Apple announces public beta releases?

Hi guys,

Is there any official site where Apple officially announces public beta releases?

I know that I can get information on forums and sites or occasionally check for updates if I have installed beta profiles before, but I am looking for a site similar like this: https://developer.apple.com/news/releases/

So far I could not find any similar sites that officially announce public betas directly from Apple at least!

Thanks for your help!