diff --git a/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-minimal/devcontainer.json b/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-minimal/devcontainer.json
deleted file mode 100644
index f00b6b66a91..00000000000
--- a/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-minimal/devcontainer.json
+++ /dev/null
@@ -1,25 +0,0 @@
-// The command "tox -e update_docker_platforms"
-//   creates .devcontainer/portability-*-*/devcontainer.json
-//      from .devcontainer/portability-devcontainer.json.in
-// See https://aka.ms/devcontainer.json for format details.
-{
-    "name": "opensuse-15.3-gcc_11-python3.9-minimal (≥ 8-core)",
-    "build": {
-        "dockerfile": "portability-Dockerfile",
-        // See tox.ini for definitions
-        "args": {
-            "SYSTEM_FACTOR": "opensuse-15.3-gcc_11-python3.9",
-            "PACKAGE_FACTOR": "minimal",
-            "DOCKER_TARGET": "with-targets",
-            "DOCKER_TAG": "dev"
-        }
-    },
-    "containerEnv": {
-        "MAKE": "make -j4"
-    },
-    "onCreateCommand": ".devcontainer/onCreate.sh",
-    "updateContentCommand": ".devcontainer/portability-updateContent.sh",
-    "extensions": [
-        "ms-python.python"
-    ]
-}
diff --git a/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-minimal/portability-Dockerfile b/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-minimal/portability-Dockerfile
deleted file mode 120000
index 692e2a79d64..00000000000
--- a/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-minimal/portability-Dockerfile
+++ /dev/null
@@ -1 +0,0 @@
-../portability-Dockerfile
\ No newline at end of file
diff --git a/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-standard/devcontainer.json b/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-standard/devcontainer.json
deleted file mode 100644
index 2444967bdad..00000000000
--- a/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-standard/devcontainer.json
+++ /dev/null
@@ -1,25 +0,0 @@
-// The command "tox -e update_docker_platforms"
-//   creates .devcontainer/portability-*-*/devcontainer.json
-//      from .devcontainer/portability-devcontainer.json.in
-// See https://aka.ms/devcontainer.json for format details.
-{
-    "name": "opensuse-15.3-gcc_11-python3.9-standard (≥ 8-core)",
-    "build": {
-        "dockerfile": "portability-Dockerfile",
-        // See tox.ini for definitions
-        "args": {
-            "SYSTEM_FACTOR": "opensuse-15.3-gcc_11-python3.9",
-            "PACKAGE_FACTOR": "standard",
-            "DOCKER_TARGET": "with-targets",
-            "DOCKER_TAG": "dev"
-        }
-    },
-    "containerEnv": {
-        "MAKE": "make -j4"
-    },
-    "onCreateCommand": ".devcontainer/onCreate.sh",
-    "updateContentCommand": ".devcontainer/portability-updateContent.sh",
-    "extensions": [
-        "ms-python.python"
-    ]
-}
diff --git a/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-standard/portability-Dockerfile b/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-standard/portability-Dockerfile
deleted file mode 120000
index 692e2a79d64..00000000000
--- a/.devcontainer/portability-opensuse-15.3-gcc_11-python3.9-standard/portability-Dockerfile
+++ /dev/null
@@ -1 +0,0 @@
-../portability-Dockerfile
\ No newline at end of file
diff --git a/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-minimal/devcontainer.json b/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-minimal/devcontainer.json
deleted file mode 100644
index aa8549b345d..00000000000
--- a/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-minimal/devcontainer.json
+++ /dev/null
@@ -1,25 +0,0 @@
-// The command "tox -e update_docker_platforms"
-//   creates .devcontainer/portability-*-*/devcontainer.json
-//      from .devcontainer/portability-devcontainer.json.in
-// See https://aka.ms/devcontainer.json for format details.
