So I have a public beta profile installed. Will I need it tomorrow after the event in order for me to be able to install the GM? I’m currently sitting on the latest PB..
I would keep it installed until after the GM is released publicly. In the past Apple has issued updated GM candidates between the keynote and general release the following week. Last year, I believe they removed the ability to download the beta profile from the beta.apple.com site after the keynote (though I could be remembering incorrectly, but I think some people had issues with not being able to access the beta profile who just wanted the GM).