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Try adding downgrade CI #1168

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Try adding downgrade CI
Technici4n Oct 10, 2025
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Technici4n Oct 13, 2025
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20 changes: 13 additions & 7 deletions .github/workflows/ci.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -22,12 +22,13 @@ jobs:
steps:
- run: |
cat > matrix.yaml <<- EOM
- {mode: stable, arch: x64, os: ubuntu-latest, payload: minimal }
- {mode: stable, arch: x64, os: ubuntu-latest, payload: nominimal-noslow }
- {mode: stable, arch: x64, os: ubuntu-latest, payload: example }
- {mode: stable, arch: aarch64, os: macOS-latest, payload: minimal }
- {mode: stable, arch: x64, os: ubuntu-latest, payload: noslow-mpi }
- {mode: latest, arch: x64, os: ubuntu-latest, payload: minimal }
- {mode: stable, arch: x64, os: ubuntu-latest, payload: minimal }
- {mode: downgrade, arch: x64, os: ubuntu-latest, payload: minimal }
- {mode: stable, arch: x64, os: ubuntu-latest, payload: nominimal-noslow }
- {mode: stable, arch: x64, os: ubuntu-latest, payload: example }
- {mode: stable, arch: aarch64, os: macOS-latest, payload: minimal }
- {mode: stable, arch: x64, os: ubuntu-latest, payload: noslow-mpi }
- {mode: latest, arch: x64, os: ubuntu-latest, payload: minimal }
EOM
# Windows tests are disabled for PR builds
- if: ${{ github.event_name != 'pull_request' }}
Expand Down Expand Up @@ -61,14 +62,19 @@ jobs:
with:
version: '1.10'
arch: ${{ matrix.arch }}
if: ${{ matrix.mode == 'stable' }}
if: ${{ matrix.mode == 'stable' || matrix.mode == 'downgrade' }}
- name: Setup Julia latest (pre-releases included)
uses: julia-actions/setup-julia@v2
with:
version: '1'
include-all-prereleases: true
arch: x64
if: ${{ matrix.mode == 'latest' }}
- name: Downgrade to lowest possible compat bounds
uses: julia-actions/julia-downgrade-compat@v2
with:
skip: Pkg # TODO: is this really needed? do we need to add more like LinearAlgebra?
if: ${{ matrix.mode == 'downgrade' }}

- uses: julia-actions/cache@v2
- uses: julia-actions/julia-buildpkg@v1
Expand Down
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