diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 7d3bc1b..1aaf07f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -10,6 +10,8 @@ on:
       - master
     paths-ignore:
       - 'docs/**'
+  schedule:
+      - cron: '57 0 * * 5'
 jobs:
   test:
     runs-on: ubuntu-latest
@@ -19,26 +21,23 @@ jobs:
           - Core
         version:
           - '1'
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
     steps:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
-      - uses: actions/cache@v3
-        env:
-          cache-name: cache-artifacts
+      - uses: julia-actions/cache@v1
         with:
-          path: ~/.julia/artifacts
-          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-test-${{ env.cache-name }}-
-            ${{ runner.os }}-test-
-            ${{ runner.os }}-
+          token: ${{ secrets.GITHUB_TOKEN }}
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
-        env:
-          GROUP: ${{ matrix.group }}
+        with:
+          depwarn: error
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v3
         with:
-          file: lcov.info
+          file: lcov.info
\ No newline at end of file
diff --git a/.github/workflows/Documentation.yml b/.github/workflows/Documentation.yml
index 7b4b9ab..8137dc8 100644
--- a/.github/workflows/Documentation.yml
+++ b/.github/workflows/Documentation.yml
@@ -7,6 +7,8 @@ on:
       - 'release-'
     tags: '*'
   pull_request:
+  schedule:
+    - cron: '57 0 * * 5'
 
 jobs:
   build:
diff --git a/.github/workflows/Downgrade.yml b/.github/workflows/Downgrade.yml
index be85e50..ca84105 100644
--- a/.github/workflows/Downgrade.yml
+++ b/.github/workflows/Downgrade.yml
@@ -10,22 +10,33 @@ on:
       - master
     paths-ignore:
       - 'docs/**'
+  schedule:
+    - cron: '57 0 * * 5'
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        version: ['1']
         group:
           - Core
+        version:
+          - '1'
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
     steps:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
       - uses: cjdoris/julia-downgrade-compat-action@v1
-#        if: ${{ matrix.version == '1.6' }}
         with:
           skip: Pkg,TOML
+      - uses: julia-actions/cache@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
       - uses: julia-actions/julia-buildpkg@v1
-      - uses: julia-actions/julia-runtest@v1
\ No newline at end of file
+      - uses: julia-actions/julia-runtest@v1
+        with:
+          depwarn: error
\ No newline at end of file
diff --git a/test/runtests.jl b/test/runtests.jl
index 12e6ded..d1315c3 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -2,7 +2,6 @@ using Pkg
 using SafeTestsets
 
 const GROUP = get(ENV, "GROUP", "All")
-const is_APPVEYOR = Sys.iswindows() && haskey(ENV, "APPVEYOR")
 
 function activate_downstream_env()
     Pkg.activate("GPU")
@@ -11,32 +10,16 @@ function activate_downstream_env()
 end
 
 if GROUP == "All" || GROUP == "Core"
-    @safetestset "Quality Assurance" begin
-        include("qa.jl")
-    end
-    @safetestset "DiffCache Dispatch" begin
-        include("core_dispatch.jl")
-    end
-    @safetestset "DiffCache ODE tests" begin
-        include("core_odes.jl")
-    end
-    @safetestset "DiffCache Resizing" begin
-        include("core_resizing.jl")
-    end
-    @safetestset "DiffCache Nested Duals" begin
-        include("core_nesteddual.jl")
-    end
-    @safetestset "DiffCache Sparsity Support" begin
-        include("sparsity_support.jl")
-    end
-    @safetestset "GeneralLazyBufferCache" begin
-        include("general_lbc.jl")
-    end
+    @safetestset "Quality Assurance" include("qa.jl")
+    @safetestset "DiffCache Dispatch" include("core_dispatch.jl")
+    @safetestset "DiffCache ODE tests" include("core_odes.jl")
+    @safetestset "DiffCache Resizing" include("core_resizing.jl")
+    @safetestset "DiffCache Nested Duals" include("core_nesteddual.jl")
+    @safetestset "DiffCache Sparsity Support" include("sparsity_support.jl")
+    @safetestset "GeneralLazyBufferCache" include("general_lbc.jl")
 end
 
 if GROUP == "GPU"
     activate_downstream_env()
-    @safetestset "GPU tests" begin
-        include("gpu_all.jl")
-    end
+    @safetestset "GPU tests" include("gpu_all.jl")
 end