October 2025 update makes the Claude Sonnet 4.5 and Claude Haiku 4.5 coding models available for use in the GitHub Copilot ...

It can generate multi-file suggestions to bring older code closer to modern C++ idioms. The announcement emphasizes that these enhancements are part of ongoing work rather than immediate mandatory ...

Performing the migration in a separate branch helps teams validate builds and identify potential issues before integrating changes into production code. After the upgrade, developers should rebuild ...