Here's what you need to do:
- while connected to your Keezel WiFi, go to keezel/ in your browser
- click on the "hamburger menu" in the top-right corner of the page - the 3 horizontal lines next to the Keezel's battery indicator
- click on About from the menu
- you will see your Keezel's firmware version, app version, MAC and IP address
Here you can also manually update your Keezel if you don't want to wait for it to get the new update (if one is available, of course) automatically. All you need to do is click on the Manual update button.