Improving site performance by shipping more CSS
A look at how a design system shipped major changes without breaking the world.
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.
When chat is the wrong UI
What is a developer to do when they need something more tangible than a chat box? Enter canvases.
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.
Developers want more efficient software. Here’s what over 1000 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.
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.
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.
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.
Marketing ops as code: Automating events from planning to follow-up on GitHub
If you can write down how you do your work, you can automate it. Here's what I did to support GitHub's APAC marketing team.
GitHub availability report: August 2026
In August, we experienced five incidents that resulted in degraded performance across GitHub services.
GitHub Copilot app for Beginners: Using the diff, terminal, and browser
Checking agent-generated code usually means hopping between tabs. Learn how to view diffs, run terminal commands, and preview web apps side by side in the GitHub Copilot app.
Project HydraFusion: Frontier quality via multi-model orchestration
In controlled offline evaluations, HydraFusion’s selective coding workflows matched or exceeded the evaluated Opus 5 baseline while reducing estimated workflow cost. Now available as a research preview in GitHub Copilot.
GitHub Copilot app for Beginners: Run several agents at once
Learn how to run parallel agents in the GitHub Copilot app, and experience the moment it stops feeling scary and starts feeling powerful.
Decoding the new AI lingo: Loops, harnesses, squads, hill climbing… oh my!
From loop engineering to harnesses, squads, and open weights, the GitHub Podcast breaks down the AI terms showing up in developer conversations.
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.
OpenClaw went viral. Meet the maintainers building and securing it.
OpenClaw is the fastest-growing project in GitHub history. Peter Steinberger and several maintainers share what they learned in the project’s first six months.
GitHub Copilot app for Beginners: Automate Dependabot pull request triage
Managing library updates can be tedious at times. Learn how the GitHub Copilot app can handle this type of repetitive task.
How to evaluate LLMs before production
These are the lessons we learned evaluating LLMs for real-world secret scanning.
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.
The August 17 outage, and the work ahead
An update on the August 17 outage and the steps we’re taking to improve reliability.
GitHub Copilot app for Beginners: Managing your work
If you’re juggling multiple Copilot sessions, use the My work pane to track what’s in flight, what’s done, and what’s next.
How canvases make agentic workflows visible, steerable, and cost-efficient
Chat is great for intent, but agent work gets lost in the scroll. Here is how I use canvases with my agentic workflows—and why your workflow also deserves a canvas.
How to bring your software delivery workflow into GitHub with agent apps
See how four GitHub agent apps can help you scope, secure, roll out, and ship a feature across the SDLC–all without leaving GitHub.
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.
What 50 open source projects taught us about security in the AI era
See how the open source projects in Session 4 of the GitHub Secure Open Source Fund combined AI-assisted workflows, maintainer expertise, GitHub security tools, expert guidance, and funding to improve project security.
GitHub availability report: July 2026
In July, we experienced eight incidents that resulted in degraded performance across GitHub services.
GitHub Copilot app for Beginners: Write your first prompt
Learn how to write your first prompt in the GitHub Copilot app, choose the right context and model, and start your first task with confidence.
Your contributors are AI-first now. Is your project?
AI contributors are already in your queue. AutoGPT maintainer Nicholas Tindle shares the repo instructions, gates, and boundaries that keep maintainers in control.
From coder to orchestrator: How agents shift the role of a developer
Developers are owning more of the delivery system around code, not just code itself. Join us during GitHub Universe to meet other devs, learn something new, and explore what’s next.
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.
A guide to slash commands in the GitHub Copilot app
Go beyond chat in the GitHub Copilot app with these slash commands. They’ll help you plan, collaborate, automate, and customize your dev workflow.
How we took malware advisories beyond npm
GitHub malware advisories no longer stop at npm. Here’s how we wired OpenSSF’s malicious-packages data into the Advisory Database, and why we built the pipeline paranoid.
How the GitHub legal team used Copilot CLI to streamline their workflows
Learn how to build tools to simplify how you work—without writing a single line of code.
