Dks01 Warzau I have been running the 18.4 Developer Beta since they came out with no issues. See the Release Notes I posted.
antdude I noticed my iPhone 12 mini’s iOS’ automatic updates were re-enabled since I had them disabled. I am the type who check, download, and start the upgrade manually. At least, iOS v18.4 told me about this after its completed upgrade’s “Hello” startup.
antdude Donoreo So 15.4 did this: turned on Apple Intelligence, Wifi and automatic updates. Did macOS warn you about turning them on too like in iPhone’s iOS?