CustomUpgradeAction Element (Feature)
Specifies custom Feature upgrade actions.
Last modified: October 09, 2013
Applies to: SharePoint Foundation 2013 | SharePoint Server 2013
This element references custom code that calls SharePoint's server object model. For that reason it cannot be used when the Feature that is being upgraded is inside an app for SharePoint.
<CustomUpgradeAction Name = string> <Parameters> <Parameter /> </Parameters> </CustomUpgradeAction>