diff --git a/.github/workflows/merge-approved-pr.yml b/.github/workflows/merge-approved-pr.yml
new file mode 100644
index 00000000..27f2cb7b
--- /dev/null
+++ b/.github/workflows/merge-approved-pr.yml
@@ -0,0 +1,139 @@
+name: Merge Approved PR
+
+on:
+  workflow_call:
+    inputs:
+      pr-number:
+        required: true
+        type: number
+        description: 'The number of the pull request to process'
+    secrets:
+      github-token:
+        required: true
+        description: 'GitHub token with permissions to merge'
+
+jobs:
+  merge-pr:
+    runs-on: ubuntu-latest
+    steps:
+      # Fetch PR metadata (head and base branches) using the GitHub API
+      - name: Get PR Details
+        id: get-pr
+        uses: actions/github-script@v7
+        with:
+          github-token: ${{ secrets.github-token }}
+          script: |
+            // Fetch full details of the pull request associated with the comment
+            const { data: pr } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: ${{ inputs.pr-number }}
+            });
+
+            // Output the base and head branch names for subsequent steps
+            core.setOutput('base', pr.base.ref);
+            core.setOutput('head', pr.head.ref);
+
+      # Verify that the PR targets 'main' from 'stable-main-x.y.z'
+      - name: Verify Branch Names
+        id: verify-branches
+        run: |
+          # Define the required branch pattern
+          REQUIRED_BASE="main"
+          # Head branch must match pattern: stable-main-X.Y.Z where X, Y, Z are integers
+          HEAD_PATTERN="^stable-main-[0-9]+\.[0-9]+\.[0-9]+$"
+
+          # Get actual values from the previous step
+          ACTUAL_BASE="${{ steps.get-pr.outputs.base }}"
+          ACTUAL_HEAD="${{ steps.get-pr.outputs.head }}"
+
+          # Compare actual branches against requirements
+          if [[ "$ACTUAL_BASE" != "$REQUIRED_BASE" ]] || ! [[ "$ACTUAL_HEAD" =~ $HEAD_PATTERN ]]; then
+            echo "Skipping: PR must be from 'stable-main-X.Y.Z' to '$REQUIRED_BASE'. Found $ACTUAL_HEAD -> $ACTUAL_BASE"
+            echo "should_skip=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "Branches match requirements: Source '$ACTUAL_HEAD' -> Target '$ACTUAL_BASE'."
+            echo "should_skip=false" >> "$GITHUB_OUTPUT"
+          fi
+
+      # Check if the PR has the required approval status
+      - name: Verify Approval
+        id: verify-approval
+        if: steps.verify-branches.outputs.should_skip != 'true'
+        uses: actions/github-script@v7
+        with:
+          github-token: ${{ secrets.github-token }}
+          script: |
+            // Fetch all reviews for the PR
+            const { data: reviews } = await github.rest.pulls.listReviews({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: ${{ inputs.pr-number }}
+            });
+
+            // Fetch members of the release team
+            let teamMembers = [];
+            try {
+              // Note: This requires a token with 'read:org' scope if the team is in an organization.
+              // GITHUB_TOKEN typically does not have this scope. Use a PAT if this fails.
+              const { data: members } = await github.rest.teams.listMembersInOrg({
+                org: context.repo.owner,
+                team_slug: 'release-team',
+                per_page: 100
+              });
+              teamMembers = members.map(m => m.login);
+            } catch (error) {
+              // Fallback: If we can't fetch team members (e.g. due to token permissions),
+              // we can fail or fallback to author_association.
+              // Given the strict requirement for "Release Team", we must fail if we can't verify it.
+              console.log(`Error fetching release-team members for org '${context.repo.owner}': ${error.message}`);
+              console.log('Verify that the token has read:org permissions and the team exists.');
+              core.setFailed(`Failed to fetch release-team members: ${error.message}`);
+              return;
+            }
+
+            // Process reviews to find the latest state for each reviewer
+            const reviewerStates = {};
+            for (const review of reviews) {
+              if (review.state === 'APPROVED' || review.state === 'CHANGES_REQUESTED') {
+                reviewerStates[review.user.login] = review.state;
+              } else if (review.state === 'DISMISSED') {
+                delete reviewerStates[review.user.login];
+              }
+            }
+
+            // Check for approval from a release-team member and no outstanding change requests
+            const states = Object.entries(reviewerStates);
+            const hasTeamApproval = states.some(([user, state]) => state === 'APPROVED' && teamMembers.includes(user));
+            const hasChangesRequested = states.some(([, state]) => state === 'CHANGES_REQUESTED');
+
+            if (!hasTeamApproval) {
+              core.setFailed('Skipping: PR is not approved by a member of the release-team.');
+            } else if (hasChangesRequested) {
+              core.setFailed('Skipping: PR has changes requested.');
+            } else {
+              console.log('PR approval check passed.');
+            }
+
+      # Execute the merge if all checks pass
+      - name: Merge PR
+        if: steps.verify-branches.outputs.should_skip != 'true'
+        uses: actions/github-script@v7
+        env:
+          BASE_REF: ${{ steps.get-pr.outputs.base }}
+          HEAD_REF: ${{ steps.get-pr.outputs.head }}
+        with:
+          github-token: ${{ secrets.github-token }}
+          script: |
+            try {
+              // Perform the merge using the 'merge' method (creates a merge commit, does not squash)
+              await github.rest.pulls.merge({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                pull_number: ${{ inputs.pr-number }},
+                merge_method: 'merge'
+              });
+              console.log(`PR merged successfully: Source '${process.env.HEAD_REF}' -> Target '${process.env.BASE_REF}'.`);
+            } catch (error) {
+              core.setFailed(`Merge failed: ${error.message}`);
+            }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f16c1d94..88ec4eab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.1.0]
+
+### Added
+
+- Add merging GitHub action ([#172](https://github.com/MetaMask/github-tools/pull/172))
+
+### Changed
+
+- Bump `@metamask/auto-changelog` from `^5.1.0` to `^5.2.0` ([#175](https://github.com/MetaMask/github-tools/pull/175))
+  - Adds deduplication for commits with no PR number in subject (non-"Squash & Merge" commits)
+  - Merge commits are now deduplicated using commit body instead of the generic merge subject
+
 ## [1.0.0]
 
