RPI is able to monitor its version’s consistency with the server to which it is connected. Every hour, the client application checks to ensure that its version is the same as that of the server. If there is a mismatch, due to a server upgrade having taken place while the client application is running, the Client Update dialog is displayed.
Clicking OK closes the current RPI client application session and commences download and update of the new client application files. Unfortunately, should this situation arise, you will not be able to save any outstanding changes displayed currently in your client application (the version incompatibility meaning that a save at this point would not be possible).
Clicking Cancel closes the RPI client application.