I need to configure GreenHooper in JIRA. I've downloaded JIRA 5.2.4.1 and configure it in local server. When I try to get GreenHooper, I go to Find a new Add-on from plugin menu. First it shows me message This version of JIRA is unknown to the plugin information server. It may be too new to appear, or it may be some type of non-standard build. No plugins can be found for unknown product versions..
Also, I'm unable to locate the Universal Plugin Manager anywhere in Administrator page. I've read it is default added in new version of JIRA but unable to find it.