This plugin adds notifications which are missing in the pure Redmine. In particular, they are: news added for non members, new version released, new file added for non-members, new Wiki page added, code comitted to repository, new issue added and issue closed for non members, new forum added etc...
Subscription approach is different from watching approach as it allows non-members to be notified about new objects while watching allows to be notified about existing objects. To simplify the subscription process the plugin adds a form to corresponding project pages.
Author: Andriy Lesyuk