Same problem here, the docs are about two years out of date except a few typo fixes and frankly a complete and utter mess for devs without years of ST experience. New features and capabilities trickle out to external developers through snippets of code and random comments in community posts from ST engineers and devs with inside connections. And it’s the worst of both world, closed source so you can’t access it but since you’re not paying you can’t demand structure or timely updates either. Pretty much useless.
My guess is they’re prepping for a new way of writing DTHs and have been for a while(*), and that is why most updates appear undocumented and behind the scenes. Probably tied to the new half-baked APIs for webhooks and the new dev site. Alternatively, they’re just slowly becoming insanely bad at this and if this is the case I see the Mozilla Thing Gateway quickly taking over. It’s at the Helo Worlld stage now, but depending on what Samsung intends to do with the hobby developer crowd going forward that could quickly change.
Random post for you to look at for more info on conf/refresh:
OK
*) https://smartthings.developer.samsung.com/develop/workspace/ide/create-a-new-hub-connected-profile.html
Nice form to fill out btw.