Knowledge base → Disabling apt update notification in Debian 12

When running the apt update command on Debian 12, a notification appears:

N: Repository 'Debian bookworm' changed its 'non-free component' value from 'non-free' to 'non-free non-free-firmware'

To prevent it from appearing again, create a file with the following settings:

nano /etc/apt/apt.conf.d/no-firmware.conf

APT::Get::Update::SourceListWarnings::NonFreeFirmware "false";

Done.

From the release notes:

/etc/apt/sources.list

deb http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware
deb-src http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware