I'm really excited about the new localization features in the 27 OSes. What languages does Xcode 27 support via agentic localization?
Glad you like this new feature!
Xcode works together with the coding agent you have configured, and doesn't impose any language restrictions on top of that.
That means that you can localize your app into any language your agent and the model support.
Please keep in mind to test your app in the new languages though, using tools like TestFlight.