PRs

PRs are the standard protocol for reviewing, discussing, and merging code changes within Git-based version control systems.

GitHub pioneered the Pull Request in 2008: it transformed software development by centralizing code review. A developer initiates a PR to propose changes from a head branch to a base branch (usually main). This action triggers automated workflows: CI/CD pipelines run unit tests while peers provide line-by-line feedback. Industry leaders like Google and Meta use similar "Change Request" patterns to maintain stability across massive codebases. Every PR serves as a permanent audit trail for the project's evolution.

https://docs.github.com/en/pull-requests