Currently with the NervesHub update system, there are the following channels:

Channel	Deployed by…	When…	Notes
stable	CircleCI	The master branch of FBOS is pushed.	Should be considered consumer ready.
staging	CircleCI	The staging branch of FBOS is pushed.	Should be considered almost consumer-ready, but expect bugs.
beta	CircleCI	The beta branch of FBOS is pushed.	Should be considered broken and should not be used by consumers.