We are happy to announce Enigmail v1.9.9. This release contains fixes for several vulnerabilities identified by Cure53 during a security audit. Please refer to the security report for details on the found vulnerabilities.

[Update 2018-08-02]: The full report, which also covers Thunderbird, is now published.

We would like to thank Posteo and The Mozilla Foundation for sponsoring the security audit.

This is a bugfix release.