From 18:00 GMT on June 11th to 12:00 GMT on June 12th

The DEV Server with patch 1.41.26.X will be available

Download instalation program for DEV Server HERE

• Arcade aircraft-tank mixed battles are now available
• New ground vehicle location “Carpathian mountains”
• Network connection has been optimized (traffic reduced).
• Added crew on open vehicle.

PLEASE NOTE: That patch 1.41.26.Х is not a major update, but needs additional testing since a brings a lot of changes in it.

Read preliminary patch notes and discuss it here