Improved Security
ClassicPress has a “security-first” approach. All key security patches from WordPress are backported to ClassicPress. Also, no matter how exciting a new feature is, if it’s not secure, it won’t be added.
Archiv: ClassicPress (operating System)
ClassicPress / ClassicPress-Migration-Plugin
Switch your WordPress installation to ClassicPress.
Is It Time to Consider ClassicPress, Alternative to WordPress?
(March 31, 2021 )
ClassicPress is under active development, has the familiar WordPress interface many longtime WordPress users know, and releases regular security updates.
In addition, they have active community forums and a Slack channel.