Hi Brian
The latest version is now 2.0.4. If you customize the layout of the extension before using template override, you might have to redo these customization based on the code of latest version
If you haven't made any modification to the code of the extension, feel free to upgrade, It will work well and all of your old data will be kept
Also, please make sure to backup your site before upgrade so that in case something wrong, you can rollback
Regards,
Tuan