Amazon’s Kindle line of e-readers have begun receiving an update which adds some new features. The e-readers will now be able to add the current book being read as the lock screen. The new feature applies to certain Kindle, Paperwhite, Kindle Oasis, and Kindle Voyage models. The much-awaited feature has been demanded by Kindle users for more than a decade. Users can find the new option under ‘Device Options’ in settings.