Hi! A. Checking apt 2.5.6
Tag with release 2.5.6: https://salsa.debian.org/apt-team/apt/-/commit/028b4d08f09e14c1e6f5e071f329668870bc5e56 XML file with name of stable release in this tag: https://salsa.debian.org/apt-team/apt/-/blob/028b4d08f09e14c1e6f5e071f329668870bc5e56/doc/apt-verbatim.ent#L281 <!-- (Code)names for various things used all over the place --> [...] <!ENTITY debian-stable-codename "bullseye"> XML file with names of components to be used in sources file in this tag: https://salsa.debian.org/apt-team/apt/-/blob/028b4d08f09e14c1e6f5e071f329668870bc5e56/vendor/debian/apt-vendor.ent#L15 Components: main contrib non-free This suggests that code name for Debian version that includes apt 2.5.6 is "bullseye", and that the list of components in that Debian version doesn't include "non-free-firmware". B. Checking apt 2.6.1 (the version available in my Debian/bookworm) Tag with release 2.6.1: https://salsa.debian.org/apt-team/apt/-/commit/a626a66fece0a7d680e40b9e35b66e29fe9ae12c XML file with name of stable release in this tag: https://salsa.debian.org/apt-team/apt/-/blob/a626a66fece0a7d680e40b9e35b66e29fe9ae12c/doc/apt-verbatim.ent#L281 <!-- (Code)names for various things used all over the place --> <!ENTITY debian-stable-codename "bookworm"> XML file with names of components to be used in sources file in this tag: https://salsa.debian.org/apt-team/apt/-/blob/a626a66fece0a7d680e40b9e35b66e29fe9ae12c/vendor/debian/apt-vendor.ent#L15 Components: main contrib non-free non-free-firmware This suggests that code name for Debian version that includes apt 2.6.1 is "bookworm", and that the list of components in that Debian version does include "non-free-firmware". You can also download apt 2.6.1 (e.g. apt_2.6.1_amd64.deb) from http://ftp.debian.org/debian/pool/main/a/apt/ and verify contents of the sources.list file in question. It includes "bookworm" as code name, and it does include "non-free-firmware" as a component for binary packages' repo. C. List of Debian releases https://www.debian.org/releases/ The list shows that bookworm was released in 06.2023, whereas this ticket was created in 02.2023, i.e. before an official release. My guess is that not including Debian release names in apt's source files would have some benefits (a bit more flexibility), but on the other hand the current approach with .ent files most probably also has some benefits. It looks like the issue described in the ticket is not a valid problem. If there will be no feedback in a ~week then I will close this ticket. Kamil
