diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index e58bd32..8e07e54 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -1 +1,13 @@
+# Default all repository changes to the CLI team.
 * @supabase/cli
+
+# Files that Dependabot updates. Either owner satisfies code-owner review; `supabase-oss`
+# approves only Dependabot PRs, through dependabot.yml.
+/.github/workflows/*.yml @supabase/cli @supabase-oss
+/action.yml @supabase/cli @supabase-oss
+/package.json @supabase/cli @supabase-oss
+/bun.lock @supabase/cli @supabase-oss
+
+# Dependabot PRs touching this workflow still need a maintainer: it runs with secrets.
+# Last matching pattern wins.
+/.github/workflows/dependabot.yml @supabase/cli
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 40fb228..959db5a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,6 +8,7 @@ on:
       - reopened
       - ready_for_review
       - converted_to_draft
+  merge_group:
   push:
     branches:
       - main
@@ -85,7 +86,7 @@ jobs:
           supabase -h
 
   ci:
-    if: ${{ always() && github.event_name == 'pull_request' }}
+    if: ${{ always() && (github.event_name == 'pull_request' || github.event_name == 'merge_group') }}
     name: CI
     runs-on: ubuntu-latest
     needs: [validate, test, github-release-fallback]
diff --git a/.github/workflows/dependabot.yml b/.github/workflows/dependabot.yml
index c5e213c..9032b3f 100644
--- a/.github/workflows/dependabot.yml
+++ b/.github/workflows/dependabot.yml
@@ -1,29 +1,67 @@
 # Adapted from https://docs.github.com/en/code-security/dependabot/working-with-dependabot/automating-dependabot-with-github-actions#enable-auto-merge-on-a-pull-request
 name: Dependabot auto-merge
 
-on: pull_request
+on:
+  # Dependabot-triggered pull_request runs get no Actions or environment secrets. Only this
+  # event lets the job use the auto-approve environment's secret. The job never checks out or
+  # runs code from the pull request.
+  # jactionlint ignore=dangerous-triggers
+  pull_request_target:
+    types: [opened, reopened, synchronize, ready_for_review]
+    branches: [main]
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
   cancel-in-progress: true
 
-permissions:
-  pull-requests: write
-  contents: write
+permissions: {}
 
 jobs:
   dependabot:
+    name: Approve and enable auto-merge
     runs-on: ubuntu-latest
     timeout-minutes: 10
-    # Only act on PRs opened by Dependabot from branches in this repository.
-    if: github.actor == 'dependabot[bot]' && github.repository == github.event.pull_request.head.repo.full_name
+    # The first condition checks who opened the pull request. The second checks who caused this
+    # event, so a person pushing to a Dependabot pull request does not get it approved. Only
+    # branches in this repository qualify.
+    # jactionlint ignore=bot-conditions
+    if: >-
+      github.event.pull_request.user.login == 'dependabot[bot]' &&
+      github.event.sender.login == 'dependabot[bot]' &&
+      github.event.pull_request.head.repo.full_name == github.repository &&
+      !github.event.pull_request.draft
+    # Holds `AUTO_APPROVE_PR_PAT`; the environment only deploys from the default branch.
+    environment: auto-approve
+    # The built-in token only reads; the PAT approves and the app token enables auto-merge.
+    permissions:
+      pull-requests: read
+      contents: read
     steps:
+      # pull_request_target is safe here because this job never checks out PR code.
       # Metadata drives the non-major gating used for approval and auto-merge.
       - id: meta
         uses: dependabot/fetch-metadata@25dd0e34f4fe68f24cc83900b1fe3fe149efef98 # v3.1.0
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
 
