What's new in 4.5:
*) ipsec - added blowfish, twofish, and camellia encryption algorithms;
*) fixed static route removing;
*) fixed DHCP client compatibility with some DHCP servers;
*) added static multi-cast route support;
*) fixed temperature monitor on RB800 and RB450G;
*) user manager - payment bug fix - now able to buy
credits without extend price specified;