Updates plugin is available only in Community Edition. If you'd like to see it in action, you can setup your own Community Edition instance.
This plugin lets you automatically update your Countly Community instance to the latest master branch from Github.
It should be noted that master branch does not always contain production ready code, thus this plugin should only be used only if you are sure that current master branch is stable (e.g. just after a release) or you want to see the latest developments in Countly in a non-production environment.