Merge branch 'master' into lpgf

.github/workflows/build-all-versions.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        cabal: ["3.2"]
+        cabal: ["latest"]
         ghc:
           - "8.6.5"
           - "8.8.3"
@@ -33,7 +33,7 @@ jobs:
     - uses: actions/checkout@v2
       if: github.event.action == 'opened' || github.event.action == 'synchronize' || github.event.ref == 'refs/heads/master'
 
-    - uses: actions/setup-haskell@v1.1.4
+    - uses: haskell/actions/setup@v1
       id: setup-haskell-cabal
       name: Setup Haskell
       with:
@@ -65,7 +65,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        stack: ["2.3.3"]
+        stack: ["latest"]
         ghc: ["7.10.3","8.0.2", "8.2.2", "8.4.4", "8.6.5", "8.8.4"]
         # ghc: ["8.8.3"]
 
@@ -73,11 +73,12 @@ jobs:
     - uses: actions/checkout@v2
       if: github.event.action == 'opened' || github.event.action == 'synchronize' || github.event.ref == 'refs/heads/master'
 
-    - uses: actions/setup-haskell@v1.1.4
+    - uses: haskell/actions/setup@v1
       name: Setup Haskell Stack
       with:
-        # ghc-version: ${{ matrix.ghc }}
-        stack-version: ${{ matrix.stack }}
+        ghc-version: ${{ matrix.ghc }}
+        stack-version: 'latest'
+        enable-stack: true
 
     - uses: actions/cache@v1
       name: Cache ~/.stack