I am looking into Sharepoint 2010 currently and it seems to me the workflow engine being used is based on WWF 3.5. I wonder if it's a good idea to do this as WWF has been gone through dramatic changes with version 4. I wonder if the investments would be save.
A:
From Improvements in SharePoint 2010 dated Nov 2009:
It should be noted that SharePoint 2010 requires .NET Framework 3.5. The next version of the .NET Framework 4.0 is currently in development but product timelines meant SharePoint 2010 was not dependent on it.
Hence the workflows in SPS2010 are built on top of Windows Workflows for .NET 3.5 and not .NET 4.0.
Mr Roys
2010-05-16 08:57:09
I knew SP 2010 is based on .NET 3.5 but woud you bet on the Workflow part?
mbr
2010-05-18 13:18:28
I remember reading it somewhere while working on SPS2010 a while back, let me find it and update this.
Mr Roys
2010-05-18 14:13:55
Well, couldn't find the exact link but this diagram at the official SPS2010 documentation site @ http://msdn.microsoft.com/en-us/library/ee557253(v=office.14).aspx pretty much sums it up.
Mr Roys
2010-05-18 14:41:15
A:
WF in .NET 3.X and WF in .NET 4 are both powerful workflow platforms. The workflow platform in SharePoint 2007 was based on .NET 3.0 and hence bringing forth that support into SharePoint 2010 brings a proven workflow engine to excute SharePoint hosted workflows.
The timing of the release of .NET 4 simply didn't allow for it to be baked into SharePoint 2010.
ahmedel
2010-05-19 03:15:09
not really a direct answer to my question but I get it. Architecture it the stuff that is hard to change and I am afraid that Sharepoint 2010 suggests .NET4 as does VS2010 and you end up investing in WWF3 which has been changed a lot in .NET4. But at the end of the day it is an individual decision. Thanx for all the contributions.
mbr
2010-05-28 11:40:37