This is the archive area for components that are no longer maintained in SVN. It is intentionally read-only except as needed for moving components. When a component moves to a new source code repository, the SVN source tree is moved here. The original SVN parent directory is emptied of all content except for a README file which points to the new source code repo (e.g. Git) For example, Commons Math now uses Git. The original location for Math was under commons/proper/math It has been moved to commons/_moved_to_git/math Note that the directory commons/proper/math still exists, but only contains a README file.