The next version of .NET, 4.0 is nearby, so i try to cover all the new features showing up in the language space as well as other important things. I will put up links to different posts + important videos one should watch. The most exciting addition to .NET is DLR ( Dynamic Language Runtime ) which is hosted on top of CLR & adds functionality that brings several dynamic languages to .NET Platform as well, e.g. IronPython, IronRuby are already being in progress by Microsoft team & many more. So lets begin upon what's new in C# 4.0 and how DLR helps in achieving that :

C# v4.0

The most popular language on .NET platform continues to evolve under the supervision of Anders Hejlsberg, after adding several functional constructs & the popular LINQ support in v3.0, its time for some dynamic flavor & making office development easy. New Features can be categorized as:

1. Dynamic Lookup,
2. Named & Optional Parameters,
3. COM Interop,
4. Covariance & Contravariance

• [VIDEO] The Future of C#, PDC 2008 session by Anders Hejlsberg => http://channel9.msdn.com/pdc2008/TL16/
• [VIDEO] Expert to Expert: Erik Meijer and Anders Hejlsberg - The Future of C#
• [VIDEO] C# 4.0 - Questions and reasons behind the answers with Anders Hejlsberg
• [VIDEO] Going Deep: Inside C# 4.0 => http://channel9.msdn.com/shows/Going+Deep/Inside-C-40-dynamic-type-optional-parameters-more-COM-friendly/
• [DOC] An excellent white paper on C# 4.0 language features => http://code.msdn.microsoft.com/Project/Download/FileDownload.aspx?ProjectName=csharpfuture&DownloadId=3550
• Posts on each new feature by the C# team member => http://blogs.msdn.com/samng/default.aspx
• Covariance & Contravariance, detailed posts on Eric Lippert’s Blog => http://blogs.msdn.com/ericlippert/archive/tags/Covariance+and+Contravariance/default.aspx

Try out Visual Studio 2010 Beta 1 => http://www.microsoft.com/visualstudio/en-us/products/2010/default.mspx and C# 4.0 Samples from here => http://code.msdn.microsoft.com/Project/Download/FileDownload.aspx?ProjectName=csharpfuture&DownloadId=5822.

I will post more stuff & links in the next part. #CHEERS#