diff --git a/.github/config/sagemaker-xgboost.yml b/.github/config/sagemaker-xgboost.yml
index 3a9097bf589f..c945df395d69 100644
--- a/.github/config/sagemaker-xgboost.yml
+++ b/.github/config/sagemaker-xgboost.yml
@@ -22,9 +22,9 @@ common:
 
 # Release configuration
 release:
-  release: true
+  release: false
   force_release: false
-  public_registry: true
+  public_registry: false
   private_registry: true
   enable_soci: false
-  environment: gamma
+  environment: preprod
diff --git a/.github/workflows/release-sagemaker-xgboost.yml b/.github/workflows/release-sagemaker-xgboost.yml
index 5a8915355aa9..e7798f602d25 100644
--- a/.github/workflows/release-sagemaker-xgboost.yml
+++ b/.github/workflows/release-sagemaker-xgboost.yml
@@ -107,29 +107,24 @@ jobs:
     steps:
       - name: Checkout DLC source
         uses: actions/checkout@v5
-
       - name: Clone sagemaker-xgboost-container
         run: rm -rf /tmp/xgboost-unit && git clone --depth 1 ${{ env.XGBOOST_CONTAINER_REPO }} /tmp/xgboost-unit
-
       - name: ECR login
         uses: ./.github/actions/ecr-authenticate
         with:
           aws-account-id: ${{ vars.CI_AWS_ACCOUNT_ID }}
           aws-region: ${{ vars.AWS_REGION }}
           image-uri: ${{ needs.build-image.outputs.ci-image }}
-
       - name: Build test image
         run: |
           CI_IMAGE_URI="${{ needs.build-image.outputs.ci-image }}"
           cd /tmp/xgboost-unit
           printf "FROM ${CI_IMAGE_URI}\nADD . /app\nWORKDIR /app\nRUN python3 -m pip install .[test]" > Dockerfile.test
           docker build -t test-xgboost -f Dockerfile.test .
-
       - name: Run unit tests
         run: |
           docker run --rm test-xgboost sh -c \
             'python3 -m pytest --cov=sagemaker_xgboost_container --cov-fail-under=60 test/unit'
-
       - name: Run flake8
         run: |
           docker run --rm test-xgboost sh -c 'python3 -m flake8 setup.py src test'
@@ -157,4 +152,45 @@ jobs:
       aws-account-id: ${{ vars.CI_AWS_ACCOUNT_ID }}
       aws-region: ${{ vars.AWS_REGION }}
 
-  # TODO: Add generate-release-spec and release-image jobs when release is ready
+  generate-release-spec:
+    needs: [load-config, build-image, unit-test, security-test, xgboost-tests]
+    runs-on: ubuntu-latest
+    concurrency:
+      group: ${{ github.workflow }}-generate-release-spec-${{ github.run_id }}
+      cancel-in-progress: true
+    outputs:
+      release-spec: ${{ steps.generate.outputs.release-spec }}
+      should-release: ${{ steps.check-release.outputs.should-release }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Check if release is enabled
+        id: check-release
+        run: |
+          echo '${{ needs.load-config.outputs.config }}' > config.json
+          RELEASE_ENABLED=$(jq -r '.release.release // false' config.json)
+          echo "Release enabled: ${RELEASE_ENABLED}"
+          echo "should-release=${RELEASE_ENABLED}" >> $GITHUB_OUTPUT
+
+      - name: Generate release spec
+        id: generate
+        if: steps.check-release.outputs.should-release == 'true'
+        uses: ./.github/actions/generate-release-spec
+        with:
+          config-json: ${{ needs.load-config.outputs.config }}
+
+  release-image:
+    needs: [load-config, build-image, generate-release-spec]
+    if: needs.generate-release-spec.outputs.should-release == 'true'
+    concurrency:
+      group: ${{ github.workflow }}-release-image-${{ github.run_id }}
+      cancel-in-progress: true
+    uses: ./.github/workflows/reusable-release-image.yml
+    with:
+      source-image-uri: ${{ needs.build-image.outputs.ci-image }}
+      release-spec: ${{ needs.generate-release-spec.outputs.release-spec }}
+      environment: ${{ fromJson(needs.load-config.outputs.config).release.environment }}
+      aws-region: ${{ vars.AWS_REGION }}
+      runner-fleet: default-runner
+    secrets: inherit
diff --git a/.github/workflows/reusable-release-image.yml b/.github/workflows/reusable-release-image.yml
index 24f9ad84aa4a..7940599d1236 100644
--- a/.github/workflows/reusable-release-image.yml
+++ b/.github/workflows/reusable-release-image.yml
@@ -52,9 +52,9 @@ jobs:
           ENVIRONMENT="${{ inputs.environment }}"
 
           # Validate environment input
-          if [[ "${ENVIRONMENT}" != "gamma" && "${ENVIRONMENT}" != "production" ]]; then
+          if [[ "${ENVIRONMENT}" != "gamma" && "${ENVIRONMENT}" != "production" && "${ENVIRONMENT}" != "preprod" ]]; then
             echo "❌ ERROR: Invalid environment '${ENVIRONMENT}'"
-            echo "Valid environments: gamma, production"
+            echo "Valid environments: gamma, preprod, production"
             exit 1
           fi