For some of you out there who use Dropbox, you may encounter files that won’t sync because of file locking (a.k.a. "in use") issues. For example, if you have a database file in your Dropbox share folder, on sync it may not work if you’re currently using the database with whatever program is accessing it. Then on close of that program, Dropbox may unintentionally sync garbage files.

The solution to this is to have a "Pause Sync" feature, however it’s not available in the current version.

But it is available in the experimental version:

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Note the "Pause Syncing" option in the Dropbox menu screenshot above. It does exactly what it says it will do – pause syncing. This is a great feature to have because you can simply pause sync instead of having to shutdown Dropbox and reopen it whenever you need to temporarily stop syncing.

Where to get the experimental build?

This Dropbox forum thread. Versions are available for Windows, Mac, Linux x86 and Linux x86_64.

I’ve been using an experimental build for close to a week and have encountered no weird issues whatsoever. It appears to be stable enough for regular use, so if you really want the Pause Syncing feature, go ahead and grab the latest "forum build" of Dropbox.