diff --git a/.github-new/workflows/pull-v4-into-v4-next.yml b/.github-new/workflows/pull-v4-into-v4-next.yml
new file mode 100644
index 000000000000..efa6bdefb2b6
--- /dev/null
+++ b/.github-new/workflows/pull-v4-into-v4-next.yml
@@ -0,0 +1,110 @@
+name: Pull v4 into v4-next
+
+on:
+  schedule:
+    # Run every 15 minutes to catch v4 merges promptly
+    - cron: '*/15 * * * *'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  pull-v4-into-v4-next:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout v4-next
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+        with:
+          ref: v4-next
+          fetch-depth: 0
+          token: ${{ secrets.AZTEC_BOT_GITHUB_TOKEN }}
+
+      - name: Configure Git
+        run: |
+          git config user.name "AztecBot"
+          git config user.email "tech@aztecprotocol.com"
+
+      - name: Check if v4 is ahead of v4-next
+        id: check
+        run: |
+          git fetch origin v4
+          AHEAD=$(git rev-list --count v4-next..origin/v4)
+          echo "ahead=$AHEAD"
+          if [ "$AHEAD" -eq 0 ]; then
+            echo "v4-next is already up to date with v4."
+            echo "needs_merge=false" >> $GITHUB_OUTPUT
+          else
+            echo "v4 is $AHEAD commit(s) ahead of v4-next."
+            echo "needs_merge=true" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Attempt to merge v4 into v4-next
+        if: steps.check.outputs.needs_merge == 'true'
+        id: merge
+        run: |
+          if git merge origin/v4 --no-edit; then
+            echo "conflict=false" >> $GITHUB_OUTPUT
+            echo "Merge succeeded without conflicts."
+          else
+            git merge --abort
+            echo "conflict=true" >> $GITHUB_OUTPUT
+            echo "Merge has conflicts."
+          fi
+
+      - name: Push merged v4-next
+        if: steps.check.outputs.needs_merge == 'true' && steps.merge.outputs.conflict == 'false'
+        run: git push origin v4-next
+
+      - name: Create conflict-resolution PR
+        if: steps.check.outputs.needs_merge == 'true' && steps.merge.outputs.conflict == 'true'
+        id: conflict-pr
+        env:
+          GH_TOKEN: ${{ secrets.AZTEC_BOT_GITHUB_TOKEN }}
+        run: |
+          SYNC_BRANCH="sync/v4-into-v4-next-$(date -u +%Y%m%d-%H%M%S)"
+          git merge --abort 2>/dev/null || true
+          git checkout -b "$SYNC_BRANCH"
+
+          # Merge with conflicts left in place
+          git merge origin/v4 --no-commit --no-ff || true
+          git add -A
+          git commit -m "chore: merge v4 into v4-next (conflicts need resolution)" || true
+          git push origin "$SYNC_BRANCH"
+
+          # Check if there's already an open sync PR by branch naming convention
+          EXISTING_PR=$(gh pr list --base v4-next --state open --json number,headRefName --jq '[.[] | select(.headRefName | startswith("sync/v4-into-v4-next-"))][0].number // empty')
+
+          if [ -n "$EXISTING_PR" ]; then
+            gh pr comment "$EXISTING_PR" --body "New v4 changes pushed. A fresh sync branch \`$SYNC_BRANCH\` has been created. Please resolve conflicts there or close this PR and use the new branch."
+            echo "pr_url=$(gh pr view "$EXISTING_PR" --json url --jq '.url')" >> $GITHUB_OUTPUT
+          else
+            PR_URL=$(gh pr create \
+              --base v4-next \
+              --head "$SYNC_BRANCH" \
+              --title "chore: merge v4 into v4-next (resolve conflicts)" \
+              --body "$(cat <<'EOF'
+## Automatic v4 → v4-next sync
+
+This PR was created because merging `v4` into `v4-next` resulted in conflicts.
+
+Please resolve the conflicts and merge this PR to keep `v4-next` up to date.
+
+This PR was auto-generated by the `pull-v4-into-v4-next` workflow.
+EOF
+              )")
+            echo "pr_url=$PR_URL" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Notify Slack
+        if: steps.check.outputs.needs_merge == 'true' && steps.merge.outputs.conflict == 'true'
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
+        run: |
+          PR_URL="${{ steps.conflict-pr.outputs.pr_url }}"
+          TEXT=$(printf '⚠️ Auto-merge v4 → v4-next failed due to conflicts. <%s|View PR>. @Claudebox' "$PR_URL")
+          curl -sS -X POST https://slack.com/api/chat.postMessage \
+            -H "Authorization: Bearer $SLACK_BOT_TOKEN" \
+            -H "Content-type: application/json" \
+            -d "$(jq -n --arg c "#backports" --arg t "$TEXT" '{channel:$c, text:$t}')"