+      # The org ruleset requires a code-owner review, which an app approval cannot satisfy.
+      # `supabase-oss` is a co-owner of the files Dependabot updates (see CODEOWNERS). A rewritten
+      # PR keeps its approval; skipping it avoids stacking a review per push.
+      - name: Approve a PR
+        if: ${{ steps.meta.outputs.update-type == null || steps.meta.outputs.update-type == 'version-update:semver-patch' || steps.meta.outputs.update-type == 'version-update:semver-minor' }}
+        run: |
+          set -euo pipefail
+          decision="$(GH_TOKEN="$READ_TOKEN" gh pr view --repo "$GITHUB_REPOSITORY" "$PR_NUMBER" --json reviewDecision --jq .reviewDecision)"
+          if [ "$decision" != "APPROVED" ]; then
+            gh pr review --approve --repo "$GITHUB_REPOSITORY" "$PR_NUMBER"
+          fi
+        env:
+          GH_TOKEN: ${{ secrets.AUTO_APPROVE_PR_PAT }}
+          READ_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+
+      # The built-in GITHUB_TOKEN cannot add pull requests to a merge queue, and the merge group
+      # it would create would not trigger the required checks.
       - name: Generate token
         id: app-token
         if: ${{ steps.meta.outputs.update-type == null || steps.meta.outputs.update-type == 'version-update:semver-patch' || steps.meta.outputs.update-type == 'version-update:semver-minor' }}
@@ -31,17 +69,12 @@ jobs:
         with:
           app-id: ${{ secrets.APP_ID }}
           private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}
-
-      - name: Approve a PR
-        if: ${{ steps.meta.outputs.update-type == null || steps.meta.outputs.update-type == 'version-update:semver-patch' || steps.meta.outputs.update-type == 'version-update:semver-minor' }}
-        run: gh pr review --approve "$PR_URL"
-        env:
-          PR_URL: ${{ github.event.pull_request.html_url }}
-          GITHUB_TOKEN: ${{ steps.app-token.outputs.token }}
+          permission-contents: write
+          permission-pull-requests: write
 
       - name: Enable auto-merge for Dependabot PRs
         if: ${{ steps.meta.outputs.update-type == null || steps.meta.outputs.update-type == 'version-update:semver-patch' || steps.meta.outputs.update-type == 'version-update:semver-minor' }}
-        run: gh pr merge --auto --squash "$PR_URL"
+        run: gh pr merge --auto --squash --repo "$GITHUB_REPOSITORY" "$PR_NUMBER"
         env:
-          PR_URL: ${{ github.event.pull_request.html_url }}
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_TOKEN: ${{ steps.app-token.outputs.token }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index aa5cec0..aa4c946 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -7,6 +7,7 @@ on:
       - reopened
       - ready_for_review
       - converted_to_draft
+  merge_group:
   push:
     branches:
       - main
@@ -69,7 +70,7 @@ jobs:
       - run: supabase start
 
   e2e-check:
-    if: ${{ always() && github.event_name == 'pull_request' }}
+    if: ${{ always() && (github.event_name == 'pull_request' || github.event_name == 'merge_group') }}
     name: E2E
     runs-on: ubuntu-latest
     needs: [e2e]
diff --git a/.github/workflows/licensed.yml b/.github/workflows/licensed.yml
index 423de7a..688a4cd 100644
--- a/.github/workflows/licensed.yml
+++ b/.github/workflows/licensed.yml
@@ -6,6 +6,7 @@ name: Licensed
 
 on:
   pull_request:
+  merge_group:
   push:
     branches:
       - main
@@ -38,15 +39,26 @@ jobs:
         id: license-inputs
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          EVENT_NAME: ${{ github.event_name }}
           PR_NUMBER: ${{ github.event.pull_request.number }}
+          MERGE_BASE_SHA: ${{ github.event.merge_group.base_sha }}
+          MERGE_HEAD_SHA: ${{ github.event.merge_group.head_sha }}
           REPOSITORY: ${{ github.repository }}
         run: |
-          if [[ "${{ github.event_name }}" != "pull_request" ]]; then
+          if [[ "$EVENT_NAME" == "pull_request" ]]; then
+            gh api "repos/${REPOSITORY}/pulls/${PR_NUMBER}/files" --paginate --jq '.[].filename' > changed-files.txt
+          elif [[ "$EVENT_NAME" == "merge_group" ]]; then
+            gh api "repos/${REPOSITORY}/compare/${MERGE_BASE_SHA}...${MERGE_HEAD_SHA}" --jq '.files[].filename' > changed-files.txt
+            # The compare API lists at most 300 files; check everything when the list may be cut off.
+            if (( $(wc -l < changed-files.txt) >= 300 )); then
+              echo "changed=true" >> "$GITHUB_OUTPUT"
+              exit 0
+            fi
+          else
             echo "changed=true" >> "$GITHUB_OUTPUT"
             exit 0
           fi
 
-          gh api "repos/${REPOSITORY}/pulls/${PR_NUMBER}/files" --paginate --jq '.[].filename' > changed-files.txt
           if grep -Eq '^(\.github/workflows/licensed\.yml|\.licensed\.yml|\.licenses/.*|bun\.lock|package\.json)$' changed-files.txt; then
             echo "changed=true" >> "$GITHUB_OUTPUT"
           else