Lock file maintenance

devShells/default.nix

@@ -57,13 +57,9 @@ in
       pkgs.gcc
       pkgs.gnumake
     ];
-    emacs-lisp = extendDevShell nix [
-      ## TODO: This works on aarch64-darwin in unstable and master, but not
-      ##       25.05. I haven’t needed it, so it’s easier to disable until 25.11
-      ##       than to work around.
-      # pkgs.cask
-      pkgs.emacs
-      pkgs.emacsPackages.eldev
+    dhall = extendDevShell nix [
+      pkgs.dhall
+      pkgs.dhall-docs
     ];
     haskell = extendDevShell nix ([
         pkgs.cabal-install
@@ -88,24 +84,29 @@ in
         ++ [
           pkgs.cargo
           pkgs.cargo-fuzz
-          pkgs.cargo-semver-checks
+          (pkgs.cargo-semver-checks.overrideAttrs (old: {
+            ## NB: Checks fail on aarch64 systems with Nixpkgs 25.11.
+            doCheck = !pkgs.stdenv.isAarch64;
+          }))
           pkgs.rust-analyzer
           pkgs.rustPackages.clippy
           pkgs.rustc
           pkgs.rustfmt
           (pkgs.rustup.overrideAttrs (old: {
-            ## NB: Fails on i686-linux with Nixpkgs 24.11.
-            doCheck = pkgs.system != "i686-linux";
+            ## NB: Checks fail on aarch64-darwin with Nixpkgs 25.11.
+            doCheck = pkgs.system != "aarch64-darwin";
           }))
         ]);
   }
   // (
     if pkgs.system != sys.i686-linux
     then {
-      ## `cborg-0.2.9.0` fails to build on i686-linux
-      dhall = extendDevShell nix [
-        pkgs.dhall
-        pkgs.dhall-docs
+      ## guile is broken on i686-linux in Nixpkgs 25.11
+      emacs-lisp = extendDevShell nix [
+        ## TODO: Doesn’t build on Nixpkgs 25.11
+        # pkgs.cask
+        pkgs.emacs
+        pkgs.emacsPackages.eldev
       ];
       ## `openjdk-19.0.2+7` isn’t supported on i686-linux
       scala = extendDevShell nix [pkgs.sbt];

templates/haskell/.config/flake/outputs.nix

@@ -96,7 +96,7 @@ in
         "ghc" + nixpkgs.lib.replaceStrings ["."] [""] version;
 
       ## TODO: Extract this automatically from `pkgs.haskellPackages`.
-      defaultGhcVersion = "9.8.4";
+      defaultGhcVersion = "9.10.3";
 
       ## Test the oldest revision possible for each minor release. If it’s not
       ## available in nixpkgs, test the oldest available, then try an older
@@ -105,14 +105,11 @@ in
       ## maps to in the nixpkgs we depend on.
       testedGhcVersions = system: [
         self.lib.defaultGhcVersion
-        "8.10.7"
-        "9.0.2"
-        "9.2.8"
-        "9.4.7"
-        "9.6.3"
-        "9.8.1"
-        "9.10.1"
-        "9.12.1"
+        "9.4.8"
+        "9.6.7"
+        "9.8.4"
+        "9.10.2"
+        "9.12.2"
         # "ghcHEAD" # doctest doesn’t work on current HEAD
       ];
 
@@ -138,16 +135,7 @@ in
 
       ## However, provide packages in the default overlay for _every_
       ## supported version.
-      supportedGhcVersions = system:
-        self.lib.testedGhcVersions system
-        ++ [
-          "9.4.8"
-          "9.6.4"
-          "9.6.5"
-          "9.8.2"
-          "9.10.2"
-          "9.12.2"
-        ];
+      supportedGhcVersions = self.lib.testedGhcVersions;
     };
   }
   // flake-utils.lib.eachSystem supportedSystems

templates/haskell/core/{{project.name}}.cabal

@@ -29,14 +29,14 @@ tested-with:
     8.4.1,
     8.6.1,
     8.8.1,
-    8.10.1, 8.10.7,
-    9.0.1, 9.0.2,
-    9.2.1, 9.2.8,
-    9.4.1, 9.4.7,
-    9.6.1, 9.6.3,
+    8.10.1,
+    9.0.1,
+    9.2.1,
+    9.4.1, 9.4.8,
+    9.6.1, 9.6.7,
     9.8.1, 9.8.4,
-    9.10.1,
-    9.12.1
+    9.10.1, 9.10.2, 9.10.3,
+    9.12.1, 9.12.2
   }
 
 homepage: https://github.com/{{project.repo}}#readme