Cancel previous jobs in GitHub actions
Prevent resource waste by automatically cancelling outdated workflow runs when new commits are pushed.
concurrency:
group: ${{ github.ref }}
cancel-in-progress: true
How it works
group- Groups workflows by git reference (branch/tag)cancel-in-progress: true- Cancels running jobs in the same group when a new one starts
More specific grouping
For workflows that should only cancel within the same workflow:
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: true
Use cases
- Feature branch CI runs when pushing multiple commits
- Deployment workflows that shouldn’t run in parallel
- Resource-intensive test suites