diff --git a/.github/workflows/Codecov.yml b/.github/workflows/Codecov.yml
new file mode 100644
index 0000000..0a6156c
--- /dev/null
+++ b/.github/workflows/Codecov.yml
@@ -0,0 +1,51 @@
+name: Codecov
+
+on:
+  workflow_run:
+    workflows: ["Tests"]
+    types:
+      - completed
+
+jobs:
+  upload:
+    if: >-
+      github.event.workflow_run.conclusion == 'success' &&
+      github.event.workflow_run.event != 'schedule'
+    permissions:
+      actions: read
+      contents: read
+      pull-requests: read
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@v4
+      - name: Download coverage artifacts
+        uses: actions/download-artifact@v4
+        with:
+          pattern: coverage
+          path: /tmp/coverage-artifacts
+          merge-multiple: true
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Restore coverage files
+        run: |
+          cp -v /tmp/coverage-artifacts/*.json . 2>/dev/null || true
+      - name: Resolve PR number on PR events
+        id: resolve_pr
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          PR_NUMBER=""
+          if [ "${{ github.event.workflow_run.event }}" = "pull_request" ]; then
+            HEAD="${{ github.event.workflow_run.head_repository.owner.login }}:${{ github.event.workflow_run.head_branch }}"
+            PR_NUMBER=$(gh api "repos/${{ github.repository }}/pulls?state=all&head=${HEAD}" --jq ".[0].number // empty")
+          fi
+          echo "pr_number=${PR_NUMBER}" >> "$GITHUB_OUTPUT"
+          echo "Resolved PR: ${PR_NUMBER:-(none)}"
+      - name: Upload to Codecov
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+          CODECOV_COMMIT_SHA: ${{ github.event.workflow_run.head_sha }}
+          CODECOV_BRANCH: ${{ github.event.workflow_run.head_branch }}
+          CODECOV_PR: ${{ steps.resolve_pr.outputs.pr_number }}
+        run: ./dev/upload_codecov.sh
diff --git a/.github/workflows/Tests.yml b/.github/workflows/Tests.yml
index 44c4a85..7652eb8 100644
--- a/.github/workflows/Tests.yml
+++ b/.github/workflows/Tests.yml
@@ -37,9 +37,8 @@ jobs:
         run: |
           curl --fail -X PUT -H "Accept: application/vnd.github.v3+json" -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" "https://api.github.com/repos/$GITHUB_REPOSITORY/actions/workflows/Tests.yml/enable"
       - name: Check out repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
-          # the persisted token interferes with the subsplit token used below
           persist-credentials: false
           fetch-depth: 0
       - name: Move checked out repo to GAP user root dir
@@ -66,10 +65,27 @@ jobs:
       - name: Test LoopIntegrals
         run: |
           make -C LoopIntegrals --trace -j $(nproc) --output-sync ci-test
-      - name: Release package or simulate release
+      - name: Process coverage files
+        if: always() && matrix.image == 'ghcr.io/homalg-project/gap-docker:latest'
         run: |
           cd LoopIntegrals
           python3 dev/process_coverage.py
+      - name: Collect coverage files
+        if: always() && github.event_name != 'schedule' && matrix.image == 'ghcr.io/homalg-project/gap-docker:latest'
+        run: |
+          mkdir -p /tmp/coverage-collect
+          cp LoopIntegrals/coverage*.json /tmp/coverage-collect/ 2>/dev/null || true
+      - name: Upload coverage artifact
+        if: always() && github.event_name != 'schedule' && matrix.image == 'ghcr.io/homalg-project/gap-docker:latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage
+          path: /tmp/coverage-collect/
+          if-no-files-found: ignore
+          retention-days: 1
+      - name: Release package or simulate release
+        run: |
+          cd LoopIntegrals
           git config --global user.name "Bot"
           git config --global user.email "empty"
           CUR_SHA=$(git rev-parse --verify HEAD)
@@ -81,10 +97,3 @@ jobs:
           else \
             TOKEN="${{ secrets.GITHUB_TOKEN }}" ./dev/simulate_dist.sh; \
           fi
-      - name: Upload code coverage
-        if: github.event_name != 'schedule' && matrix.image == 'ghcr.io/homalg-project/gap-docker:latest'
-        env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-        run: |
-          cd LoopIntegrals
-          ./dev/upload_codecov.sh
diff --git a/PackageInfo.g b/PackageInfo.g
index 375859a..41a6790 100644
--- a/PackageInfo.g
+++ b/PackageInfo.g
@@ -10,7 +10,7 @@ SetPackageInfo( rec(
 
 PackageName := "LoopIntegrals",
 Subtitle := "Compute master integrals using commutative and noncommutative methods from computational algebraic geometry",
-Version := "2025.12-01",
+Version := "2026.05-02",
 
 Date := (function ( ) if IsBound( GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE ) then return GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE; else return Concatenation( ~.Version{[ 1 .. 4 ]}, "-", ~.Version{[ 6, 7 ]}, "-01" ); fi; end)( ),
 
diff --git a/dev/upload_codecov.sh b/dev/upload_codecov.sh
index ff3812c..18d0d66 100755
--- a/dev/upload_codecov.sh
+++ b/dev/upload_codecov.sh
@@ -28,9 +28,21 @@ else
   echo -e "\033[0;32mUsing CODECOV_TOKEN from environment variable.\033[0m"
 fi
 
