I upgrade from liferay 5.2.3 to 6.0.6 , it was successfully done without any error left; but when I upgrade from 6.0.6 to 6.1.0 GA1 portlets are removed from the pages as they were on pages in liferay 5.2.3 and in 6.0.6, I am asking for the liferay portlets like web content display etc.
Anyone has any idea?