Yes or YES? Get your #GitHubUniverse pass 👇 githubuniverse.com/?utm_sour…

Learn more about the GitHub Copilot app and Copilot CLI with your community. 💡 Join an in-person event near you! ⬇️ gh.io/join-dev-days

Chat, tell us: Is chat always the right UI? @burkeholland argues no, not when we have canvases in the GitHub Copilot app.

GitHub has been running on 100% CSS modules as of June 2026, leading to 3–22% faster server-side rendering across our highest-traffic pages. The team is locked in! Performance, user experience, and delight continue to be top of mind for all of us at GitHub. github.blog/engineering/arch…

You can write and ship more code than ever. But can you trust it? On September 29, we'll cover how you can use GitHub Advanced Security to validate your code every step of the way in the development process. Register now 👇 github.registration.goldcast…

Dependabot pull requests are easy to review one at a time ... and tedious to review by the dozen. Build a GitHub Copilot app automation that does the first pass for you. Once it reviews open Dependabot pull requests, groups them by risk, verifies CI status, it'll provide a short summary. You write the instructions in plain language, so you can shape the automation to match how your team works. Schedule it before your workday starts and the results are ready when you log in. Try it out 👇 github.blog/ai-and-ml/github…

More #GitHubUniverse sessions just dropped 🆕 Grab your pass, and we'll see you October 28-29 🌁 githubuniverse.com/?utm_sour…

GitHub 🤝 @Muse A new way to connect your GitHub account to review PRs, catch up on issues and notifications, and leave comments without switching tabs.

Code is the easy part: virtualize the rows, keep the DOM small, and use known line heights. Comments are harder. Their height changes with markdown, replies, expandable sections, images, and async content.

A pull request with 2,200 files, 1M+ changed lines, and 400+ inline comments. Impossible to review? Not if you have the GitHub Copilot app. ✨ The rebuilt pull request view keeps even this extreme diff fast and smooth. 🧵

➡️ Coming soon: Let's Learn GitHub Copilot SDK Starting September 24, we'll host beginner-friendly livestreams on how to build agentic applications with the GitHub Copilot SDK, without implementing the agent loop yourself. Includes sessions specifically for .NET and Java development. Sign up for English, Chinese, Portuguese, Spanish, Japanese, or Korean. gh.io/letslearn

Should you review your AI-generated code? Is RAG over? Did Skills make MCP obsolete? The GitHub Podcast responds to these hot takes 👇 github.blog/ai-and-ml/should…

Back on X! I’m looking forward to talking with developers about how we’re scaling GitHub, improving reliability, and how AI is changing the way we build software. I discussed all three on the Engineering Leadership Podcast: sfelc.com/podcasts/navigatin…

My AI agent now has a face! 🤖 Idle. Working. Needs a decision. Done. It’s a Waveshare ESP32 on my desk. I pointed Copilot CLI at a photo of the device and ended up with blink, look-around, tap, sleep, and hook-driven states. Also created a web-based "character studio" so I wasn’t flashing firmware after every animation tweak. Full walkthrough of the process in the video! 🎥 Repo: github.com/danwahlin/esp32-a…

📣 @OpenAIDevs's GPT-6 family is expanding in GitHub Copilot with two additional models now generally available. ☀️ GPT-6 Sol: the balanced model for interactive and agentic coding. 🌕 GPT-6 Luna: a lightweight, cost-efficient model for smaller tasks and the lowest-cost option in the family. Try them in the GitHub Copilot app or @code. github.blog/changelog/2026-0…

🚀 @AnthropicAI's Claude Opus 5.5 is now generally available in GitHub Copilot. Our early testing shows it stands out in efficiency, delivering task resolution comparable to Claude Opus 5 while using significantly fewer steps and tokens, with fast error recovery on multistep tasks. Try it out for agentic coding, long-running agentic tasks, and knowledge work. Find it in the GitHub Copilot app, CLI, and @code. github.blog/changelog/2026-0…

Just one engineer and a team of agents ported the GitHub Copilot agent runtime to Rust, shipping 800,000 lines of production code while retaining code quality. 🚀 How it worked 👇 github.blog/ai-and-ml/genera…

Coming soon to the GitHub Copilot desktop app: editable diffs!! ✏️ Agent got you most of the way there? Make those last tweaks directly in the diff, right where you’re reviewing the changes. Co-authored with @lichinlin!