GitHub Engineering

GitHub Engineering + 1 source (GitHub Engineering and Lobsters) · October 21, 2026 16:00

The bridge to agent-scale Git infrastructure

We moved a copy of 99.99999% of GitHub's repositories to Azure. Here's how per-reference quorums will bring over the rest.

Topics: Infrastructure

Entities: Infrastructure

GitHub Engineering · October 15, 2026 18:00

Staying Evergreen: How we automated secure access and repo hygiene in a shared org

Automate outside collaborator access reviews and stale-repository archival in your shared GitHub organization with native platform features.

GitHub Engineering · October 14, 2026 19:11

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.

Topics: Databases

Entities: Databases

GitHub Engineering · October 06, 2026 20:57

Building Git infrastructure for agent-scale development

Writes are accelerating, and this growth can add stress to systems all repos depend on. Here's our approach to building architecture that can scale.

Topics: Infrastructure

Entities: Infrastructure

GitHub Engineering · September 25, 2026 15:00

Improving site performance by shipping more CSS

How we fully migrated github.com away from CSS-in-JS.

GitHub Engineering · September 23, 2026 18:29

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.

Entities: GitHub Copilot

GitHub Engineering · September 02, 2026 18:00

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.

Topics: Programming

Entities: ProgrammingGitHub Copilot

GitHub Engineering · August 24, 2026 20:56

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.

GitHub Engineering · August 10, 2026 19:30

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.

Entities: GitHub Copilot

GitHub Engineering · August 04, 2026 16:47

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.

Topics: Programming

Entities: Programming

GitHub Engineering · July 31, 2026 16:00

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.

GitHub Engineering · July 29, 2026 16:00

Tame Dependabot: Group your updates, slow the cadence, keep security fast

Here's how grouping updates, slowing the cadence, and keeping security fixes fast cut the noise on a Microsoft open source project.

Topics: Security

Entities: Microsoft