From 499d29c870e11588efd8a31709e0295681b5163d Mon Sep 17 00:00:00 2001
From: Joshua Lampert <joshua.lampert@uni-hamburg.de>
Date: Fri, 3 Apr 2026 16:22:02 +0200
Subject: [PATCH 1/2] fix Downgrade

---
 .github/workflows/Downgrade.yml | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/Downgrade.yml b/.github/workflows/Downgrade.yml
index b154c484..e34fb072 100644
--- a/.github/workflows/Downgrade.yml
+++ b/.github/workflows/Downgrade.yml
@@ -42,14 +42,16 @@ jobs:
         with:
           skip: LinearAlgebra
           projects: ., test
-      - uses: julia-actions/julia-buildpkg@v1
-        env:
-          PYTHON: ""
-      - name: Run tests without coverage
-        uses: julia-actions/julia-runtest@v1
-        with:
-          coverage: false
-          allow_reresolve: false
-          force_latest_compatible_version: false
-        env:
-          PYTHON: ""
+          mode: forcedeps
+      # We run the tests manually instead of using julia-action/julia-builpkg and julia-action/julia-runtest or `Pkg.test`
+      # because otherwise the downgraded Manifest.toml is not used in the tests under julia <v1.12
+      # see also https://github.com/julia-actions/julia-downgrade-compat/blob/00f940b7be2b50389571ed016d603be561649103/README.md#L89
+      - name: Run tests
+        run: |
+          julia --project=test --color=yes -e '
+            import Pkg
+            Pkg.develop(Pkg.PackageSpec(path=pwd()))
+            Pkg.instantiate()
+            Pkg.status(; mode = Pkg.PKGMODE_MANIFEST)
+            include("test/runtests.jl")
+          '

From f7453343886b769db6511ec272b3e4683358c5d3 Mon Sep 17 00:00:00 2001
From: Joshua Lampert <joshua.lampert@uni-hamburg.de>
Date: Fri, 3 Apr 2026 16:26:47 +0200
Subject: [PATCH 2/2] bump version of StaticArrays.jl to v1.9.8

---
 test/Project.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/Project.toml b/test/Project.toml
index 49935b22..c72bc77a 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -20,7 +20,7 @@ ExplicitImports = "1.6.0"
 LinearAlgebra = "1"
 Meshes = "0.53, 0.54, 0.55, 0.56"
 SpecialFunctions = "2"
-StaticArrays = "1"
+StaticArrays = "1.9.8"
 TestItemRunner = "1"
 TestItems = "1"
 Unitful = "1.19"