Not sure if you noticed, it appears that the desktop version of IE 10 on Windows 8 Consumer Preview got an option that allows the browser to update itself automatically when there are updates related to it automatically.
Go to About page in IE 10 on desktop, and you can turn on/off the auto update settings there.
But you don’t get the same in IE 10 metro version. I guess Metro App has its own update to go through, through the App Store maybe.
Having an auto update option in IE is a welcome long due feature that not only keeps your browser always up-to-date but can also keep you out of the update cycle if you wish not update so often.
[hat tip to Within Windows]