Create downgrade_CI.yml

.github/workflows/downgrade_CI.yml

@@ -0,0 +1,28 @@
+name: Downgrade
+on:
+  pull_request:
+    branches:
+      - master
+    paths-ignore:
+      - 'docs/**'
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - 'docs/**'
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        version: ['1']
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.version }}
+      - uses: cjdoris/julia-downgrade-compat-action@v1
+        with:
+          skip: Pkg,TOML
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1

CHANGELOG.md

@@ -5,6 +5,7 @@ Version 0.4.1
 -------------
 
 - ![Feature][badge-feature] Added a new, simple `SpawnAllScheduler` that spawns a task per input element (can be a lot of tasks!).
+- ![Info][badge-info] Added downgrade_CI which makes sure the testsuite works on the oldest versions of dependancies.
 
 Version 0.4.0
 -------------