Release Notes: This is a major version whose main highlights are: new compiler optimizations, new language features, and new library facilities.
Release Notes: A new API and new implementation multi-threading.
Release Notes: Closure unboxing optimization, new timed I/Os, and API optimizations (ALSA, FLAC, and mpg123).
Release Notes: This release adds modifications to the object system (language design and implementation), new APIs (alsa, flac, mpg123, avahi, csv parsing), new library functions (UDP support), new regular expression support, and a new garbage collector. The .NET platform is no longer supported.
Release Notes: Enhanced compile-time type analysis, new compile-time optimisations, a new interpreter, and new multimedia libraries.