Instagram For IOS Update to v2.1

Application of the most popular photo sharing Instagram recently released an update for iPhone, iPod touch and iPad.

For users of Instagram, is mandatory if there are new updates for this application. And incidentally, in the latest update there are some obvious changes. What are the changes?

• Lux: a new way to mengehance photo
• View little changed to be more attractive with a new design
• There is a new filter that is Sierra
• Can merubap profile pic directly from the profile page
• Click of the notification to go directly to photo
  

Looks like the update is mandatory. If not go through the Apple App Store to instantly update it, Free! Because it is Instagram even this is not paid.