citusdata · ibrahim halatci (ihalatci) · Sep 9, 2026 · Sep 8, 2026
diff --git a/.github/workflows/build-citus-community-nightlies.yml b/.github/workflows/build-citus-community-nightlies.yml
@@ -30,7 +30,6 @@ jobs:
       matrix:
         platform:
           - el/8
-          - debian/bullseye
           - debian/bookworm
           - debian/trixie
           - ubuntu/jammy

diff --git a/.github/workflows/build-package-test.yml b/.github/workflows/build-package-test.yml
@@ -51,7 +51,6 @@ jobs:
         include:
           - TARGET_PLATFORM: almalinux,9
             POSTGRES_VERSION: 19
-          - TARGET_PLATFORM: debian,bullseye
           - TARGET_PLATFORM: debian,bookworm
           - TARGET_PLATFORM: debian,trixie
           - TARGET_PLATFORM: ubuntu,jammy

diff --git a/.github/workflows/build-package.yml b/.github/workflows/build-package.yml
@@ -51,7 +51,6 @@ jobs:
         include:
           - TARGET_PLATFORM: almalinux,9
             POSTGRES_VERSION: 19
-          - TARGET_PLATFORM: debian,bullseye
           - TARGET_PLATFORM: debian,bookworm
           - TARGET_PLATFORM: debian,trixie
           - TARGET_PLATFORM: ubuntu,jammy

diff --git a/.github/workflows/build-pgazure-nightlies.yml b/.github/workflows/build-pgazure-nightlies.yml
@@ -32,7 +32,6 @@ jobs:
 # temporarily removed from nightlies since pg15 beta is not being downloaded for ol/7
 # - ol/7
           - debian/buster
-          - debian/bullseye
           - ubuntu/bionic
           - ubuntu/focal
 

diff --git a/.github/workflows/image-health-check.yml b/.github/workflows/image-health-check.yml
@@ -53,7 +53,6 @@ jobs:
         include:
           - TARGET_PLATFORM: almalinux,9
             POSTGRES_VERSION: 19
-          - TARGET_PLATFORM: debian,bullseye
           - TARGET_PLATFORM: debian,bookworm
           - TARGET_PLATFORM: debian,trixie
           - TARGET_PLATFORM: ubuntu,jammy

diff --git a/README.md b/README.md
@@ -42,6 +42,8 @@ The build type can be `release`, `nightly`, or any valid git reference. `release
 
 By default, `build_packages` builds on _all_ supported operating systems. Edit `os-list.csv` if you wish to build for fewer.
 
+Debian 11 (Bullseye) is no longer supported following the end of Debian LTS on August 31, 2026. Use Debian 12 (Bookworm) or Debian 13 (Trixie) instead.
+
 ### Updating Dockerfiles
 
 `update_dockerfiles` generates a new set of Dockerfiles. This repository has automated builds configured, so if you need to change the Docker images, run `update_dockerfiles`, commit the resulting Dockerfile changes, and push.

diff --git a/ci/push_images b/ci/push_images
@@ -23,6 +23,11 @@ else
     image_name="packaging"
 fi
 
+if [[ "${TARGET_PLATFORM:-}" = 'debian,bullseye' ]]; then
+    echo "${TARGET_PLATFORM} unsupported: Debian LTS ended on 2026-08-31" >&2
+    exit 1
+fi
+
 echo "${DOCKERHUB_PASSWORD}" | docker login -u "${DOCKERHUB_USER_NAME}" --password-stdin
 
 declare args

diff --git a/dockerfiles/debian-bullseye-all/Dockerfile b/dockerfiles/debian-bullseye-all/Dockerfile
diff --git a/os-list.csv b/os-list.csv
@@ -1,6 +1,5 @@
 almalinux,8
 almalinux,9
-debian,bullseye
 debian,bookworm
 debian,trixie
 oraclelinux,8

diff --git a/update_image b/update_image
@@ -37,6 +37,11 @@ if [[ "${os},${release}" =~ ^ubuntu,(focal|bionic)$ ]]; then
     exit 1
 fi
 
+if [[ "${os},${release}" = 'debian,bullseye' ]]; then
+    echo "${TARGET_PLATFORM} unsupported: Debian LTS ended on 2026-08-31" >&2
+    exit 1
+fi
+
 if [[ "${os}" = 'debian' ]] || [[ "${os}" = 'ubuntu' ]]; then
     tag="${os}-${release}-all"
     args+="build --pull --no-cache -t citus/${image_name}:${tag} -f ${dockerfiles_dir}/${tag}/Dockerfile .\n"