delete battle eye folder in your game folder, verify cache in steam, it will re download it, open game choose server it will then connect it will then close dayz down, update battle eye then reopen dayz then it works.

Same here. Huge FPS drop (from 50 to 7 FPS) and buildings stops rendering. Cache verifying doesn't help (all files validated successfully). 0.53 pdate works fine. I am using AMD R9 280 3GB graphics card, I5 2500k CPU, 8GB RAM, WIN 7 64-bit. All drivers are up to date.

Deleting all launch options fixed rendering problem for me.

Hello Gharan and thank you for the report.
We are aware of these issues, #0021672 has been fixed internally and should be fixed with the upcoming update. As for the #0017013 ,we are looking into the issue and it has been scheduled for a fix.
Regards,
Geez