What's new in 2.9.27:
*) added WISPr Radius attribute support to hotspot;
*) fixed booter setting damaging on MIPS based routerboards,
bug was introduced in 2.9.18;
*) fixed hotspot to handle lost leases in a more graceful way;
*) changed serial terminal prefix key to Ctrl-A;
*) fixed special-login;
*) fixed Interface column in WinBox VRRP Table;
*) fixed BGP connection establishment when router ID is not explicitly set;
*) changed webproxy-test logging topics from "webproxy,info" to
"webproxy,account";
*) ppp client acquires serial port only when dialing in, not immediately;
*) improved vrrp gratuitous arp sending, fixed vrrp enable/disable bug
*) added support for Novatel U740 (Wireless HSDPA Modem);
*) fixed NTLM authentication in webproxy-test;
*) fixed default route distribution in OSPF;
*) fixed graphing bug related to periodic hard disk writes;