The latest version of Xcode available on:
https://developer.apple.com/download/applications/
is Xcode 26.2 build 17C52.
It was released today, December 12, 2025.
However, uploads are failing with error:
Validation failed. This bundle is invalid. Apple is not currently accepting applications built with this version of Xcode.
I have verified my Xcode is not beta:
I think that at least the non-release candidate, latest version of Xcode should be allowed to submit apps.