Apple has released iOS 9.1 beta 4 to users participating in the developer beta and public beta programs. The new build arrives as 13B5136 and continues to focus on bug fixes, feature enhancements, along with the addition of new emoji icons.
Users running a prior version of iOS 9.1 beta can find the new version available to download now from the Software Update mechanism in Settings. Developers can also download the IPSW from the Apple Developer Center for compatible iPhone, iPad, and iPod touch devices.