The support forums on WordPress.org will be undergoing an upgrade and will be in a read-only state on September 1 between 14:00 and 20:00 UTC. More information is available on this make/meta post.
From August 31, 20:30 UTC through September 01, 00:30 UTC (four hours total), we will have a maintenance window for plugins SVN. During this time, plugin authors will not be able to commit to the SVN repository.
Edit: Maintenance has been completed, and the plugins SVN repository is available for commit once again.
On August 27, 2015 between 05:00 and 11:00 UTC, we will be performing network maintenance, which could result in a temporary outage. Keep an eye on this post (and this site) for any updates.
07:15 UTC. Maintenance complete.
We’re currently investigating a service interruption affecting make.wordpress.org, developer.wordpress.org, wordpress.org/news, and related sites.
3:01 UTC. All sites back online.