-{
-    "name": "opensuse-15.4-gcc_11-python3.10-minimal (≥ 8-core)",
-    "build": {
-        "dockerfile": "portability-Dockerfile",
-        // See tox.ini for definitions
-        "args": {
-            "SYSTEM_FACTOR": "opensuse-15.4-gcc_11-python3.10",
-            "PACKAGE_FACTOR": "minimal",
-            "DOCKER_TARGET": "with-targets",
-            "DOCKER_TAG": "dev"
-        }
-    },
-    "containerEnv": {
-        "MAKE": "make -j4"
-    },
-    "onCreateCommand": ".devcontainer/onCreate.sh",
-    "updateContentCommand": ".devcontainer/portability-updateContent.sh",
-    "extensions": [
-        "ms-python.python"
-    ]
-}
diff --git a/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-minimal/portability-Dockerfile b/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-minimal/portability-Dockerfile
deleted file mode 120000
index 692e2a79d64..00000000000
--- a/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-minimal/portability-Dockerfile
+++ /dev/null
@@ -1 +0,0 @@
-../portability-Dockerfile
\ No newline at end of file
diff --git a/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-standard/devcontainer.json b/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-standard/devcontainer.json
deleted file mode 100644
index 5278ae20eac..00000000000
--- a/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-standard/devcontainer.json
+++ /dev/null
@@ -1,25 +0,0 @@
-// The command "tox -e update_docker_platforms"
-//   creates .devcontainer/portability-*-*/devcontainer.json
-//      from .devcontainer/portability-devcontainer.json.in
-// See https://aka.ms/devcontainer.json for format details.
-{
-    "name": "opensuse-15.4-gcc_11-python3.10-standard (≥ 8-core)",
-    "build": {
-        "dockerfile": "portability-Dockerfile",
-        // See tox.ini for definitions
-        "args": {
-            "SYSTEM_FACTOR": "opensuse-15.4-gcc_11-python3.10",
-            "PACKAGE_FACTOR": "standard",
-            "DOCKER_TARGET": "with-targets",
-            "DOCKER_TAG": "dev"
-        }
-    },
-    "containerEnv": {
-        "MAKE": "make -j4"
-    },
-    "onCreateCommand": ".devcontainer/onCreate.sh",
-    "updateContentCommand": ".devcontainer/portability-updateContent.sh",
-    "extensions": [
-        "ms-python.python"
-    ]
-}
diff --git a/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-standard/portability-Dockerfile b/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-standard/portability-Dockerfile
deleted file mode 120000
index 692e2a79d64..00000000000
--- a/.devcontainer/portability-opensuse-15.4-gcc_11-python3.10-standard/portability-Dockerfile
+++ /dev/null
@@ -1 +0,0 @@
-../portability-Dockerfile
\ No newline at end of file
diff --git a/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-minimal/devcontainer.json b/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-minimal/devcontainer.json
deleted file mode 100644
index 7a250c6ba02..00000000000
--- a/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-minimal/devcontainer.json
+++ /dev/null
@@ -1,25 +0,0 @@
-// The command "tox -e update_docker_platforms"
-//   creates .devcontainer/portability-*-*/devcontainer.json
-//      from .devcontainer/portability-devcontainer.json.in
-// See https://aka.ms/devcontainer.json for format details.
-{
-    "name": "ubuntu-trusty-toolchain-gcc_9-minimal (≥ 8-core)",
-    "build": {
-        "dockerfile": "portability-Dockerfile",
-        // See tox.ini for definitions
-        "args": {
-            "SYSTEM_FACTOR": "ubuntu-trusty-toolchain-gcc_9",
-            "PACKAGE_FACTOR": "minimal",
-            "DOCKER_TARGET": "with-targets",
-            "DOCKER_TAG": "dev"
-        }
-    },
-    "containerEnv": {
-        "MAKE": "make -j4"
-    },
-    "onCreateCommand": ".devcontainer/onCreate.sh",
-    "updateContentCommand": ".devcontainer/portability-updateContent.sh",
-    "extensions": [
-        "ms-python.python"
-    ]
-}
diff --git a/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-minimal/portability-Dockerfile b/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-minimal/portability-Dockerfile
deleted file mode 120000
index 692e2a79d64..00000000000
--- a/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-minimal/portability-Dockerfile
+++ /dev/null
@@ -1 +0,0 @@
-../portability-Dockerfile
\ No newline at end of file
diff --git a/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-standard/devcontainer.json b/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-standard/devcontainer.json
deleted file mode 100644
index 41d1582c950..00000000000
--- a/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-standard/devcontainer.json
+++ /dev/null
@@ -1,25 +0,0 @@
-// The command "tox -e update_docker_platforms"
-//   creates .devcontainer/portability-*-*/devcontainer.json
-//      from .devcontainer/portability-devcontainer.json.in
-// See https://aka.ms/devcontainer.json for format details.
