Xcode 12.1 (GM) Released

Both 12.1 and 12.1.1 include Swift 5.3:

$ xcrun swift -version

Apple Swift version 5.3 (swiftlang-1200.0.29.2 clang-1200.0.30.1)

I tested the different Xcode installs, and it looks like Apple doesn’t include 5.3.1 until Xcode 12.2.