Facebook had today updated their new Instagram Beta app for Windows 10 mobile. Windows 10 mobile Instagram app is getting updated regularly which is definitely a good sign as the earlier windows phone 8.1 version was not updated for years after launch. However, this update neither brings new features nor there is a changelog posted.
The update seems to have introduced a translucent live tile which is not noticeable.
The scrolling and other animations on timeline do feel a faster than before. Other than these changes it looks like this update fixed only Bugs.

Download Instagram Beta for Windows 10 mobile from here.