-{
-    "name": "ubuntu-trusty-toolchain-gcc_9-standard (≥ 8-core)",
-    "build": {
-        "dockerfile": "portability-Dockerfile",
-        // See tox.ini for definitions
-        "args": {
-            "SYSTEM_FACTOR": "ubuntu-trusty-toolchain-gcc_9",
-            "PACKAGE_FACTOR": "standard",
-            "DOCKER_TARGET": "with-targets",
-            "DOCKER_TAG": "dev"
-        }
-    },
-    "containerEnv": {
-        "MAKE": "make -j4"
-    },
-    "onCreateCommand": ".devcontainer/onCreate.sh",
-    "updateContentCommand": ".devcontainer/portability-updateContent.sh",
-    "extensions": [
-        "ms-python.python"
-    ]
-}
diff --git a/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-standard/portability-Dockerfile b/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-standard/portability-Dockerfile
deleted file mode 120000
index 692e2a79d64..00000000000
--- a/.devcontainer/portability-ubuntu-trusty-toolchain-gcc_9-standard/portability-Dockerfile
+++ /dev/null
@@ -1 +0,0 @@
-../portability-Dockerfile
\ No newline at end of file
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 970aafd433c..ccc2b07a02f 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -18,7 +18,6 @@ on:
         # 'tox -e update_docker_platforms' updates below
         default: >-
           [
-           "ubuntu-trusty-toolchain-gcc_9",
            "ubuntu-xenial-toolchain-gcc_9",
            "ubuntu-bionic-gcc_8",
            "ubuntu-focal",
@@ -58,8 +57,6 @@ on:
            "gentoo-python3.11",
            "gentoo-python3.12",
            "archlinux-latest",
-           "opensuse-15.3-gcc_11-python3.9",
-           "opensuse-15.4-gcc_11-python3.10",
            "opensuse-15.5-gcc_11-python3.11",
            "opensuse-tumbleweed-python3.10",
            "opensuse-tumbleweed",
diff --git a/src/doc/en/developer/portability_platform_table.rst b/src/doc/en/developer/portability_platform_table.rst
index 7b173a1959c..bf843b0a353 100644
--- a/src/doc/en/developer/portability_platform_table.rst
+++ b/src/doc/en/developer/portability_platform_table.rst
@@ -1,57 +1,3 @@
-.. |image-ubuntu-trusty-toolchain-gcc_9-minimal-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-with-system-packages
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-minimal-configured| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-configured/latest_tag?ignore=latest,dev,*-failed&label=configured&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-configured
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets-pre| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets-pre/latest_tag?ignore=latest,dev,*-failed&label=with-targets-pre&color=%23677895
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets-pre
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets/latest_tag?ignore=latest,dev,*-failed&label=with-targets&color=%236686c1
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets-optional| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets-optional/latest_tag?ignore=latest,dev,*-failed&label=with-targets-optional&color=%236495ed
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets-optional
-
-.. |codespace-ubuntu-trusty-toolchain-gcc_9-minimal| image:: https://github.com/codespaces/badge.svg
-   :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-ubuntu-trusty-toolchain-gcc_9-minimal%2Fdevcontainer.json
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-standard-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-with-system-packages
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-standard-configured| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-configured/latest_tag?ignore=latest,dev,*-failed&label=configured&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-configured
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-standard-with-targets-pre| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-with-targets-pre/latest_tag?ignore=latest,dev,*-failed&label=with-targets-pre&color=%235d8a4c
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-with-targets-pre
