Do I need to re-paste the live chat code after Comm100 Live Chat is updated?

In most situations, no.

Comm100 Live Chat is updated automatically. You can directly use the new features added into the updated version without re-pasting your live chat code. If for any reason it is required to update the live chat code we will notify add admins with Email and Popups and all agents via popups. 

Check out all Comm100 Live Chat features.