@github

The AI-powered developer platform to build, scale, and deliver secure software.

 San Francisco, CA
github.com
Joined February 2008
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  • Followers2.7M
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GitHub
@github
Sep 19
Yes or YES? Get your #GitHubUniverse pass 👇 githubuniverse.com/?utm_sour…
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🆕 @AnthropicAI's Claude Sonnet 5.5 is now generally available in GitHub Copilot. Designed for well-scoped everyday work like building features and fixing bugs, Claude Sonnet 5.5 stood out for its efficiency in our early testing: It matched Sonnet 5 on coding tasks while using significantly fewer steps, tokens, and tool calls. Plus, it finished tasks noticeably faster. ⚡️ Try it out in the GitHub Copilot app, CLI, and @code. github.blog/changelog/2026-0…

Claude Sonnet 5.5 in GitHub Copilot - GitHub Changelog

Claude Sonnet 5.5, Anthropic’s newest Sonnet model, is now generally available in GitHub Copilot. It is designed for well-scoped everyday work like building features and fixing bugs. In our early…

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Did you know? You can run agents in parallel in the GitHub Copilot app. Each session gets its own Git worktree and context, so you can build, review, and test all at the same time. Here's how to get started 👇 github.blog/ai-and-ml/github…
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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
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ALT A group celebrates with an award in a meeting room.

Attendees sit in a bright classroom.

ALT Attendees sit in a bright classroom.

A large group gathers in a lecture hall.

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

When chat is the wrong UI

Article · @github
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GitHub retweeted
GPS
@madebygps
Sep 25
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…
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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…
GitHub Advanced Security webinar, How to Trust the Code You Ship, live Tuesday, September 29 at 9 am PT.

ALT GitHub Advanced Security webinar, How to Trust the Code You Ship, live Tuesday, September 29 at 9 am PT.

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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…
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More #GitHubUniverse sessions just dropped 🆕 Grab your pass, and we'll see you October 28-29 🌁 githubuniverse.com/?utm_sour…
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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.
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ALT Muse mascot dressed in GitHub sweatshirt and hat

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Check out the deep dive on making million-line pull requests with hundreds of comments feel like ordinary reviews. 👇 github.blog/engineering/user…

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.

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The team also built a measurement loop that ran unattended against a huge pull request, using production instrumentation to detect blank gaps, jank, leaked observers, and scroll corrections.
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The solution was two independent geometries: • Deterministic code height, known up front • Dynamic comment blocks, measured lazily and corrected near the viewport That keeps comment reflows from rebuilding the code layout.
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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.
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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. 🧵
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➡️ 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
Let's Learn GitHub Copilot SDK. Live sessions begin September 24.

ALT Let's Learn GitHub Copilot SDK. Live sessions begin September 24.

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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…

Should you read the code, is RAG dead, and did Skills kill MCP?

We dive into these questions and other AI hot takes on the latest episode of the GitHub Podcast.

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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…

ELC Podcast - Navigating from individual AI adoption to team-level transformation while scaling

Jakub Oleksy, SVP of Software Engineering @ Github, joins the podcast to discuss how Github is addressing some of the biggest challenges facing the industry when it comes to infrastructure scaling,...

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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…

This video is larger than Cloudflare's 512 MB cache, so it can't be played through. More donations are needed to cover a larger cache. Donate

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📣 @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…

OpenAI's GPT-6 Sol and GPT-6 Luna now available - GitHub Changelog

OpenAI’s GPT-6 family is expanding in GitHub Copilot with two additional models: GPT-6 Sol, and GPT-6 Luna. Joining the previously released GPT-6 Astra, these new options let you select the…

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🚀 @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…
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