Just checked this while I was migrating my hive-engine node to a new machine and spotted this line below that doesn't make sense anymore. At no point in the guide does it mention any step where you would need to edit version number, is it missing a git checkout branch line ?
Now if you are following this guide at a point when 1.1 is old, just replace it with the name of the branch of the latest release.
git checkout hive-engineis mentioned in the guide. That branch is kept up to date so no need to checkout a specific version unless you want it for some reason.