https://www.pcgamer.com/world-of-tanks-is-cancelling-april-fools-day-and-going-back-in-time-instead/

Microsoft isn't the only company swearing off mischief this April Fools' Day. Wargaming is promising that World of Tanks will be bullshit-free on April 1, though it's still got plans. Players will optionally get to take a trip back to the game as it was in 2011 with World of Tanks Classic. 

Starting today, Wargaming has kicked World of Tanks back in time, just in case you were longing for the 'good old days'. World of Tanks has had countless updates and a massive overhaul since 2011, so expect things to be pretty different.