Cervisia

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Cervisia is a front-end for the CVS version control system client. In addition to basic and advanced CVS operations, it provides a convenient graphical interface for viewing, editing, and manipulating files in a CVS repository or working directory. It includes tools designed to ease the use of CVS, such as a log browser, conflict resolver, and changelog editor that checks for incorrect formatting.

Similar applications: 
Microsoft Visual SourceSafe