Currently, we don't support old versions of this project - security updates will only be made against the main branch (= latest version). To stay secure, always use the latest version of this project.
If you think you've found a vulnerability, responsible disclosure is appreciated! Instructions are found from the policy page.
This is not a function61 (my company) project, but a personal project of mine.
However, the spirit and instructions outlined in function61's security policy apply to my personal projects as well.