Download the new RouterOS 6.10 release over the torrent network: http://www.mikrotik.com/download/routeros-ALL-6.10.torrent
Otherwise please visit http://www.mikrotik.com/download to pick exact version!

6.10 changelog:

*) fix autosupout.rif generation after kernel panic;
*) ovpn - make it work again;
*) ovpn client - remove cipher=any & auth=any options, protocol does not support them;
*) pptp - fixed where Windows & MacOS clients were disconnecting all the time;
*) sstp - make it work with Windows client with AES encryption;
*) ipv6 pool - fix dynamic prefix disappearing which may influence large VPNs with IPv6;
*) ssh client - fix key agreement when sometimes wrong DH algorithm was selected;
*) bgp - multipath eBGP now does not propagate BGP nexthop unless forced in configuration;
*) removed 10/100 half duplex from autonegotiation advertisement on CCR;