Update: Pressbooks-4 experienced a 33 second service interruption as part of scheduled maintenance on Thursday, September 12 between 3:11am and 3:12am Eastern. Maintenance was complete by 3:12am.
Original: Scheduled Maintenance for Pressbooks-4 will occur on Thursday, September 12 from 3:00am to 5:00am Eastern. Upon completion of the scheduled upgrade we will post a status update to https://status.pressbooks.com.