Updating Add-Ons
Even easier than installing add-ons.
You should find that updating an add-on is a simple process. What follows is how most add-on updates will work, but always consult the add-on’s documentation for any specifics.
Install the Update
Grab the named folder in the updated add-on’s _add-ons
folder and drag it into your site’s _add-ons
folder.
You’ll probably be alerted that that folder already exists, and will be asked what to do.
Replace it, and you’re done.
Check for Configuration Updates
If the add-on has a configuration file, double-check to make sure there aren’t any new settings that you should add to your copy. Not updating your settings shouldn’t break your add-on, but again, read the documentation.