Your cloud queue has two strings, contextVersion and queueVersion, to signal changes in the cloud data. Each time the list of tracks, metadata, or skip enforcement data changes, you must change one of these version identifiers. The Sonos player is responsible for periodically polling this value to detect changes in the cloud queue track list, context metadata, or skip limits.

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The request contains the access token in the authorization header and the parameters below.
Deprecated as of v2.0

If the access token is set to expire soon, you should include an updated token in the X-Updated-Authorization header. See Play audio for details.