rc3/ghc-9.12.4.20260713-src.tar.gz";
+  sha256 = "cc77cff2014dd99c16c9f311f7558d9a11aa3c3a2dee47425b109c3dac35338c";
+}

pkgs/development/compilers/ghc/9.14.2.nix

@@ -0,0 +1,5 @@
+import ./common-hadrian.nix {
+  url = "https://downloads.haskell.org/~ghc/9.14.2-rc1/ghc-9.14.1.20260728-src.tar.xz";
+  version = "9.14.1.20260728";
+  sha256 = "015543170af3ca4bf3b2c4112a207b4738be72243883cb0dbbe673bcc316a04f";
+}

pkgs/development/compilers/ghc/common-hadrian.nix

@@ -118,6 +118,7 @@
         # While split sections are now enabled by default in ghc 8.8 for windows,
         # they seem to lead to `too many sections` errors when building base for
         # profiling.
+        # TODO(@alexfmpe): test split sections again with GHC 9.14.2
         ++ (if stdenv.targetPlatform.isWindows then [ "no_split_sections" ] else [ "split_sections" ]);
     in
     baseFlavour + lib.concatMapStrings (t: "+${t}") transformers,
@@ -309,34 +310,21 @@
       ]
 
       # Fix docs build with Sphinx >= 9 https://gitlab.haskell.org/ghc/ghc/-/issues/26810
-      ++
-        lib.optionals
-          (
-            lib.versionOlder version "9.12.4"
-            || (lib.versionAtLeast version "9.14" && lib.versionOlder version "9.15.20260129")
-          )
-          [
-            ./ghc-9.6-or-later-docs-sphinx-9.patch
-          ]
+      ++ lib.optionals (lib.versionOlder version "9.12.4" || version == "9.14.1") [
+        ./ghc-9.6-or-later-docs-sphinx-9.patch
+      ]
 
       # Fixes rts/Types.h missing from the install when targeting javascript
       # See https://gitlab.haskell.org/ghc/ghc/-/merge_requests/15740, krank:ignore-line
       # https://gitlab.haskell.org/ghc/ghc/-/issues/27033. krank:ignore-line
-      ++
-        lib.optionals
-          (
-            version == "9.12.3"
-            # TODO(@sternenseemann): 9.14.2 will likely also have this patch
-            || (lib.versionAtLeast version "9.14" && lib.versionOlder version "9.15.20260127")
-          )
-          [
-            (fetchpatch {
-              name = "ghc-9.12.3-ghcjs-install-rts-types.h.patch";
-              url = "https://gitlab.haskell.org/ghc/ghc/-/commit/5b1be555be4f0989d78c274991c5046d7ac6d25e.patch";
-              hash = "sha256-pv4NDyQ6FlZgmTYZ4Ghis4qggt7nCDMhqGaFxTxVPac=";
-              includes = [ "rts/rts.cabal" ];
-            })
-          ]
+      ++ lib.optionals (version == "9.12.3" || version == "9.14.1") [
+        (fetchpatch {
+          name = "ghc-9.12.3-ghcjs-install-rts-types.h.patch";
+          url = "https://gitlab.haskell.org/ghc/ghc/-/commit/5b1be555be4f0989d78c274991c5046d7ac6d25e.patch";
+          hash = "sha256-pv4NDyQ6FlZgmTYZ4Ghis4qggt7nCDMhqGaFxTxVPac=";
+          includes = [ "rts/rts.cabal" ];
+        })
+      ]
 
       ++ (import ./common-llvm-patches.nix { inherit lib version fetchpatch; });
 
@@ -855,16 +843,6 @@ stdenv.mkDerivation (
     preInstall = ''
       pushd _build/bindist/*
 
-    ''
-    # the bindist configure script uses different env variables than the GHC configure script
-    # see https://github.com/NixOS/nixpkgs/issues/267250 krank:ignore-line
-    # https://gitlab.haskell.org/ghc/ghc/-/issues/24211  krank:ignore-line
-    + lib.optionalString (stdenv.targetPlatform.linker == "cctools") ''
-      export InstallNameToolCmd=$INSTALL_NAME_TOOL
-      export OtoolCmd=$OTOOL
-    ''
-    # Replicate configurePhase
-    + ''
       $configureScript "''${configureFlags[@]}"
     '';
 

pkgs/development/compilers/ghc/head.nix

@@ -1,5 +1,5 @@
 import ./common-hadrian.nix {
-  version = "9.15.20260322";
-  rev = "44f118f09dcde49f64d03e427312df4732f2d4a4";
-  sha256 = "sha256-xby7HKyK5P1Y5DjKbVe62piDCY4Ujb4pbv8AJ7sQ0HI=";
+  version = "10.1.20260810";
+  rev = "556db2f32f59ec2d3b1c225d24d677c60a695e3f";
+  sha256 = "sha256-lB4udTc9hQZEnldmvpllDkCtUVte65/ZMhZd7rf5xOY=";
 }

pkgs/development/haskell-modules/cabal2nix-unstable/cabal2nix.nix

@@ -35,10 +35,10 @@
 }:
 mkDerivation {
   pname = "cabal2nix";
-  version = "2.21.3-unstable-2026-03-30";
+  version = "2.21.3-unstable-2026-06-23";
   src = fetchzip {
-    url = "https://github.com/NixOS/cabal2nix/archive/41239bcc0622a0975c6705a03a44dfeffeb56f23.tar.gz";
-    sha256 = "01qj6cvaif0810v83r6izcj1bbfpcqqxw4wybq04qsq92sqybpw2";
+    url = "https://github.com/NixOS/cabal2nix/archive/bb97bf4294097812718ab9a3f244c9d58c833ae1.tar.gz";
+    sha256 = "0bp5m83hzcsr3ga9zz5kq1jjs0n44mlh93x5j55avgw1rxvpfw32";
   };
   postUnpack = "sourceRoot+=/cabal2nix; echo source root reset to $sourceRoot";
   isLibrary = true;
@@ -106,5 +106,5 @@ mkDerivation {
   '';
   homepage = "https://github.com/nixos/cabal2nix#readme";
   description = "Convert Cabal files into Nix build instructions";
-  license = lib.licensesSpdx."BSD-3-Clause";
+  license = lib.meta.getLicenseFromSpdxId "BSD-3-Clause";
 }

pkgs/development/haskell-modules/cabal2nix-unstable/distribution-nixpkgs.nix

@@ -18,10 +18,10 @@
 }:
 mkDerivation {
   pname = "distribution-nixpkgs";
-  version = "1.7.1.1-unstable-2026-03-30";
+  version = "1.7.1.1-unstable-2026-06-23";
   src = fetchzip {
-    url = "https://github.com/NixOS/cabal2nix/archive/41239bcc0622a0975c6705a03a44dfeffeb56f23.tar.gz";
-    sha256 = "01qj6cvaif0810v83r6izcj1bbfpcqqxw4wybq04qsq92sqybpw2";
+    url = "https://github.com/NixOS/cabal2nix/archive/bb97bf4294097812718ab9a3f244c9d58c833ae1.tar.gz";
+    sha256 = "0bp5m83hzcsr3ga9zz5kq1jjs0n44mlh93x5j55avgw1rxvpfw32";
   };
   postUnpack = "sourceRoot+=/distribution-nixpkgs; echo source root reset to $sourceRoot";
   enableSeparateDataOutput = true;
@@ -49,5 +49,5 @@ mkDerivation {
   ];
   homepage = "https://github.com/NixOS/cabal2nix/tree/master/distribution-nixpkgs#readme";
   description = "Types and functions to manipulate the Nixpkgs distribution";
-  license = lib.licensesSpdx."BSD-3-Clause";
+  license = lib.meta.getLicenseFromSpdxId "BSD-3-Clause";
 }

pkgs/development/haskell-modules/cabal2nix-unstable/hackage-db.nix

@@ -16,10 +16,10 @@
 }:
 mkDerivation {
   pname = "hackage-db";
-  version = "2.1.3-unstable-2026-03-30";
+  version = "2.1.3-unstable-2026-06-23";
   src = fetchzip {
-    url = "https://github.com/NixOS/cabal2nix/archive/41239bcc0622a0975c6705a03a44dfeffeb56f23.tar.gz";
-    sha256 = "01qj6cvaif0810v83r6izcj1bbfpcqqxw4wybq04qsq92sqybpw2";
+    url = "https://github.com/NixOS/cabal2nix/archive/bb97bf4294097812718ab9a3f244c9d58c833ae1.tar.gz";
+    sha256 = "0bp5m83hzcsr3ga9zz5kq1jjs0n44mlh93x5j55avgw1rxvpfw32";
   };
   postUnpack = "sourceRoot+=/hackage-db; echo source root reset to $sourceRoot";
   isLibrary = true;
@@ -38,5 +38,5 @@ mkDerivation {
   ];
   homepage = "https://github.com/NixOS/cabal2nix/tree/master/hackage-db#readme";
   description = "Access cabal-install's Hackage database via Data.Map";
-  license = lib.licensesSpdx."BSD-3-Clause";
+  license = lib.meta.getLicenseFromSpdxId "BSD-3-Clause";
 }

pkgs/development/haskell-modules/cabal2nix-unstable/language-nix.nix

@@ -14,10 +14,10 @@
 }:
 mkDerivation {
   pname = "language-nix";
-  version = "2.3.0-unstable-2026-03-30";
+  version = "2.3.0-unstable-2026-06-23";
   src = fetchzip {
-    url = "https://github.com/NixOS/cabal2nix/archive/41239bcc0622a0975c6705a03a44dfeffeb56f23.tar.gz";
-    sha256 = "01qj6cvaif0810v83r6izcj1bbfpcqqxw4wybq04qsq92sqybpw2";
+    url = "https://github.com/NixOS/cabal2nix/archive/bb97bf4294097812718ab9a3f244c9d58c833ae1.tar.gz";
+    sha256 = "0bp5m83hzcsr3ga9zz5kq1jjs0n44mlh93x5j55avgw1rxvpfw32";
   };
   postUnpack = "sourceRoot+=/language-nix; echo source root reset to $sourceRoot";
   libraryHaskellDepends = [
@@ -39,5 +39,5 @@ mkDerivation {
   ];
   homepage = "https://github.com/NixOS/cabal2nix/tree/master/language-nix#readme";
   description = "Data types and functions to represent the Nix language";
-  license = lib.licensesSpdx."BSD-3-Clause";
+  license = lib.meta.getLicenseFromSpdxId "BSD-3-Clause";
 }

pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix

@@ -37,4 +37,21 @@ self: super: {
   unix = null;
   xhtml = null;
   Win32 = null;
+
+  # core pkgs on later GHCs that we can reasonably provide a stub
+  # or Hackage released version for (though they may not build).
+  Cabal-syntax = self.Cabal-syntax_3_6_0_0;
+  semaphore-compat = self.semaphore-compat_2_0_1;
+  os-string = self.os-string_2_0_11;
+  file-io = self.file-io_0_2_0;
+  # Would need 2.25.*, but let's not bother
+  haddock-api = self.haddock-api_2_29_1;
+  haddock-library = self.haddock-library_1_11_0;
+
+  # core pkgs on later GHCs we can't provide at all
+  system-cxx-std-lib = null;
+  ghc-experimental = null;
+  ghc-internal = null;
+  ghc-platform = null;
+  ghc-toolchain = null;
 }

pkgs/development/haskell-modules/configuration-ghc-9.10.x.nix

@@ -65,54 +65,16 @@ in
   xhtml = null;
   Win32 = null;
 
