File-sharing service Dropbox has updated its official iOS app with a number of new features, including full optimization for the iPhone 6 and 6 Plus as well integration with Touch ID for more convenient unlocking. The app also includes a fix for previewing rich text format format files and general stability and performance improvements. Dropbox saw its last major update last month after the release of iOS 8 which brought a new Notification Center widget, 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. A have also included support for Touch ID since the release of iOS 8 last month. is a free app for the iPhone and iPad and can be downloaded from the App Store. []
