I have built certbot 2.1.0 for all supported releases of Fedora and for
EPEL. It has been in testing for 2 weeks. I am getting ready to push it
to stable in the next few days.
It is a "major" update, but is mostly backwards compatible. 2.0.0 had more
incompatibilities, but in 2.1.0 they added changes to make most plugins
still work with the new 2.x series. The other main change is that it will
use ECDSA keys by default instead of RSA.
nb