dubster,

I don't think you can really expect the author to have a crystal ball. He will not know what features/enhancements/changes are included in any new release until after it is released. Then, testing will be done on the new release and generally you'd need to get to know the software inside out before you can write a guide for it. As such, there will definitely be a somewhat lengthy time lag between updates to the guide, on technical grounds. I believe that the author does mention that an update is in the works.

On economic grounds, you can only update and reprint every so often and remain profitable. This is not on the NYT bestseller list. He doesn't have "over a million copies sold". Sales volumes are not that high and production and printing cost need to be spread over a lower quantity.

My advice is to recognize this guide for what it is: an excellent tool that enables you to maximize your Pronto's usefulness to you, despite a few differences with the very latest release here and there. Be patient and take the time to familiarize yourself with PPENG and the guide a little bit, and then judge what the guide can do for you.