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GitHub Blog
GitHub Copilot weekly releases — August 31
GitHub Copilot has announced its weekly releases for August 31, introducing several significant updates. The expansion of model choices now includes Claude Fable 5.1 and Gemini 3.8 Flash for various user tiers, enhancing flexibility. Additionally, new content protections are implemented, ensuring sensitive code remains secure. Features like Agent Merge are now in public preview, optimizing the pull request process. Users will also enjoy experimental features like multi-root workspaces and personalized chat backgrounds, aiming to improve overall usability and code quality.
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Published 4 Sept 2026, 21:45 UTC1 min read
Lead image — GitHub Blog
Brief
NewsBite reading:GitHub Copilot Introduces New Features and Model Options
TL;DR
- Claude Fable 5.1 available for Copilot Pro+ and above
- Gemini 3.8 Flash rolling out to various user tiers
- Content exclusions implemented to protect sensitive code
- Agent Merge feature now in public preview
- New experimental features like personalized chat backgrounds
Interesting facts
- The Copilot app and CLI are enhancing content protections to keep sensitive information safe.
- Multi-root workspaces offer Copilot features across multiple folders, increasing productivity.
What changed
GitHub Copilot has expanded its model offerings and introduced several new functionalities and protections.