Instagram is one of the most popular apps on Android or any platform, but it's always been a little slow to conform to Android's changing design guidelines. The most recent beta version makes at least one notable update—a colored status bar on Lollipop devices. Baby steps.

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Left: new, Right: old

As you can see above, that status bar is blue and the other one is not. This is the essence of the update, as near as we can tell. There might be some other minor tweaks and general optimizations, though. You can grab the APK from APK Mirror below, or join the beta yourself.