I tried to upgrade from 3.0.0.CR1 to 3.0.0.CR4. However, @SeamManaged is missing in the package org.jboss.seam.persistence, although it is still mentioned in the reference guide. Any hint is appreciated.
It has been renamed to ExtensionManaged, and moved to the Solder module as it is required by other Seam modules. Please update your code to use this new annotation (org.jboss.seam.solder.core.ExtensionManager).