Incremental Sync Lands in the Dropbox API
The most requested feature since the Dropbox API launch has been a way to track changes to files and folders. That capability is now available in production through the /delta endpoint.
/delta returns a list of added, deleted, or modified items since the last call, letting you update your local state incrementally to match the server. This replaces the much less efficient approach of repeated /metadata polling. Note that you still poll periodically — the call reports whatever changes have accumulated since your previous request.
Direct Server-Side Copies
The /copy_ref endpoint has also graduated from beta. With permission from both account holders, you can now copy files programmatically between two Dropbox accounts without downloading and re-uploading the data.
SDK for OS X
A new OS X SDK joins the existing iOS SDK, simplifying distribution through the Mac App Store. Developers already familiar with the iOS SDK should find the transition straightforward.
The OS X SDK and updated versions of the existing SDKs are available from the standard developer portal. Feedback is welcome on the forums.
