[SOLVED] Installed Slackware current, shows installed Slackware 15.0+

I have installed Slackware current after 2 years again :)
I want to add mirrors. It says you have installed Slackware 15.0+ but selected Slackware current mirror.
Should I continue or I have to change my mirrors. Maybe something changed in Slackware.

I have downloaded Slackware current from the following mirror:
https://slackware.nl/slackware/slackware64-current-iso/

Code:bash-5.2# cat /etc/slackware-version
Slackware 15.0+