Updates to the text of each of the Full Stop camera guides can be found here:

http://blog.dojoklo.com/ebooks/full-stop-e-book-updates/

On that page, you will also find the link where you can sign up to be informed of updates to the Full Stop book that you purchased, and be eligible to receive a free updated e-book copy if any significant updates are made. Or if you wish, you can go directly to the Mailchimp camera guide update sign-up form here:

Full Stop Updates Form on Mailchimp