diff --git a/.github/workflows/extra.yml b/.github/workflows/extra.yml
index 92bfa3ec56..3285f58bd6 100644
--- a/.github/workflows/extra.yml
+++ b/.github/workflows/extra.yml
@@ -25,9 +25,10 @@ jobs:
           # - { name: macos32x86, os: macos-latest }
 
         flavor:
-          # Only newsqueak.* builds are fully prepared for all platforms
+          # Only newsqueak.* and pharo.cog.spur builds are fully prepared for all platforms
           - newspeak.cog.spur
           - newspeak.stack.spur
+          - pharo.cog.spur
 
         include:
           - arch: { name: win32x86, os: windows-2019 }
@@ -36,6 +37,8 @@ jobs:
             flavor: squeak.stack.v3
           - arch: { name: win32x86, os: windows-2019 }
             flavor: squeak.cog.spur.lowcode
+          # - arch: { name: win64x64, os: windows-2019 }
+          #   flavor: pharo.stack.spur # third-party not yet working
           # - arch: { name: win32x86, os: windows-2019 }
           #   flavor: pharo.cog.spur.lowcode
 
@@ -43,16 +46,28 @@ jobs:
             flavor: squeak.cog.v3
           - arch: { name: linux32x86, os: ubuntu-18.04 }
             flavor: squeak.stack.v3
+          - arch: { name: linux32x86, os: ubuntu-18.04 }
+            flavor: pharo.sista.spur
           - arch: { name: linux32x86, os: ubuntu-18.04 }
             flavor: pharo.cog.spur.lowcode
           - arch: { name: linux32x86, os: ubuntu-18.04 }
             flavor: pharo.stack.spur.lowcode
 
+          # - arch: { name: macos64x64, os: macos-10.15 }
+          #   flavor: pharo.sista.spur # -Werror bc. decl. missing
+          - arch: { name: macos64x64, os: macos-10.15 }
+            flavor: pharo.stack.spur
           # - arch: { name: macos64x64, os: macos-latest }
           #   flavor: pharo.cog.spur.lowcode # impl. decl. getThisSessionID
           - arch: { name: macos64x64, os: macos-10.15 }
             flavor: pharo.stack.spur.lowcode
 
+        exclude:
+          - arch: { name: win32x86, os: windows-2019 }
+            flavor: pharo.cog.spur # third-party not yet working
+          - arch: { name: win64x64, os: windows-2019 }
+            flavor: pharo.cog.spur # third-party not yet working
+
     runs-on: ${{ matrix.arch.os }}
     name: ${{ matrix.flavor }} for ${{ matrix.arch.name }}
     env:
@@ -64,7 +79,7 @@ jobs:
       MSYS_ENV: ${{ matrix.arch.name == 'win64x64' && 'x86_64' || 'i686' }}
     steps:
       - name: Checkout files
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         # with:
         #   ref: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.ref || 'refs/heads/Cog'}}
 
@@ -87,13 +102,13 @@ jobs:
         run: ./deploy/pack-vm.sh
 
       - name: Store artifact w/ revision
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: ${{ env.ASSET_NAME }}_${{ env.ASSET_REVISION }}
           path: products/${{ env.ASSET_NAME }}.${{ env.ASSET_EXTENSION }}
 
       - name: Update artifact in latest-build
-        uses: ncipollo/release-action@v1.8.6
+        uses: ncipollo/release-action@v1
         if: github.event_name == 'schedule' || (github.event.inputs.should-deploy == 'true' && endsWith( github.ref , 'Cog' ))
         with:
           prerelease: true
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 376df4eb3a..e39110bc34 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -47,15 +47,13 @@ on:
 jobs:
   build:
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
         arch:
           - linux64x64
           - linux32x86
-        flavor:
+        flavor: # for selected pharo.* builds, see extra.yml
           - squeak.cog.spur
-          - pharo.cog.spur
-          # - pharo.stack.spur # build not prepared
         heartbeat:
           - threaded
           - itimer
@@ -69,10 +67,6 @@ jobs:
             flavor: squeak.sista.spur
             heartbeat: threaded
             mode: fast
-          - arch: linux32x86
-            flavor: pharo.sista.spur
-            heartbeat: threaded
-            mode: fast
           # squeak.stack.spur builds are not prepared for itimer
           - arch: linux64x64
             flavor: squeak.stack.spur
@@ -92,11 +86,11 @@ jobs:
     steps:
       - name: Checkout files
         if: github.event_name != 'workflow_dispatch'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Checkout files for new release candidate
         if: github.event_name == 'workflow_dispatch'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           ref: refs/tags/${{ github.event.inputs.tag }}
 
@@ -128,7 +122,7 @@ jobs:
           path: ${{ env.PRODUCTS_PATH }}/${{ env.ASSET_NAME }}.${{ env.ASSET_EXTENSION }}
 
