# Pushing changes into the Angular tree Please see [Using git with Angular repositories](https://docs.google.com/document/d/1h8nijFSaa1jG_UE8v4WP7glh5qOUXnYtAtJh_gwOQHI/edit) for details about how we maintain a linear commit history and the rules for committing. As a contributor, see the instructions in [CONTRIBUTING.md](../CONTRIBUTING.md). # Change approvals Change approvals in our monorepo are managed via [PullApprove](https://docs.pullapprove.com/) and are configured via the [`.pullapprove.yml`](../.pullapprove.yml) file. # Merging Once a change has all of the required approvals, either the last approver or the PR author (if PR author has the project collaborator status) should mark the PR with the `action: merge` label and the correct [target label](https://github.com/angular/angular/blob/master/docs/TRIAGE_AND_LABELS.md#pr-target). This signals to the caretaker that the PR should be merged. See [merge instructions](CARETAKER.md). # Who is the Caretaker? See [this explanation](https://twitter.com/IgorMinar/status/799365744806854656).