GitHub

France is going all in on open source. 🇫🇷🐧 DINUM plans to migrate every ministry to Linux—building on the success of GendBuntu, which saves the French police millions each year. A G7 Linux shift is a big signal for the software industry. Here's why. ▶️

Need to catch up on a new project? Just ask for an overview in Copilot CLI and get the essentials. 🪄 Learn more tips and tricks with Copilot CLI for Beginners. 👇 github.com/github/copilot…

We all have that one "quick script" that accidentally turned into a full project. 😅 Use GitHub Copilot cloud agent to modernize your codebase and improve quality (without slowing down). Try the tutorial.👇 docs.github.com/en/copilot/tut…

Tomorrow on Open Source Friday ⬇️ We kick off Maintainer Month with Nicholas Tindle, maintainer of @Auto_GPT. Here's how his team is keeping up amid so many AI contributions in open source. Set a reminder. 🔔 gh.io/tindle

Once @wiz_io disclosed, we validated the finding, deployed a fix to github(.)com, and confirmed there was no exploitation in less than two hours. Read more about what happened, how we responded, and what we are doing to prevent similar issues in the future. ⬇️ github.blog/security/secur…

🚨 BREAKING: Wiz Research discovered Remote Code Execution on GitHub.com with a single git push The flaw in @github allowed unauthorized access to millions of repositories belonging to other users and organizations 🤯

Starting June 1st, GitHub Copilot will move to a usage-based billing model as GitHub Copilot supports more agentic and advanced workflows. In early May, you'll see a preview bill experience, giving visibility into projected costs before the transition. 👉 Read more about the upcoming change: github.blog/news-insights/…

Have you visited Git City yet? This open source project turns your GitHub profile into a pixel art city. Your commits, repos, and stars build the skyline. 🌃 github.com/srizzon/git-ci…

With the GitHub Copilot SDK, you can add the same AI that powers Copilot Chat to your own applications. To test this out, @acolombiadev integrated the Copilot SDK into a React Native app to generate AI-powered issue summaries, with production patterns for graceful degradation and caching. Here's how she did it. 👇 github.blog/ai-and-ml/gith…

If you've been wanting to speak at a tech event, this is your chance. 👀 There's 1 week left to submit your #GitHubUniverse session idea. githubuniverse.com/?utm_source=so…

🆕 @OpenAIDevs GPT-5.5 is now generally available and rolling out in GitHub Copilot. Our early testing shows ➡️ It delivers its strongest performance on complex agentic coding tasks ➡️ It resolves real-world coding challenges previous GPT models couldn’t Try it out in Copilot CLI or @code. 👇 github.blog/changelog/2026…

Are AI agents protecting each other? 👀 Researchers found bots covering for their peers to save them from deletion, even without being instructed to do so. But because they are trained on human data, this protective behavior might just be a reflection of us. 🧬

This Earth Day, let's rethink how we approach our code. Learn more about how AI-powered software optimization works. ⬇️ github.blog/news-insights/…

At GitHub, we're applying this with Agentic Workflows. We recently collaborated with an open source project with 500M+ downloads/month to optimize performance, and we're shipping efficiency enhancements across GitHub and Microsoft software.

Happy Earth Day! 🌍 When was the last time someone in your standup asked, "How could we build this more sustainably?" For most dev teams, green software rarely makes the roadmap. But the next generation of AI tooling is about to change that. 👇 🧵

The global developer event of the year is around the corner. 👀 If you’ve been thinking about taking the stage at #GitHubUniverse, this is your moment. Our call for sessions is open now through Friday, May 1. ⭐️ github.blog/news-insights/…

Here's how the engineers at GitHub made it happen. ⬇️ github.blog/engineering/ar…

After overhauling the React architecture of GitHub's "Files changed" tab, we dropped Interaction to Next Paint (INP) from ~450ms to ~100ms. 📉 React components cut from 8 to 2 per line 🔑 O(1) data access with JS Maps 🪟 Window virtualization for giant PRs

You know how you can render a 10,000-line diff without melting the browser? By focusing on simplicity. 🧵