GitHub Copilot Adds Enterprise Model Customization

How it developed

1. September 2, 2026GitHub ChangelogWhere it started

   GitHub Copilot Adds Enterprise Model Customization

2. September 4, 2026GitHub Changelog

   GitHub Copilot Expands Model Options and Features

   GitHub Copilot adds Claude Fable 5.1 and Gemini 3.8 Flash models, content exclusions, Agent Merge preview, and multi-root workspaces.

3. September 9, 2026GitHub Changelog

   GitHub Introduces Managed Permissions for Copilot

   GitHub introduces centrally managed permissions for Copilot agent operations to control shell commands and file access securely.