Apple has just released iOS 7 beta 4, which can be found in the Developer Portal right now. iOS 7 beta 4 build 11A4435d works with supported iPhone, iPad, and iPod touch models, and is available as an over-the-air update to users already running a previous iOS 7 beta on their devices. If you're already running iOS 7, you can update over-the-air by going into Settings > General > Software Update. Or you can go and grab the necessary download at http://developer.apple.com. Apple originally showed off iOS 7, and released its first beta, at WWDC 2013. The full released will come in the fall.
We've got a list of changes we've found so far in iOS 7 beta 4, which you can find after the break.