diff --git a/.github/actions/update-sbom/action.yml b/.github/actions/update-sbom/action.yml
new file mode 100644
index 000000000..7f439e438
--- /dev/null
+++ b/.github/actions/update-sbom/action.yml
@@ -0,0 +1,31 @@
+name: Generate SBOM
+description: Generates CycloneDX SBOM using CycloneDX PHP Composer plugin
+inputs:
+  output-file:
+    description: "Output filename for the SBOM"
+    required: false
+    default: "sbom.json"
+runs:
+  using: composite
+  steps:
+    - name: Allow CycloneDX plugin
+      shell: bash
+      run: composer config allow-plugins.cyclonedx/cyclonedx-php-composer true
+    - name: Install CycloneDX plugin
+      shell: bash
+      run: composer require --dev cyclonedx/cyclonedx-php-composer --ignore-platform-reqs
+    - name: Generate SBOM
+      shell: bash
+      working-directory: ${{ inputs.working-directory }}
+      run: |
+        echo "Generating SBOM for 'php' project..."
+        composer CycloneDX:make-sbom --output-file=${{ inputs.output-file }} --output-format=json --spec-version=1.5
+    - name: Validate SBOM presence
+      shell: bash
+      run: |
+        if [ ! -f "${{ inputs.output-file }}" ]; then
+          echo "Error: SBOM file not found"
+          exit 1
+        fi
+        
+        echo "SBOM file validated: ${{ inputs.output-file }}"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 37bb2ed3f..a8ebde73c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,6 +14,9 @@ on:
         type: "string"
 
 env:
+  PHP_VERSION: "8.2"
+  DRIVER_VERSION: "mongodb/mongo-php-driver@${{ inputs.version }}"
+  SBOM_FILE: "sbom.json"
   default-release-message: |
     The PHP team is happy to announce that version {0} of the MongoDB PHP library is now available.
 
@@ -48,12 +51,6 @@ jobs:
       - name: "Create release output"
         run: echo '🎬 Release process for version ${{ inputs.version }} started by @${{ github.triggering_actor }}' >> $GITHUB_STEP_SUMMARY
 
-      - name: "Generate token and checkout repository"
-        uses: mongodb-labs/drivers-github-tools/secure-checkout@v3
-        with:
-          app_id: ${{ vars.APP_ID }}
-          private_key: ${{ secrets.APP_PRIVATE_KEY }}
-
       - name: "Store version numbers in env variables"
         run: |
           echo RELEASE_VERSION=${{ inputs.version }} >> $GITHUB_ENV
@@ -93,6 +90,84 @@ jobs:
           git checkout -b ${RELEASE_BRANCH}
           git push origin ${RELEASE_BRANCH}
 
+      #
+      # Preliminary checks done - generate SBOM before tagging
+      #
+      - name: Checkout repository (Base Branch)
+        uses: actions/checkout@v5
+        with:
+          ref: ${{ github.event.pull_request.base.ref || github.ref }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: "Setup PHP environment"
+        id: setup-php
+        uses: ./.github/actions/setup
+        with:
+          php-version: ${{ env.PHP_VERSION }}
+          driver-version: ${{ env.DRIVER_VERSION }}
+          working-directory: '.'
+        continue-on-error: true
+
+      - name: "Generate/Update composer.lock"
+        id: composer-lock
+        run: |
+          echo "Resolving dependencies and generating composer.lock..."
+          composer update --no-install --ignore-platform-reqs
+          echo "composer.lock generated with resolved versions"
+        continue-on-error: true
+
+      - name: "Generate SBOM"
+        id: generate-sbom
+        if: steps.composer-lock.outcome == 'success'
+        uses: ./.github/actions/update-sbom
+        with:
+          php-version: ${{ env.PHP_VERSION }}
+          working-directory: '.'
+          output-file: ${{ env.SBOM_FILE }}
+          output-format: 'json'
+        continue-on-error: true
+
+      - name: "Check for SBOM changes"
+        id: sbom_status
+        if: steps.generate-sbom.outcome == 'success'
+        run: |
+          JQ_NORMALIZER='del(.serialNumber) | del(.metadata.timestamp) | walk(if type == "object" and .timestamp then .timestamp = "TIMESTAMP_NORMALIZED" else . end)'
+
+          if ! git show HEAD:${{ env.SBOM_FILE }} > /dev/null 2>&1; then
+            echo "HAS_CHANGES=true" >> $GITHUB_OUTPUT
+            echo "SBOM file is new"
+            exit 0
+          fi
+
+          if diff -q \
+             <(git show HEAD:${{ env.SBOM_FILE }} | jq -r "$JQ_NORMALIZER") \
+             <(cat ${{ env.SBOM_FILE }} | jq -r "$JQ_NORMALIZER"); then
+            echo "HAS_CHANGES=false" >> $GITHUB_OUTPUT
+            echo "No changes detected in SBOM"
+          else
+            echo "HAS_CHANGES=true" >> $GITHUB_OUTPUT
+            echo "Changes detected in SBOM"
+          fi
+        continue-on-error: true
+
+      - name: "Commit SBOM changes"
+        if: steps.sbom_status.outputs.HAS_CHANGES == 'true'
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add ${{ env.SBOM_FILE }}
+          git commit -m "chore: Update SBOM for release ${{ inputs.version }}"
+          git push
+          echo "📦 SBOM updated and committed" >> $GITHUB_STEP_SUMMARY
+        continue-on-error: true
+
+      - name: "Report SBOM status"
+        run: |
+          if [[ "${{ steps.generate-sbom.outcome }}" == "success" ]]; then
+            echo "✅ SBOM generation completed successfully" >> $GITHUB_STEP_SUMMARY
+          else
+            echo "⚠️ SBOM generation skipped or failed - continuing with release" >> $GITHUB_STEP_SUMMARY
+          fi
+
       #
       # Preliminary checks done - commence the release process
       #