SVN Notifier is the best menu bar app to
monitor your Subversion project repositories for changes. SVN Notifier will always notify you about the latest commits
to the repositories, so that you can always update to the latest version right away.
SVN Notifier notifies you about the latest commits to your repositories using the Notification Center in OS X Mountain Lion and Growl in previous Mac OS X versions.
This app also provides you with a list of the outdated repositories in case you've missed the notifications. This list will keep it's items until you've updated the repository to the latest version.
More features will be added soon.