Starting today, iOS 9.1 is out for supported iPhones, iPads, and iPod touch devices. The latest release of Apple's mobile operating system is already rolling out, so you may get the update notification soon, if you haven't already.
Since this is a .1 version, you obviously shouldn't expect it to come with huge new things. iOS 9.1 does, however, feature over 150 new emojis, a selection of which you can see in the image below. iOS now has full support for Unicode 7.0 and 8.0 emojis, by the way.
The Live Photos functionality has been improved too, as it now "intelligently senses when you raise or lower your iPhone", and doesn't record those movements anymore. Of course the usual assortment of bug fixes and performance improvements are to be found in iOS 9.1 as well.
Finally, there's a new option in Settings > Messages, which lets you allow or disable showing photos for your contacts.