+  # Become core packages in GHC >= 9.12
+  file-io = doDistribute self.file-io_0_2_0;
+  haddock-api = markBroken self.haddock-api_2_29_1; # no compatible release available
+  haddock-library = doJailbreak (doDistribute self.haddock-library_1_11_0);
+
+  ghc-exactprint = doDistribute self.ghc-exactprint_1_10_0_0;
+
   # “Unfortunately we are unable to support GHC 9.10.”
   apply-refact = dontDistribute (markBroken super.apply-refact);
 
-  stack =
-    # Setup.hs depends on Cabal-syntax >= 3.14
-    overrideCabal
-      (drv: {
-        setupHaskellDepends = drv.setupHaskellDepends or [ ] ++ [
-          self.Cabal-syntax_3_14_2_0
-          self.Cabal_3_14_2_0
-        ];
-        # We need to tell GHC to ignore the Cabal core libraries while
-        # compiling Setup.hs since it depends on Cabal >= 3.14.
-        # ATTN: This override assumes we are using GHC 9.10.3 since we need
-        # to give an exact Cabal version at the GHC (!) command line.
-        # FIXME(@sternenseemann): make direct argument to generic-builder.nix
-        env = drv.env or { } // {
-          setupCompileFlags = lib.concatStringsSep " " [
-            "-hide-package"
-            "Cabal-syntax-3.12.1.0"
-            "-hide-package"
-            "Cabal-3.12.1.0"
-          ];
-        };
-      })
-
-      # Stack itself depends on Cabal >= 3.14 which also needs to be updated for deps
-      (
-        super.stack.overrideScope (
-          sself: ssuper:
-          let
-            upgradeCabal =
-              drv:
-              lib.pipe drv [
-                (addBuildDepends [ sself.Cabal_3_14_2_0 ])
-                (appendConfigureFlags [ "--constraint=Cabal>=3.14" ])
-              ];
-          in
-          {
-            pantry = upgradeCabal ssuper.pantry_0_11_2;
-            rio-prettyprint = upgradeCabal ssuper.rio-prettyprint;
-            hackage-security = upgradeCabal ssuper.hackage-security;
-            hpack = upgradeCabal sself.hpack_0_39_1;
-            stack = upgradeCabal ssuper.stack;
-          }
-        )
-      );
-
   #
   # Version upgrades
   #
@@ -124,10 +86,6 @@ in
   # Jailbreaks
   #
   floskell = doJailbreak super.floskell; # base <4.20
-  # 2025-04-09: filepath <1.5
-  haddock-library =
-    assert super.haddock-library.version == "1.11.0";
-    doJailbreak super.haddock-library;
   tree-sitter = doJailbreak super.tree-sitter; # containers <0.7, filepath <1.5
 
   #

pkgs/development/haskell-modules/configuration-ghc-9.12.x.nix

@@ -73,7 +73,6 @@ with haskellLib;
   #
 
   extensions = doDistribute self.extensions_0_1_1_0;
-  ghc-exactprint = doDistribute self.ghc-exactprint_1_12_0_0;
 
   #
   # Jailbreaks
@@ -87,15 +86,6 @@ with haskellLib;
     '';
   }) super.cpphs;
   cabal-install-parsers = doJailbreak super.cabal-install-parsers; # base, Cabal-syntax, etc.
-  ghc-exactprint_1_12_0_0 = addBuildDepends [
-    # cabal2nix drops conditional block: impl (ghc >= 9.12)
-    self.Diff
-    self.extra
-    self.ghc-paths
-    self.silently
-    self.syb
-    self.HUnit
-  ] super.ghc-exactprint_1_12_0_0;
   timezone-series = doJailbreak super.timezone-series; # time <1.14
   timezone-olson = doJailbreak super.timezone-olson; # time <1.14
   cabal-plan = doJailbreak super.cabal-plan; # base <4.21
@@ -122,9 +112,6 @@ with haskellLib;
     '';
   }) super.alex;
 
-  # https://github.com/sjakobi/newtype-generics/pull/28/files
-  newtype-generics = warnAfterVersion "0.6.2" (doJailbreak super.newtype-generics);
-
   # Test failure because of GHC bug:
   #   https://gitlab.haskell.org/ghc/ghc/-/issues/25937
   #   https://github.com/sol/interpolate/issues/20

pkgs/development/haskell-modules/configuration-ghc-9.14.x.nix

@@ -76,18 +76,18 @@ with haskellLib;
 
   scrod = doDistribute (unmarkBroken super.scrod);
 
+  # haskell-debugger only works with ghc 9.14+
+  haskell-debugger-view = doDistribute (unmarkBroken super.haskell-debugger-view);
+  haskell-debugger = doDistribute (doJailbreak super.haskell-debugger); # hie-bios < 0.18, random >=1.3.1
+
   #
   # Version upgrades
   #
 
-  ghc-exactprint = doDistribute self.ghc-exactprint_1_14_0_0;
-  hedgehog = doDistribute self.hedgehog_1_7;
-  hie-bios = doDistribute (dontCheck self.hie-bios_0_19_0); # Tests access homeless-shelter.
-  lifted-async = doDistribute self.lifted-async_0_11_0;
-  parallel = doDistribute self.parallel_3_3_0_0;
-  tagged = doDistribute self.tagged_0_8_10;
-  unordered-containers = doDistribute self.unordered-containers_0_2_21;
-  HTTP = doDistribute self.HTTP_4000_5_0;
+  ghc-exactprint = doDistribute self.ghc-exactprint_1_14_1_0;
+  ghc-lib = doDistribute self.ghc-lib_9_14_1_20251220;
+  ghc-lib-parser = doDistribute self.ghc-lib-parser_9_14_1_20251220;
+  ghc-lib-parser-ex = doDistribute self.ghc-lib-parser-ex_9_14_2_0;
 
   #
   # Jailbreaks
@@ -134,22 +134,31 @@ with haskellLib;
     ] super.serialise
   );
 
-  # https://github.com/sjakobi/newtype-generics/pull/28/files
-  newtype-generics = warnAfterVersion "0.6.2" (doJailbreak super.newtype-generics);
+  # https://github.com/maoe/ghc-trace-events/pull/17
+  ghc-trace-events = doJailbreak super.ghc-trace-events; # base < 4.22
+  # HLS, for some reason, decided to remove the hie-compat library from its tree
+  # in https://github.com/haskell/haskell-language-server/pull/4613
+  # even though hiedb (a dependency of HLS) unconditionally depends on it
+  # for all GHC versions. As a result, no one has updated the base bound
+  # of hie-compat to allow building it with GHC 9.14 neither in tree
+  # (which no longer exists) nor on Hackage. Instead, HLS is updating their
+  # cabal.project: https://github.com/haskell/haskell-language-server/blob/a4cfaa80ca94beded6f01547a161b37be7b33558/cabal.project#L78
+  hie-compat = doJailbreak super.hie-compat; # base < 4.22
 
-  # haskell-debugger only works with ghc 9.14+
-  haskell-debugger-view = doDistribute (unmarkBroken super.haskell-debugger-view);
-  haskell-debugger = doDistribute (doJailbreak super.haskell-debugger); # hie-bios < 0.18, random >=1.3.1
-
-  ghc-exactprint_1_14_0_0 = addBuildDepends [
+  ghc-exactprint_1_14_1_0 = addBuildDepends [
     # cabal2nix drops conditional block: impl (ghc >= 9.14)
+    self.containers
     self.Diff
-    self.extra
+    self.directory
+    self.filepath
     self.ghc-paths
     self.silently
     self.syb
     self.HUnit
-  ] super.ghc-exactprint_1_14_0_0;
+  ] super.ghc-exactprint_1_14_1_0;
+
+  ormolu = doDistribute self.ormolu_0_8_2_0;
+  fourmolu = doDistribute self.fourmolu_0_20_1_0;
 
   #
   # Test suite issues
@@ -157,6 +166,15 @@ with haskellLib;
 
   # Fails to compile with GHC 9.14 https://github.com/snoyberg/mono-traversable/pull/261
   mono-traversable = dontCheck super.mono-traversable;
+  # doctests broke with GHC 9.14, something to do with error messages
+  # https://github.com/kcsongor/generic-lens/issues/174
+  generic-lens = overrideCabal {
+    testTargets = [
+      "generic-lens-bifunctor"
+      "inspection-tests"
+      "generic-lens-syb-tree"
+    ];
+  } super.generic-lens;
 
   # Too strict bound on containers in test suite
   # https://github.com/jaspervdj/blaze-markup/issues/69

pkgs/development/haskell-modules/configuration-ghc-9.4.x.nix

@@ -49,14 +49,21 @@ self: super: {
   unix = null;
   # GHC only bundles the xhtml library if haddock is enabled, check if this is
   # still the case when updating: https://gitlab.haskell.org/ghc/ghc/-/blob/0198841877f6f04269d6050892b98b5c3807ce4c/ghc.mk#L463
-  xhtml = if self.ghc.hasHaddock or true then null else doDistribute self.xhtml_3000_4_0_0;
+  xhtml = if self.ghc.hasHaddock or true then null else doDistribute self.xhtml_3000_4_1_0;
   Win32 = null;
 
   # Becomes a core package in GHC >= 9.8
-  semaphore-compat = doDistribute self.semaphore-compat_1_0_0;
+  semaphore-compat = doDistribute self.semaphore-compat_2_0_1;
 