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-standard-with-targets| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-with-targets/latest_tag?ignore=latest,dev,*-failed&label=with-targets&color=%2350ab2e
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-with-targets
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-standard-with-targets-optional| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-with-targets-optional/latest_tag?ignore=latest,dev,*-failed&label=with-targets-optional&color=%2344cc11
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-standard-with-targets-optional
-
-.. |codespace-ubuntu-trusty-toolchain-gcc_9-standard| image:: https://github.com/codespaces/badge.svg
-   :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-ubuntu-trusty-toolchain-gcc_9-standard%2Fdevcontainer.json
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-maximal-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-with-system-packages
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-maximal-configured| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-configured/latest_tag?ignore=latest,dev,*-failed&label=configured&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-configured
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets-pre| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets-pre/latest_tag?ignore=latest,dev,*-failed&label=with-targets-pre&color=%238f6b8d
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets-pre
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets/latest_tag?ignore=latest,dev,*-failed&label=with-targets&color=%23b46eb2
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets
-
-.. |image-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets-optional| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets-optional/latest_tag?ignore=latest,dev,*-failed&label=with-targets-optional&color=%23da70d6
-   :target: https://ghcr.io/sagemath/sage/sage-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets-optional
-
-.. |codespace-ubuntu-trusty-toolchain-gcc_9-maximal| image:: https://github.com/codespaces/badge.svg
-   :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-ubuntu-trusty-toolchain-gcc_9-maximal%2Fdevcontainer.json
-
 .. |image-ubuntu-xenial-toolchain-gcc_9-minimal-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-ubuntu-xenial-toolchain-gcc_9-minimal-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
    :target: https://ghcr.io/sagemath/sage/sage-ubuntu-xenial-toolchain-gcc_9-minimal-with-system-packages
 
@@ -2158,114 +2104,6 @@
 .. |codespace-archlinux-latest-maximal| image:: https://github.com/codespaces/badge.svg
    :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-archlinux-latest-maximal%2Fdevcontainer.json
 
-.. |image-opensuse-15.3-gcc_11-python3.9-minimal-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-with-system-packages
-
-.. |image-opensuse-15.3-gcc_11-python3.9-minimal-configured| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-configured/latest_tag?ignore=latest,dev,*-failed&label=configured&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-configured
-
-.. |image-opensuse-15.3-gcc_11-python3.9-minimal-with-targets-pre| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-with-targets-pre/latest_tag?ignore=latest,dev,*-failed&label=with-targets-pre&color=%23677895
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-with-targets-pre
-
-.. |image-opensuse-15.3-gcc_11-python3.9-minimal-with-targets| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-with-targets/latest_tag?ignore=latest,dev,*-failed&label=with-targets&color=%236686c1
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-with-targets
-
-.. |image-opensuse-15.3-gcc_11-python3.9-minimal-with-targets-optional| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-with-targets-optional/latest_tag?ignore=latest,dev,*-failed&label=with-targets-optional&color=%236495ed
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-minimal-with-targets-optional
-
-.. |codespace-opensuse-15.3-gcc_11-python3.9-minimal| image:: https://github.com/codespaces/badge.svg
