Copilot’s cross-agent memory system lets agents learn and improve across your development workflow, starting with coding agent, CLI, and code review.The post Building an agentic memory system for GitHub Copilot appeared first on The GitHub Blog.

User feedback led us to clean up outdated mitigations. See why observability and lifecycle management are critical for defense systems.The post When protections outlive their purpose: A lesson on managing defense systems at scale appeared first on The GitHub Blog.

In December, we experienced five incidents that resulted in degraded performance across GitHub services.The post GitHub Availability Report: December 2025 appeared first on The GitHub Blog.

Announcing GitHub Security Lab Taskflow Agent, an open source and collaborative framework for security research with AI.The post Community-powered security with AI: an open source framework for security research appeared first on The GitHub Blog.

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.The post What AI is actually good for, according to developers appeared first on The GitHub Blog.

Learn how custom instructions, reusable prompts, and custom agents help GitHub Copilot deliver more accurate results.The post Want better AI outputs? Try context engineering. appeared first on The GitHub Blog.

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.The post Light waves, rising tides, and drifting ships: Game Off 2025 winners appeared first on The GitHub Blog.

AI is settling the “typed vs. untyped” debate by turning type systems into the safety net for code you didn’t write yourself.The post Why AI is pushing developers toward typed languages appeared first on The GitHub Blog.

Explore the GitHub Blog’s top posts covering the biggest software development topics of the year.The post Agentic AI, MCP, and spec-driven development: Top blog posts of 2025 appeared first on The GitHub Blog.

Learn why some long-enrolled OSS-Fuzz projects still contain vulnerabilities and how you can find them.The post Bugs that survive the heat of continuous fuzzing appeared first on The GitHub Blog.