Spotify today now released an update for their Windows Phone app. This v18.104.22.168 is a minor update with no new features. According to the change log, this update includes performance and minor UI related bug fixes.
Performance and minor UI related bug fixes
With Spotify app,
Listen to your music, wherever you are. With Spotify, you have access to a world of music. You can listen to artists and albums, or create your own playlist of your favourite songs. Want to discover new music? Choose a ready-made playlist that suits your mood or get personalized recommendations.
Update Spotify for Windows Phone using the below link.