-   :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-opensuse-15.3-gcc_11-python3.9-minimal%2Fdevcontainer.json
-
-.. |image-opensuse-15.3-gcc_11-python3.9-standard-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-with-system-packages
-
-.. |image-opensuse-15.3-gcc_11-python3.9-standard-configured| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-configured/latest_tag?ignore=latest,dev,*-failed&label=configured&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-configured
-
-.. |image-opensuse-15.3-gcc_11-python3.9-standard-with-targets-pre| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-with-targets-pre/latest_tag?ignore=latest,dev,*-failed&label=with-targets-pre&color=%235d8a4c
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-with-targets-pre
-
-.. |image-opensuse-15.3-gcc_11-python3.9-standard-with-targets| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-with-targets/latest_tag?ignore=latest,dev,*-failed&label=with-targets&color=%2350ab2e
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-with-targets
-
-.. |image-opensuse-15.3-gcc_11-python3.9-standard-with-targets-optional| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-with-targets-optional/latest_tag?ignore=latest,dev,*-failed&label=with-targets-optional&color=%2344cc11
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-standard-with-targets-optional
-
-.. |codespace-opensuse-15.3-gcc_11-python3.9-standard| image:: https://github.com/codespaces/badge.svg
-   :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-opensuse-15.3-gcc_11-python3.9-standard%2Fdevcontainer.json
-
-.. |image-opensuse-15.3-gcc_11-python3.9-maximal-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-with-system-packages
-
-.. |image-opensuse-15.3-gcc_11-python3.9-maximal-configured| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-configured/latest_tag?ignore=latest,dev,*-failed&label=configured&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-configured
-
-.. |image-opensuse-15.3-gcc_11-python3.9-maximal-with-targets-pre| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-with-targets-pre/latest_tag?ignore=latest,dev,*-failed&label=with-targets-pre&color=%238f6b8d
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-with-targets-pre
-
-.. |image-opensuse-15.3-gcc_11-python3.9-maximal-with-targets| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-with-targets/latest_tag?ignore=latest,dev,*-failed&label=with-targets&color=%23b46eb2
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-with-targets
-
-.. |image-opensuse-15.3-gcc_11-python3.9-maximal-with-targets-optional| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-with-targets-optional/latest_tag?ignore=latest,dev,*-failed&label=with-targets-optional&color=%23da70d6
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.3-gcc_11-python3.9-maximal-with-targets-optional
-
-.. |codespace-opensuse-15.3-gcc_11-python3.9-maximal| image:: https://github.com/codespaces/badge.svg
-   :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-opensuse-15.3-gcc_11-python3.9-maximal%2Fdevcontainer.json
-
-.. |image-opensuse-15.4-gcc_11-python3.10-minimal-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-with-system-packages
-
-.. |image-opensuse-15.4-gcc_11-python3.10-minimal-configured| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-configured/latest_tag?ignore=latest,dev,*-failed&label=configured&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-configured
-
-.. |image-opensuse-15.4-gcc_11-python3.10-minimal-with-targets-pre| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-with-targets-pre/latest_tag?ignore=latest,dev,*-failed&label=with-targets-pre&color=%23677895
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-with-targets-pre
-
-.. |image-opensuse-15.4-gcc_11-python3.10-minimal-with-targets| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-with-targets/latest_tag?ignore=latest,dev,*-failed&label=with-targets&color=%236686c1
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-with-targets
-
