Brian Celenza
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.
8 min read
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GitHub Engineering
Company engineering blog
Updates, ideas, and inspiration from GitHub to help developers build and design software.
10 posts in the last 90 days · newest 6 Oct
Josh Black
Improving site performance by shipping more CSS
How we fully migrated github.com away from CSS-in-JS.
7 min read
Alberto Gimeno
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.
13 min read
Erik Kristensen
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.
8 min read
Taarik Ashenafi
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.
9 min read
Edward Burns
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.
8 min read
Julia Muiruri
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.
9 min read
Alexander Neubeck
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.
17 min read
Bruno Borges
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 cadence, and keeping security fixes fast cut the noise on a Microsoft open source project.
8 min read
Dalia Abuadas
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.
5 min read