Microsoft recently introduced support for Mojis and the ability to send Photos in the Messaging + Skype with Windows 10 Mobile Redstone build 14267. If you don’t want to use Redstone on your Windows 10 Mobile yet but want the new features for Messaging + Skype, you will be glad to know that the new features are now available to users using Windows 10 Mobile Threshold 2 (this includes build 10586).
If you own a Lumia 950, 650, 550, 950 XL or a device that shipped with Windows 10 Mobile, you should be able to get these new features on Messaging + Skype. Keep in mind that this may not be available on older builds, so you probably need to have build 10586 on your Windows 10 Mobile to get the latest features.
To get the latest update, just open up the Windows Store, head over to the Downloads & Updates section and check for updates.