Swift 6.4 Released

Swift 6.4 has been released with improvements across multiple areas including cross-platform build consistency, new interoperability features with C++ and Java, faster WebAssembly performance, and enhanced embedded Swift capabilities. The release introduces syntax simplifications like optional some/any types without parentheses, source-level compiler warning control, and async support in defer blocks to streamline everyday coding. Performance improvements maintain memory safety through new array types and the Iterable protocol for operations without copying overhead.