A lil somethin somethin: You can find the details for this event on the announcement page here.

Today we want to talk about the global graphical improvements, 4K/8K game client, and artistic neuronet.
Necessary Changes The latest War Thunder vehicle and asset models are created in 4K, or even 8K resolutions, but textures of such sizes significantly increase the size of the game client. In addition, the game has a lot of content created with textures in 2K resolution, for example, some of the aircraft with which War Thunder began its journey back in 2012. But as time goes by, monitor resolutions, hard drive sizes and internet speeds grow, so we want to make the game look better. We are introducing a new ULTRA HD texture pack that brings a higher resolution to War Thunder that meets the standards of modern games. It's time to change for the better, and we are taking this step in the next update of the game!
Game client... Read more