As some of you will have noticed last week, we did not in fact roll out 1.5.15 to the entire grid. In order to tests its stability we released it to a select group of simulators. We have seen no problems and are confident this patch is ready for a wider release.
As was mentioned last week, we will be releasing patch 1.5.15, a server only release, using the rolling update methodology. In other words, there is no planned global downtime for this patch as it will be 'rolled' out to each individual server one at a time. Each individual simulator may experience a brief downtime. Sorry for any inconvenience this will cause.
Once again: The primary purpose of this patch is to update the simulators with minor infrastructure changes necessary for the deployment of release 1.6.
Please be on the lookout for more information on 1.6!
Chris