Hi MikroTik,
There's a 5 year old thread over here in Wireless Networking regarding 802.11w compatibility: viewtopic.php?t=108923
Deauth attacks are becoming a common problem, and can be prevented by implementing Management Frame Protection.
Thank you for releasing 7.1beta4, I'm about to netinstall it on my hAP Lite and start testing deauth attacks using the following https://github.com/SpacehuhnTech/esp8266_deauther and a esp8266 NodeMCU.