I've been trying to find official requirements for Silverlight 4.0, but can't seem to find anything.
What I want to know is if VS2008 supports Silverlight 4.0, or if I need to upgrade to VS2010.
The only mention I could find was on this Silverlight forum: http://forums.silverlight.net/forums/p/156538/350841.aspx
Does anyone know of an official link?
You can't use Silverlight 4 with Visual Studio 2008.
Silverlight.net only mentions Visual Studio 2010
As does the Silverlight page on microsoft.com.
I pretty sure you require Visual Studio 2010 to use Silverlight 4. I was using 3 and had to install VS2010 to use Silverlight 4. There are no SL4 tools in VS2008.
Notice no mention of VS2008: http://www.silverlight.net/getstarted/
Link to tools also with no mention or links to alternate downloads: http://www.microsoft.com/downloads/details.aspx?familyid=68A158AF-9BB8-4855-A724-D09D196EAAF3&displaylang=en
On the Silverlight forums asking to build SL4 in VS2008: http://forums.silverlight.net/forums/t/150762.aspx
Also, Microsoft I am sure wants to provide as many reasons as possible to get developers to upgrade to VS2010. Silverlight 4 is one of them.
Due to the fact that there was no support for SL4 in VS2008 whilst it was in beta, I don't think it will ever be available.