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eXo Platform 3.5's Upgrade Framework is used to migrate existing data from eXo Platform 3.0 to 3.5.
A plugin is a .jar file which is used for performing a specific task, especially for modifying the old data so that they are matched or compatible with the new structure.
Plugins can be enabled/disabled via $PLATFORM-3.5-TOMCAT_HOME/gatein/conf/configuration.properties. Meanwhile some of them are mandatory and must be always enabled; the others are optional and can be disabled. Also, plugins should also be disabled if you do not use certain features, such as Collaboration, Knowledge, Social, in your project.
To enable or disable a plugin, set the "enable" properties to "true" or "false" respectively, for example:
commons.upgrade.UpgradeVotingNodeTypePlugin.enable=true
When not specified, the plugins will be enabled by default.
This section shows a list of eXo Platform 3.5 upgrade plugins.