One of the great things about Apple's customer facing website is the length of effort and detail that is put into the product pages for individual device. Not only do the pages for the iPad Air 2, or the iPhone 6s for example, show high-resolution beautiful gallery images of the hardware, but they also go into a fair amount of detail on the included technical specifications so consumers know exactly what they are getting. It's rare that information on this page changes, after all, a specification is a specification, but at some point in the last two weeks Apple has silent updated the Bluetooth specification against a number of iOS devices.