   # Becomes a core package in GHC >= 9.10
-  os-string = doDistribute self.os-string_2_0_10;
+  os-string = doDistribute self.os-string_2_0_11;
+
+  # Become core packages in GHC >= 9.12
+  haddock-library = doDistribute (doJailbreak self.haddock-library_1_11_0);
+  haddock-api = doDistribute (doJailbreak self.haddock-api_2_27_0);
+
+  # Becomes a core package in GHC >= 9.12, but needs unix >= 2.8
+  file-io = null;
 
   # Become core packages in GHC >= 9.10, no release compatible with GHC < 9.10 is available
   ghc-experimental = null;
@@ -97,9 +104,6 @@ self: super: {
     ++ drv.testFlags or [ ];
   }) (doJailbreak super.hpack);
 
-  # Later versions require unix >= 2.8 which is tricky to provide with GHC 9.4
-  crypton-x509-store = doDistribute self.crypton-x509-store_1_6_11;
-
   # 2022-08-01: Tests are broken on ghc 9.2.4: https://github.com/wz1000/HieDb/issues/46
   hiedb = dontCheck super.hiedb;
 
@@ -138,7 +142,6 @@ self: super: {
   # https://github.com/kowainik/relude/issues/436
   relude = dontCheck super.relude;
 
-  haddock-library = doJailbreak super.haddock-library;
   path = self.path_0_9_5;
 
   haskell-language-server =
@@ -170,4 +173,5 @@ self: super: {
 
   # Too strict lower bound on base
   primitive-addr = doJailbreak super.primitive-addr;
+  base64 = doJailbreak super.base64;
 }

pkgs/development/haskell-modules/configuration-ghc-9.6.x.nix

@@ -64,10 +64,10 @@ in
   iserv-proxy = addBuildDepend self.libiserv super.iserv-proxy;
 
   # Becomes a core package in GHC >= 9.8
-  semaphore-compat = doDistribute self.semaphore-compat_1_0_0;
+  semaphore-compat = doDistribute self.semaphore-compat_2_0_1;
 
   # Becomes a core package in GHC >= 9.10
-  os-string = doDistribute self.os-string_2_0_10;
+  os-string = doDistribute self.os-string_2_0_11;
 
   # Become core packages in GHC >= 9.10, no release compatible with GHC < 9.10 is available
   ghc-experimental = null;
@@ -76,6 +76,11 @@ in
   ghc-toolchain = null;
   ghc-platform = null;
 
+  # Become core packages in GHC >= 9.12
+  file-io = doDistribute self.file-io_0_2_0;
+  haddock-api = doDistribute (doJailbreak self.haddock-api_2_29_1);
+  haddock-library = doJailbreak (doDistribute self.haddock-library_1_11_0);
+
   # Needs base-orphans for GHC < 9.8 / base < 4.19
   some = addBuildDepend self.base-orphans super.some;
 
@@ -105,9 +110,6 @@ in
   cabal-install-solver = doJailbreak super.cabal-install-solver;
   cabal-install = doJailbreak super.cabal-install;
 
-  # Forbids base >= 4.18, fix proposed: https://github.com/sjakobi/newtype-generics/pull/25
-  newtype-generics = warnAfterVersion "0.6.2" (doJailbreak super.newtype-generics);
-
   # Jailbreaks for servant <0.20
   servant-lucid = doJailbreak super.servant-lucid;
 
@@ -208,7 +210,6 @@ in
   ghc-lib = doDistribute self.ghc-lib_9_8_5_20250214;
   ghc-lib-parser = doDistribute self.ghc-lib-parser_9_8_5_20250214;
   ghc-lib-parser-ex = doDistribute self.ghc-lib-parser-ex_9_8_0_2;
-  haddock-library = doJailbreak super.haddock-library;
   inherit
     (
       let
@@ -227,13 +228,16 @@ in
           self.retrie
           self.floskell
           self.markdown-unlit
+          self.stan
+          self.trial
         ] super.haskell-language-server;
         hls-plugin-api = super.hls-plugin-api;
         hlint = self.hlint_3_8;
         lsp-types = super.lsp-types;
-        ormolu = self.ormolu_0_7_4_0;
+        ormolu = doJailbreak self.ormolu_0_7_4_0;
         retrie = doJailbreak (unmarkBroken super.retrie);
-        stylish-haskell = self.stylish-haskell_0_14_6_0;
+        stan = super.stan;
+        stylish-haskell = doJailbreak self.stylish-haskell_0_14_6_0;
       }
     )
     apply-refact
@@ -246,6 +250,7 @@ in
     lsp-types
     ormolu
     retrie
+    stan
     stylish-haskell
     ;
 }

pkgs/development/haskell-modules/configuration-ghc-9.8.x.nix

@@ -64,7 +64,7 @@ in
   Win32 = null;
 
   # Becomes a core package in GHC >= 9.10
-  os-string = doDistribute self.os-string_2_0_10;
+  os-string = doDistribute self.os-string_2_0_11;
 
   # Become core packages in GHC >= 9.10, no release compatible with GHC < 9.10 is available
   ghc-experimental = null;
@@ -73,6 +73,11 @@ in
   ghc-toolchain = null;
   ghc-platform = null;
 
+  # Become core packages in GHC >= 9.12
+  file-io = doDistribute self.file-io_0_2_0;
+  haddock-api = markBroken self.haddock-api_2_29_1; # no compatible release available
+  haddock-library = doJailbreak (doDistribute self.haddock-library_1_11_0);
+
   #
   # Version upgrades
   #
@@ -106,7 +111,6 @@ in
   # A given major version of ghc-exactprint only supports one version of GHC.
   ghc-exactprint = doDistribute super.ghc-exactprint_1_8_0_0;
 
-  haddock-library = doJailbreak super.haddock-library;
   ghc-lib = doDistribute self.ghc-lib_9_8_5_20250214;
   ghc-lib-parser = doDistribute self.ghc-lib-parser_9_8_5_20250214;
   ghc-lib-parser-ex = doDistribute self.ghc-lib-parser-ex_9_8_0_2;
@@ -128,13 +132,16 @@ in
           self.retrie
           self.floskell
           self.markdown-unlit
+          self.stan
+          self.trial
         ] super.haskell-language-server;
         hls-plugin-api = super.hls-plugin-api;
         hlint = self.hlint_3_8;
         lsp-types = super.lsp-types;
-        ormolu = self.ormolu_0_7_4_0;
+        ormolu = doJailbreak self.ormolu_0_7_4_0;
         retrie = doJailbreak (unmarkBroken super.retrie);
-        stylish-haskell = self.stylish-haskell_0_14_6_0;
+        stan = super.stan;
+        stylish-haskell = doJailbreak self.stylish-haskell_0_14_6_0;
       }
     )
     apply-refact
@@ -147,6 +154,7 @@ in
     lsp-types
     ormolu
     retrie
+    stan
     stylish-haskell
     ;
 }

pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml

@@ -161,7 +161,6 @@ broken-packages:
   - amazonka-dynamodb-streams # failure in job https://hydra.nixos.org/build/295091422 at 2025-04-22
   - amazonka-iam-policy # failure in job https://hydra.nixos.org/build/233233098 at 2023-09-02
   - amazonka-mtl # failure in job https://hydra.nixos.org/build/295091544 at 2025-04-22
-  - amazonka-s3-encryption # failure in job https://hydra.nixos.org/build/295091601 at 2025-04-22
   - AMI # failure in job https://hydra.nixos.org/build/233232505 at 2023-09-02
   - ampersand # failure in job https://hydra.nixos.org/build/315094859 at 2025-11-29
   - amqp-conduit # failure in job https://hydra.nixos.org/build/233228080 at 2023-09-02
@@ -2409,7 +2408,6 @@ broken-packages:
   - HackMail # failure in job https://hydra.nixos.org/build/233215224 at 2023-09-02
   - hactor # failure in job https://hydra.nixos.org/build/233254977 at 2023-09-02
   - hactors # failure in job https://hydra.nixos.org/build/233218599 at 2023-09-02
-  - haddock-api # failure in job https://hydra.nixos.org/build/233216515 at 2023-09-02
   - haddock-leksah # failure in job https://hydra.nixos.org/build/233206878 at 2023-09-02
   - haddock-test # failure in job https://hydra.nixos.org/build/233246641 at 2023-09-02
   - hadoop-formats # failure in job https://hydra.nixos.org/build/233224647 at 2023-09-02
@@ -2628,7 +2626,6 @@ broken-packages:
   - hasql-explain-tests # failure in job https://hydra.nixos.org/build/233247034 at 2023-09-02
   - hasql-generate # failure in job https://hydra.nixos.org/build/324107360 at 2026-03-15
   - hasql-generic # failure in job https://hydra.nixos.org/build/233204654 at 2023-09-02
-  - hasql-mapping # failure in job https://hydra.nixos.org/build/324107379 at 2026-03-15
   - hasql-migration # failure in job https://hydra.nixos.org/build/295094132 at 2025-04-22
   - hasql-mover # failure in job https://hydra.nixos.org/build/295094128 at 2025-04-22
   - hasql-pipes # failure in job https://hydra.nixos.org/build/295094119 at 2025-04-22
@@ -2773,7 +2770,6 @@ broken-packages:
   - hGelf # failure in job https://hydra.nixos.org/build/233203909 at 2023-09-02
   - hgeometric # failure in job https://hydra.nixos.org/build/233197856 at 2023-09-02
   - hgis # failure in job https://hydra.nixos.org/build/233200418 at 2023-09-02
-  - hgmp # failure in job https://hydra.nixos.org/build/307519217 at 2025-09-19
   - hgom # failure in job https://hydra.nixos.org/build/233255569 at 2023-09-02
   - hgopher # failure in job https://hydra.nixos.org/build/233222066 at 2023-09-02
   - HGraphStorage # failure in job https://hydra.nixos.org/build/233217988 at 2023-09-02
@@ -3296,7 +3292,6 @@ broken-packages:
   - ihaskell-parsec # failure in job https://hydra.nixos.org/build/233244271 at 2023-09-02
   - ihaskell-plot # failure in job https://hydra.nixos.org/build/233255936 at 2023-09-02
   - ihaskell-widgets # failure in job https://hydra.nixos.org/build/265955663 at 2024-07-14
-  - ihp-pglistener # failure in job https://hydra.nixos.org/build/325267877 at 2026-04-12
   - illuminate # failure in job https://hydra.nixos.org/build/233219478 at 2023-09-02
   - image-type # failure in job https://hydra.nixos.org/build/233251466 at 2023-09-02
   - imagemagick # failure in job https://hydra.nixos.org/build/233598237 at 2023-09-02
@@ -4087,7 +4082,6 @@ broken-packages:
   - mixpanel-client # failure in job https://hydra.nixos.org/build/233220132 at 2023-09-02
   - mkcabal # failure in job https://hydra.nixos.org/build/233202466 at 2023-09-02
   - ml-w # failure in job https://hydra.nixos.org/build/233251342 at 2023-09-02
-  - mlkem # failure in job https://hydra.nixos.org/build/315098220 at 2025-11-29
   - mltool # failure in job https://hydra.nixos.org/build/233203849 at 2023-09-02
   - mm2 # failure in job https://hydra.nixos.org/build/233260048 at 2023-09-02
   - mmsyn2 # failure in job https://hydra.nixos.org/build/233201519 at 2023-09-02
@@ -4979,7 +4973,6 @@ broken-packages:
   - postgresql-simple-interval # failure in job https://hydra.nixos.org/build/307611243 at 2025-09-19
   - postgresql-simple-named # failure in job https://hydra.nixos.org/build/233202481 at 2023-09-02
   - postgresql-simple-opts # failure in job https://hydra.nixos.org/build/252718901 at 2024-03-16
-  - postgresql-simple-postgresql-types # failure in job https://hydra.nixos.org/build/327522032 at 2026-04-30
   - postgresql-simple-sop # failure in job https://hydra.nixos.org/build/233249757 at 2023-09-02
   - postgresql-simple-url # failure in job https://hydra.nixos.org/build/295096191 at 2025-04-22
   - postgresql-tx # failure in job https://hydra.nixos.org/build/252717914 at 2024-03-16
@@ -5237,7 +5230,6 @@ broken-packages:
   - Range # failure in job https://hydra.nixos.org/build/233235824 at 2023-09-02
   - rangemin # failure in job https://hydra.nixos.org/build/233244031 at 2023-09-02
   - rank-product # failure in job https://hydra.nixos.org/build/233239589 at 2023-09-02
-  - rapid # failure in job https://hydra.nixos.org/build/307521428 at 2025-09-19
   - rapid-term # failure in job https://hydra.nixos.org/build/233251731 at 2023-09-02
   - Rasenschach # failure in job https://hydra.nixos.org/build/234445901 at 2023-09-13
   - rating-chgk-info # failure in job https://hydra.nixos.org/build/233598034 at 2023-09-02
@@ -7445,7 +7437,6 @@ broken-packages:
   - yesod-links # failure in job https://hydra.nixos.org/build/233257763 at 2023-09-02
   - yesod-lucid # failure in job https://hydra.nixos.org/build/233231687 at 2023-09-02
   - yesod-media-simple # failure in job https://hydra.nixos.org/build/307611606 at 2025-09-19
-  - yesod-middleware-csp # failure in job https://hydra.nixos.org/build/295098382 at 2025-04-22
   - yesod-paginate # failure in job https://hydra.nixos.org/build/233218563 at 2023-09-02
   - yesod-pagination # failure in job https://hydra.nixos.org/build/233204022 at 2023-09-02
   - yesod-pnotify # failure in job https://hydra.nixos.org/build/233258047 at 2023-09-02

pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml

@@ -27,19 +27,18 @@
 default-package-overrides:
   - chs-cabal == 0.1.1.2 # matches Cabal 3.12 (GHC 9.10)
   - clash-lib-hedgehog < 1.9 # needs to match clash-lib from Stackage
-  # 2026-01-23: dataframe >= 0.3.3.7 uses random-1.3, which breaks dependency coherence on 25.11, whose default version is random-1.2
-  # TODO: when (likely in 25.x) Stackage bumps random to 1.3, review
-  - dataframe == 0.3.3.6
   # 2025-12-26: Needs to match egison-pattern-src from Stackage LTS
   - egison-pattern-src-th-mode < 0.2.2
   - extensions == 0.1.0.2 # matches Cabal 3.12 (GHC 9.10)
+  # 2026-06-29: needs to match futhark-0.26.3
+  - futhark-manifest == 1.8.0.0
   # 2026-01-30: Needs to match hasql from Stackage LTS 24
   - hasql-notifications < 0.2.5.0
-  # 2026-02-04: as requested by ghcide >= 2.13
-  - hie-bios < 0.18.0
-  - hiedb < 0.8.0
+  # 2026-07-19: ghcide/haskell-debugger don't yet support hie-bios 0.20
+  - hie-bios < 0.20
   # 2025-09-13: hnix 0.17.0 doesn't support hnix-store-core >= 0.8
   # https://github.com/haskell-nix/hnix/pull/1112
+  # Note: When removing this, also remove hnix-store-core from maintainers/scripts/haskell/update-stackage.sh
   - hnix-store-core < 0.7
   - hnix-store-remote < 0.7
   # 2025-08-03: need to match stackage version of hosc
@@ -51,10 +50,6 @@ default-package-overrides:
   # liquidhaskell(-boot) support one GHC at a time, so we choose the one matching the current GHC (9.10)
   - liquidhaskell == 0.9.10.*
   - liquidhaskell-boot == 0.9.10.*
-  # 2025-03-07: HLS and many other pkgs don't support lsp >= 2.8 (yet)
-  - lsp < 2.8
-  - lsp-test < 0.18
-  - lsp-types < 2.4
   # Needs to match microlens == 0.4.* in Stackage LTS 24
   - microlens-pro < 0.2.0.4
   # 2026-04-06: 4.0.10 merely adjusts to dependencies that are incompatible with our LTS
@@ -64,6 +59,8 @@ default-package-overrides:
   - pandoc-crossref == 0.3.21
   # 2025-12-19: Needs to match Stackage version of rhine
   - rhine-bayes < 1.6
+  # 2026-06-24: compatibility with mighttpd2-4.0.9
+  - wai-app-file-cgi < 3.2
   # 2026-02-08: compatibility with crypton-x509* in Stackage LTS 24
   - x509-ocsp < 0.4.1.0
 # keep-sorted end
@@ -77,11 +74,11 @@ extra-packages:
   - Cabal == 3.14.*
   - Cabal == 3.16.*                     # version required for cabal-install and other packages
   - cabal-add == 0.1                    # 2025-09-09: Only needed for hls 2.11 can be removed once we are past it.
+  - Cabal-syntax == 3.6.*               # required for the GHC 9.0.2 package set
   - Cabal-syntax == 3.10.*
   - Cabal-syntax == 3.12.*
   - Cabal-syntax == 3.14.*
   - Cabal-syntax == 3.16.*              # version required for cabal-install and other packages
-  - crypton-x509-store < 1.6.12         # 2025-11-22: requires unix >= 2.8 which isn't available for GHC < 9.6
   - extensions == 0.1.0.1               # 2025-09-21: needed for Cabal 3.10 (fourmolo/ormolu with ghc 9.8)
   - fourmolu == 0.14.0.0                # 2023-11-13: for ghc-lib-parser 9.6 compat
   - fourmolu == 0.15.0.0                # 2025-09-21: for ghc-lib-parser 9.8 compat
@@ -89,7 +86,7 @@ extra-packages:
   - ghc-exactprint == 1.6.*             # 2023-03-30: needed for GHC == 9.4
   - ghc-exactprint == 1.7.*             # 2025-03-09: needed for GHC == 9.6
   - ghc-exactprint == 1.8.*             # 2024-05-20: needed for GHC == 9.8
-  - ghc-exactprint == 1.9.*             # 2024-08-27: needed for GHC == 9.10
+  - ghc-exactprint == 1.10.*            # 2024-08-27: needed for GHC == 9.10
   - ghc-exactprint == 1.12.*            # 2025-10-15: needed for GHC == 9.12
   - ghc-lib == 9.6.*                    # 2022-02-17: preserve for GHC 9.4
   - ghc-lib == 9.8.*                    # 2025-12-11: preserve for GHC 9.6, 9.8
@@ -100,7 +97,7 @@ extra-packages:
   - ghc-lib-parser-ex == 9.8.*         # 2024-12-26: preserve for GHC 9.6, 9.8
   - ghc-tags == 1.7.*                   # 2023-02-18: preserve for ghc-lib == 9.6.*
   - ghc-tags == 1.8.*                   # 2023-02-18: preserve for ghc-lib == 9.8.*
-  - ghc-typelits-natnormalise < 0.8     # 2025-09-15: Stackage is stuck at 0.7.10
+  - haddock-api == 2.27.*               # 2026-05-22: latest version compatible with GHC 9.4
   - happy == 1.20.*                     # for ghc-lib-parser == 9.6.*
   - hashable < 1.5                      # 2025-07-30: hashable >= 1.5 requires GHC >= 9.6
   - hasql < 1.7                         # 2025-01-19: Needed for building postgrest
@@ -112,21 +109,25 @@ extra-packages:
   - hlint == 3.6.*                      # 2025-04-14: needed for hls with ghc-lib-parser 9.6
   - hlint == 3.8.*                      # 2025-09-21: needed for hls with ghc-lib-parser 9.8
   - hpack == 0.39.1                     # 2026-03-15: to match upstream stack-3.9.3
+  - insert-ordered-containers < 0.3     # 2026-05-25: Needed for building postgrest
   - language-javascript == 0.7.0.0      # required by purescript
+  - lawful-conversions < 0.2            # 2026-05-25: Needed for building postgrest
   - network-run == 0.4.0                # 2024-10-20: for GHC 9.10/network == 3.1.*
   - ormolu == 0.7.2.0                   # 2023-11-13: for ghc-lib-parser 9.6 compat
   - ormolu == 0.7.4.0                   # 2023-09-21: for ghc-lib-parser 9.8 compat
   - path == 0.9.5                       # 2025-09-21: Pin for hls on ghc 9.4
   - postgresql-binary < 0.14            # 2025-01-19: Needed for building postgrest
   - shake-cabal < 0.2.2.3               # 2023-07-01: last version to support Cabal 3.6.*
-  - ShellCheck == 0.9.0                 # 2024-03-21: pinned by haskell-ci
+  - ShellCheck == 0.10.0                # 2026-05-30: pinned by haskell-ci
   - simple-get-opt < 0.5                # 2025-05-01: for crux-0.7.2
   - stylish-haskell == 0.14.5.0         # 2025-04-14: needed for hls with ghc-lib 9.6
   - stylish-haskell == 0.14.6.0         # 2025-09-21: needed for hls with ghc-lib 9.8
   - stylish-haskell == 0.15.0.1         # 2025-04-14: needed for hls with ghc-lib 9.10
+  - swagger2 < 2.9                      # 2026-05-25: Needed for building postgrest
   - tar == 0.6.3.0                      # 2025-08-17: last version to not require file-io and directory-ospath-streaming (for GHC < 9.6)
   - text-builder < 1                    # 2025-08-27: Needed for building postgrest
   - text-builder-dev < 0.4              # 2025-08-27: Needed for building postgrest
+  - validation == 1.1.5                 # 2026-06-10: Needed for building geojson 4.1
 # keep-sorted end
 
