What's new in 6.33.6 (2016-Jan-28 12):
*) winbox - show properly route-distinguisher for bgp vpn4;
*) winbox - show dhcp server name in dhcp leases;
*) ppp - make CoA work correctly with address-lists;
*) winbox - fixed tab names to correspond to console;
*) winbox - show only actual switch-cpu ports in switch setting combobox;
*) winbox/webfig - fixed version column ordering in ip neighbors list;
*) webfig - fixed switch port "default vlan id" has missing "auto" value;
*) webfig - fixed firewall connection-bytes option;
*) ipsec - fixed kernel failure after underlying tunnel has been disabled/enabled;
*) romon - allow to see device identity if it is longer than 31 character;
*) fastpath - show fp counters in /interface monitor aggregate;
*) bridge firewall - fix chain check (broken since 6.33.2);
*) bridge firewall - fixed crash when jump rule points to disabled custom chain;
*) smb - fix crash when changing user which has open session;
*) address-list - properly remove unused address-lists from drop-downs;
*) fetch - fixed closure after 30 seconds;
*) capsman - fix radius accounting stop message;
*) log - reopen log file if deleted;
*) packing - fix tcp/udp checksums when simple packing is used;
*) tile - fix ipsec freeze after SA updates;
*) upnp - fixed missing in-interface option for dynamic dst-nat rules;
*) tunnel - fix complaining about loop after ~248 days;
*) vrrp - make sure that VRRP gets state on bootup;
*) ppp - fixed rare kernel crash (introduced in v6.33);
*) ppp - do not allow empty name ppp secrets;
*) ssh - fix active user accounting.