For RU: November 8 we will release a small update. The servers will be unavailable from 6:00 to 6:45 (MST).
For EU: The World of Tanks servers will be unavailable on 08.11.2017 from 05:00 – 05:45 CET due to this update.
NA have nothing posted.
The only content note is : The update will fix some technical problems.
Heres hoping they get it right this time.