Retrospect is a family of backup software applications for the classic Mac OS, macOS, and Microsoft Windows operating systems. Its maker Dantz Development Corporation was acquired by EMC Corporation in 2004. In May 2010 Retrospect was sold to Roxio/Sonic Solutions. In 2011, development of Retrospect was turned over to a privately held company operating under the name Retrospect, Inc. The first version from this company, Retrospect 9, was released on November 2, 2011. Its foreign distribution rights are in demand as of 2016, no doubt because its "complete hybrid data protection for small and medium businesses" now includes cloud backup to a variety of providers or private servers.