Smart Lighting no longer appears among Smart Apps on my Smart Things Hub v3.
I have logged out and back in. I’ve rebooted the hub, both from the Groovy IDE and by power-cycling. I still can’t see Smart Lighting in the app, the my.smartthings.com web interface, or in the Groovy IDE.
no date has been given for when support for groovy will end. Since you mentioned webcore… I should also note that will cease also when groovy support ends
I’m in the USA. If I were in a region in which it’s not available, would it have been available then become unavailable?
Irrespective of when it may be phased out in future, I have a large number of other automations that depend on a few things set by Smart Lighting (and that should, but don’t, work using tools available other ways).