Installing Swift 5.7.1 from Swift.org - Download Swift results in an installation that reports version 5.7.0 in the Settings app and in Programs and Features. Installing 5.6.3 and 5.6.2 report version 5.6.1, as well.
This is seen as a problem for publishing a manifest for Swift 5.7.1 on winget:
Looks as if the publisher forgot to update the
DisplayVersion
ARP Entry. It should be5.7.1
instead of5.7.0