Apple's annual WWDC is geared toward developers, but it is often the place where Apple announces some of its biggest updates. Over the years, WWDC has grown increasingly popular. Tickets to WWDC 2013, for instance, sold out in just a few minutes. As Apple has grown, so has the importance, and again, popularity of WWDC. That said, here is a ranking of the most important WWDC events over the last 11 years.
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