At a maximum of once per day, Credosity (on launch) checks in with https://account.credosity.com/ and finds the latest version.
The HTTPS Get request looks like:
where your SubscriptionId and current version number is sent to the server
If the plugin is not the latest, the latest perUser .MSI is downloaded and automatically installed in the background.
Note: Auto-updates only occur when the perUser .MSI (self-install) is installed. The perMachine .MSI (IT installed) doesn't auto-update.