Postado originalmente por
m4d3
What's new in 5.19 (2012-Jul-16 10:51):
1) ssh - added /ip ssh regenerate-host-key which will regenerate current host key;
2) dhcpv6 client - fix multiple advertise handling;
3) snmp - fix v3 engineID discovery;
4) fix ticking sound on RB411UAHL;
5) user manager - fixed byte to KiB, MiB and GiB conversion(digit after decimal point was incorectly calculated);
6) fix routerboard firmware upgrade on RB951-2n;
7) sniffer/torch + simple queues sometimes could crash router;
http://www.mikrotik.com/download.html