Dropbox has been optimized for recently launched iPhone 6 and iPhone 6 Plus. The app takes advantage of the large screen and powerful resolution on the iPhones.
In addition, the app now supports TouchID fingerprint sensor allowing users to protect any Dropbox documents. iPhone 5S users can also use the updated Dropbox app as it also has the Touch ID support. Other updates include, stability and performance improvements, as well as a fix for previewing RTF files on iOS 8.
Dropbox was recently updated with iOS 8 features like Notification center that shows all your activities in Today View widget. It also added a new Share extension that allows files from other apps to be opened and saved and the ability to manage shared folders in the app.
You can update the Dropbox app from Apple App Store.