+# build extra args for commit/branch/PR override (used by workflow_run context)
+EXTRA_ARGS=""
+if [ -n "$CODECOV_COMMIT_SHA" ]; then
+  EXTRA_ARGS="$EXTRA_ARGS -C $CODECOV_COMMIT_SHA"
+fi
+if [ -n "$CODECOV_BRANCH" ]; then
+  EXTRA_ARGS="$EXTRA_ARGS -B $CODECOV_BRANCH"
+fi
+if [ -n "$CODECOV_PR" ]; then
+  EXTRA_ARGS="$EXTRA_ARGS -P $CODECOV_PR"
+fi
+
 # execute
 chmod +x codecov
-while ! ./codecov -Z -v -s ../ -t $CODECOV_TOKEN; do
+while ! ./codecov -Z -v -s ../ -t $CODECOV_TOKEN $EXTRA_ARGS; do
     echo "Codecov upload failed, retrying in 60s"
     sleep 60
 done
diff --git a/examples/1LoopBox.g b/examples/1LoopBox.g
index ca70548..91efc15 100644
--- a/examples/1LoopBox.g
+++ b/examples/1LoopBox.g
@@ -121,8 +121,9 @@ gen2 := GeneratorsOfScalelessSectors( LD, [ 2, 2, 2, 2 ] );
 Display( gen2 );
 #! D1*D2*D3^2*D4^2,D1^2*D2*D3*D4^2,D1*D2^2*D3^2*D4,D1^2*D2^2*D3*D4
 prel2 := ColumnReversedMatrixOfCoefficientsOfParametricIBPs( LD, 2 );
-#! [ <A non-zero 7 x 11 matrix over an external ring>,
-#!   [ D1_*D3_, D1_*D4_, D2_*D4_, D3_*D4_, D1_, D2_, D3_, D4_, 1, D1, D2 ] ]
+#! [ <A non-zero 9 x 13 matrix over an external ring>,
+#!   [ D1_*D2_, D1_*D3_, D2_*D3_, D1_*D4_, D2_*D4_, D3_*D4_, D1_, D2_, D3_, D4_,
+#!     1, D1, D2 ] ]
 dibps := MatrixOfIBPRelationsWithDimensionShift( LD );
 #! <An unevaluated 5 x 1 matrix over a residue class ring>
 Display( dibps );
diff --git a/examples/julia/notebooks/1LoopBox.ipynb b/examples/julia/notebooks/1LoopBox.ipynb
index 1c963a4..5aa7ee4 100644
--- a/examples/julia/notebooks/1LoopBox.ipynb
+++ b/examples/julia/notebooks/1LoopBox.ipynb
@@ -10,7 +10,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "CapAndHomalg v\u001b[32m1.6.8\u001b[39m\n",
+      "CapAndHomalg v\u001b[32m1.6.10\u001b[39m\n",
       "Imported OSCAR's components GAP and Singular_jll\n",
       "Type: ?CapAndHomalg for more information\n"
      ]
@@ -955,7 +955,7 @@
    "file_extension": ".jl",
    "mimetype": "application/julia",
    "name": "julia",
-   "version": "1.12.1"
+   "version": "1.12.6"
   }
  },
  "nbformat": 4,
diff --git a/examples/julia/notebooks/1LoopBox_using_Ore_algebra.ipynb b/examples/julia/notebooks/1LoopBox_using_Ore_algebra.ipynb
index 0f787c8..5d2ee02 100644
--- a/examples/julia/notebooks/1LoopBox_using_Ore_algebra.ipynb
+++ b/examples/julia/notebooks/1LoopBox_using_Ore_algebra.ipynb
@@ -50,7 +50,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "CapAndHomalg v\u001b[32m1.6.8\u001b[39m\n",
+      "CapAndHomalg v\u001b[32m1.6.10\u001b[39m\n",
       "Imported OSCAR's components GAP and Singular_jll\n",
       "Type: ?CapAndHomalg for more information\n"
      ]
@@ -1340,7 +1340,7 @@
    "file_extension": ".jl",
    "mimetype": "application/julia",
    "name": "julia",
-   "version": "1.12.1"
+   "version": "1.12.6"
   }
  },
  "nbformat": 4,
diff --git a/examples/julia/notebooks/1LoopTadpole.ipynb b/examples/julia/notebooks/1LoopTadpole.ipynb
index 4925c0e..025da9f 100644
--- a/examples/julia/notebooks/1LoopTadpole.ipynb
+++ b/examples/julia/notebooks/1LoopTadpole.ipynb
@@ -10,7 +10,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "CapAndHomalg v\u001b[32m1.6.8\u001b[39m\n",
+      "CapAndHomalg v\u001b[32m1.6.10\u001b[39m\n",
       "Imported OSCAR's components GAP and Singular_jll\n",
       "Type: ?CapAndHomalg for more information\n"
      ]
@@ -857,7 +857,7 @@
    "file_extension": ".jl",
    "mimetype": "application/julia",
    "name": "julia",
-   "version": "1.12.1"
+   "version": "1.12.6"
   }
  },
  "nbformat": 4,
diff --git a/examples/notebooks/1LoopBox.ipynb b/examples/notebooks/1LoopBox.ipynb
index c954159..5a6c032 100644
--- a/examples/notebooks/1LoopBox.ipynb
+++ b/examples/notebooks/1LoopBox.ipynb
@@ -50,7 +50,14 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "CapAndHomalg v\u001b[32m1.6.8\u001b[39m\n",
+      "\r",
+      "CapAndHomalg v\u001b[32m1.6.10\u001b[39m\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
       "Imported OSCAR's components GAP and Singular_jll\n",
       "Type: ?CapAndHomalg for more information\n"
      ]
@@ -1035,7 +1042,7 @@
    "file_extension": ".jl",
    "mimetype": "application/julia",
    "name": "julia",
-   "version": "1.12.3"
+   "version": "1.12.6"
   }
  },
  "nbformat": 4,