Go 1.24 delivers on various performance improvements, full support for generic type aliases with the Go programming language, various Go tooling improvements, standard library additions to facilitate FIPS 140-3 compliance, the "os.Root" type in the standard library to perform file-system operations isolated under a specific directory, and improved WebAssembly support.
When it comes to the performance work within Go 1.24, the runtime CPU overhead has been decreased by 2~3% on average across various representative benchmarks. There is more efficient memory allocation of small objects, a new runtime-internal mutex implementation, and a new built-in map implementation based on Swiss Tables.
WebAssembly improvements with Go 1.24 include a new "go:wasmexport" directive for Go programs to export functions to the WebAssembly host and support for building Go programs as a WASI reactor/library.
Downloads and more information on this week's Go 1.24 release at Go.dev .