Ubuntu 19.10 (Eoan Ermine) will reach end of life on July 17th, 2020. If you haven’t upgraded yet, Canonical urges all users to upgrade to Ubuntu 20.04 LTS (Focal Fossa) until then.
The Linux kernel 5.6 series is now marked as EOL (End-of-Life) on the kernel.org website. All users are urged to update their GNU/Linux distributions to the latest Linux kernel 5.7 series as soon as possible.
The Linux 5.5 kernel series has reached end of life (EOL) and it will no longer receive maintenance updates. All users of the Linux 5.5 kernel are urged to upgrade to Linux kernel 5.6 as soon as possible.