"11" と付けられた方が新しいのかと思ったら...

openssl (Secure Sockets Layer toolkit) => v3.3.1
openssl11 (SSL toolkit version 1.1.x) ==> v1.1.1

ttps://mirrors.slackware.com/slackware/slackware64-current/ChangeLog.txt
> Wed Jul 17 19:29:24 UTC 2024
> n/openssl11-1.1.1za-x86_64-1.txz: Upgraded.
> We probably won't keep 1.1.1 in -current for long anyway,