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The GitHub Blog

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Building an agentic memory system for GitHub Copilot

Our vision is to evolve GitHub Copilot into an ecosystem of agents that collaborate across the entire development lifecycle from coding and code review to security, debugging, deployment, and mainte...


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When protections outlive their purpose: A lesson on managing defense systems at scale

To keep a platform like GitHub available and responsive, it’s critical to build defense mechanisms. A whole lot of them. Rate limits, traffic controls, and protective measures spread across multiple layers of infrastructure. These all play a role in keeping the service healthy during abuse or attacks.

We recently ran into a challenge: Those same protections can quie...


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GitHub Availability Report: December 2025

In December, we experienced five incidents that resulted in degraded performance across GitHub services.

December 08 19:51 UTC (lasting 1 hour and 15 minutes)

Between November 26, 2025, at 02:24 UTC and December 8, 2025 at 20:26 UTC, enterprise administrators experienced a disrupt...


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Community-powered security with AI: an open source framework for security research

Since its founding in 2019, GitHub Security Lab has had one primary goal: community-powered security. We believe that the best way to improve software security is by sharing knowledge and tools, and by using open source software so that everybody is empowe...


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What AI is actually good for, according to developers

At GitHub, we hear questions all the time that probably sound familiar to you:

Does AI really help, or are you just trying to get me to use your product? Can I trust AI tools with my codebase? Are these tools built for marketing, or for real productivity? Does AI improve my flow, or break it?

These questions are real and valid. I did a livestream for o...


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