Steps to reproduce:
1- Startup portal 6.1GA2
2- Add calendar portlet to one page
3- Upgrade the portal to 6.2
4- Deploy calendar plugin
After loading the page, the following message is displayed: "This portlet has been undeployed. Please redeploy it or remove it from the page." and the calendar portlet is not visualized.
Beside this, the portletpreferences records related to the calendar portlet keep the old portletId (8) instead the new one (1_WAR_calendarportlet)
So, have we implemented something to take into account this? Did I miss one step during the process?