What is stable version of .NET

Question

Hi Is .NET 4.0 stable version for WinForms and WPF development? Actually we have some .NET WinForm applications working under .NET 2.0 with SQL Server 2008 database on XYZ machine. We want to upgrade 1 vb6 application to .NET. Probably we will use the .NET 3.5 OR 4.0 version and application will be developed using WinForms/WPF. So if we install .NET 3.5/4.0 on this XYZ machine then will it cause any problem to our SQL 2008 database .NET 2.0 and applications running under .NET 2.0 ? Please let me know if any one has idea about this OR want to alert me. Thanks and Regards Prasad

Vulpes · Answer

Yes .NET 4.0 (VS 2010) certainly is a stable version and work on the next version (4.5) is well under way with an early preview of VS 2011 already available. VS 2010 is compatible with SQL Server 2008 and is able to target all versions of .NET from 2.0 to 4.0 inclusive. Applications written under all of these can co-exist and run on the same machine.