Upgrade hassle

This is a tiny peeve. As I’ve written before I quite like using iTunes to manage my music—enough that I’m on a long migratory path from various flavors of Linux, back to Windows, on my way toward a someday-Mac.

iTunes seems like a reasonably sophisticated application, and is self-aware enough that it can inform me when a software update is available. So why is it that in order to install an update for iTunes, I have to exit, switch to my web browser, download and run an installer, and re-agree to various license agreements? Is updating iTunes similarly cumbersome on the Mac?