 # keep-sorted start skip_lines=1 case=no
@@ -141,11 +142,14 @@ package-maintainers:
     - basic-sop
     - commutative-semigroups
     - generics-sop
+    - ghcide
     - ghcjs-base
     - ghcjs-dom
     - ghcjs-dom-javascript
     - ghcjs-dom-jsaddle
     - haskell-debugger
+    - hie-bios
+    - hiedb
     - jsaddle
     - jsaddle-clib
     - jsaddle-dom
@@ -156,6 +160,9 @@ package-maintainers:
     - large-records
     - lens-sop
     - linux-namespaces
+    - lsp
+    - lsp-test
+    - lsp-types
     - monoidal-containers
     - proto-lens-arbitrary
     - proto3-suite
@@ -377,7 +384,6 @@ package-maintainers:
     - Agda
     - agda2hs
     - irc-client
-    - lambdabot
     - shake
   nomeata:
     - cabal-plan-bounds
@@ -656,7 +662,6 @@ package-maintainers:
     - finite-typelits
     - has-transformers
     - monad-bayes
-    - monad-schedule
     - pulse-simple
     - openapi3-code-generator
     - rhine

pkgs/development/haskell-modules/configuration-hackage2nix/transitive-broken.yaml

@@ -136,6 +136,8 @@ dont-distribute-packages:
  - ast-monad-json
  - astview
  - async-ajax
+ - atelier-db
+ - atelier-testing
  - aterm-utils
  - atlassian-connect-core
  - atmos-dimensional-tf
@@ -189,6 +191,13 @@ dont-distribute-packages:
  - babylon
  - backblaze-b2-hs
  - backdropper
+ - baikai
+ - baikai-agent
+ - baikai-claude
+ - baikai-effectful
+ - baikai-kit
+ - baikai-openai
+ - baikai-trace-otel
  - balkon
  - ballast
  - bamboo
@@ -213,6 +222,7 @@ dont-distribute-packages:
  - battleships
  - bayes-stack
  - bbi
+ - bcp47-orphans
  - bdcs
  - bdcs-api
  - beam-th
@@ -448,6 +458,9 @@ dont-distribute-packages:
  - claferIG
  - claferwiki
  - clash
+ - clash-protocols
+ - clash-protocols-base
+ - clash-vexriscv
  - classify-frog
  - classy-effects
  - classy-effects-th
@@ -592,6 +605,7 @@ dont-distribute-packages:
  - CPBrainfuck
  - cprng-aes
  - cprng-aes-effect
+ - cql
  - cql-io-tinylog
  - cqrs-example
  - cqrs-memory
@@ -639,6 +653,7 @@ dont-distribute-packages:
  - dahdit-network
  - dahdit-test
  - daino
+ - danecheck
  - Dangerous
  - dapi
  - darcs-benchmark
@@ -649,7 +664,6 @@ dont-distribute-packages:
  - darcswatch
  - darkplaces-demo
  - darkplaces-rcon-util
- - dash-haskell
  - data-basic
  - data-cycle
  - data-default-extra
@@ -664,6 +678,11 @@ dont-distribute-packages:
  - datadog-tracing
  - datafix
  - dataflow
+ - dataframe
+ - dataframe-huggingface
+ - dataframe-lazy
+ - dataframe-parquet
+ - dataframe-parquet-th
  - datasets
  - date-conversions
  - dbjava
@@ -689,6 +708,7 @@ dont-distribute-packages:
  - ddci-core
  - dde
  - debug
+ - decidable
  - decimal-arithmetic
  - dedukti
  - DeepArrow
@@ -729,6 +749,8 @@ dont-distribute-packages:
  - dhscanner-kbapi
  - dhscanner-kbgen
  - dia-functions
+ - diagnostician-html
+ - diagnostician-terminal
  - diagrams-html5
  - diagrams-reflex
  - diagrams-wx
@@ -762,6 +784,7 @@ dont-distribute-packages:
  - DMuCheck
  - DnaProteinAlignment
  - dnf-repo
+ - dnsbase
  - dobutokO-poetry
  - dobutokO-poetry-general
  - dobutokO-poetry-general-languages
@@ -821,10 +844,12 @@ dont-distribute-packages:
  - EditTimeReport
  - effect-monad
  - effective-aspects-mzv
+ - eigen-hhlo
  - ekg-carbon
  - elasticsearch-interchange
  - electrs-client
  - elerea-examples
+ - eliminators
  - elliptic-curve
  - elsa
  - ema-extra
@@ -853,6 +878,9 @@ dont-distribute-packages:
  - ersatz-viz
  - esotericbot
  - EsounD
+ - esqueleto
+ - esqueleto-compat
+ - esqueleto-postgis
  - esqueleto-streaming
  - estreps
  - Etage-Graph
@@ -880,6 +908,9 @@ dont-distribute-packages:
  - eventium-memory
  - eventium-postgresql
  - eventium-sqlite
+ - eventlog-live
+ - eventlog-live-influxdb
+ - eventlog-live-otelcol
  - EventSocket
  - eventsource-geteventstore-store
  - eventsource-store-specs
@@ -892,6 +923,11 @@ dont-distribute-packages:
  - every-bit-counts
  - exact-kantorovich
  - exference
+ - exinst-aeson
+ - exinst-base
+ - exinst-bytes
+ - exinst-cereal
+ - exinst-serialise
  - exist-instances
  - existential
  - expand
@@ -1052,6 +1088,7 @@ dont-distribute-packages:
  - functor
  - functor-combo
  - functor-monad
+ - functor-products
  - funflow
  - funflow-nix
  - funion
@@ -1265,7 +1302,6 @@ dont-distribute-packages:
  - hackage2twitter
  - hackmanager
  - haddock
- - haddocset
  - hadoop-tools
  - haggis
  - hails-bin
@@ -1279,6 +1315,7 @@ dont-distribute-packages:
  - halma-gui
  - halma-telegram-bot
  - hamusic
+ - hanalyze
  - hans-pcap
  - happlets-lib-gtk
  - HAppS-Data
@@ -1327,9 +1364,10 @@ dont-distribute-packages:
  - haskell-admin-health
  - haskell-admin-managed-functions
  - haskell-aliyun
+ - haskell-bee-redis
+ - haskell-bee-stm
  - haskell-bitmex-client
  - haskell-debugger
- - haskell-docs
  - haskell-eigen-util
  - haskell-ftp
  - haskell-lsp
@@ -1337,6 +1375,7 @@ dont-distribute-packages:
  - haskell-opentimestamps
  - haskell-opentimestamps-client
  - haskell-pdf-presenter
+ - haskell-pgmq
  - haskell-platform-test
  - haskell-reflect
  - haskell-src-exts-observe
@@ -1384,6 +1423,7 @@ dont-distribute-packages:
  - haskoin-crypto
  - haskoin-protocol
  - haskoin-script
+ - haskoin-wallet
  - haskoon
  - haskoon-httpspec
  - haskoon-salvia
@@ -1402,7 +1442,6 @@ dont-distribute-packages:
  - hasloGUI
  - hasql-postgres
  - hasql-postgres-options
- - hasql-postgresql-types
  - hasql-queue
  - hasql-streams-core
  - hasql-streams-example
@@ -1423,6 +1462,7 @@ dont-distribute-packages:
  - Hayoo
  - hback
  - hbayes
+ - hbayesian
  - hbb
  - hbf
  - hbro
@@ -1438,7 +1478,6 @@ dont-distribute-packages:
  - hdbi-tests
  - hdiff
  - hdirect
- - hdocs
  - hdph
  - heart-app
  - heatitup
@@ -1500,6 +1539,7 @@ dont-distribute-packages:
  - hgeometry-combinatorial
  - hgeometry-ipe
  - hgeometry-svg
+ - hgg-analyze-bridge
  - hgithub
  - hiccup
  - hie-core
@@ -1551,8 +1591,8 @@ dont-distribute-packages:
  - hmeap-utils
  - hmep
  - HMock
- - hMPC
  - hmt-diagrams
+ - hnix-store-db
  - HNM
  - hnormalise
  - hob
@@ -1657,6 +1697,7 @@ dont-distribute-packages:
  - hspec-pg-transact
  - hspec-setup
  - hspec-shouldbe
+ - hspec-webdriver
  - hspecVariant
  - hsprocess
  - hsql-mysql
@@ -1667,6 +1708,7 @@ dont-distribute-packages:
  - hsqml-demo-morris
  - hsqml-morris
  - hsreadability
+ - hsrs
  - hssourceinfo
  - hssqlppp-th
  - hstar
@@ -1690,6 +1732,7 @@ dont-distribute-packages:
  - http-response-decoder
  - http-tower-hs
  - http2-client-grpc
+ - http2-client-grpc-effectful
  - http2-grpc-proto-lens
  - http2-grpc-proto3-wire
  - http3
@@ -1748,6 +1791,7 @@ dont-distribute-packages:
  - hylotab
  - hyloutils
  - hyperbole
+ - hyperbole-oauth2
  - hyperpublic
  - ide-backend
  - ide-backend-server
@@ -1756,9 +1800,11 @@ dont-distribute-packages:
  - ideas-statistics
  - identicon-style-squares
  - idna
+ - idnaparse
  - iException
  - ige-mac-integration
  - igrf
+ - ihaskell-dataframe
  - ihaskell-inline-r
  - ihaskell-rlangqq
  - ihaskell-symtegration
@@ -1811,7 +1857,9 @@ dont-distribute-packages:
  - IORefCAS
  - ipatch
  - ipc
+ - ipedb
  - ipld-cid
+ - ipldm
  - ipprint
  - iptadmin
  - irc-fun-bot
@@ -1930,6 +1978,9 @@ dont-distribute-packages:
  - keid-geometry
  - keid-resource-gltf
  - keid-sound-openal
+ - keiro-core
+ - keiro-dsl
+ - keiro-migrations
  - kerry
  - kevin
  - key-vault
@@ -1942,6 +1993,13 @@ dont-distribute-packages:
  - KiCS-debugger
  - KiCS-prophecy
  - kif-parser
+ - kind-integer
+ - kind-rational
+ - kioku-cli
+ - kioku-core
+ - kioku-migrate
+ - kioku-migrations
+ - kiroku-store-migrations
  - kit
  - kmeans-par
  - kmeans-vector
@@ -2064,6 +2122,7 @@ dont-distribute-packages:
  - list-t-attoparsec
  - list-t-html-parser
  - list-tuple
+ - list-witnesses
  - listenbrainz-client
  - liszt
  - lit
@@ -2159,6 +2218,7 @@ dont-distribute-packages:
  - manifold-random
  - Map
  - marionetta
+ - marionette-effectful
  - markdown-pap
  - markdown2svg
  - markov-processes
@@ -2197,8 +2257,6 @@ dont-distribute-packages:
  - meta-par-accelerate
  - MetaObject
  - metaplug
- - metar
- - metar-http
  - Metrics
  - metro
  - metro-socket
@@ -2224,6 +2282,7 @@ dont-distribute-packages:
  - minirotate
  - mismi-kernel
  - mismi-s3-core
+ - miso-css
  - miss
  - miss-porcelain
  - missing-py2
@@ -2262,12 +2321,19 @@ dont-distribute-packages:
  - mongrel2-handler
  - monky
  - Monocle
+ - monoidmap
+ - monoidmap-aeson
+ - monoidmap-examples
+ - monoidmap-hashable
+ - monoidmap-internal
+ - monoidmap-quickcheck
  - monomer
  - monomer-flatpak-example
  - monomer-hagrid
  - monte-carlo
  - moo
  - moo-nad
+ - moonlight-delta
  - morley
  - morley-client
  - morley-prelude
@@ -2350,6 +2416,7 @@ dont-distribute-packages:
  - mysql-simple-typed
  - myTestlll
  - mywatch
+ - n-tuple
  - n2o-web
  - NaCl
  - nakadi-client
@@ -2417,6 +2484,7 @@ dont-distribute-packages:
  - nonlinear-optimization-ad
  - nonlinear-optimization-backprop
  - NoSlow
+ - nostr
  - not-gloss
  - not-gloss-examples
  - notmuch-web
@@ -2462,6 +2530,7 @@ dont-distribute-packages:
  - ogma-language-fret-cs
  - ogma-language-fret-reqs
  - ois-input-manager
+ - okf-cli
  - olwrapper
  - om-kubernetes
  - online-csv
@@ -2483,6 +2552,7 @@ dont-distribute-packages:
  - optimal-blocks
  - optimusprime
  - optparse-enum
+ - orbits
  - orchid
  - orchid-demo
  - order-maintenance
@@ -2561,11 +2631,16 @@ dont-distribute-packages:
  - persistent-hssqlppp
  - persistent-iproute
  - persistent-map
+ - persistent-pagination
+ - persistent-postgresql
  - persistent-protobuf
+ - persistent-sql-lifted
+ - persistent-typed-db
  - persona-idp
  - peyotls
  - peyotls-codec
  - pg-entity
+ - pg-migrate-test-support
  - pgmq-config
  - pgmq-effectful
  - pgmq-hasql
@@ -2621,6 +2696,10 @@ dont-distribute-packages:
  - plugins-auto
  - pms-application-service
  - pms-domain-service
+ - pms-infra-agent-process
+ - pms-infra-agent-serial
+ - pms-infra-agent-server
+ - pms-infra-agent-socket
  - pms-infra-cmdrun
  - pms-infra-filesystem
  - pms-infra-procspawn
@@ -2672,6 +2751,7 @@ dont-distribute-packages:
  - poseidon
  - poseidon-postgis
  - postgresql-common-persistent
+ - postgresql-migration-persistent
  - postgresql-pure
  - postgresql-simple-ltree
  - postgresql-simple-queue
@@ -2778,7 +2858,10 @@ dont-distribute-packages:
  - queuelike
  - quic-simple
  - quick-process
+ - quickcheck-groups
+ - quickcheck-monoid-subclasses
  - quickcheck-poly
+ - quickcheck-quid
  - quickcheck-regex
  - quickcheck-relaxng
  - quicktest
@@ -2883,6 +2966,8 @@ dont-distribute-packages:
  - reheat
  - rel8
  - relative-date
+ - relay-pagination-conformance
+ - relay-pagination-hasql
  - remote-json
  - remote-json-client
  - remote-json-server
@@ -3053,6 +3138,7 @@ dont-distribute-packages:
  - secret-sharing
  - secrm
  - sednaDBXML
+ - seihou-cli
  - seitz-symbol
  - SelectSequencesFromMSA
  - selenium-server
@@ -3133,6 +3219,17 @@ dont-distribute-packages:
  - shibuya-kafka-adapter
  - shibuya-metrics
  - shibuya-pgmq-adapter
+ - shikumi
+ - shikumi-cache
+ - shikumi-cache-postgres
+ - shikumi-cache-redis
+ - shikumi-compile
+ - shikumi-eval
+ - shikumi-okf
+ - shikumi-optimize
+ - shikumi-tools
+ - shikumi-trace
+ - shikumi-trace-otel
  - shine-varying
  - short-vec
  - short-vec-lens
@@ -3171,6 +3268,9 @@ dont-distribute-packages:
  - SimpleLog
  - SimpleServer
  - simseq
+ - singleton-nats
+ - singletons-base
+ - singletons-default
  - singletons-presburger
  - siphon
  - siren-json
@@ -3296,7 +3396,6 @@ dont-distribute-packages:
  - statistics-dirichlet
  - statsd-client
  - statsdi
- - steeloverseer
  - stern-brocot
  - STLinkUSB
  - stm-sbchan
@@ -3356,6 +3455,9 @@ dont-distribute-packages:
  - syb-with-class-instances-text
  - SybWidget
  - sydtest-amqp
+ - sydtest-mutation-plugin
+ - sydtest-sqitch-postgres
+ - sydtest-sqitch-postgres-persistent
  - sydtest-webdriver-screenshot
  - sydtest-webdriver-yesod
  - sylvia
@@ -3481,6 +3583,7 @@ dont-distribute-packages:
  - toxcore-c
  - toysolver
  - tpb
+ - tpdb
  - trace-embrace
  - tracing-control
  - trajectory
@@ -3545,6 +3648,7 @@ dont-distribute-packages:
  - type-sub-th
  - TypeClass
  - typed-encoding-encoding
+ - typed-fsm
  - typed-streams
  - typedflow
  - TypeIlluminator
@@ -3578,6 +3682,8 @@ dont-distribute-packages:
  - uniqueness-periods-vector-filters
  - uniqueness-periods-vector-general
  - uniqueness-periods-vector-properties
+ - units
+ - units-defs
  - unitym-servant
  - unitym-yesod
  - universal
@@ -3677,6 +3783,7 @@ dont-distribute-packages:
  - waldo
  - warp-grpc
  - warp-quic
+ - warp-s2n-tls
  - warped
  - warpZ-tls
  - WashNGo
@@ -3695,7 +3802,9 @@ dont-distribute-packages:
  - WebBits-multiplate
  - WebCont
  - webcrank-wai
+ - webdriver
  - webdriver-w3c
+ - webdriver-wrapper
  - webify
  - webserver
  - websnap

