We have a big iOS project and we are using .xcconfig files to define our compiler options and build settings. We have our SWIFT_TREAT_WARNINGS_AS_ERRORS set to YES so that all Swift related warnings will be reported as errors.
Now, we are trying to migrate to Xcode 16.1 and set 'targeted' in the 'Strict Concurrency Checking' flag. This produces some errors that are related to Swift's concurrency checks.
We are now planning to have an approach where we still want to keep SWIFT_TREAT_WARNINGS_AS_ERRORS as is but we want all concurrency related warnings to be still treated as warnings while the rest will get reported as errors.
We found this new compiler option - https://forums.swift.org/t/warnings-as-errors-exceptions/72925. It looks like the one we want but I think it is still not out yet and we need to wait until Swift 6.1 (correct me if im wrong).
Or is there any other way to do what we want to achieve?