Staying Evergreen: How we automated secure access and repo hygiene in a shared org
Put native GitHub features to work to review outside collaborator access and archive stale repositories. The post Staying Evergreen: How we automate…
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From 2,500 requests to 24: Rebuilding star history without the stargazers
Our new repo star history API now provides trends without returning individual identities or requiring unbounded database work. These are the engine…
Building Git infrastructure for agent-scale development
We're rebuilding GitHub's Git infrastructure while GitHub keeps running, creating a foundation for agent-scale software development. The post Buildi…
Improving site performance by shipping more CSS
A look at how a design system shipped major changes without breaking the world. The post Improving site performance by shipping more CSS appeared fi…
Rendering huge pull requests in the GitHub Copilot app
How we rebuilt the diff surface in the GitHub Copilot app to open a million-line pull request with hundreds of inline review comments. The post Rend…
How we make AI coding more cost efficient without sacrificing task quality
Why shorter outputs can cost more, and how GitHub Copilot reduces wasted work across the complete coding task. The post How we make AI coding more c…
Your alt text passes automated checks. That doesn’t mean it’s any good.
We built a plugin for the GitHub Accessibility Scanner to make sure your alt text is actually accessible. Here's how it works. The post Your alt tex…
Using the GitHub Copilot SDK for Java
Enterprise Java developers have a new superpower—drive GitHub Copilot from idiomatic Java code with annotations, virtual threads, and more. The post…
Turn one giant AI-generated pull request to a reviewable stack
Instead of one huge, un-reviewable pull request, teach coding agents to decompose work into a clean, ordered stack with GitHub stacked pull requests…
Don’t stop early: Case-folding source code at memory speed
How a branch-free loop and byte-space arithmetic let GitHub case-fold every byte of code search at 45 GiB/s on a single core. The post Don’t s…
Tame Dependabot: Group your updates, slow the cadence, keep security fast
Dependabot keeps your dependencies current, but its defaults can flood your repository with pull requests. Here's how grouping updates, slowing the…
The cost of saying yes has changed
The cost of writing code dropped; the cost of owning it didn't. A framework for deciding which changes are actually cheap in the AI era. The post Th…
Better tools made Copilot code review worse. Here’s how we actually improved it.
How migrating Copilot code review to shared Unix-style code exploration tools reduced review cost by reshaping agent workflows around pull request e…
Automating cross-repo documentation with GitHub Agentic Workflows
Explore how the Aspire team turns merged product changes into SME-reviewed docs pull requests, closing the gap between release and documentation. Th…
From latency to instant: Modernizing GitHub Issues navigation performance
How the GitHub Issues team used client-side caching, smart prefetching, and service workers to make navigation feel instant. The post From latency t…
How GitHub uses eBPF to improve deployment safety
Learn how Github uses eBPF to detect and prevent circular dependencies in its deployment tooling. The post How GitHub uses eBPF to improve deploymen…