       - name: Update artifact in latest-build
-        uses: ncipollo/release-action@v1.8.6
+        uses: ncipollo/release-action@v1
         if: github.event_name == 'push' && endsWith( github.ref , 'Cog' )
         with:
           prerelease: true
@@ -140,7 +134,7 @@ jobs:
           body: ${{ github.event.head_commit.message }}
 
       - name: Deploy artifact as new release candidate
-        uses: ncipollo/release-action@v1.8.6
+        uses: ncipollo/release-action@v1
         if: github.event_name == 'workflow_dispatch'
         with:
           prerelease: true # release candidate
diff --git a/.github/workflows/macos-arm.yml b/.github/workflows/macos-arm.yml
index e3ddd3b966..e3af3d2397 100644
--- a/.github/workflows/macos-arm.yml
+++ b/.github/workflows/macos-arm.yml
@@ -41,7 +41,7 @@ on:
 jobs:
   build:
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
         arch: 
           - macos64ARMv8
@@ -49,9 +49,6 @@ jobs:
           - squeak.cog.spur
           # - squeak.sista.spur # -Werror bc. decl. missing
           - squeak.stack.spur
-          # - pharo.cog.spur
-          # - pharo.sista.spur # -Werror bc. decl. missing
-          # - pharo.stack.spur
         mode:
           - fast
           - debug
@@ -66,11 +63,11 @@ jobs:
     steps:
       - name: Checkout files
         if: github.event_name != 'workflow_dispatch'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Checkout files for new release candidate
         if: github.event_name == 'workflow_dispatch'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           ref: refs/tags/${{ github.event.inputs.tag }}
 
@@ -107,7 +104,7 @@ jobs:
           path: products/${{ env.ASSET_NAME }}.${{ env.ASSET_EXTENSION }}
 
       - name: Update artifact in latest-build
-        uses: ncipollo/release-action@v1.8.6
+        uses: ncipollo/release-action@v1
         if: github.event_name == 'push' && endsWith( github.ref , 'Cog' )
         with:
           prerelease: true
@@ -119,7 +116,7 @@ jobs:
           body: ${{ github.event.head_commit.message }}
 
       - name: Deploy artifact as new release candidate
-        uses: ncipollo/release-action@v1.8.6
+        uses: ncipollo/release-action@v1
         if: github.event_name == 'workflow_dispatch'
         with:
           prerelease: true # release candidate
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 7c460dd5bf..d4af585ffa 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -41,18 +41,15 @@ on:
 jobs:
   build:
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
         arch: 
           - macos64x64
           # - macos32x86 # Might be deprecated in general
-        flavor:
+        flavor: # for selected pharo.* builds, see extra.yml
           - squeak.cog.spur
           # - squeak.sista.spur # -Werror bc. decl. missing
           - squeak.stack.spur
-          - pharo.cog.spur
-          # - pharo.sista.spur # -Werror bc. decl. missing
-          - pharo.stack.spur
         mode:
           - fast
           - debug
@@ -67,11 +64,11 @@ jobs:
     steps:
       - name: Checkout files
         if: github.event_name != 'workflow_dispatch'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Checkout files for new release candidate
         if: github.event_name == 'workflow_dispatch'
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           ref: refs/tags/${{ github.event.inputs.tag }}
 
@@ -108,7 +105,7 @@ jobs:
           path: products/${{ env.ASSET_NAME }}.${{ env.ASSET_EXTENSION }}
 
       - name: Update artifact in latest-build
-        uses: ncipollo/release-action@v1.8.6
+        uses: ncipollo/release-action@v1
         if: github.event_name == 'push' && endsWith( github.ref , 'Cog' )
         with:
           prerelease: true
@@ -120,7 +117,7 @@ jobs:
           body: ${{ github.event.head_commit.message }}
 
       - name: Deploy artifact as new release candidate
-        uses: ncipollo/release-action@v1.8.6
+        uses: ncipollo/release-action@v1
         if: github.event_name == 'workflow_dispatch'
         with:
           prerelease: true # release candidate
diff --git a/.github/workflows/win.yml b/.github/workflows/win.yml
index 61f36c36bd..ac0f4f1375 100644
--- a/.github/workflows/win.yml
+++ b/.github/workflows/win.yml
@@ -44,16 +44,14 @@ on:
 jobs:
   build:
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
         arch: 
           - win64x64
           - win32x86
-        flavor:
+        flavor: # for selected pharo.* builds, see extra.yml
           - squeak.cog.spur
           - squeak.stack.spur
-          # - pharo.cog.spur # third-party not yet working
-          # - pharo.stack.spur # third-party not yet working
         mode:
           - fast
           - debug
@@ -63,9 +61,6 @@ jobs:
           - arch: win32x86 
             flavor: squeak.sista.spur
             mode: fast
-          # - arch: win32x86 
-          #   flavor: pharo.sista.spur
-          #   mode: fast
 
     runs-on: windows-2019
     name: ${{ matrix.flavor }} for ${{ matrix.arch }}${{ matrix.mode == 'debug' && ' (DEBUG)' || matrix.mode == 'assert' && ' (ASSERT)' || '' }}