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Learn how custom instructions, reusable prompts, and custom agents help GitHub Copilot deliver more accurate results.
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Light waves, rising tides, and drifting ships: Game Off 2025 winners
Out of more than 700 games submitted to Game Off 2025, these ten winners stand out for creativity, craft, and bold interpretations of the WAVES theme. All are free to play, with source code available to explore.
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Why AI is pushing developers toward typed languages
AI is settling the “typed vs. untyped” debate by turning type systems into the safety net for code you didn’t write yourself.
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Agentic AI, MCP, and spec-driven development: Top blog posts of 2025
Explore the GitHub Blog’s top posts covering the biggest software development topics of the year.
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Bugs that survive the heat of continuous fuzzing
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WRAP up your backlog with GitHub Copilot coding agent
An easy-to-remember acronym, WRAP will help you write effective issues, refine your instructions, and get the most out of Copilot coding agent.
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Strengthening supply chain security: Preparing for the next malware campaign
Security advice for users and maintainers to help reduce the impact of the next supply chain malware attack.
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Why AI is pushing developers toward typed languages
AI is settling the “typed vs. untyped” debate by turning type systems into the safety net for code you didn’t write yourself.
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Spec-driven development with AI: Get started with a new open source toolkit
Developers can use their AI tool of choice for spec-driven development with this open source toolkit.
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How to write a great agents.md: Lessons from over 2,500 repositories
Learn how to write effective agents.md files for GitHub Copilot with practical tips, real examples, and templates from analyzing 2,500+ repositories.
Changelog
View all changesEngineering
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Post-quantum security for SSH access on GitHub
GitHub is introducing post-quantum secure key exchange methods for SSH access to better protect Git data in transit.
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How GitHub engineers tackle platform problems
Our best practices for quickly identifying, resolving, and preventing issues at scale.
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GitHub Issues search now supports nested queries and boolean operators: Here’s how we (re)built it
Plus, considerations in updating one of GitHub’s oldest and most heavily used features.
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Design system annotations, part 2: Advanced methods of annotating components
How to build custom annotations for your design system components or use Figma’s Code Connect to help capture important accessibility details before development.
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Design system annotations, part 1: How accessibility gets left out of components
The Accessibility Design team created a set of annotations to bridge the gaps that design systems alone can’t fix and proactively addresses accessibility issues within Primer components.
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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The future of AI-powered software optimization (and how it can help your team)
We envision the future of AI-enabled tooling to look like near-effortless engineering for sustainability. We call it Continuous Efficiency.
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Let’s talk about GitHub Actions
A look at how we rebuilt GitHub Actions’ core architecture and shipped long-requested upgrades to improve performance, workflow flexibility, reliability, and everyday developer experience.
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GitHub Availability Report: November 2025
In November, we experienced three incidents that resulted in degraded performance across GitHub services.
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The new identity of a developer: What changes and what doesn’t in the AI era
Discover how advanced AI users are redefining software development—shifting from code producers to strategic orchestrators—through delegation, verification, and a new era of AI-fluent engineering.
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Your stack, your rules: Introducing custom agents in GitHub Copilot for observability, IaC, and security
Use partner-built Copilot agents to debug, secure, and automate engineering workflows across your terminal, editor, and github.com.
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The ultimate gift guide for the developer in your life
Finding the perfect gift for your favorite developer is easy with our top tips.
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The GitHub Podcast
Catch up on the GitHub podcast, a show dedicated to the topics, trends, stories and culture in and around the open source developer community on GitHub.