Spotify just released version 0.5.1 of its universal iOS app. The new version adds push notifications for updates to playlists that you are subscribed to, new subscribers, and when a friend joins Spotify. The update also brings a number of fixes, updated artwork for Retina displays, and Retina graphics for offline playlists. We are not so sure how many people will find push for Spotify useful, because those subscribed to many playlists will likely be bombarded by notifications. The good news is you can switch them off from Settings. Unfortunately, you cannot specify notifications for specific playlists. You can check out the full list of changes from the update below:

What’s New in Version 0.5.1

• New: Push notifications. Receive notifications when your subscribed playlists are updated, you get new subscribers, and more. You can choose which notifications to receive in Settings.
• New: Intro guide for new users.
• Fixed: Missing retina graphics on log in screen (iPad).
• Fixed: Retina album art is now always synced when you offline sync playlists.
• Fixed: App could sometimes become unresponsive after scrolling and navigating at the same time.
• Other improvements to Facebook login, screen locking when offline syncing, performance and stability