ci: drop debian-11 (EOL) from CI matrix - #70238
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Debian 11 (bullseye) reached the end of its LTS window on 2026-08-31 (https://www.debian.org/releases/bullseye/). Its security suite is now frozen (the Release file's own Date field is stuck at that exact moment) and packages are becoming unreliable to fetch - this has been repeatedly breaking salt-ci-containers' testing:debian-11 image build, which in turn blocks publication of every other image in the same run. Salt's own published support policy already excludes this case: 'Debian stable, oldstable, and oldoldstable (if it is not EOL) versions.' Debian 11 is oldoldstable and is now EOL, so it falls outside Salt's own supported list - the 'Full' entry in the supported-OS table just hasn't caught up to that yet. debian-13 is already enabled (x86_64 in the regular test matrix, arm64 in the pkg matrix), so Debian keeps CI coverage without further changes. Follows the same slug-swap precedent as 972e0d5 (Fedora 40 -> 43).
This was referenced Sep 4, 2026
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Debian 11 (bullseye) reached the end of its LTS window on 2026-08-31 (https://www.debian.org/releases/bullseye/). Its security suite is now frozen (the
Releasefile's ownDatefield is stuck at that exact moment) and packages are becoming unreliable to fetch - this has been repeatedly breakingsalt-ci-containers'testing:debian-11image build, which in turn blocks publication of every other image in the same run (the downstreammerge/publish job needs everybuildmatrix entry to succeed, regardless offail-fast: false).Salt's own published support policy already excludes this case: "Debian stable, oldstable, and oldoldstable (if it is not EOL) versions." Debian 11 is
oldoldstableand is now EOL, so it's outside Salt's own supported list - the "Full" entry in the supported-OS table just hasn't caught up to that yet.debian-13is already enabled incicd/shared-gh-workflows-context.yml(x86_64 in the regular test matrix, arm64 in the pkg matrix), so Debian keeps CI coverage without further changes needed. Follows the same slug-swap precedent as972e0d5(Fedora 40 -> 43).Companion PR in
salt-bootstrap: saltstack/salt-bootstrap#2131