pkgs/development/haskell-modules/configuration-microhs.nix

@@ -38,6 +38,7 @@ self: super: {
   Cabal-syntax = doDistribute self.Cabal-syntax_3_16_1_0;
   containers = doDistribute self.containers_0_8;
   exceptions = doDistribute self.exceptions_0_10_12;
+  file-io = markBroken self.file-io_0_2_0;
   filepath = doDistribute self.filepath_1_5_5_0;
   ghc-bignum = null;
   ghc-boot = null;
@@ -49,12 +50,14 @@ self: super: {
   ghc-platform = null;
   ghc-prim = null;
   ghci = null;
-  haskeline = doDistribute self.haskeline_0_8_4_1;
+  haddock-api = markBroken self.haddock-api_2_29_1; # depends on ghc
+  haddock-library = markBroken self.haddock-library_1_11_0; # depends on ghc
+  haskeline = doDistribute self.haskeline_0_8_5_0;
   hpc = markBroken self.hpc_0_7_0_2;
   integer-gmp = markBroken self.integer-gmp_1_1;
   libiserv = null;
   mtl = doDistribute self.mtl_2_3_2;
-  os-string = doDistribute self.os-string_2_0_10;
+  os-string = doDistribute self.os-string_2_0_11;
   parsec = doDistribute self.parsec_3_1_18_0;
   pretty = markBroken self.pretty_1_1_3_6;
   rts = null;
@@ -63,10 +66,10 @@ self: super: {
   system-cxx-std-lib = null;
   template-haskell = null;
   terminfo = doDistribute self.terminfo_0_4_1_7;
-  time = doDistribute self.time_1_15;
+  time = doDistribute self.time_1_16_0_1;
   transformers = doDistribute self.transformers_0_6_3_0;
   unix = markBroken self.unix_2_8_8_0;
-  xhtml = markBroken self.xhtml_3000_4_0_0;
+  xhtml = markBroken self.xhtml_3000_4_1_0;
 
   # MicroHs replacements for widely used libraries
   array = self.array-mhs;

pkgs/development/haskell-modules/configuration-nix.nix

@@ -130,6 +130,10 @@ builtins.intersectAttrs super {
   # Tests access homeless-shelter.
   hie-bios = dontCheck super.hie-bios;
 
+  # The test suite depends on an impure cabal-install installation in
+  # $HOME, which we don't have in our build sandbox.
+  cabal-install-parsers = dontCheck super.cabal-install-parsers;
+
   ###########################################
   ### END HASKELL-LANGUAGE-SERVER SECTION ###
   ###########################################
@@ -780,9 +784,13 @@ builtins.intersectAttrs super {
   # Wants to check against a real DB, Needs freetds
   odbc = dontCheck (addExtraLibraries [ pkgs.freetds ] super.odbc);
 
-  # Tests attempt to use npm to install from the network into
-  # /homeless-shelter. Disabled.
-  purescript = dontCheck super.purescript;
+  purescript = lib.pipe super.purescript [
+    # Tests attempt to use npm to install from the network into
+    # /homeless-shelter. Disabled.
+    dontCheck
+    # Generate shell completions
+    (self.generateOptparseApplicativeCompletions [ "purs" ])
+  ];
 
   # Hardcoded include path
   poppler = overrideCabal (drv: {
@@ -1083,6 +1091,9 @@ builtins.intersectAttrs super {
   # Break dependency cycle between hedgehog, tasty-hedgehog and lifted-async
   lifted-async = dontCheck super.lifted-async;
 
+  # Break infinite recursion yesod-test → yesod-form → yesod-test
+  yesod-test = dontCheck super.yesod-test;
+
   # loc and loc-test depend on each other for testing. Break that infinite cycle:
   loc-test = super.loc-test.override { loc = dontCheck self.loc; };
 
