This document contains notes on upgrading an existing Crowd installation to Crowd 1.6. You can see the features of this release in the Crowd 1.6 Release Notes.
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Crowd 1.6 provides event-based caching updates for some LDAP directories. You may wish to enable it for better performance with client applications such as JIRA. As there are some important limitations to be aware of, please read the documentation before enabling it for your directory.
To upgrade to Crowd 1.6.x from 1.5.x or earlier, please follow these upgrade instructions.