Most pages are for version 0.11 or 0.12 already, and not much changed between the two versions besides the assets, if you already have a game written in 0.11. Together with the release notes, you'll survive :)
The cheat book is written for some smeared set of versions since it's inception. It is out of date for 0.11 as well. The effort to keep it up to date is somewhat low since Bevy changes so much an so often in its current development.
Most pages are for version 0.11 or 0.12 already, and not much changed between the two versions besides the assets, if you already have a game written in 0.11. Together with the release notes, you'll survive :)