Why has the app changed?
At Spotify, we're often testing possible improvements and new features. This means you might see something on the app your friend doesn't, or get a brand new feature for only a temporary period.
Things we might test could include the next generation of security protection, or new ways to listen. It's also a way for us to introduce new features, and fine-tune the app to be compatible with specific devices.
Let us know what you think over at our Community.
Tip: Make sure you don't miss a thing by enabling automatic updates on your device.