That is the time between our last major Mono release and the new hotness: Mono 2.10.

New in this release:

• Google Native Client Support
• New Profiler engine, it is beyond amazing.
• Faster socket stack
• Improved Parallel Framework
• Our SGen GC now supports Precise Stack Scanning and has been further fine tuned to increase our performance.
• Unified MonoTouch/Monodroid runtime support
• New Cecil/Light API is faster and lighter
• New C# Compiler backend (can now use any custom mscorlib)
• VB Compiler can now compile to both 2.0 and 4.0 profiles.
• Supports ASP.NET MVC3, Razor and new WebPages.
• New WebMatrix.Data database API.
• Improved OSX Mono
• F#, IronRuby and IronPython are now bundled in OSX and packaged for Linux.

Check out our Mono 2.10 release notes for all the details.