GitHub releases Copilot Fusion and its Universe agent updates

Routing models and coordinating agent work

GitHub introduced Copilot Fusion at Universe on October 28 and made it generally available. Rather than selecting a single model, developers choose Standard, High or Max effort, and Copilot routes work or orchestrates models for the task. Fusion is a coding system around models, not a new foundation model. [1][3][2]

The same launch package added project and session coordination and review updates. Agent Merge, previously available in the Copilot app and Visual Studio Code, became integrated into GitHub pull requests for paid Copilot users, subject to organization policies. Users can ask it to watch and fix failing Actions workflows, merge conflicts or both. [1][4]

GitHub also made Agentic Workflows generally available, compiling natural-language Markdown into Actions workflows powered by coding agents. Its security extension for the Copilot app remained a public preview: it could explain and fix code-scanning alerts locally, without committing or pushing the changes itself. The package therefore included different availability stages. [5][6]