Will the T4 stay up-to-date?

Yes, if it’s connected to the internet through Ethernet or Wi-Fi, the T4 will automatically look for updates every night and install them if it finds any. If your T4 isn’t online, you can update it by downloading the update files onto a USB stick and plugging that into the T4.

If you’d rather updates didn’t happen on their own, you can turn off Automatic Updates. To do this and to manually check for updates, go to: Settings > System > Software Updates.