It's breaking now that Games Workshop 40k erratas and datasheets are being updated for the digital versions now. As of this moment there are no pdfs on the GW website that are updated yet, but it seems this is all a matter of time at this point. I am currently charging my tablet, (yea, its out of juice), and then I will be downloading to get some insight to what these changes are.
So if you can get them now, please let us know what you find in the comment sections. Im going to be up a little late tonight it seems.
These pics are from Plains of War Facebook.