Subversion is a popular open-source version management system.
An IT organization (department of SME) develops one or more software products managed in SVN. SVN "commit messages" are read by ]project-open[ and checked for references to ]po[ [projects] or helpdesk tickets. Commit messages are then associated with these ]po[ objects, allowing to track the relationship between code changes.
The SVN integration is under development at the moment. However, the CVS integration is already used in production.