Earlier today, Dropbox rolled out version 2.1 of its iOS app with a trio of enhancements in tow. The update, which requires iOS 5.0 or higher introduces a new PDF viewer, file sorting by date modified, and push notifications for when someone shares a folder with you (which were also recently added to the Android client). Whether you're a Dropbox power user or the casual type, this new software bump should definitely come in handy. If you're a stickler for keeping your apps current and you've got 13.8MB to spare, the update's waiting for you at the source link below.
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