Security updates are applied only to versions: the latest (currently v2.6.2.0, but growing in time) and the classic (fixed in time v2.1.6.0).
If you have discovered a security vulnerability in this project, please report it privately. Do not disclose it as a public issue. This gives us time to work with you to fix the issue before public exposure, reducing the chance that the exploit will be used before a patch is released.
Please disclose it by email: mashanovedad@gmail.com.
This project is maintained by a team of volunteers on a reasonable-effort basis. As such, vulnerabilities will be disclosed in a best effort base.