LOTRO Community Manager, Andy “Frelorn” Cataldo, posted a notice on the forums about upcoming server downtime:
The LOTRO Game Servers and http://myaccount.turbine.com will be offline for maintenance on Monday, July 27th from 3:00AM to 12:00PM Eastern (-4 GMT). The forums will remain up, but players may not be able to log in. Thanks for your patience, and we’ll see you back in the game soon!
This is maintenance only, so no updates are being made to the game.