Comparison of version-control software

Columns: Software | History | Notable users
AccuRev SCM | First publicly released in 2002 | American Airlines , Ford , Lockheed Martin , Orbitz , Xerox , McAfee , Polycom , SanDisk , Siemens , Sony , Symantec , Thomson Financial , Verizon Wireless and many others | Azure DevOps Server | First publicly released in March , 2006 as Visual Studio Team System , renamed to Team Foundation Server in 2010 and Azure DevOps Server in 2019 | Microsoft | Azure DevOps Services | First publicly released in 2012 as Team Foundation Service , renamed to Visual Studio Online in 2013 , Visual Studio Team Services in 2015 and Azure DevOps in 2018 | Microsoft | GNU Bazaar | Initial release March 26 , 2005 . Loosely related to baz . Sponsored by Canonical Ltd . | Ubuntu , Launchpad , KatchTV , | BitKeeper | Initial release May 4 , 2000 . Influenced by Sun WorkShop TeamWare | Linux Kernel ( 2002-2005 ) and many companies | CA Software Change Manager | Original company founded in 1977 ; CA SCM ( then called CCC/Harvest ) first released in 1995 | CA does not disclose customer lists without the companies ' permission . CA SCM is used by companies with global development teams including 13 of the Fortune 100 | ClearCase | Developed beginning in 1990 by Atria Software , following concepts developed by Apollo Computer in DSEE during the 1980s . The most recent version is 9.0.0 , released in March 2016 | IBM , Alcatel-Lucent , Cisco , Motorola , Siemens , Ericsson , Nokia , Society for Worldwide Interbank Financial Telecommunication and other large organizations worldwide

Example questions:
Who bought-out the software company who 's version management software was used by Lockheed Martin and Verizon Wireless ? | What hash technology does the software first released in April 2003 use ? | Where is the company who 's software the Linux Kernel used from 2002 to 2005 based ? | What was the buyout price for the company responsible for ClearCase ? | Who currently maintains the software version control technology originally developed by Linus Torvalds ?

Answers:
Micro Focus | SHA-1 | Los Gatos , California | US $ 476 million | Junio Hamano