diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 000000000..659788c2d
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,19 @@
+name: Check merge requirements
+
+on:
+  pull_request:
+
+jobs:
+
+  check-release-version:
+    timeout-minutes: 5
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@v3
+
+      run: |
+        SUFFIX=$(sed -E 's/postgres-version = "[0-9\.]+(.*)"/\1/g' common.vars.pkr.hcl)
+        if [[ -n $SUFFIX ]] ; then
+          echo "We no longer allow merging RC versions to develop."
+          exit 1
+        fi