GITHUB LAUNCHES STACKED PRS FOR DEPENDENT CODE REVIEWS

GitHub's new Stacked PRs feature allows developers to organize related pull requests in a dependency chain, eliminating the need to wait for one PR to merge before opening the next. This workflow improvement targets teams handling large refactors, multi-part features, or complex changes spanning multiple files. The stacking mechanism works by establishing explicit parent-child relationships between PRs. When a parent PR receives updates, dependent child PRs automatically reflect those changes, keeping the entire stack synchronized. Reviewers can examine individual PRs within the stack while maintaining visibility of the broader change context. Key functionality includes: - Automatic branch management for dependent PRs - Clear visualization of PR relationships and order - Integrated diff views showing changes across the stack - Merge workflows that respect stack dependencies This approach mirrors workflows popularized by tools like Stacked Git and development practices common in large codebases like Google's monorepo. GitHub's implementation brings similar capabilities directly into its platform, reducing friction for developers currently using external tools or workarounds. The feature addresses efficiency concerns in code review cycles. Rather than blocking progress on dependent work, developers can open PRs in logical sequence, allowing reviewers to assess smaller, focused changes incrementally. This granular approach often improves review quality and reduces cognitive load on reviewers. GitHub positioned Stacked PRs as part of its broader platform expansion, following recent additions like AI-powered code suggestions and enhanced collaboration tools. The feature is available to GitHub users and integrates with existing review, discussion, and merge workflows. On Hacker News, the announcement generated 166 points and 76 comments, with discussion centering on implementation details, integration with CI/CD pipelines, and comparisons to existing stacking solutions in other version control systems.