The last tarball release was from 4 years ago on feep.net, though development has continued in this git repository. A quote from the git repo:

"This is a maintenance repo for the libtar project, temporarily run by Chris Frey until Mark Roth decides to pick up development again. No tarball releases will be done, but just grab the tagged sources from this repo. If you wish to contribute a patch, feel free to post to the libtar mailing list, where Chris Frey and Mark Roth hang out."

I don't know if this makes it a candidate for redacting. I'll put it in a tap if so.