Sharing has received improvements too – users can opt to share their likes on Facebook. The usual array of bug fixes and optimizations are included in the update.
Android and iOS users on Instagram can now search for people and tags in the "Explore tag", which is a big improvement – previously search was very limited and stagnant. And last but not least there have been improvements to commenting.
You can check out the iOS and Android app and download it for free.
Source: GSMArena Blog