diff --git a/.github/actions/build_and_coverage/action.yml b/.github/actions/build_and_coverage/action.yml
deleted file mode 100644
index d1fb2610..00000000
--- a/.github/actions/build_and_coverage/action.yml
+++ /dev/null
@@ -1,76 +0,0 @@
-name: "Build & coverage"
-description: "Check the code, build, testing & generate project coverage"
-
-runs:
-  using: "composite"
-  steps:
-
-      # SETUP & CACHE
-    - uses: coursier/setup-action@v1.3.0
-      with:
-        jvm: adopt:8
-        apps: sbt scala scalafmt  # https://github.com/coursier/apps
-
-    - uses: coursier/cache-action@v6
-      with:
-        extraKey: "${{ env.SPARK_VERSION }}"
-
-      # CHECK CODE FORMAT
-    - name: Code Format
-      id: code_format
-      if: contains(env.SCOPE, 'test')
-      run: sbt -DsparkVersion=${{ env.SPARK_VERSION }} scalafmtCheckAll
-      shell: bash
-
-      # TESTING & COVERAGE
-    - name: Test & coverage 📋
-      id: test_coverage
-      if: steps.code_format.conclusion == 'success'
-      run: sbt -DsparkVersion=${{ env.SPARK_VERSION }} coverage +core/test coverageAggregate
-      shell: bash
-
-    - name: Test Summary
-      id: test_summary
-      if: ${{ success() && steps.test_coverage.conclusion == 'success' || failure() && steps.test_coverage.conclusion == 'failure' }}
-      uses: test-summary/action@v2.0
-      with:
-        paths: "./core/target/test-reports/**/TEST-*.xml"
-        output: "test-summary.md"
-
-    - name: Add 2 GitHub step summary
-      if: ${{ (success() || failure()) && steps.test_summary.conclusion == 'success' }}
-      shell: bash
-      run: cat test-summary.md >> $GITHUB_STEP_SUMMARY
-
-    - name: Add summary link
-      id: add_summary_link
-      if: ${{ (success() || failure()) && steps.test_summary.conclusion == 'success' }}
-      shell: bash
-      run: |
-        img=$(head -1 test-summary.md | perl -pe 's/(<.*?.>).*/$1/')
-        url="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
-        echo "| ${{ env.SPARK_VERSION }} | [${img}](${url}) |" > test-summary-${{ env.SPARK_VERSION }}.md
-        cat -e test-summary-${{ env.SPARK_VERSION }}.md
-
-    - name: Upload test summary
-      if: ${{ github.event_name == 'pull_request' && ((success() || failure()) && steps.add_summary_link.conclusion == 'success') }}
-      uses: actions/upload-artifact@v3
-      with:
-        name: "test-summary-${{ env.SPARK_VERSION }}.md"
-        path: "test-summary-${{ env.SPARK_VERSION }}.md"
-        if-no-files-found: error
-        retention-days: 1
-
-    - name: Publish coverage to codecov 📊
-      if: contains(env.SCOPE, 'uploadReport')
-      uses: codecov/codecov-action@v3
-      with:
-        files: ./target/scala-2.12/scoverage-report/scoverage.xml,./target/scala-2.13/scoverage-report/scoverage.xml
-        fail_ci_if_error: true
-        verbose: false
-        flags: 'spark-${{ env.SPARK_VERSION }}.x'
-
-      # CLEAN PROJECT BEFORE CACHE
-    - name: Cleaning before cache 🚯
-      if: ${{ always() }}
-      uses: ./.github/actions/clean_cache
diff --git a/.github/codecov.yml b/.github/codecov.yml
index 70114e3a..b6cfe0b0 100644
--- a/.github/codecov.yml
+++ b/.github/codecov.yml
@@ -3,7 +3,7 @@ codecov:
   branch: main
   notify:
     wait_for_ci: true
-    after_n_builds: 4
+    after_n_builds: 5
 
 coverage:
   precision: 2
@@ -37,4 +37,4 @@ comment:
   layout: "reach,diff,flags,files,footer"
   behavior: once  # once: update, if exists. Otherwise, post new. Skip if deleted.
   require_changes: false  # if true: only post the comment if coverage changes
-  after_n_builds: 4
+  after_n_builds: 5
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 81d69ba4..34592059 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
     name: Check Dependencies
     steps:
       - name: PR Dependency Check
-        uses: gregsdennis/dependencies-action@1.3.2
+        uses: gregsdennis/dependencies-action@1.3.3
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -64,6 +64,7 @@ jobs:
     uses: ./.github/workflows/wc_build.yml
     with:
       matrix_filter: "[]"
+    secrets: inherit
 
