In the event that you want to install a soft released update to your Sophos UTM appliance before it has been picked up by auto update, you must download and install the patch manually. There is no way to do this in the GUI (yet.) Procedure taken from this helpful post (thanks, heartbleed!)
- Shell into the firewall and navigate to /var/up2date/sys
- wget the patch file (.tgz.gpg extension)
- Invoke auisys.plx with the –showdesc paramater
- Install the update.
cc system_up2date system_update
Alternatively you can go into the web interface and schedule the install from there.