 ### Added
@@ -23,5 +35,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Some inputs were renamed for consistency across actions.
 - Bump `actions/checkout` and `actions/setup-node` to `v6` ([#173](https://github.com/MetaMask/github-tools/pull/173))
 
-[Unreleased]: https://github.com/MetaMask/github-tools/compare/v1.0.0...HEAD
+[Unreleased]: https://github.com/MetaMask/github-tools/compare/v1.1.0...HEAD
+[1.1.0]: https://github.com/MetaMask/github-tools/compare/v1.0.0...v1.1.0
 [1.0.0]: https://github.com/MetaMask/github-tools/releases/tag/v1.0.0
diff --git a/package.json b/package.json
index e0440082..23a45966 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@metamask/github-tools",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "private": true,
   "description": "Tools for interacting with the GitHub API to do metrics gathering",
   "repository": {
@@ -26,7 +26,7 @@
     "update-release-sheet": "node .github/scripts/update-release-sheet.mjs"
   },
   "dependencies": {
-    "@metamask/auto-changelog": "^5.1.0",
+    "@metamask/auto-changelog": "^5.2.0",
     "@metamask/utils": "^7.1.0",
     "@octokit/graphql": "^7.0.1",
     "@octokit/request": "^8.1.1",
diff --git a/yarn.lock b/yarn.lock
index e2ff0012..1d0a9ce5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -941,9 +941,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@metamask/auto-changelog@npm:^5.1.0":
-  version: 5.1.0
-  resolution: "@metamask/auto-changelog@npm:5.1.0"
+"@metamask/auto-changelog@npm:^5.2.0":
+  version: 5.2.0
+  resolution: "@metamask/auto-changelog@npm:5.2.0"
   dependencies:
     "@octokit/rest": "npm:^20.0.0"
     diff: "npm:^5.0.0"
@@ -954,7 +954,7 @@ __metadata:
     prettier: ">=3.0.0"
   bin:
     auto-changelog: dist/cli.mjs
-  checksum: 10/ee9f651c313a2377a21a304383f56f1872b4ce6411a0b61cf0b70b23bff9d3204332cd5a052cdfcaf363ce15424a7a1fdbde99a6b4352f2472fbe6b6d27c5791
+  checksum: 10/86ca4f56a0c86a1fabbe4b7b66a28bda39e59c51c996aadedeb5f341b3e93acfd7ca5dafebbd82852070f12324bbd83fc7cb979cb9f8b9ca8f5dded53f1fa5af
   languageName: node
   linkType: hard
 
@@ -1014,7 +1014,7 @@ __metadata:
   dependencies:
     "@lavamoat/allow-scripts": "npm:^2.3.1"
     "@lavamoat/preinstall-always-fail": "npm:^1.0.0"
-    "@metamask/auto-changelog": "npm:^5.1.0"
+    "@metamask/auto-changelog": "npm:^5.2.0"
     "@metamask/eslint-config": "npm:^12.0.0"
     "@metamask/eslint-config-jest": "npm:^12.0.0"
     "@metamask/eslint-config-nodejs": "npm:^12.0.0"