We will be renaming the upstream letsencrypt client to "certbot", to make it clear that it's distinct from the Let's Encrypt CA service that it talks to. Currently this is scheduled for the 12th of May, if no unexpected obstacles are encountered. We will continue to publish deprecated letsencrypt shim packages to PyPI, which depend on and wrap the new certbot ones, so that third party code, scripts and integrations continue to function correctly. Fedora may wish to literally package those shims, or use other rpm mechanisms to ensure that "dnf install letsencrypt ; letsencrypt" does not break. Let's use this ticket to track any questions or subtasks associated with the rename? (Related tickets for the upstream project are here: https://github.com/letsencrypt/letsencrypt/issues?q=is%3Aopen+is%3Aissue+label%3Arename )
Quick update Peter. The package rename review has been completed and we're ready for once the 0.6.0 release gets tagged (pypi optional but would be nice) to carry out our builds.
certbot is now stable, letsencrypt is being retired