Developer David V. Kocher today unveiled Cyberduck 3, a major update to his FTP client software, offering users a number of new protocols and several other enhanced features. Cyberduck 3 now offers support for both Amazon Simple Storage Service and WebDAV protocols, as well as the ability to use Quick Look in the browser under Mac OS X 10.5 Leopard. The update is available from Kocher's website, or through the automated "Check for Update" feature.

The addition of the aforementioned protocols includes support for file renaming on Amazon S3, and copying files on both WebDAV and Amazon S3. The bookmark editor now sits inside a browser window, rather than a drawer, and the interface now includes a button to open a link in a web browser.

Cyberduck 3 resolves a bug where users could not transfer files larger than 2GB in size, and adds many other features.