-.. |image-opensuse-15.4-gcc_11-python3.10-minimal-with-targets-optional| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-with-targets-optional/latest_tag?ignore=latest,dev,*-failed&label=with-targets-optional&color=%236495ed
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-minimal-with-targets-optional
-
-.. |codespace-opensuse-15.4-gcc_11-python3.10-minimal| image:: https://github.com/codespaces/badge.svg
-   :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-opensuse-15.4-gcc_11-python3.10-minimal%2Fdevcontainer.json
-
-.. |image-opensuse-15.4-gcc_11-python3.10-standard-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-with-system-packages
-
-.. |image-opensuse-15.4-gcc_11-python3.10-standard-configured| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-configured/latest_tag?ignore=latest,dev,*-failed&label=configured&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-configured
-
-.. |image-opensuse-15.4-gcc_11-python3.10-standard-with-targets-pre| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-with-targets-pre/latest_tag?ignore=latest,dev,*-failed&label=with-targets-pre&color=%235d8a4c
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-with-targets-pre
-
-.. |image-opensuse-15.4-gcc_11-python3.10-standard-with-targets| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-with-targets/latest_tag?ignore=latest,dev,*-failed&label=with-targets&color=%2350ab2e
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-with-targets
-
-.. |image-opensuse-15.4-gcc_11-python3.10-standard-with-targets-optional| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-with-targets-optional/latest_tag?ignore=latest,dev,*-failed&label=with-targets-optional&color=%2344cc11
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-standard-with-targets-optional
-
-.. |codespace-opensuse-15.4-gcc_11-python3.10-standard| image:: https://github.com/codespaces/badge.svg
-   :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-opensuse-15.4-gcc_11-python3.10-standard%2Fdevcontainer.json
-
-.. |image-opensuse-15.4-gcc_11-python3.10-maximal-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-with-system-packages
-
-.. |image-opensuse-15.4-gcc_11-python3.10-maximal-configured| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-configured/latest_tag?ignore=latest,dev,*-failed&label=configured&color=%23696969
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-configured
-
-.. |image-opensuse-15.4-gcc_11-python3.10-maximal-with-targets-pre| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-with-targets-pre/latest_tag?ignore=latest,dev,*-failed&label=with-targets-pre&color=%238f6b8d
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-with-targets-pre
-
-.. |image-opensuse-15.4-gcc_11-python3.10-maximal-with-targets| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-with-targets/latest_tag?ignore=latest,dev,*-failed&label=with-targets&color=%23b46eb2
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-with-targets
-
-.. |image-opensuse-15.4-gcc_11-python3.10-maximal-with-targets-optional| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-with-targets-optional/latest_tag?ignore=latest,dev,*-failed&label=with-targets-optional&color=%23da70d6
-   :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.4-gcc_11-python3.10-maximal-with-targets-optional
-
-.. |codespace-opensuse-15.4-gcc_11-python3.10-maximal| image:: https://github.com/codespaces/badge.svg
-   :target: https://codespaces.new/sagemath/sage?devcontainer_path=.devcontainer%2Fportability-opensuse-15.4-gcc_11-python3.10-maximal%2Fdevcontainer.json
-
 .. |image-opensuse-15.5-gcc_11-python3.11-minimal-with-system-packages| image:: https://ghcr-badge.egpl.dev/sagemath/sage/sage-opensuse-15.5-gcc_11-python3.11-minimal-with-system-packages/size?tag=dev&label=with-system-packages&color=%23696969
    :target: https://ghcr.io/sagemath/sage/sage-opensuse-15.5-gcc_11-python3.11-minimal-with-system-packages
 
@@ -2598,17 +2436,6 @@
    * - Platform
      - Images
      - 
-   * - **ubuntu**-trusty-toolchain-gcc_9 
-       
-          ‑*minimal*
