It used to be that a company would introduce a brand-new product, and that product would have a shelf-life of several years before it received a major revision or redesign. That practice is quickly evaporating, perhaps because of the magical interweb's ability to generate nearly instantaneous feedback and opinion. Products that were all new in the very recent past, are all new all over again in very short order. We’ve seen bikes that were brand new in 2010 undergoing a complete redesign for 2011. Campy—a company usually known for a conservative product development schedule—launched Super Record 11 for the 2009 model year. For 2011, it’s essentially an all-new group under the skin.
Shown: Campagnolo Super Record 11 rear derailleur