The first .NET Framework 3.5 "Orcas" CTP has been released!
The .NET Framework 3.5 brings no breaking changes. New technology is being added including LINQ, AJAX, WF, WCF and WPF Developer Tools and BCL Enhancements. The release will ship with Visual Studio codename "Orcas" and will also be available for download from MSDN.
For Rules you will find the following enhancements -
1. Runtime and parser support for Extension methods (introduced in C# 3.0)
2. Operator Overloading
3. Support for new() operator to create objects and arrays