0.19.3
This release makes the project compile with Swift 6.0.
This release also enables using Swift 6.0 as the compiler backend for building packages (this is different from compiling Unidoc itself!) and also disables several Unidoc assertions that collide with known regressions in the Swift 6.0 compiler.
Please note, on macOS, using a downloadable non-Xcode 6.0 toolchain as a package compiler backend is not recommended. In particular, you are likely to run into swiftlang/swift#76561 !