[joshuaissac]

We still use SCCS at the investment firm I work at, to track configuration file change history.

The source code itself was moved to Subversion (via RCS and CVS) long ago, and later to Git, but the configuration files continue to be tracked using SCCS.

There is an open source implementation of SCCS called GNU CSSC: https://www.gnu.org/software/cssc/

[kstrauser]

How come? What keeps you on it?

[joshuaissac]

Inertia. It works and does not cause any problems. Users just open, edit, save and commit config changes from the UI of the configuration editor, which handles the SCCS part behind the scenes.

We could migrate it all to Git, but unlike with source code, we do not branch or merge config, and there are no clear benefits to a migration to justify the effort and the risk.