Add GHCs 9.14.1 and 9.12.3 and Cabal 3.16.1.0

README.md

@@ -74,7 +74,9 @@ E.g., `8.10` will be resolved to `8.10.7`, and so will `8`.
 
 - `latest-nightly` (requires the resp. `ghcup-release-channel`, e.g. `https://ghc.gitlab.haskell.org/ghcup-metadata/ghcup-nightlies-0.0.7.yaml`)
 - `latest` (default)
-- `9.12.2` `9.12`
+- `9.14.1` `9.14`
+- `9.12.3` `9.12`
+- `9.12.2`
 - `9.12.1`
 - `9.10.3` `9.10`
 - `9.10.2`
@@ -136,7 +138,8 @@ Suggestion: Try to support at least the three latest major versions of GHC.
 
 - `head` (the [cabal-head](https://github.com/haskell/cabal/releases/tag/cabal-head) release of the most recent build of the `master` branch)
 - `latest` (default, recommended)
-- `3.16.0.0` `3.16`
+- `3.16.1.0` `3.16`
+- `3.16.0.0`
 - `3.14.2.0` `3.14`
 - `3.14.1.1`
 - `3.14.1.0`

src/installer.ts

@@ -354,13 +354,13 @@ async function ghcupBin(os: OS, arch: Arch): Promise<string> {
 }
 
 export async function addGhcupReleaseChannel(
-  channel: URL,
+  channel: string,
   os: OS,
   arch: Arch
 ): Promise<void> {
   core.info(`Adding ghcup release channel: ${channel}`);
   const bin = await ghcupBin(os, arch);
-  await exec(bin, ['config', 'add-release-channel', channel.toString()]);
+  await exec(bin, ['config', 'add-release-channel', channel]);
 }
 
 async function ghcup(

src/setup-haskell.ts

@@ -40,9 +40,14 @@ export default async function run(
     core.debug(`run: os     = ${JSON.stringify(os)}`);
     core.debug(`run: opts   = ${JSON.stringify(opts)}`);
 
+    // Andreas Abel, 2026-01-01, https://github.com/haskell-actions/setup/issues/78
+    // Add ghcup vanilla and prereleases channels by default.
+    addGhcupReleaseChannel('vanilla', os, arch);
+    addGhcupReleaseChannel('prereleases', os, arch);
+
     if (opts.ghcup.releaseChannel) {
       await core.group(`Preparing ghcup environment`, async () =>
-        addGhcupReleaseChannel(opts.ghcup.releaseChannel!, os, arch)
+        addGhcupReleaseChannel(opts.ghcup.releaseChannel!.toString(), os, arch)
       );
     }
 

src/versions.json

@@ -1,5 +1,7 @@
 {
   "ghc": [
+    "9.14.1",
+    "9.12.3",
     "9.12.2",
     "9.12.1",
     "9.10.3",
@@ -58,6 +60,7 @@
     "7.10.3"
   ],
   "cabal": [
+    "3.16.1.0",
     "3.16.0.0",
     "3.14.2.0",
     "3.14.1.1",