diff --git a/.github/workflows/haskell-ci-xenial.yaml b/.github/workflows/haskell-ci-xenial.yaml
deleted file mode 100644
index 66fc2ecf..00000000
--- a/.github/workflows/haskell-ci-xenial.yaml
+++ /dev/null
@@ -1,162 +0,0 @@
-# This is haskell-ci script on xenial using one GHC
-# This way we test a bit older environment
-#
-name: Haskell-CI Xenial
-on:
-  - push
-  - pull_request
-jobs:
-  linux:
-    name: Haskell-CI - Xenial - ${{ matrix.compiler }}
-    runs-on: ubuntu-20.04
-    container:
-      image: buildpack-deps:xenial
-    continue-on-error: ${{ matrix.allow-failure }}
-    strategy:
-      matrix:
-        include:
-          - compiler: ghc-8.2.2
-            compilerKind: ghc
-            compilerVersion: 8.2.2
-            setup-method: ghcup
-            allow-failure: false
-      fail-fast: false
-    steps:
-      - name: apt
-        run: |
-          apt-get update
-          apt-get install -y --no-install-recommends gnupg ca-certificates dirmngr curl git software-properties-common libtinfo5 libnuma-dev
-          mkdir -p "$HOME/.ghcup/bin"
-          curl -sL https://downloads.haskell.org/ghcup/0.1.19.4/x86_64-linux-ghcup-0.1.19.4 > "$HOME/.ghcup/bin/ghcup"
-          chmod a+x "$HOME/.ghcup/bin/ghcup"
-          "$HOME/.ghcup/bin/ghcup" install ghc "$HCVER"
-          "$HOME/.ghcup/bin/ghcup" install cabal 3.10.1.0
-        env:
-          HCKIND: ${{ matrix.compilerKind }}
-          HCNAME: ${{ matrix.compiler }}
-          HCVER: ${{ matrix.compilerVersion }}
-      - name: Set PATH and environment variables
-        run: |
-          echo "$HOME/.cabal/bin" >> $GITHUB_PATH
-          echo "LANG=C.UTF-8" >> "$GITHUB_ENV"
-          echo "CABAL_DIR=$HOME/.cabal" >> "$GITHUB_ENV"
-          echo "CABAL_CONFIG=$HOME/.cabal/config" >> "$GITHUB_ENV"
-          HCDIR=/opt/$HCKIND/$HCVER
-          HC=$HOME/.ghcup/bin/$HCKIND-$HCVER
-          echo "HC=$HC" >> "$GITHUB_ENV"
-          echo "HCPKG=$HOME/.ghcup/bin/$HCKIND-pkg-$HCVER" >> "$GITHUB_ENV"
-          echo "CABAL=$HOME/.ghcup/bin/cabal-3.10.1.0 -vnormal+nowrap" >> "$GITHUB_ENV"
-          HCNUMVER=$(${HC} --numeric-version|perl -ne '/^(\d+)\.(\d+)\.(\d+)(\.(\d+))?$/; print(10000 * $1 + 100 * $2 + ($3 == 0 ? $5 != 1 : $3))')
-          echo "HCNUMVER=$HCNUMVER" >> "$GITHUB_ENV"
-          echo "ARG_TESTS=--enable-tests" >> "$GITHUB_ENV"
-          echo "ARG_BENCH=--enable-benchmarks" >> "$GITHUB_ENV"
-          echo "HEADHACKAGE=false" >> "$GITHUB_ENV"
-          echo "ARG_COMPILER=--$HCKIND --with-compiler=$HC" >> "$GITHUB_ENV"
-          echo "GHCJSARITH=0" >> "$GITHUB_ENV"
-        env:
-          HCKIND: ${{ matrix.compilerKind }}
-          HCNAME: ${{ matrix.compiler }}
-          HCVER: ${{ matrix.compilerVersion }}
-      - name: env
-        run: |
-          env
-      - name: write cabal config
-        run: |
-          mkdir -p $CABAL_DIR
-          cat >> $CABAL_CONFIG <<EOF
-          remote-build-reporting: anonymous
-          write-ghc-environment-files: never
-          remote-repo-cache: $CABAL_DIR/packages
-          logs-dir:          $CABAL_DIR/logs
-          world-file:        $CABAL_DIR/world
-          extra-prog-path:   $CABAL_DIR/bin
-          symlink-bindir:    $CABAL_DIR/bin
-          installdir:        $CABAL_DIR/bin
-          build-summary:     $CABAL_DIR/logs/build.log
-          store-dir:         $CABAL_DIR/store
-          install-dirs user
-            prefix: $CABAL_DIR
-          repository hackage.haskell.org
-            url: http://hackage.haskell.org/
-          EOF
