New Copilot models turn on by default for Business and Enterprise from August 26

GitHub added a default enablement policy so newly GA models are on by default for Business and Enterprise from August 26, 2026, unless admins opt out. Open-weight models and models outside GitHub's data retention agreement are excluded.

Who is affected:

Copilot Business and Enterprise admins who approve models manually.

What to do:

Set the policy to disabled before August 26 if you want to approve each model.