GitHub (PRs & branches)

GitHub streamlines collaborative development through a branch-based workflow and Pull Requests (PRs) for integrated code review and automated testing.

GitHub manages the lifecycle of a feature from local commit to production deployment. Developers isolate work in feature branches (git checkout -b) to prevent main-line instability. The Pull Request serves as the central hub for peer review, where team members leave line-specific comments, suggest edits, and trigger CI/CD pipelines. With built-in protected branches and status checks, teams ensure that 100% of code meets quality standards before the final merge. It is the industry standard for version control, supporting over 100 million developers in maintaining high-velocity release cycles.

https://github.com/features/code-review