https://letsencrypt.org/ is a new free, automated SSL certificate issuing service that simplifies SSL certificate issuance. Despite being a new CA (Certificate Authority), the certificates are recognized by all major browsers already because they are cross-signed by IdenTrust. The project is intended to facilitate much more pervasive encryption of the Internet - https://www.eff.org/deeplinks/2016/03/new-name-and-roadmap-lets-encrypt-client.
The Electronic Frontiers Foundation and others launched the service to the public in December 2015 (https://www.eff.org/deeplinks/2015/12/lets-encrypt-project-comes-fruition-2015-review), and it recently issued its 1,000,000th certificate (https://www.eff.org/deeplinks/2016/03/new-name-and-roadmap-lets-encrypt-client). Has anyone in the CiviCRM community started using Let's Encrypt in production despite the warning that it is only a beta (https://letsencrypt.readthedocs.org/en/latest/intro.html)? Any problems or gotchas?