Years ago I added features to CopyFS 1.0, then 1.0.1 came out and I never bothered to forward-port my changes. After spending some time moving, merging, rebasing, etc. in git this morning, CopyFS 1.3.1M is CopyFS 1.0.1 + CopyFS 1.3M.
I worked deliberately to ensure all of the old codes were left accessible, so if you check the tags, you’ll see each version (1.0 through 1.3.1M) available if you want to rollback or whatever. Have at. I don’t expect to be actively developing this, but pull requests are welcome.