Don't expect to see the update right away. It's deploying to the basic 2014 Kindle, the Paperwhite (both 2013 and 2015) and the Voyage in the days ahead, so it may take a while before you're getting Amazon's fresher take on digital literature. Some of these concepts aren't completely new (Kobo has had a few of these elements for a while), but they're welcome on what's arguably the de facto e-reader for many bookworms.