The updater will check for new versions periodically. A green tick in the menu means your version is up to date:
From the CLI
Alternatively, you can do updates from the command line. Check if there's updates:
# xoa-updater
Successfully connected to xoa-updater-service
Checking new versions...ok ✔
New versions available:
xo-server 4.8.1
ℹ xoa-updater may be run again to upgrade packages
Upgrade:
# xoa-updater --upgrade
Successfully connected to xoa-updater-service
Checking new versions...ok ✔
New versions available:
xo-server 4.8.1
[...]
Downloading packages...
Installing new packages...
✔ Your XOA has been successfully updated.