What's new in 5.6 (2011-Aug-02 14:45):

*) ipsec - fix a problem which could silently remove a manual policy
    from the kernel if the peer configuration has 'generate-policy' set to 'yes'
    and if the policy matches with the traffic selector of a SA being removed
    on the responder side, also fix a problem that some generated policies
    may stay in kernel after relevant SA was removed;
*) profiler - correctly show idle task on RB1200;
*) webfig - fix dual nstreme interface setting lists;
*) webfig - fix Wireless Access/Connect List editing;
*) webfig - fix bitrate presentation in simple queues (show 1.5M as 1500k);
*) fixed micro-sd access on RB400 not to stop everything else;
*) sstp - when server certificate verification is enabled for sstp client,
    it will additionally compare IP addresses found in certificate's
    subjectAltName and subject CN to the real address, DNS names are ignored;
*) tftp - optional block counter roll-over support;
*) hotspot - fixed possible crash in case of multiple Radius CoA requests;
*) userman - speedup user deletion with big log size,
    note that first userman startup after this update
    may take few minutes if the log size is in hundreds of MB;
*) mpls - added support for enabling/disabling control word usage for
   BGP based VPLS tunnels (both - Cisco and RFC 4761 based);
*) mpls - added support for auto-discovery of VPLS NLRI encoding method
   for Cisco BGP based VPLS tunnels;
*) winbox - sometimes after disconnecting, winbox could not connect back;
*) gre,ipip tunnels - new dscp parameter (0..63 or inherit);
*) ping - new dscp parameter;