Mono 2.8发布：C#4.0和更好的性能

在社区很多人不看好的微软.NET开源实现Mono发布了Mono 2.8，这是一个重要的版本更新，有着显著的改善，Mono 2.8包括C＃4.0的支持（也是现在的默认配置），新一代的垃圾回收器，新的框架，LLVM的支持，目前被认为是稳定的，2.0版本的embedding API ，对OpenBSD的支持，移除了对GLib的依赖，并有.NET 2.0的线程池的异常行为。
新的微软的开源协议的框架包括ASP.NET 4.0，并行框架，System.XAML，System.Dynamic，Managed Extensibility Framework ，ASP.NET MVC2，System.Data.Services.Client，WCF Route和.NET 4.0的CodeContracts。

C# 4.0
Defaults to the 4.0 profile
New Generational Garbage Collector Use mono --gc=sgen or mono-sgen to use Mono with the new GC

New Frameworks from Mono MIT X11 and Microsoft MS-PL/Apache2: ASP.NET 4.0
Parallel Framework: including PLINQ.
System.XAML
System.Dynamic
Managed Extensibility Framework
ASP.NET MVC 2
System.Data.Services.Client (OData client framework)
WCF Routing
.NET 4.0's CodeContracts

Performance: Large performance improvements
LLVM support has graduated to stable Use mono-llvm command to run your server loads with the LLVM backend

Version 2.0 of the embedding API
Removed the 1.1 profile and various deprecated libraries.
OpenBSD support integrated
Mono no longer depends on GLIB
Threadpool exception behavior .NET 2.0
更详细的说明参看：Mono 2.8 Release Notes，我在OpenSuse 11.3安装了下，很顺利就更新到了Mono 2.8，附安装的日志：

linux-4ugu:~> su
Password:
linux-4ugu:/home/geffzhang # zypper addrepo http://ftp.novell.com/pub/mono/download-stable/openSUSE_11.3 mono-stable
Adding repository 'mono-stable' [done]
Repository named 'mono-stable' already exists. Please use another alias.
linux-4ugu:/home/geffzhang # zypper refresh --repo mono-stable
Repository 'mono-stable' is up to date.
Specified repositories have been refreshed.
linux-4ugu:/home/geffzhang # zypper dist-upgrade --repo mono-stable
Loading repository data...
Reading installed packages...
Computing distribution upgrade...

The following NEW packages are going to be installed:
  libmono-2_0-1 libmono-llvm0 mono-mvc

The following package is going to be REMOVED:
  mono-jscript

The following packages are going to be upgraded:
  apache2-mod_mono art-sharp2 gconf-sharp2 glade-sharp2 glib-sharp2 gnome-sharp2 gnome-vfs-sharp2 gtkhtml314-sharp
  gtk-sharp2 libgdiplus0 mono-addins mono-basic mono-core mono-data mono-data-oracle mono-data-sqlite mono-debugger
  mono-devel monodevelop monodevelop-debugger-gdb monodevelop-debugger-mdb monodoc-core mono-extras mono-tools
  mono-wcf mono-web mono-winforms webkit-sharp xsp

The following package is going to change vendor:
  monodevelop  obs://build.opensuse.org/Mono -> Novell, Inc.