Debain
Debian 10

 - upon which V18 for Linux is based - has reached end of life. This means no further security updates will be released by Debian. Quoting from their release “Starting in July, Debian will not provide further security updates for Debian 10. A subset of buster packages will be supported by external parties.”

The full announcement can be read here : https://www.debian.org/News/2024/20240615