diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 617ed81867..d25831a167 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -43,7 +43,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-build.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-build.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type || 'branch' }}
       node_type: cpu16
@@ -61,7 +61,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@test-gb300
     with:
       arch: "amd64"
       branch: ${{ inputs.branch }}
@@ -101,7 +101,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-build.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-build.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type || 'branch' }}
       branch: ${{ inputs.branch }}
@@ -119,7 +119,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-upload-packages.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-upload-packages.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type || 'branch' }}
       branch: ${{ inputs.branch }}
@@ -133,7 +133,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type || 'branch' }}
       branch: ${{ inputs.branch }}
@@ -154,7 +154,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-publish.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-publish.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type || 'branch' }}
       branch: ${{ inputs.branch }}
@@ -172,7 +172,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type || 'branch' }}
       branch: ${{ inputs.branch }}
@@ -193,7 +193,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-publish.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-publish.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type || 'branch' }}
       branch: ${{ inputs.branch }}
@@ -205,7 +205,7 @@ jobs:
   devcontainers:
     name: Build devcontainers
     secrets: inherit  # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/build-devcontainers.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/build-devcontainers.yaml@test-gb300
     permissions:
       packages: write
     with:
diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 2b342a72c7..94c76982e8 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -40,7 +40,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/pr-builder.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/pr-builder.yaml@test-gb300
     if: always()
     with:
       needs: ${{ toJSON(needs) }}
@@ -83,7 +83,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/changed-files.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/changed-files.yaml@test-gb300
     with:
       files_yaml: |
         build_docs:
@@ -279,7 +279,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/checks.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/checks.yaml@test-gb300
     with:
       enable_check_generated_files: false
       ignored_pr_jobs: >-
@@ -293,7 +293,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@test-gb300
     with:
       build_type: pull-request
       node_type: "cpu8"
@@ -309,7 +309,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-build.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-build.yaml@test-gb300
     with:
       build_type: pull-request
       node_type: cpu16
@@ -323,7 +323,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-tests.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_cpp
     with:
       build_type: pull-request
@@ -337,7 +337,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-post-build-checks.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-post-build-checks.yaml@test-gb300
     with:
       build_type: pull-request
       package_name: libcuml
@@ -350,7 +350,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-build.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-build.yaml@test-gb300
     with:
       build_type: pull-request
       script: ci/build_python.sh
@@ -365,13 +365,13 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_python_conda
     with:
       build_type: pull-request
       script: "ci/test_python_singlegpu.sh"
       # https://github.com/rapidsai/cuml/issues/8430
-      matrix_filter: map(select(.GPU != "gb300"))
+      # matrix_filter: map(select(.GPU != "gb300"))
   conda-python-tests-cudf-pandas-integration:
     needs: [conda-python-build, changed-files]
     permissions:
@@ -381,7 +381,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_python_conda
     with:
       # Select the amd64 entry with the highest CUDA and Python version
@@ -397,7 +397,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_python_conda
     with:
       build_type: pull-request
@@ -411,7 +411,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_python_conda
     with:
       build_type: pull-request
@@ -419,12 +419,12 @@ jobs:
       # One run for each dependencies config on amd64, breaking ties by highest Python version
       matrix_filter: |
         (
-          map(select(.ARCH == "amd64"))
+          map(select(.ARCH == "arm64"))
           | sort_by(.PY_VER)
           | unique_by(.DEPENDENCIES)
         )
           + (
-          map(select(.ARCH == "amd64"))
+          map(select(.ARCH == "arm64"))
           | map(select(.DEPENDENCIES == "oldest"))
           | sort_by(.PY_VER)
           | map(.DEPENDENCIES = "intermediate")
@@ -438,13 +438,13 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_python_conda
     with:
       build_type: pull-request
       script: "ci/test_python_cuml_accel_upstream.sh"
       # One run for each dependencies config on amd64, breaking ties by highest Python version
