You can find the latest build of Prompto in your Management portal under the "Download" Section.
When a new version of Prompto is released you will get a message within the program so there is no need to check back in the portal if you have the latest version. We take care of that for you.
If Prompto has trouble updating, please restart your computer and try again. This depends on the configuration of your computer. If the problem still occurs, please check in with our support team.