@@ -1135,13 +1146,6 @@ builtins.intersectAttrs super {
     ];
   }) super.lsp-test;
 
-  lsp_2_8_0_0 = doDistribute (
-    super.lsp_2_8_0_0.override {
-      lsp-types = self.lsp-types_2_4_0_0;
-    }
-  );
-  lsp-types_2_4_0_0 = doDistribute super.lsp-types_2_4_0_0;
-
   # the test suite attempts to run the binaries built in this package
   # through $PATH but they aren't in $PATH
   dhall-lsp-server = dontCheck super.dhall-lsp-server;
@@ -1282,6 +1286,8 @@ builtins.intersectAttrs super {
           ln -sf git-annex git-remote-tor-annex
           PATH+=":$PWD"
 
+          checkFlagsArray+=("-J$NIX_BUILD_CORES")
+
           echo checkFlags: $checkFlags ''${checkFlagsArray:+"''${checkFlagsArray[@]}"}
 
           # Doesn't use Cabal's test mechanism
@@ -1667,6 +1673,15 @@ builtins.intersectAttrs super {
     (disableCabalFlag "icu")
   ];
 
+  # Tests spawn ghc with -fplugin and need this package's in-place package db.
+  # The trailing colon keeps GHC's default package db in the package path.
+  # https://hydra.nixos.org/build/329190094
+  ghc-typelits-natnormalise = overrideCabal (drv: {
+    preCheck = (drv.preCheck or "") + ''
+      export NIX_GHC_PACKAGE_PATH_FOR_TEST=$PWD/dist/package.conf.inplace/:$packageConfDir:
+    '';
+  }) super.ghc-typelits-natnormalise;
+
   # based on https://github.com/gibiansky/IHaskell/blob/aafeabef786154d81ab7d9d1882bbcd06fc8c6c4/release.nix
   ihaskell = overrideCabal (drv: {
     # ihaskell's cabal file forces building a shared executable, which we need
@@ -1847,9 +1862,11 @@ builtins.intersectAttrs super {
     enableSeparateBinOutput super.cachix
   );
 
-  hercules-ci-agent = super.hercules-ci-agent.override {
-    nix = self.hercules-ci-cnix-store.passthru.nixPackage;
-  };
+  hercules-ci-agent = self.generateOptparseApplicativeCompletions [ "hercules-ci-agent" ] (
+    super.hercules-ci-agent.override {
+      nix = self.hercules-ci-cnix-store.passthru.nixPackage;
+    }
+  );
   hercules-ci-cnix-expr = addTestToolDepend pkgs.git (
     super.hercules-ci-cnix-expr.override { nix = self.hercules-ci-cnix-store.passthru.nixPackage; }
   );
@@ -2358,6 +2375,31 @@ builtins.intersectAttrs super {
 
   # Workaround for flaky test: https://github.com/basvandijk/threads/issues/10
   threads = appendPatch ./patches/threads-flaky-test.patch super.threads;
+
+  idris = (self.generateOptparseApplicativeCompletions [ "idris" ]) super.idris;
+
+  # Generate cli completions for dhall.
+  dhall = self.generateOptparseApplicativeCompletions [ "dhall" ] super.dhall;
+  dhall-json = self.generateOptparseApplicativeCompletions [
+    "dhall-to-json"
+    "dhall-to-yaml"
+  ] super.dhall-json;
+  dhall-nix = self.generateOptparseApplicativeCompletions [ "dhall-to-nix" ] super.dhall-nix;
+  dhall-nixpkgs = self.generateOptparseApplicativeCompletions [
+    "dhall-to-nixpkgs"
+  ] super.dhall-nixpkgs;
+  dhall-yaml = self.generateOptparseApplicativeCompletions [
+    "dhall-to-yaml-ng"
+    "yaml-to-dhall"
+  ] super.dhall-yaml;
+
+  update-nix-fetchgit = self.generateOptparseApplicativeCompletions [
+    "update-nix-fetchgit"
+  ] super.update-nix-fetchgit;
+
+  hinit = self.generateOptparseApplicativeCompletions [ "hi" ] super.hinit;
+
+  hercules-ci-cli = self.generateOptparseApplicativeCompletions [ "hci" ] super.hercules-ci-cli;
 }
 
 // lib.optionalAttrs pkgs.config.allowAliases (

pkgs/development/haskell-modules/patches/darcs-cabal-3.14.patch

@@ -0,0 +1,85 @@
+diff -rN -u old-darcs.net/darcs.cabal new-darcs.net/darcs.cabal
+--- old-darcs.net/darcs.cabal	2025-09-13 02:45:32.790227974 +0200
++++ new-darcs.net/darcs.cabal	2025-09-13 02:45:32.791227985 +0200
+@@ -124,7 +124,7 @@
+ 
+ custom-setup
+     setup-depends: base      >= 4.10 && < 4.21,
+-                   Cabal     >= 2.4 && < 3.13,
++                   Cabal     >= 2.4 && < 3.15,
+                    process   >= 1.2.3.0 && < 1.7,
+                    filepath  >= 1.4.1 && < 1.5.0.0,
+                    directory >= 1.2.7 && < 1.4
+--- old-darcs.net/Setup.hs	2026-06-22 14:55:26.775706597 +0200
++++ new-darcs.net/Setup.hs	2026-06-22 14:56:31.996746207 +0200
+--- tmp2.hs	2026-06-22 14:55:26.775706597 +0200
++++ /home/lukas/tmp.hs	2026-06-22 15:25:23.957579360 +0200
+--- tmp2.hs	2026-06-22 14:55:26.775706597 +0200
++++ /home/lukas/tmp.hs	2026-06-22 15:28:17.448848236 +0200
+@@ -2,6 +2,7 @@
+ -- portions copyright (c) 2008 David Roundy
+ -- portions copyright (c) 2007-2009 Judah Jacobson
+ {-# OPTIONS_GHC -Wall #-}
++{-# LANGUAGE CPP #-}
+ import Distribution.Simple
+          ( defaultMainWithHooks, UserHooks(..), simpleUserHooks )
+ import Distribution.PackageDescription ( PackageDescription )
+@@ -25,8 +26,17 @@
+ import System.IO ( openFile, IOMode(..) )
+ import System.Process (callProcess, runProcess)
+ import Data.List( isInfixOf )
++#if MIN_VERSION_Cabal_syntax(3,14,0)
++import Distribution.Utils.Path ( (</>), interpretSymbolicPathCWD, makeRelativePathEx )
++#else
+ import System.FilePath ( (</>) )
+ 
++-- Shims so we can use the Cabal >= 3.14 API
++interpretSymbolicPathCWD, makeRelativePathEx :: FilePath -> FilePath
++interpretSymbolicPathCWD = id
++makeRelativePathEx = id
++#endif
++
+ import qualified Control.Exception as Exception
+ 
+ catchAny :: IO a -> (Exception.SomeException -> IO a) -> IO a
+@@ -73,22 +83,26 @@
+ 
+ buildManpage :: LocalBuildInfo -> IO ()
+ buildManpage lbi = do
+-  have_darcs_exe_dir <- doesDirectoryExist (buildDir lbi </> "darcs")
++  have_darcs_exe_dir <- doesDirectoryExist
++    $ interpretSymbolicPathCWD (buildDir lbi </> makeRelativePathEx "darcs")
+   when have_darcs_exe_dir $ do
+-    let darcs = buildDir lbi </> "darcs/darcs"
+-        manpage = buildDir lbi </> "darcs/darcs.1"
++    let darcs = interpretSymbolicPathCWD
++          $ buildDir lbi </> makeRelativePathEx "darcs/darcs"
++        manpage = interpretSymbolicPathCWD
++          $ buildDir lbi </> makeRelativePathEx "darcs/darcs.1"
+     manpageHandle <- openFile manpage WriteMode
+     void $ runProcess darcs ["help","manpage"]
+             Nothing Nothing Nothing (Just manpageHandle) Nothing
+ 
+ installManpage :: PackageDescription -> LocalBuildInfo -> Verbosity -> CopyDest -> IO ()
+ installManpage pkg lbi verbosity copy = do
+-  have_manpage <- doesFileExist (buildDir lbi </> "darcs" </> "darcs.1")
++  have_manpage <- doesFileExist
++    $ interpretSymbolicPathCWD (buildDir lbi </> makeRelativePathEx "darcs/darcs.1")
+   when have_manpage $
+     copyFiles
+       verbosity
+       (mandir (absoluteInstallDirs pkg lbi copy) </> "man1")
+-      [(buildDir lbi </> "darcs", "darcs.1")]
++      [(interpretSymbolicPathCWD (buildDir lbi </> makeRelativePathEx "darcs"), "darcs.1")]
+ 
+ -- ---------------------------------------------------------------------
+ -- version module
+@@ -124,7 +138,7 @@
+ 
+ generateVersionModule :: Verbosity -> LocalBuildInfo -> String -> String -> IO ()
+ generateVersionModule verbosity lbi version state = do
+-  let dir = autogenPackageModulesDir lbi
++  let dir = interpretSymbolicPathCWD (autogenPackageModulesDir lbi)
+   createDirectoryIfMissingVerbose verbosity True dir
+   ctx <- context verbosity
+   hash <- weakhash verbosity

pkgs/development/haskell-modules/patches/darcs-remove-fgl-dependency.patch

@@ -0,0 +1,13 @@
+Remove unused dependency.
+
+--- old/darcs.cabal	1970-01-01 01:00:01.000000000 +0100
++++ new/darcs.cabal	2026-08-13 14:15:19.498074382 +0200
+@@ -427,7 +427,7 @@
+                       mtl               >= 2.2.1 && < 2.4,
+                       transformers      >= 0.4.2.0 && < 0.7,
+                       parsec            >= 3.1.9 && < 3.2,
+-                      fgl               >= 5.5.2.3 && < 5.9,
++                      
+                       html              >= 1.0.1.2 && < 1.1,
+                       filepath          >= 1.4.1 && < 1.6,
+                       haskeline         >= 0.7.2 && < 0.9,