-          cat $CABAL_CONFIG
-      - name: versions
-        run: |
-          $HC --version || true
-          $HC --print-project-git-commit-id || true
-          $CABAL --version || true
-      - name: update cabal index
-        run: |
-          $CABAL v2-update -v
-      - name: install cabal-plan
-        run: |
-          mkdir -p $HOME/.cabal/bin
-          curl -sL https://github.com/haskell-hvr/cabal-plan/releases/download/v0.6.2.0/cabal-plan-0.6.2.0-x86_64-linux.xz > cabal-plan.xz
-          echo 'de73600b1836d3f55e32d80385acc055fd97f60eaa0ab68a755302685f5d81bc  cabal-plan.xz' | sha256sum -c -
-          xz -d < cabal-plan.xz > $HOME/.cabal/bin/cabal-plan
-          rm -f cabal-plan.xz
-          chmod a+x $HOME/.cabal/bin/cabal-plan
-          cabal-plan --version
-      - name: checkout
-        uses: actions/checkout@v3
-        with:
-          path: source
-      - name: initial cabal.project for sdist
-        run: |
-          touch cabal.project
-          echo "packages: $GITHUB_WORKSPACE/source/." >> cabal.project
-          cat cabal.project
-      - name: sdist
-        run: |
-          mkdir -p sdist
-          $CABAL sdist all --output-dir $GITHUB_WORKSPACE/sdist
-      - name: unpack
-        run: |
-          mkdir -p unpacked
-          find sdist -maxdepth 1 -type f -name '*.tar.gz' -exec tar -C $GITHUB_WORKSPACE/unpacked -xzvf {} \;
-      - name: generate cabal.project
-        run: |
-          PKGDIR_text="$(find "$GITHUB_WORKSPACE/unpacked" -maxdepth 1 -type d -regex '.*/text-[0-9.]*')"
-          echo "PKGDIR_text=${PKGDIR_text}" >> "$GITHUB_ENV"
-          rm -f cabal.project cabal.project.local
-          touch cabal.project
-          touch cabal.project.local
-          echo "packages: ${PKGDIR_text}" >> cabal.project
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "package text" >> cabal.project ; fi
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "    ghc-options: -Werror=missing-methods" >> cabal.project ; fi
-          cat >> cabal.project <<EOF
-          EOF
-          $HCPKG list --simple-output --names-only | perl -ne 'for (split /\s+/) { print "constraints: $_ installed\n" unless /^(text)$/; }' >> cabal.project.local
-          cat cabal.project
-          cat cabal.project.local
-      - name: dump install plan
-        run: |
-          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dry-run all
-          cabal-plan
-      - name: cache
-        uses: actions/cache@v3
-        with:
-          key: ${{ runner.os }}-${{ matrix.compiler }}-${{ github.sha }}
-          path: ~/.cabal/store
-          restore-keys: ${{ runner.os }}-${{ matrix.compiler }}-
-      - name: install dependencies
-        run: |
-          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --dependencies-only -j2 all
-          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dependencies-only -j2 all
-      - name: build w/o tests
-        run: |
-          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks all
-      - name: build
-        run: |
-          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --write-ghc-environment-files=always
-      - name: tests
-        run: |
-          $CABAL v2-test $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --test-show-details=direct
-      - name: cabal check
-        run: |
-          cd ${PKGDIR_text} || false
-          ${CABAL} -vnormal check
-      - name: unconstrained build
-        run: |
-          rm -f cabal.project.local
-          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks all