Update 30 October 2016
Update 30 October 2016: I'm sorry for very long delay. Being a university student make my free time lower considerably. Anyway, new device tarball is released in stable and rc-proposed channel. This version mostly contains minor fixes, but more importantly, this includes fixes for some famous vulnerability, including the Quadrooter and dirty CoW vulnerabilities. Go to "System Settings" to get your update, or follow instructions below if you haven't update your phone since 9 January 2016.
I still ship experimental fixes in rc-proposed that may freeze your phone when the screen is off. If this matters to you, you may consider using stable channel for now, but that has pretty bad power consumption (but that still means about one day of light usage). Also, there is known bug about mobile network not usable on some network that affects all channels.
Oh, and for those stay on absolute bleeding edge on devel-proposed channel, I currently don't have enough time to test that. So, no release to devel-proposed just yet. Sorry!