Upgrading Content Types in SharePoint 2010

When you created Content Types solution in Visual Studio 2008 / SharePoint 2007 you very soon run into trouble when you were going to upgrade these content types with new fields. Code had to be writte :-)

This has now changed, and you will be able to to the same by adding the changes to the feature manifest:

The PushDown attribute on the AddContentTypeField action in the UpgradeActions element does the trick.

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