Highlights from Git 2.49
The open source Git project just released Git 2.49. Here is GitHub’s look at some of the most interesting features and changes introduced since last time.
The GitHub Blog
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Sign in as anyone: Bypassing SAML SSO authentication with parser differentials
Critical authentication bypass vulnerabilities (CVE-2025-25291 + CVE-2025-25292) were discovered in ruby-saml up to version 1.17.0. In this blog post, we’ll shed light on how these vulnerabilities that rely on a parser differential were uncovered.
Why Java endures: The foundation of modern enterprise development
For 30 years, Java has been a cornerstone of enterprise software development. Here’s why—and how to learn Java.
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GitHub Availability Report: February 2025
In February, we experienced two incidents that resulted in degraded performance across GitHub services.
Full exposure: A practical approach to handling sensitive data leaks
Treating exposures as full and complete can help you respond more effectively to focus on what truly matters: securing systems, protecting sensitive data, and maintaining the trust of stakeholders.
Four steps toward building an open source community
Three maintainers talk about how they fostered their open source communities.
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Highlights from Git 2.49
The open source Git project just released Git 2.49. Here is GitHub’s look at some of the most interesting features and changes introduced since last time.
How GitHub engineers learn new codebases
Strategies to quickly get up to speed, whether you’re a seasoned engineer or a newcomer to the field.
GitHub Copilot: The agent awakens
Introducing agent mode for GitHub Copilot in VS Code, announcing the general availability of Copilot Edits, and providing a first look at our SWE agent.
Changelog
View all changesEngineering
Finding leaked passwords with AI: How we built Copilot secret scanning
Passwords are notoriously difficult to detect with conventional programming approaches. AI can help us find passwords better because it understands context. This blog post will explore the technical challenges we faced with building the feature and the novel and creative ways we solved them.
How to debug code with GitHub Copilot
GitHub Copilot can streamline your debugging process by troubleshooting in your IDE, analyzing pull requests, and more, helping you tackle issues faster and more robustly.
How GitHub uses CodeQL to secure GitHub
How GitHub’s Product Security Engineering team manages our CodeQL implementation at scale and how you can, too.
Considerations for making a tree view component accessible
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The Performance Engineering team at GitHub assessed how CPU performance degrades as utilization increases and how this relates to capacity.
Spotlight
Using GitHub Copilot Free: What to know
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Inside GitHub: A sneak peak into the world of GitHub stickers
Go behind the scenes with Christina Warren (@filmgirl) as she uncovers the fascinating story of our beloved Octocat stickers. 🎉
Octoverse 2024: The rise of Python and AI
Find out how AI and a rapidly growing global developer community defined this past year on GitHub across public and open source projects.
News & insights
Engaging with the developer community on our approach to content moderation
We share the full year 2024 data update on our Transparency Center and highlight how developers can engage with us on our site policies and content moderation.
GitHub Availability Report: January 2025
In January, we experienced two incidents that resulted in degraded performance across GitHub services.
That’s a wrap: GitHub Innovation Graph in 2024
Discover the latest trends and insights on public software development activity on GitHub with the release of Q2 & Q3 2024 data for the Innovation Graph.
Seven years of open source: A more secure and diverse ecosystem
Explore insights into open source community growth, innovation, and inclusivity with an updated survey dataset.
GitHub Availability Report: December 2024
In December, we experienced two incidents that resulted in degraded performance across GitHub services.
Inside the research: How GitHub Copilot impacts the nature of work for open source maintainers
An interview with economic researchers analyzing the causal effect of GitHub Copilot on how open source maintainers work.
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