Drop GHC < 7.10 from tested-with and Haskell CI

Author: andreasabel

.github/workflows/haskell-ci.yml

@@ -27,7 +27,7 @@ jobs:
     timeout-minutes:
       60
     container:
-      image: buildpack-deps:bionic
+      image: buildpack-deps:focal
     continue-on-error: ${{ matrix.allow-failure }}
     strategy:
       matrix:
@@ -87,21 +87,6 @@ jobs:
             compilerVersion: 7.10.3
             setup-method: hvr-ppa
             allow-failure: false
-          - compiler: ghc-7.8.4
-            compilerKind: ghc
-            compilerVersion: 7.8.4
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.6.3
-            compilerKind: ghc
-            compilerVersion: 7.6.3
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.4.2
-            compilerKind: ghc
-            compilerVersion: 7.4.2
-            setup-method: hvr-ppa
-            allow-failure: false
       fail-fast: false
     steps:
       - name: apt
@@ -220,7 +205,7 @@ jobs:
           chmod a+x $HOME/.cabal/bin/cabal-plan
           cabal-plan --version
       - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: source
       - name: initial cabal.project for sdist

cabal.haskell-ci

@@ -1,9 +1,5 @@
 branches: master
 
-distribution: bionic
--- Switching to focal (20.04) and higher would require dropping GHC < 7.10
--- enabled: ghc >= 7.10
-
 ghc-head: True
 
 -- Andreas, 2023-07-01: We use some haddock features that are new in 8.6.

example-client/example-client.cabal

@@ -23,9 +23,6 @@ tested-with:
   GHC == 8.2.2
   GHC == 8.0.2
   GHC == 7.10.3
-  GHC == 7.8.4
-  GHC == 7.6.3
-  GHC == 7.4.2
 
 flag use-network-uri
   description: Are we using network-uri?

hackage-repo-tool/hackage-repo-tool.cabal

@@ -35,9 +35,6 @@ tested-with:
   GHC == 8.2.2
   GHC == 8.0.2
   GHC == 7.10.3
-  GHC == 7.8.4
-  GHC == 7.6.3
-  GHC == 7.4.2
 
 extra-source-files:
   ChangeLog.md README.md

hackage-root-tool/hackage-root-tool.cabal

@@ -27,9 +27,6 @@ tested-with:
   GHC == 8.2.2
   GHC == 8.0.2
   GHC == 7.10.3
-  GHC == 7.8.4
-  GHC == 7.6.3
-  GHC == 7.4.2
 
 extra-source-files:
   ChangeLog.md

hackage-security-HTTP/hackage-security-HTTP.cabal

@@ -29,9 +29,6 @@ tested-with:
   GHC == 8.2.2
   GHC == 8.0.2
   GHC == 7.10.3
-  GHC == 7.8.4
-  GHC == 7.6.3
-  GHC == 7.4.2
 
 extra-source-files:
   ChangeLog.md

hackage-security-curl/hackage-security-curl.cabal

@@ -27,9 +27,6 @@ tested-with:
   GHC == 8.2.2
   GHC == 8.0.2
   GHC == 7.10.3
-  GHC == 7.8.4
-  GHC == 7.6.3
-  GHC == 7.4.2
 
 flag use-network-uri
   description: Are we using network-uri?

hackage-security-http-client/hackage-security-http-client.cabal

@@ -26,9 +26,6 @@ tested-with:
   GHC == 8.2.2
   GHC == 8.0.2
   GHC == 7.10.3
-  GHC == 7.8.4
-  GHC == 7.6.3
-  GHC == 7.4.2
 
 flag use-network-uri
   description: Are we using network-uri?

hackage-security/hackage-security.cabal

@@ -43,9 +43,6 @@ tested-with:
   GHC == 8.2.2
   GHC == 8.0.2
   GHC == 7.10.3
-  GHC == 7.8.4
-  GHC == 7.6.3
-  GHC == 7.4.2
 
 extra-source-files:
   ChangeLog.md