Typical Microsoft! Turns Out VS Code Was Adding Copilot as a Git Co-Author Without Telling Anyone

VS Code quietly began adding a 'Co-authored-by: Copilot' trailer to git commits after a pull request in April changed the default value of the git.addAICoAuthor setting from 'off' to 'all'. This meant any user who hadn't manually configured the setting had Copilot credited in their git history — even on commits written entirely without AI assistance. The trailer also appeared when Copilot features were explicitly disabled, and was appended after commit finalization with no chance to review it. A VS Code team member acknowledged the mistake on Hacker News, apologized, and a fix reverting the default back to 'off' has been merged and is expected in VS Code 1.119.