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For more context and historical notes on choosing this service, see Automated JavaScript Dependency Updates.
Automerging and Required Reviews
If your repository requires PRs to have an approving review before merge, and you wish to use Renovate’s automerge features, you can use Renovate Approve to accomplish this: https://github.com/apps/renovate-approve
Renovate can’t approve its own PRs, and so will otherwise be unable to merge them. Renovate Approve automatically approves any PRs that Renovate generates, allowing automerges to be processed normally.