Apple has recently pushed out an update to the Apple Store app, bringing it up to version 3.3. With the latest version, the main changes that Apple has made is in its security. Basically now users have the option of enabling two-step authentication which means that an extra code will have to be entered to verify your purchases.
Touch ID integration has also been made deeper and will now be used to protect your privacy, such as when viewing order history or EasyPay receipts, users will be required to authenticate themselves via Touch ID. Prior to this passwords had to entered manually but with Touch ID, it should prove to be a lot faster.
It should be noted that if users wish to enable two-step authentication, they will have to go to the My Apple ID website and under “Password and Security”, choose to enable the feature. If you did not enable it manually then you will not be able to take advantage of it.