For previous release see Upgrade to Minyaa 3.1.1
This release does not provide special Upgrade Task.
For the migration to JIRA 4.4, this release has required small patches in the Project configuration in order to be able to use the extension done by Minyaa with Custom Permission and Extended Notification type.
You will have to copy into jira-home\plugins\installed-plugins the patched release of this plugin