Securing the open source supply chain across GitHub
Recent attacks on open source focus on exfiltrating secrets; here are the prevention steps you can take today, plus a look at the security capabilities GitHub is working on.
Run multiple agents at once with /fleet in Copilot CLI
/fleet lets Copilot CLI dispatch multiple agents in parallel. Learn how to write prompts that split work across files, declare dependencies, and avoid common pitfalls.
Agent-driven development in Copilot Applied Science
I used coding agents to build agents that automated part of my job. Here’s what I learned about working better with coding agents.
GitHub for Beginners: Getting started with GitHub security
Learn how to secure your projects and keep them safe with GitHub Advanced Security.
What’s coming to our GitHub Actions 2026 security roadmap
A look at GitHub Actions’ 2026 roadmap, outlining how secure defaults, policy controls, and CI/CD observability harden the software supply chain end to end.
A year of open source vulnerability trends: CVEs, advisories, and malware
Reviewed advisories hit a four-year low, malware advisories surged, and CNA publishing grew—here’s what changed and what it means for your triage and response.
Updates to GitHub Copilot interaction data usage policy
From April 24 onward, interaction data—specifically inputs, outputs, code snippets, and associated context—from Copilot Free, Pro, and Pro+ users will be used to train and improve our AI models unless they opt out.
Building AI-powered GitHub issue triage with the Copilot SDK
Learn how to integrate the Copilot SDK into a React Native app to generate AI-powered issue summaries, with production patterns for graceful degradation and caching.
GitHub expands application security coverage with AI‑powered detections
CodeQL and AI‑powered detections work together in GitHub Code Security to identify vulnerabilities across more languages and frameworks.
Rethinking open source mentorship in the AI era
As contribution volume grows, mentorship signals are harder to read. The 3 Cs framework helps maintainers mentor more strategically… without burning out.
How Squad runs coordinated AI agents inside your repository
An inside look at repository-native orchestration with GitHub Copilot and the design patterns behind multi-agent workflows that stay inspectable, predictable, and collaborative.
Investing in the people shaping open source and securing the future together
See how GitHub is investing in open source security funding maintainers, partnering with Alpha-Omega, and expanding access to help reduce burden and strengthen software supply chains.
GitHub for Beginners: Getting started with GitHub Actions
Set up your first GitHub Actions workflow in this how-to guide.
Continuous AI for accessibility: How GitHub transforms feedback into inclusion
AI automates triage for accessibility feedback, allowing us to focus on fixing barriers—turning a chaotic backlog into continuous, rapid resolutions.
GitHub availability report: February 2026
In February, we experienced six incidents that resulted in degraded performance across GitHub services.
Addressing GitHub’s recent availability issues
GitHub recently experienced several availability incidents. We understand the impact these outages have on our customers and are sharing details on the stabilization work we’re prioritizing right now.
The era of “AI as text” is over. Execution is the new interface.
AI is shifting from prompt-response interactions to programmable execution. See how the GitHub Copilot SDK enables agentic workflows directly inside your applications.
Under the hood: Security architecture of GitHub Agentic Workflows
GitHub Agentic Workflows are built with isolation, constrained outputs, and comprehensive logging. Learn how our threat model and security architecture help teams run agents safely in GitHub Actions.
How to scan for vulnerabilities with GitHub Security Lab’s open source AI-powered framework
GitHub Security Lab Taskflow Agent is very effective at finding Auth Bypasses, IDORs, Token Leaks, and other high-impact vulnerabilities.
60 million Copilot code reviews and counting
How Copilot code review helps teams keep up with AI-accelerated code changes.
Scaling AI opportunity across the globe: Learnings from GitHub and Andela
Developers connected to Andela share how they’re learning AI tools inside real production workflows.
How we rebuilt the search architecture for high availability in GitHub Enterprise Server
Here’s how we made the search experience better, faster, and more resilient for GHES customers.
Join or host a GitHub Copilot Dev Days event near you
GitHub Copilot Dev Days is a global series of hands-on, in-person, community-led events designed to help developers explore real-world, AI-assisted coding.
GitHub for Beginners: Getting started with GitHub Issues and Projects
Learn how to get organized and collaborate more efficiently with this step-by-step tutorial.
From idea to pull request: A practical guide to building with GitHub Copilot CLI
A hands-on guide to using GitHub Copilot CLI to move from intent to reviewable changes, and how that work flows naturally into your IDE and GitHub.
What’s new with GitHub Copilot coding agent
GitHub Copilot coding agent now includes a model picker, self-review, built-in security scanning, custom agents, and CLI handoff. Here’s what’s new and how to use it.
Multi-agent workflows often fail. Here’s how to engineer ones that don’t.
Most multi-agent workflow failures come down to missing structure, not model capability. Learn the three engineering patterns that make agent systems reliable.
How AI is reshaping developer choice (and Octoverse data proves it)
AI is rewiring developer preferences through convenience loops. Octoverse 2025 reveals how AI compatibility is becoming the new standard for technology choice.
