Support for MacOS X Mavericks
Portable Class Libraries runtime support: you can now run PCL code with Mono.
XBuild now supports Portable Class Libraries
mkbundle now uses IKVM.Reflection, allowing you to create bundles with any profile, without resorting to hacks
We fixed LLVM loadable module on OSX
New Entity Framework shipping with Mono
csharp REPL terse bug fixes.
Fine tuning of our internal uses of the class libraries for performance
System.WeakReference
SGen can now return memory to the OS
WCF has cookie support
Many performance optimizations on Marshal class
LINQ optimizations
Many fixes to our SGen concurrent collector
此外还修复了很多的bug,详情请看http://news.mono-project.com/2013/06/19/new-mono-releases/
来自:开源中国社区