Apple ships Swift 6.4 with faster Wasm and simpler builds

Apple has released Swift 6.4, an update to its programming language with improvements to core libraries, builds, debugging, interoperability and performance. Swift Build is now the default in Swift Package Manager, and WebAssembly bridging via JavaScript Kit is up to 40 times faster.

• Swift Build is now the default in Swift Package Manager on Linux, macOS and Windows
• WebAssembly bridging through JavaScript Kit is up to 40x faster; Wasm SDK is on Swift.org
• Subprocess reaches 1.0, a stable cross-platform way to run and interact with programs
• LLDB now uses precise dependency tracking, shrinking debug builds and dSYM bundles