Companion site - errata & changes

Updates.

What's changed in the world the book describes, since the book went to press. Listed newest first.

First edition, going to press.

May 2026

No updates yet. This page exists so future-you knows to check it. New entries will appear here when:

A tool listed in Appendix B changes its name, price, or login URL.
A factual claim in the book turns out to need correcting.
A new product replaces one the book recommends.

Updates do not change the printed book - if you bought the paperback in May 2026, you still own the May 2026 edition. Any substantive correction will appear in the second printing.