The new software was not immediately available as an air update for my Kindle Colorsooft, but I could download it and <a target="_blank" rel="sponsored" href="https://www.amazon.com/gp/help/customer/display.html?nodeId=GFAE5G5UGCYA25DW&tag=theverge02-20″>install it manually following amazon's instructions. The feature works well using relatively light taps anywhere in color, and since it requires two faucets in rapid succession, it is not easy to activate by error. Unfortunately, it is limited to only one direction. You can use it to jump to the next page or move down in a long list of books. Perhaps a future update will enable triples as a way of moving up or returning to a previous page.
Although software update 5.18.1 is also available for older versions of the input level Kindle, Paperwhite, Scribe and Oasis, the new double step function is only available for color The edge.
Update, March 26: Confirmation of a amazon spokesman was added.
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