-      matrix_filter: map(select(.ARCH == "amd64")) | sort_by(.PY_VER) | unique_by(.DEPENDENCIES)
+      matrix_filter: map(select(.ARCH == "arm64")) | sort_by(.PY_VER) | unique_by(.DEPENDENCIES)
   conda-notebook-tests:
     needs: [conda-python-build, changed-files]
     permissions:
@@ -454,7 +454,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_notebooks
     with:
       build_type: pull-request
@@ -471,7 +471,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).build_docs
     with:
       build_type: pull-request
@@ -508,7 +508,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@test-gb300
     with:
       build_type: pull-request
       branch: ${{ inputs.branch }}
@@ -529,7 +529,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@test-gb300
     with:
       build_type: pull-request
       node_type: cpu8
@@ -547,13 +547,13 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_python_wheels
     with:
       build_type: pull-request
       script: ci/test_wheel.sh
       # https://github.com/rapidsai/cuml/issues/8430
-      matrix_filter: map(select(.GPU != "gb300"))
+      # matrix_filter: map(select(.GPU != "gb300"))
   wheel-tests-cuml-dask:
     needs: [wheel-build-cuml, changed-files]
     permissions:
@@ -563,7 +563,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@test-gb300
     if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_python_wheels
     with:
       build_type: pull-request
@@ -577,7 +577,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/build-in-devcontainer.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/build-in-devcontainer.yaml@test-gb300
     with:
       arch: '["amd64", "arm64"]'
       cuda: '["13.3"]'
diff --git a/.github/workflows/pr_issue_status_automation.yml b/.github/workflows/pr_issue_status_automation.yml
index 346aa47fe4..044e6ea06c 100644
--- a/.github/workflows/pr_issue_status_automation.yml
+++ b/.github/workflows/pr_issue_status_automation.yml
@@ -13,7 +13,7 @@ permissions: {}
 
 jobs:
   get-project-id:
-    uses: rapidsai/shared-workflows/.github/workflows/project-get-item-id.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/project-get-item-id.yaml@test-gb300
     if: github.event.pull_request.state == 'open'
     permissions:
       actions: read
@@ -28,7 +28,7 @@ jobs:
 
   update-status:
     # This job sets the PR and its linked issues to "In Progress" status
-    uses: rapidsai/shared-workflows/.github/workflows/project-get-set-single-select-field.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/project-get-set-single-select-field.yaml@test-gb300
     if: ${{ github.event.pull_request.state == 'open' && (github.event.action == 'opened' || github.event.action == 'edited' || github.event.action == 'synchronize') && needs.get-project-id.outputs.ITEM_PROJECT_ID != '' }}
     needs: get-project-id
     permissions:
@@ -80,7 +80,7 @@ jobs:
   update-release:
     # This job sets the PR's Release field based on the target branch
     # Only sets the field if it is not already set.
-    uses: rapidsai/shared-workflows/.github/workflows/project-get-set-single-select-field.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/project-get-set-single-select-field.yaml@test-gb300
     if: ${{ github.event.pull_request.state == 'open' && needs.get-project-id.outputs.ITEM_PROJECT_ID != '' && needs.get-release-version.outputs.release-version != '' }}
     needs: [get-project-id, get-release-version]
     permissions:
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 58176401ec..a6724d0db3 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -33,7 +33,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-post-build-checks.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-post-build-checks.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -48,7 +48,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-cpp-tests.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -63,7 +63,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -80,7 +80,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -95,7 +95,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -124,7 +124,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -141,7 +141,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/conda-python-tests.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -158,7 +158,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/custom-job.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -175,7 +175,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -192,7 +192,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -215,7 +215,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
@@ -230,7 +230,7 @@ jobs:
       packages: read
       pull-requests: read
     secrets: inherit # zizmor: ignore[secrets-inherit]
-    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@test-gb300
     with:
       build_type: ${{ inputs.build_type }}
       branch: ${{ inputs.branch }}
diff --git a/.github/workflows/trigger-breaking-change-alert.yaml b/.github/workflows/trigger-breaking-change-alert.yaml
index 5a92e2c761..59f42fd5f9 100644
--- a/.github/workflows/trigger-breaking-change-alert.yaml
+++ b/.github/workflows/trigger-breaking-change-alert.yaml
@@ -18,7 +18,7 @@ jobs:
     if: contains(github.event.pull_request.labels.*.name, 'breaking')
     permissions:
       contents: read
-    uses: rapidsai/shared-workflows/.github/workflows/breaking-change-alert.yaml@main
+    uses: rapidsai/shared-workflows/.github/workflows/breaking-change-alert.yaml@test-gb300
     secrets:
       slack-webhook-url: ${{ secrets.NV_SLACK_BREAKING_CHANGE_NOTIFIER_APP }}
     with: