Fail2WP for WordPress 1.1.0 has been released with fixes, a lot of new features, and verified compatibility with WordPress 5.7.
You can get the updated version of Fail2WP for WordPress via the WordPress Plugin repository and GitHub.
Fail2WP is a security plugin for WordPress which also plays nicely with Fail2ban and Cloudflare 🙂
Read more about the Fail2WP plugin.