   # CHECK MDOC IS OK
   check_mdoc:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a1e0d03c..0b1fff24 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -21,6 +21,7 @@ jobs:
     uses: ./.github/workflows/wc_build.yml
     with:
       matrix_filter: "[?isRelease==`release`]"
+    secrets: inherit
 
   # PUBLISH JARS AT MAVEN CENTRAL
   matrix_prep:
diff --git a/.github/workflows/wc_build.yml b/.github/workflows/wc_build.yml
index a33f7af6..a5f21696 100644
--- a/.github/workflows/wc_build.yml
+++ b/.github/workflows/wc_build.yml
@@ -6,6 +6,9 @@ on:
       matrix_filter:
         required: true
         type: string
+    secrets:
+      CODECOV_TOKEN:
+        required: true
 
 jobs:
   matrix_prep:
@@ -29,7 +32,73 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: ./.github/actions/build_and_coverage
-        env:
-          SPARK_VERSION: ${{ matrix.spark }}
-          SCOPE: ${{ matrix.scope }}
+      # SETUP & CACHE
+      - uses: coursier/setup-action@v1.3.0
+        with:
+          jvm: adopt:8
+          apps: sbt scala scalafmt  # https://github.com/coursier/apps
+
+      - uses: coursier/cache-action@v6
+        with:
+          extraKey: "${{ matrix.spark }}"
+
+        # CHECK CODE FORMAT
+      - name: Code Format
+        id: code_format
+        if: contains(matrix.scope, 'test')
+        run: sbt -DsparkVersion=${{ matrix.spark }} scalafmtCheckAll
+        shell: bash
+
+        # TESTING & COVERAGE
+      - name: Test & coverage 📋
+        id: test_coverage
+        if: steps.code_format.conclusion == 'success'
+        run: sbt -DsparkVersion=${{ matrix.spark }} coverage +core/test coverageAggregate
+        shell: bash
+
+      - name: Test Summary
+        id: test_summary
+        if: ${{ success() && steps.test_coverage.conclusion == 'success' || failure() && steps.test_coverage.conclusion == 'failure' }}
+        uses: test-summary/action@v2.0
+        with:
+          paths: "./core/target/test-reports/**/TEST-*.xml"
+          output: "test-summary.md"
+
+      - name: Add 2 GitHub step summary
+        if: ${{ (success() || failure()) && steps.test_summary.conclusion == 'success' }}
+        shell: bash
+        run: cat test-summary.md >> $GITHUB_STEP_SUMMARY
+
+      - name: Add summary link
+        id: add_summary_link
+        if: ${{ (success() || failure()) && steps.test_summary.conclusion == 'success' }}
+        shell: bash
+        run: |
+          img=$(head -1 test-summary.md | perl -pe 's/(<.*?.>).*/$1/')
+          url="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          echo "| ${{ matrix.spark }} | [${img}](${url}) |" > test-summary-${{ matrix.spark }}.md
+          cat -e test-summary-${{ matrix.spark }}.md
+
+      - name: Upload test summary
+        if: ${{ github.event_name == 'pull_request' && ((success() || failure()) && steps.add_summary_link.conclusion == 'success') }}
+        uses: actions/upload-artifact@v3
+        with:
+          name: "test-summary-${{ matrix.spark }}.md"
+          path: "test-summary-${{ matrix.spark }}.md"
+          if-no-files-found: error
+          retention-days: 1
+
+      - name: Publish coverage to codecov 📊
+        if: contains(matrix.scope, 'uploadReport')
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./target/scala-2.12/scoverage-report/scoverage.xml,./target/scala-2.13/scoverage-report/scoverage.xml
+          fail_ci_if_error: true
+          verbose: false
+          flags: 'spark-${{ matrix.spark }}.x'
+
+        # CLEAN PROJECT BEFORE CACHE
+      - name: Cleaning before cache 🚯
+        if: ${{ always() }}
+        uses: ./.github/actions/clean_cache