Thanks . The code changes for steemit are all in GitHub and out in the open AFAICT. It's unclear what the deployment process is, and yes, would be good to have an end user readable change log.
I'll look into the steemit repo a bit more and see.
(Or did you mean something else by Dev hub?)
RE: Reverse bounties: how do we fund development through Steemit of different apps and features?