No it wasn’t fixed with beta 2 and it will never be fixed either because it is not Apples fault.
It was Xojo Inc that parsed the text wrong. It is now fixed in Xojo 2022R4.1
So if you use System.version in your app, you will need to recompile and release it for your users, otherwise it will crash when the user installs macOS 13.2 (or any future version)
See this thread: NilObjectException for System.VersionData