-     - |image-ubuntu-trusty-toolchain-gcc_9-minimal-with-system-packages| |image-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets-pre| |image-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets| |image-ubuntu-trusty-toolchain-gcc_9-minimal-with-targets-optional|
-     - |codespace-ubuntu-trusty-toolchain-gcc_9-minimal|
-   * -    ‑*standard*
-     - |image-ubuntu-trusty-toolchain-gcc_9-standard-with-system-packages| |image-ubuntu-trusty-toolchain-gcc_9-standard-with-targets-pre| |image-ubuntu-trusty-toolchain-gcc_9-standard-with-targets| |image-ubuntu-trusty-toolchain-gcc_9-standard-with-targets-optional|
-     - |codespace-ubuntu-trusty-toolchain-gcc_9-standard|
-   * -    ‑*maximal*
-     - |image-ubuntu-trusty-toolchain-gcc_9-maximal-with-system-packages| |image-ubuntu-trusty-toolchain-gcc_9-maximal-with-targets-pre|
-     -
    * - **ubuntu**-xenial-toolchain-gcc_9 
        
           ‑*minimal*
@@ -3038,28 +2865,6 @@
    * -    ‑*maximal*
      - |image-archlinux-latest-maximal-with-system-packages| |image-archlinux-latest-maximal-with-targets-pre|
      -
-   * - **opensuse**-15.3-gcc_11-python3.9 
-       
-          ‑*minimal*
-     - |image-opensuse-15.3-gcc_11-python3.9-minimal-with-system-packages| |image-opensuse-15.3-gcc_11-python3.9-minimal-with-targets-pre| |image-opensuse-15.3-gcc_11-python3.9-minimal-with-targets| |image-opensuse-15.3-gcc_11-python3.9-minimal-with-targets-optional|
-     - |codespace-opensuse-15.3-gcc_11-python3.9-minimal|
-   * -    ‑*standard*
-     - |image-opensuse-15.3-gcc_11-python3.9-standard-with-system-packages| |image-opensuse-15.3-gcc_11-python3.9-standard-with-targets-pre| |image-opensuse-15.3-gcc_11-python3.9-standard-with-targets| |image-opensuse-15.3-gcc_11-python3.9-standard-with-targets-optional|
-     - |codespace-opensuse-15.3-gcc_11-python3.9-standard|
-   * -    ‑*maximal*
-     - |image-opensuse-15.3-gcc_11-python3.9-maximal-with-system-packages| |image-opensuse-15.3-gcc_11-python3.9-maximal-with-targets-pre|
-     -
-   * - **opensuse**-15.4-gcc_11-python3.10 
-       
-          ‑*minimal*
-     - |image-opensuse-15.4-gcc_11-python3.10-minimal-with-system-packages| |image-opensuse-15.4-gcc_11-python3.10-minimal-with-targets-pre| |image-opensuse-15.4-gcc_11-python3.10-minimal-with-targets| |image-opensuse-15.4-gcc_11-python3.10-minimal-with-targets-optional|
-     - |codespace-opensuse-15.4-gcc_11-python3.10-minimal|
-   * -    ‑*standard*
-     - |image-opensuse-15.4-gcc_11-python3.10-standard-with-system-packages| |image-opensuse-15.4-gcc_11-python3.10-standard-with-targets-pre| |image-opensuse-15.4-gcc_11-python3.10-standard-with-targets| |image-opensuse-15.4-gcc_11-python3.10-standard-with-targets-optional|
-     - |codespace-opensuse-15.4-gcc_11-python3.10-standard|
-   * -    ‑*maximal*
-     - |image-opensuse-15.4-gcc_11-python3.10-maximal-with-system-packages| |image-opensuse-15.4-gcc_11-python3.10-maximal-with-targets-pre|
-     -
    * - **opensuse**-15.5-gcc_11-python3.11 
        
           ‑*minimal*
diff --git a/tox.ini b/tox.ini
index 941df137195..71a38cfec82 100644
--- a/tox.ini
+++ b/tox.ini
@@ -852,7 +852,7 @@ setenv =
     # Master list of platforms tested in CI Linux
     #
     DEFAULT_SYSTEM_FACTORS=\
-                     ubuntu-{trusty-toolchain-gcc_9,xenial-toolchain-gcc_9,bionic-gcc_8,focal,jammy,lunar,mantic,noble} \
+                     ubuntu-{xenial-toolchain-gcc_9,bionic-gcc_8,focal,jammy,lunar,mantic,noble} \
                      debian-{buster-gcc_spkg,bullseye,bookworm,trixie,sid} \
                      linuxmint-{20.1,20.2,20.3,21,21.1,21.2,21.3} \
                      fedora-{30,31,32,33,34,35,36,37,38,39,40} \
@@ -861,7 +861,7 @@ setenv =
                      almalinux-{8-python3.9,9-python3.11} \
                      gentoo-python{3.10,3.11,3.12} \
                      archlinux-latest \
-                     opensuse-{15.3-gcc_11-python3.9,15.4-gcc_11-python3.10,15.5-gcc_11-python3.11} \
+                     opensuse-15.5-gcc_11-python3.11 \
                      opensuse-tumbleweed{-python3.10,} \
                      conda-forge-python3.11 \
                      ubuntu-bionic-gcc_8-i386 \