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Git Version Control Tutorial• 6 min read

Pull Requests, Code Review & GitHub Flow

Forking, feature branching, draft PRs, and branch protection rules

Pull Requests (PRs) are the collaborative heart of modern software teams, providing a formal interface for peer code review, continuous integration (CI) tests, and team alignment before code merges to production.

The GitHub Flow Lifecycle

1Create a branch from main with a descriptive name (feature/user-profiles).
2Push commits and open a Pull Request explaining the architectural context and testing evidence.
3Automated CI runs linting, unit tests, and security scans on the PR branch.
4Peers conduct code review, leaving inline comments and approving changes.
5Merge the PR and delete the feature branch.
Pro Tip

Branch Protection Rules on GitHub prevent developers from pushing directly to main, requiring at least 1-2 approved peer reviews and passing CI checks before merging.

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Test Yourself With Exercise

+15 XP

What is the primary function of a GitHub Branch Protection Rule on the `main` branch?