This past weekend I posted updates to the Complete Guide to the Nikon D6 and the Complete Guide to the Nikon Z8.
The D6 update fixes all known errata in the original version and adds to and clarifies a few sections of the book.
The Z8 update brings that ebook up to date with Nikon's C2.00 firmware update, which means that it documents Pixel shift shooting and Auto capture, as well as rework all of the customization bits that Nikon changed.
Automated messages were sent via email to all owners of the books. If you don't think you got one, check your Spam/Junk folder. Also, make sure my server's email (client@e-junkie.com) is marked as "not spam" or is in your contact list.