Next week’s scheduled maintenance will occur on Tuesday, July 24 from 2AM CDT to 6AM CDT. Star Wars: The Old Republic servers will be down during this period and when they come back up, players will have to download a patch.
This weekly maintenance is done in order to make general improvements and to check performance of the game so that we can continue to provide a consistent, quality experience. Quite often (but not always) after a maintenance period there will be a patch to download. After the maintenance, please login via the launcher to download the latest patch. If your launcher was open during the maintenance, you must close and reopen it for a fresh login.
When the servers come back up, we'll have the patch notes available here. For the original post in its entirety, visit the official thread.