I am part of a team wanting to upgrade from alfresco enterprise 3.3 to alfresco enterprise 5.2. The upgrade path for 3.3 to 5.2 says that we need to first upgrade to 4.2 and then to 5.1 before going to 5.2. Is the step from 4.2 to 5.1 required as somewhere else I read that you can go directly from 4.2 to 5.2. Thanks.
Each step introduces different changes in the database schema and it applies several patches. The complexity may depend on your starting version. I would say it is not an extra step, just the recommended step.