Documentation about MediaExtension framework vanished

A while ago there was documentation published about the apparently upcoming MediaExtension Framework that was announced to be included in macOS 14 (Sonoma).

However, when I recently tried to look it up again, I noticed that all documentation about it now leads to "Not found" pages, even though it still appears in search results.

https://developer.apple.com/documentation/mediaextension/

Was this accidentally unpublished or will it not be included in macOS 14 and was therefore removed from the documentation?

Documentation about MediaExtension framework vanished
 
 
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