WoT Blitz – tank anniversary feature

In WoT Blitz, a new feature called “tank anniversary” appeared. Each tank in your garage has its “birthday” on the date of purchase. Every 3 months (precisely, every 91 days) the tank has an “anniversary”.
There are the following bonuses connected to this:
– x5 to first victory of the day
– x2 credit income
– bonus is available for one-time use only and expires after 3 days
– bonus also applies to premium vehicles