I didn't notice any huge amounts of difference between the two versions. There were changes in the administration panel. I wouldn't rush out to purchase it but, if you have a maint. contract then it should be free. If you decide to take the jump, then you will want to do a manual uninstall of 7.6 before you load 8.0 on the server. I didn't and had major issues until I did a complete uninstall of the Server AV.