Amazon has now flicked the switch which makes the updated Kindle eBook edition of Steal from the Devil available for existing customers to download to their devices.
Regardless of whether you use a Kindle, tablet, or app, you can get the updated version by visiting the "Manage My Kindle" page for your Amazon region.
UK Customers: https://www.amazon.co.uk/myk
USA Customers: https://www.amazon.com/mn/dcw/myx.html
The update tweaks the front and back matter, and adds an excerpt from the second volume, List of the Dead.