Please see following steps:
1. Go to Settings (or find the badge at the top right corner indicating an update is available)
2. Select the Prota from the bottom section (upgradable Prota OS).
3. Proceed with the update.
(It may take up to 15 minutes.)
4. When the update is done, the status on Prota Space should change to "Go".
* Prota may get stuck during an update due to various network issues. In this case, just reboot your Prota (without resetting) and try again in a few minutes.
* Special tip: use Stories to get a notification!
"When there is an available version to upgrade, email myself to be notified."