How stacked pull requests break down large code changes

GitHub introduces stacked pull requests (public preview) as a way to break large code changes into an ordered chain of smaller, focused pull requests.

Overview

• Problem addressed: A single large PR can be slow and difficult to review.
• Approach: Split the work into an ordered stack (a chain of PR “layers”).
• Review experience:
  • Reviewers can review each layer independently.
  • A stack map shows how each layer fits into the overall change.
• Where you can use it:
  • On github.com
  • Via the GitHub CLI
  • In the GitHub mobile app
  • With GitHub Copilot using the gh-stack skill

Links

• Stacked pull requests changelog entry: https://github.blog/changelog/2026-07-30-stacked-pull-requests-are-now-in-public-preview/