MONO 2.2 新特性：

• JIT
  • New JIT engine (Linear IL)
  • Full AOT
  • Full Generics Sharing
  • Mono.Simd
• MoMA Web Tools
• ADO.NET Updates:
  • Updated TDS 8 (Transactions)
• ASP.NET Routing
• Native Windows.Forms engine (Windows only)
• Intrinsics Support
• C# Shell
• C# Evaluation API (Mono.CSharp.Evaluator)

具体参看：http://www.mono-project.com/Release_Notes_Mono_2.2