Apple unveiled iOS 8, OS X Yosemite, and slew of new apps and features to go along with them this morning during a keynote presentation kicking off its 2014 Worldwide Developers Conference. Developers, journalists, and industry observers turned out in droves for the event, which had CEO Tim Cook and other top executives out on stage introducing Apple's latest software. We were there documenting the presentation live in text and photos, and you can see some of the keynote's best moments below.

Photos by David Pierce, Josh Lowensohn, and Dieter Bohn.