To update the software on apple tv (2nd or 3rd generation), go to settings > general > update software. if there's an update, download and install it. don't disconnect or unplug your apple tv until the update completes.. "an apple tv software update is required to use netflix. go to settings > general > update software" go to settings > general > update software" i can select "update now" or "update later".. Here’s how to update your apple tv with your pc or mac. first, disconnect the hdmi cable from your apple tv, then unplug the power cord and ethernet cable..
Choose system preferences from the apple ( ) menu, then click software update to check for updates. if any updates are available, click the update now button to install them. or click ”more info” to see details about each update and select specific updates to install.. It seems to be an itunes update that appears when a device is first connected to itunes by usb after updating to mojave. based on my experience, it doesn't appear on wifi connections, only usb, so presumably updates the required usb driver.. €
