A. Pagaltzis wrote:

Not likely. But if in doubt, keep copies. Tar up the directories and keep the tarballs somewhere. If deleting them has bad effects, just untar them into place again. (Make sure to pass `-p` when extracting so the permissions, ownership etc get restored fully.)

Thanks for the reply. I've done as you said. I was just afraid that perhaps some plugin used by the current version was still in the files for the older versions, but so far, so good. Thanks again, Leslie