From the ISC web site

Posted Jun 4, 2025 0:02 UTC (Wed) by fratti (guest, #105722)
In reply to: From the ISC web site by rschroev
Parent article: Local vulnerabilities in Kea DHCP

> Clearly the ISC really wants you to use Kea instead of ISC DHCP server. You don't want to run network software that hasn't been maintained since 2022.

You are talking to a Debian user. They only run software that hasn't been maintained since 2022.