pkgs/development/haskell-modules/patches/darcs-stackage-nightly-2026-06-16.patch

@@ -0,0 +1,29 @@
+--- old-darcs.net/darcs.cabal	1970-01-01 01:00:01.000000000 +0100
++++ new-darcs.net/darcs.cabal	2026-06-22 16:10:41.137461887 +0200
+@@ -416,7 +416,7 @@
+       build-depends:  unix              >= 2.7.1.0 && < 2.9,
+                       directory         >= 1.2.7 && < 1.4
+ 
+-    build-depends:    base              >= 4.10 && < 4.21,
++    build-depends:    base              >= 4.10 && < 4.22,
+                       safe              >= 0.3.20 && < 0.4,
+                       stm               >= 2.1 && < 2.6,
+                       binary            >= 0.5 && < 0.11,
+@@ -436,7 +436,7 @@
+                       base16-bytestring >= 1.0 && < 1.1,
+                       utf8-string       >= 1 && < 1.1,
+                       vector            >= 0.11 && < 0.14,
+-                      tar               >= 0.5 && < 0.7,
++                      tar               >= 0.5 && < 0.8,
+                       data-ordlist      == 0.4.*
+ 
+     if impl(ghc < 8.10)
+@@ -462,7 +462,7 @@
+                       network           >= 2.6 && < 3.3,
+                       conduit           >= 1.3.0 && < 1.4,
+                       http-conduit      >= 2.3 && < 2.4,
+-                      http-types        >= 0.12.1 && < 0.12.5,
++                      http-types        >= 0.12.1 && < 0.13,
+                       exceptions        >= 0.6 && < 0.11,
+                       terminal-size     >= 0.3.4 && < 0.4
+ 

pkgs/development/haskell-modules/patches/darcs-tls-2.2.patch

@@ -0,0 +1,15 @@
+Based on https://hub.darcs.net/darcs/darcs-screened/patch/523d0a3a5480024ea35fd5d17b35a05e9d3334a0
+
+--- old/darcs.cabal	1970-01-01 01:00:01.000000000 +0100
++++ new/darcs.cabal	2026-08-13 14:18:55.376292224 +0200
+@@ -470,8 +470,8 @@
+       cpp-options:    -DHAVE_CRYPTON_CONNECTION
+       build-depends:  crypton-connection >= 0.4 && < 0.5,
+                       data-default      >= 0.7.1.3 && < 0.9,
+-                      http-client-tls   >= 0.3.5 && < 0.4,
+-                      tls               >= 2.0.6 && < 2.2
++                      http-client-tls   >= 0.3.5 && < 0.5,
++                      tls               >= 2.0.6 && < 2.5
+     else
+       -- cannot use crypton-connection >= 0.4, so
+       -- constraining indirect dependency to work around problems

pkgs/development/misc/haskell/hercules-ci-optparse-applicative.nix

@@ -15,8 +15,8 @@ mkDerivation {
   version = "0.19.0.0";
   src = fetchgit {
     url = "https://github.com/hercules-ci/optparse-applicative.git";
-    sha256 = "068rsq9j0afrywbcqf6vg4ivfxbb68ab7f0lvg1na81mfn7sfakk";
-    rev = "b55bb38a2aea0cf776aec707cdce7c7418146077";
+    sha256 = "sha256-tO0V+TKS+ng6OJ8BztKwmV0tV4TnUXOD01ocTyO0sq0=";
+    rev = "0.19.0.0-fork-1";
     fetchSubmodules = true;
   };
   libraryHaskellDepends = [

pkgs/top-level/all-packages.nix

@@ -3625,14 +3625,13 @@ with pkgs;
 
   haskellPackages = recurseIntoAttrs (
     # Prefer native-bignum to avoid linking issues with gmp;
-    # GHC 9.10 doesn't work too well with iserv-proxy.
     if stdenv.hostPlatform.isStatic then
       haskell.packages.native-bignum.ghc912
     # JS backend can't use gmp
     else if stdenv.hostPlatform.isGhcjs then
-      haskell.packages.native-bignum.ghc910
+      haskell.packages.native-bignum.ghc912
     else
-      haskell.packages.ghc910
+      haskell.packages.ghc912
   );
 
   # haskellPackages.ghc is build->host (it exposes the compiler used to build the
@@ -3646,14 +3645,13 @@ with pkgs;
   ghc =
     targetPackages.haskellPackages.ghc or (
       # Prefer native-bignum to avoid linking issues with gmp;
-      # GHC 9.10 doesn't work too well with iserv-proxy.
       if stdenv.hostPlatform.isStatic then
         haskell.compiler.native-bignum.ghc912
       # JS backend can't use GMP
       else if stdenv.targetPlatform.isGhcjs then
-        haskell.compiler.native-bignum.ghc910
+        haskell.compiler.native-bignum.ghc912
       else
-        haskell.compiler.ghc910
+        haskell.compiler.ghc912
     );
 
   # TODO(@NixOS/haskell): deprecate this alias?

pkgs/top-level/haskell-packages.nix

@@ -66,7 +66,7 @@ let
     ghc96 = sets.ghc967;
     ghc98 = sets.ghc984;
     ghc910 = sets.ghc9103;
-    ghc912 = sets.ghc9123;
+    ghc912 = sets.ghc9125;
     ghc914 = sets.ghc9141;
 
     microhs_0_15 = sets.microhs_0_15_4_0;
@@ -177,6 +177,14 @@ in
         inherit (buildPackages.darwin) xattr autoSignDarwinBinariesHook;
         inherit buildTargetLlvmPackages llvmPackages;
       };
+      ghc9125 = callPackage ../development/compilers/ghc/9.12.5.nix {
+        bootPkgs =
+          # No suitable bindist packaged yet
+          bb.packages.ghc9103;
+        inherit (buildPackages.python3Packages) sphinx;
+        inherit (buildPackages.darwin) xattr autoSignDarwinBinariesHook;
+        inherit buildTargetLlvmPackages llvmPackages;
+      };
       ghc9141 = callPackage ../development/compilers/ghc/9.14.1.nix {
         bootPkgs =
           # No suitable bindist packaged yet
@@ -185,6 +193,14 @@ in
         inherit (buildPackages.darwin) xattr autoSignDarwinBinariesHook;
         inherit buildTargetLlvmPackages llvmPackages;
       };
+      ghc9142 = callPackage ../development/compilers/ghc/9.14.2.nix {
+        bootPkgs =
+          # No suitable bindist packaged yet
+          bb.packages.ghc9103;
+        inherit (buildPackages.python3Packages) sphinx;
+        inherit (buildPackages.darwin) xattr autoSignDarwinBinariesHook;
+        inherit buildTargetLlvmPackages llvmPackages;
+      };
       ghcHEAD = callPackage ../development/compilers/ghc/head.nix {
         bootPkgs =
           # No suitable bindist packaged yet
@@ -284,11 +300,21 @@ in
         ghc = bh.compiler.ghc9124;
         compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-9.12.x.nix { };
       };
+      ghc9125 = callPackage ../development/haskell-modules {
+        buildHaskellPackages = bh.packages.ghc9125;
+        ghc = bh.compiler.ghc9125;
+        compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-9.12.x.nix { };
+      };
       ghc9141 = callPackage ../development/haskell-modules {
         buildHaskellPackages = bh.packages.ghc9141;
         ghc = bh.compiler.ghc9141;
         compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-9.14.x.nix { };
       };
+      ghc9142 = callPackage ../development/haskell-modules {
+        buildHaskellPackages = bh.packages.ghc9142;
+        ghc = bh.compiler.ghc9142;
+        compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-9.14.x.nix { };
+      };
       ghcHEAD = callPackage ../development/haskell-modules {
         buildHaskellPackages = bh.packages.ghcHEAD;
         ghc = bh.compiler.ghcHEAD;

pkgs/top-level/release-haskell.nix

@@ -47,7 +47,9 @@ let
     ghc967
     ghc984
     ghc9103
-    ghc9123
+    ghc9125
+    ghc9141
+    ghc9142
   ];
 
   # packagePlatforms applied to `haskell.packages.*`
@@ -505,22 +507,48 @@ let
         compilerNames.ghc948
       ] released;
       Cabal_3_10_3_0 = lib.subtractLists [
-        # time < 1.13 conflicts with time == 1.14.*
-        compilerNames.ghc9123
+        # time < 1.13 conflicts with time == 1.14.* || == 1.15.*
+        compilerNames.ghc9125
+        compilerNames.ghc9141
+        compilerNames.ghc9142
+      ] released;
+      Cabal_3_12_1_0 = lib.subtractLists [
+        # time < 1.15 conflicts with time == 1.15.*
+        compilerNames.ghc9141
+        compilerNames.ghc9142
+      ] released;
+      Cabal_3_14_2_0 = lib.subtractLists [
+        # time < 1.15 conflicts with time == 1.15.*
+        compilerNames.ghc9141
+        compilerNames.ghc9142
       ] released;
-      Cabal_3_12_1_0 = released;
-      Cabal_3_14_2_0 = released;
       Cabal_3_16_1_0 = released;
       cabal2nix = released;
       cabal2nix-unstable = released;
       funcmp = released;
+      # haddock-{api,library} are core packages as of GHC >= 9.12
+      haddock-api = [
+        compilerNames.ghc94
+        compilerNames.ghc96
+        # No version compatible with 9.8 nor 9.10 released to Hackage
+      ];
+      haddock-library = [
+        compilerNames.ghc94
+        compilerNames.ghc96
+        compilerNames.ghc98
+        compilerNames.ghc910
+      ];
       haskell-debugger = [
         compilerNames.ghc9141
+        compilerNames.ghc9142
       ];
       haskell-language-server = released;
       hoogle = released;
       hlint = lib.subtractLists [
-        compilerNames.ghc9123
+        # https://github.com/ndmitchell/hlint/issues/1672
+        # https://github.com/ndmitchell/hlint/pull/1673
+        compilerNames.ghc9141
+        compilerNames.ghc9142
       ] released;
       hpack = released;
       hsdns = released;
@@ -529,28 +557,28 @@ let
       language-nix = released;
       nix-paths = released;
       titlecase = released;
+      ghc-exactprint = released;
       ghc-lib = released;
       ghc-lib-parser = released;
       ghc-lib-parser-ex = released;
-      ghc-source-gen = lib.subtractLists [
-        compilerNames.ghc9123
-      ] released;
+      ghc-source-gen = released;
       ghc-tags = lib.subtractLists [
-        compilerNames.ghc9123
+        # https://github.com/arybczak/ghc-tags/pull/31
+        compilerNames.ghc9141
+        compilerNames.ghc9142
       ] released;
       hashable = released;
       primitive = released;
       scrod = [
         compilerNames.ghc9141
+        compilerNames.ghc9142
       ];
       semaphore-compat = [
         # Compiler < 9.8 don't have the semaphore-compat core package, but
         # requires unix >= 2.8.1.0 which implies GHC >= 9.6 for us.
         compilerNames.ghc967
       ];
-      weeder = lib.subtractLists [
-        compilerNames.ghc9123
-      ] released;
+      weeder = released;
 
       # MicroHs core packages
       ghc-compat = [