Cyberduck, the libre client to access FTP/SFTP/WebDAV file servers and cloud storage on Mac OS X and Windows, has been revved to version 4.4. It features a complete refactoring for improved performance and testability.

Cyberduck 4.4 continues to embrace to the latest developments in cloud storage, adding support for multipart uploads, bucket lifecycle configuration in Amazon S3 to archive objects in Amazon Glacier and multi-region support for OpenStack Swift.

File transfer reliability has been improved for higher throughput and the option to continue or cancel on failure transferring multiple files. On the Mac, the application is now self contained with no Java Runtime installation requirement.

This release includes over 100 bug fixes. The full changelog is available at Cyberduck is available from and the Mac App Store. Mac OS X 10.6 or later required.