What to expect for open source in 2026
Let’s dig into the 2025’s open source data on GitHub to see what we can learn about the future.
Securing the AI software supply chain: Security results across 67 open source projects
Learn how The GitHub Secure Open Source Fund helped 67 critical AI‑stack projects accelerate fixes, strengthen ecosystems, and advance open source resilience.
Automate repository tasks with GitHub Agentic Workflows
Discover GitHub Agentic Workflows, now in technical preview. Build automations using coding agents in GitHub Actions to handle triage, documentation, code quality, and more.
Welcome to the Eternal September of open source. Here’s what we plan to do for maintainers.
Open source is hitting an “Eternal September.” As contribution friction drops, maintainers are adapting with new trust signals, triage approaches, and community-led solutions.
GitHub availability report: January 2026
In January, we experienced two incidents that resulted in degraded performance across GitHub services.
Continuous AI in practice: What developers can automate today with agentic CI
Think of Continuous AI as background agents that operate in your repository for tasks that require reasoning.
Pick your agent: Use Claude and Codex on Agent HQ
Claude by Anthropic and OpenAI Codex are now available in public preview on GitHub and VS Code with a Copilot Pro+ or Copilot Enterprise subscription. Here’s what you need to know and how to get started today.
What the fastest-growing tools reveal about how software is being built
What languages are growing fastest, and why? What about the projects that people are interested in the most? Where are new developers cutting their teeth? Let’s take a look at Octoverse data to find out.
How to maximize GitHub Copilot’s agentic capabilities
A senior engineer’s guide to architecting and extending Copilot’s real-world applications.
From pixels to characters: The engineering behind GitHub Copilot CLI’s animated ASCII banner
Learn how GitHub built an accessible, multi-terminal-safe ASCII animation for the Copilot CLI using custom tooling, ANSI color roles, and advanced terminal engineering.
Year recap and future goals for the GitHub Innovation Graph
Discover the latest trends and insights on public software development activity on GitHub with data from the Innovation Graph through Q3 2025.
7 learnings from Anders Hejlsberg: The architect behind C# and TypeScript
Anders Hejlsberg shares lessons from C# and TypeScript on fast feedback loops, scaling software, open source visibility, and building tools that last.
Help shape the future of open source in Europe
Read GitHub’s position on the European Open Digital Ecosystem Strategy and learn how to participate.
Power agentic workflows in your terminal with GitHub Copilot CLI
Explore the GitHub Copilot CLI and try interacting with Copilot directly from your terminal.
Build an agent into any app with the GitHub Copilot SDK
Now in technical preview, the GitHub Copilot SDK can plan, invoke tools, edit files, and run commands as a programmable layer you can use in any application.
A cheat sheet to slash commands in GitHub Copilot CLI
Run tests, fix code, and get support—right in your workflow. Stay focused and let Copilot handle the busywork.
AI-supported vulnerability triage with the GitHub Security Lab Taskflow Agent
Learn how we are using the newly released GitHub Security Lab Taskflow Agent to triage categories of vulnerabilities in GitHub Actions and JavaScript projects.
Context windows, Plan agent, and TDD: What I learned building a countdown app with GitHub Copilot
Learn how I managed context to keep Copilot focused, used the Plan agent to sharpen vague requirements, and required Test Driven Development practices to catch bugs before users.
Building an agentic memory system for GitHub Copilot
Copilot’s cross-agent memory system lets agents learn and improve across your development workflow, starting with coding agent, CLI, and code review.
When protections outlive their purpose: A lesson on managing defense systems at scale
User feedback led us to clean up outdated mitigations. See why observability and lifecycle management are critical for defense systems.
GitHub Availability Report: December 2025
In December, we experienced five incidents that resulted in degraded performance across GitHub services.
Community-powered security with AI: an open source framework for security research
Announcing GitHub Security Lab Taskflow Agent, an open source and collaborative framework for security research with AI.
What AI is actually good for, according to developers
AI is designed to help you do what you love most, not replace your expertise. Discover how developer feedback and real-world experience are shaping AI coding tools that keep you in control.
Want better AI outputs? Try context engineering.
Learn how custom instructions, reusable prompts, and custom agents help GitHub Copilot deliver more accurate results.
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.
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.
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.
Bugs that survive the heat of continuous fuzzing
Learn why some long-enrolled OSS-Fuzz projects still contain vulnerabilities and how you can find them.
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.
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.
5 podcast episodes to help you build with confidence in 2026
Looking ahead to the New Year? These GitHub Podcast episodes help you cut through the noise and build with more confidence across AI, open source, and developer tools.
This year’s most influential open source projects
From Appwrite to Zulip, Universe 2025’s Open Source Zone was stacked with standout projects showing just how far open source can go. Meet the maintainers—and if you want to join them in 2026, you can now apply for next year’s cohort.