Note these are not any official notes - just random scribbles
Running bootstrap wont give you the latest dev versions, only whats been released on the bootstrap server by the ynput team.
Updating it from time to time is a good way to see what progress has been made in terms of addons etc. It shouldnt remove old addon version, only add the new ones. That way you can still use older addons should you need. You would need to create a new bundle to accommodate that.