What are these minipatches with no notes?

About 03:30 US Eastern time/07:30 GMT 11 July

-WT running smoothly all previous day
-“Connection to server lost”
-Quit War Thunder
-There’s a small update
-No notes
-Update and relaunch
-UI lag/Key lag/stuttering graphics or server despite low ping and no PL and no heavy GPU strain

This has happened before. What gives…?

You can find changelog here:
https://forum.warthunder.com/tag/client-update

Please note info under every changelog:

Patch notes reflect only key changes, meaning they may not include a complete list of all improvements made. Additionally, War Thunder is constantly being updated and some changes may not require an update. Changes reflected in patch notes are formed by taking reactions and requests of the community from the bug reporting service, forums and other official platforms into account. Bug fixes and changes are implemented in order of importance, for example a game-breaking bug will be worked on and implemented sooner.

Sometimes new changelog is published with a small delay, please be patience.

If you have any technical issues and search for help, please use this section: