Upgraded to 6.39rc17, and (as expected based on the changelog) it still works fine 
What’s new in 6.39rc17 (2017-Jan-23 16:30):
*) capsman - added save-channel option to speed up frequency selection on CAPsMAN restart;
*) capsman - added support for static virtual interfaces on CAP;
*) dude - (changes discussed here: http://forum.mikrotik.com/t/the-dude-v6-39rc-test-builds/104888/1);
*) hotspot - fixed rare kernel crash on multicore systems;
*) ike2 - default to /32 peer address mask;
*) ike2 - fixed EAP message length;
*) ike2 - update calling_station_id radius attribute;
*) ike2 - update radius attributes;
*) ipsec - better responder flag calculator for console;
*) ipsec - hide sa-addrs for transport policies;
*) wireless - apply broadcast bit to DHCP requests when using station-pseudobridge mode;
*) wireless - update Thailand country frequency settings;