With the latest Xcode 26.4 my project fails to compile due to a "compiler unable to type-check in reasonable time" error with a library I've been using for years and has not changed.
The library is https://github.com/ngageoint/mgrs-ios and is specifically around this line https://github.com/ngageoint/mgrs-ios/blob/master/mgrs-ios/utm/UTM.swift#L96. Since this isn't my library I can't change it, but again we've been using this library for years now without issue - it was only when Xcode updated this morning that our compilation workflow broke.
(Compilation machine is an M3 Pro with 18GB of RAM, so I don't think that's the problem here)