Starting November 15, 2015, Microsoft has officially killed their former music streaming service Zune. Any existing Zune Music Pass subscriptions will be changed to Groove Music Pass subscriptions.
In an update to their FAQ page:
You will no longer be able to stream or download content to your device from the Zune music service. However, Zune devices will still function as music players and any MP3 content that you own on the Zune device will remain there. You’ll also be able to transfer music to and from your Zune player.
Time to ditch that old Zune player you’re still harboring 😆