How we found 24 Android vulnerabilities using our open source AI security agent
A look at the targeted AI taskflows behind these findings, the critical Android bugs they uncovered, and how to run the same open-source agent on your own app.
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Highlights from Git 2.56
The open source Git project just released Git 2.56. Here is GitHub’s look at some of the most interesting features and changes introduced since last time.
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GitHub Copilot app for Beginners: How to build custom workflows with canvases
Describe the interface you need in plain English, then let the agent build a live surface you can both use and update—so you spend less time adapting to tools and more time getting work done.
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Improving site performance by shipping more CSS
How we fully migrated github.com away from CSS-in-JS.
Latest
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When chat is the wrong UI
What is a developer to do when they need something more tangible than a chat box? Enter canvases.
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AI-powered fuzzing with the GitHub Security Lab Taskflow Agent
In this blog post, I explain how to use the new fuzzing taskflow based on the GitHub Security Lab Taskflow Agent AI framework.
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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.
Popular
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Improving site performance by shipping more CSS
How we fully migrated github.com away from CSS-in-JS.
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Migrating the GitHub Copilot runtime to Rust, using Copilot
A rewrite this size wasn’t affordable before agents. Here’s what porting the Copilot agent runtime to 800,000 lines of production Rust actually took.
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Highlights from Git 2.56
The open source Git project just released Git 2.56. Here is GitHub’s look at some of the most interesting features and changes introduced since last time.
Engineering
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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.
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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.
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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.
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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.
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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.
Spotlight
Octoverse 2025: AI, India, and the new #1 programming language
Dive into the key findings from Octoverse 2025! This year saw record-breaking growth with over 180 million developers now on GitHub. We explore three big shifts: generative AI becoming ordinary engineering, TypeScript’s rise to the #1 language, and how AI is influencing developer choices. See how the developer map is redrawing itself faster than ever.
The untold story of Log4j and Log4Shell
In late 2021, the Log4Shell vulnerability sent shockwaves through the global tech community. Hear the untold, inside story from Christian Grobmeier, a maintainer of the Log4j project.
Two decades of Git: A conversation with creator Linus Torvalds
Twenty years ago, Linus Torvalds created the basis for Git in just 10 days, forever changing how developers collaborate on code. In this interview, Linus Torvalds discusses Git’s unexpected journey.
News & insights
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Developers want more efficient software. Here’s what over 1,000 GitHub users told us they need.
New research from GitHub and Yale Program on Climate Change Communication finds strong demand for tools, measurement, and practical guidance that can help developers reduce wasted compute.
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GitHub availability report: August 2026
In August, we experienced five incidents that resulted in degraded performance across GitHub services.
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The August 17 outage, and the work ahead
An update on the August 17 outage and the steps we’re taking to improve reliability.
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Your guide to GitHub Universe 2026 is here: The schedule just launched!
The GitHub Universe session catalog is live. Explore interactive workshops, community talks, demos, and panels. Plus, register before August 19 to save $300.
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GitHub availability report: July 2026
In July, we experienced eight incidents that resulted in degraded performance across GitHub services.
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GitHub availability report: June 2026
In June, we experienced six incidents that resulted in degraded performance across GitHub services.
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GitHub Universe 2026
Join us October 28-29 in San Francisco or online for GitHub Universe, our flagship developer event uniting people, agents, and the world’s code.