Hello plugin authors!
We will have a maintenance window for the plugins SVN repository from August 31, 20:30 UTC through September 01, 00:30 UTC (four hours total). During this time, plugin authors will not be able to commit to the SVN repository.
This post on the WordPress.org status page will be updated when the maintenance window is complete.
Edit: Maintenance has been completed, and the plugins SVN is available for commit once again.