Mono Project is an Open Source implementation of the various ECMA and .NET framework technologies for Unix, MacOS X, and Windows. The project includes a compiler, a class library, and a CLI runtime engine. License: GNU Lesser General Public License (LGPL) Changes:
This release has a better code generation engine, called Linear IL. Generic sharing is now turned on in all cases. Support for monitoring the runtime internals is now available through a new PerformanceCounters implementation. This release introduces the Attach functionality, SIMD support, a more efficient regex interpreter, a new interactive shell for C#, plus many other improvements and bugfixes.