Are you running our Installer plugin? It should notify you when new versions are available:
http://wp-types.com/documentation/installation/#2
In case it's not working, in addition to open another support ticket about it, you can deactivate, delete and upload the new version without problems.No data will be erased.
You can be up to date with our releases if you subscribe to our blog:
http://wp-types.com/category/blog/
Regards,
Juan de Paco