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.
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.
Stacked sessions and pull requests in the GitHub Copilot app
Learn how I modernized an old codebase of mine using stacked sessions and pull requests in the GitHub Copilot app.
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.
Disrupting supply chain attacks on npm and GitHub Actions
Explore the changes we’ve shipped across npm and GitHub Actions over the past few months to disrupt supply chain attack techniques and limit their impact.
The harness is all you need (mostly)
A practical GitHub Copilot workflow for prototyping, planning, implementing, and reviewing software without chasing every new AI tool.
GitHub Copilot app for Beginners: Getting started
New to the GitHub Copilot app? Learn how to start projects, work with AI agents, explore canvases, and streamline your development workflow.
The case for a cooldown: Why Dependabot now waits before issuing version updates
A new default three-day cooldown delays version update pull requests so maintainers and security researchers can address findings in a release before it gets into your code.
Copilot vs. raw API access: What are you actually paying for?
Copilot now bills usage at listed API rates. Compare direct model access with the coding workflow, policy, and harness work around it.
Next chapter: Restructuring GitHub’s bug bounty program
GitHub is making some significant changes to its bug bounty program, shifting its focus to give researchers a better experience working with the GitHub team.
How to build interactive experiences with canvases
Canvases turn AI into interactive workspaces where you can visualize information, explore workflows, and take action across complex tasks.
$100 million for open source: A milestone built by the community
Celebrating $100 million contributed by the community to the people who build and sustain open source every day.
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.
GitHub for Beginners: Your roadmap to mastering the GitHub essentials
New to GitHub? This beginner’s guide explains version control, repositories, and pull requests—plus everything else you need to start working confidently on GitHub.
Better tools made Copilot code review worse. Here’s how we actually improved it.
How migrating Copilot code review to shared Unix-style code exploration tools reduced review cost by reshaping agent workflows around pull request evidence.
How GitHub gave every repository a durable owner
GitHub had over 14,000 repositories. Fewer than half had clear ownership. Here’s how we gave every active repository a validated owner in under 45 days, archived the rest, and made ownership the foundation for everything that followed.
Automating cross-repo documentation with GitHub Agentic Workflows
Explore how the Aspire team turns merged product changes into SME-reviewed docs pull requests, closing the gap between release and documentation.
GitHub availability report: June 2026
In June, we experienced six incidents that resulted in degraded performance across GitHub services.
How GitHub Copilot enables zero DNS configuration for GitHub Pages
Go from an empty repository to a live custom domain with HTTPS in about 14 minutes, without manually editing a single DNS record.
Q1 2026 Innovation Graph update: Open source collaboration is accelerating worldwide
New Innovation Graph data shows global developer communities growing faster than ever, with collaboration reaching new highs across many economies.
How GitHub used secret scanning to reach inbox zero
GitHub had 20,000+ secret scanning alerts across 15,000 repositories. Here’s how we separated signal from noise, built remediation workflows, and reached inbox zero in nine months.
6 security settings every GitHub maintainer should enable this week
These six free settings will not make your project unhackable. Nothing will. What they will do is close the easy doors. Turn these on, and your project will be meaningfully harder to attack than it was before.
How GitHub maintains compliance for open source dependencies
Explore how the Open Source Program Office uses GitHub’s new license compliance product to manage open source dependencies at scale.
Highlights from Git 2.55
The open source Git project just released Git 2.55. Here is GitHub’s look at some of the most interesting features and changes introduced since last time.
Inside the Advisory Database and what happens when vulnerability volume breaks records
The GitHub Advisory Database is processing more vulnerability reports than ever before. Here’s what’s driving the surge, how we’re responding, and how the community can help.
GitHub and UNDP team up to advance development priorities in Ghana with open source
GitHub joined the United Nations Development Programme in Ghana to explore how open source governance can support one of West Africa’s most ambitious digital reform efforts.
Transitioning as a Hubber
How GitHub’s culture and benefits helped me be the best version of myself.
