diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 000000000..49747f2ef
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,58 @@
+name: Release
+
+on:
+  workflow_dispatch:
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write # Enables tag push to OneLife
+    env:
+      tag_prefix: 2HOL_v
+    steps:
+      - name: Authentication for other repositories
+        uses: actions/create-github-app-token@v1
+        id: app-token
+        with:
+          app-id: ${{ vars.GHA_AUTH_APP_ID }}
+          private-key: ${{ secrets.GHA_AUTH_PRIVATE_KEY }}
+          repositories: OneLifeData7 # Enables commit and tag push to OneLifeData7
+
+      - name: Checkout OneLife
+        uses: actions/checkout@v4
+        with:
+          repository: twohoursonelife/OneLife
+          path: OneLife
+          fetch-tags: true
+
+      - name: Checkout OneLifeData7
+        uses: actions/checkout@v4
+        with:
+          repository: twohoursonelife/OneLifeData7
+          path: OneLifeData7
+          fetch-tags: true
+          token: ${{ steps.app-token.outputs.token }}
+
+      - name: Calculate next version
+        run: |
+          cd OneLifeData7
+          old_version=$(git describe --tags --abbrev=0 --match="2HOL_v[0-9]*")
+          echo "new_version=$($oldVersion + 1)" >> $GITHUB_ENV
+          echo -n "$new_version" > dataVersionNumber.txt
+
+      - name: Commit and tag version bump - OneLifeData7 #TODO does this order work?
+        uses: EndBug/add-and-commit@v9
+        with:
+          cwd: OneLifeData7/
+          default_author: github_actions
+          message: Updatated dataVersionNumber to $new_version
+          tag: $tag_prefix$new_version -m "Tag automatically generated by update script."
+          new_branch: test-release
+
+      - name: Tag version bump - OneLife
+        uses: EndBug/add-and-commit@v9
+        with:
+          cwd: OneLife/
+          default_author: github_actions
+          tag: $tag_prefix$new_version -m "Tag automatically generated by update script."