Correct, but one can use rdiff-backup http://rdiff-backup.nongnu.org/ http://rdiff-backup.nongnu.org/. Since I use mercurial for critical files I have some ver

Correct, but one can use rdiff-backup http://rdiff-backup.nongnu.org/ http://rdiff-backup.nongnu.org/. Since I use mercurial for critical files I have some versioning.