Where can I find the new safari docs?

I am working on some open source documentation genereator tools which should support pwa on apple.

I want to check whether some private apple meta tags are still supported like apple-touch-icon, I can only found some archived docs:

https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html

I searched for almost an hour but I can not find anything related to safari and it's behavior in the new documentation.

So I want to ask: do I miss anything? or apple is dropping docs for safari?

Where can I find the new safari docs?
 
 
Q