I'm using 1.34WW-version, because I remember, that some earlier EU-FW's had problems with Windows 7's UPnP. How is this latest version? I don't have any problem with this 1.34WW-version (for example, current uptime is 50 days and it would be more, but I unplugged it at thunderstorms). So I really don't see much reason to try anything newer, if there isn't something to make it worthwhile...