Just updated to Mojave. I am a heavy iMessage user using the Messages app on my MacBook. I like to 'close' my windows for all my apps running and Mail and Messages would still run (black dot indicator below app icon on dock) in the background and when a new message arrived, I'd click Messages app and the app would pop up right away. Now in Mojave I have noticed when you close the Messages window, the app actually quits so when you go to read a new message, the app opens up first (app icon bounces on dock a few times before opening) which just takes a few seconds rather than instant. Anyone else noticing this changed behaviour?