I am upgrading Crowd from 2.2.7 to 2.5.1 by installing/migrating it to a new server and new DB (MYSQL) and importing the XML from the old Crowd instance. That has worked fine for a test instance. I know I need to edit my applications' (Jira, Bamboo, Confluence) atlassian-jira/WEB-INF/classes/crowd.properties files to reflect the new URL for the new Crowd instance and restart them.
Do I need to do anything else to those applications? For example, do I need to update the versions of the atlassian-jira/WEB-INF/lib/crowd<whatever>.jar files, or update plugins?