Now I have my boxes back, I can test. This is a good release, Web interface is working OK on H.264 4.2.2. Blind scan is good, the only niggle is I get the occasional reboot after a channel change, it even did it after finishing a blind scan, no real pattern to it. Much better than the old kernel 3.5.5 releases.
We were recently able to reproduce the rebooting issue which only happens occasionally as you reported. It seems to be caused when the receiver attempts to scan EPG data in the background on certain specific channels.A temporary fix until a future firmware update is released to resolve this issue is to disable background EPG scanning by going to:System settings --> Extended settings -> Epg and change EPG scan to off