diff --git a/.github/workflows/build-and-deploy.yml b/.github/workflows/build-and-deploy.yml
index ba84a70e..60ed0099 100644
--- a/.github/workflows/build-and-deploy.yml
+++ b/.github/workflows/build-and-deploy.yml
@@ -12,6 +12,9 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - python-version: "3.9"
+            python-tag: "39"
+            architecture: "AMD64"
           - python-version: "3.10"
             python-tag: "310"
             architecture: "AMD64"
@@ -37,7 +40,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
     uses: ./.github/workflows/build-linux-wheel.yml
     with:
       python-version: ${{ matrix.python-version }}
@@ -48,6 +51,9 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - python-version: "3.9"
+            python-tag: "39"
+            architecture: "AMD64"
           - python-version: "3.10"
             python-tag: "310"
             architecture: "AMD64"
@@ -72,7 +78,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
     uses: ./.github/workflows/test-linux-wheel.yml
     with:
       python-version: ${{ matrix.python-version }}
diff --git a/.github/workflows/build-linux-wheel.yml b/.github/workflows/build-linux-wheel.yml
index e6703006..810b79c7 100644
--- a/.github/workflows/build-linux-wheel.yml
+++ b/.github/workflows/build-linux-wheel.yml
@@ -21,6 +21,7 @@ on:
         required: true
         type: choice
         options:
+          - '3.9'
           - '3.10'
           - '3.11'
           - '3.12'
diff --git a/.github/workflows/build-windows-wheel.yml b/.github/workflows/build-windows-wheel.yml
index 8160d52e..909f3304 100644
--- a/.github/workflows/build-windows-wheel.yml
+++ b/.github/workflows/build-windows-wheel.yml
@@ -19,6 +19,7 @@ on:
         required: true
         type: choice
         options:
+          - '3.9'
           - '3.10'
           - '3.11'
           - '3.12'
@@ -30,6 +31,7 @@ on:
         required: true
         type: choice
         options:
+          - '39'
           - '310'
           - '311'
           - '312'
diff --git a/.github/workflows/test-all-versions.yml b/.github/workflows/test-all-versions.yml
index c59e6727..3b62f110 100644
--- a/.github/workflows/test-all-versions.yml
+++ b/.github/workflows/test-all-versions.yml
@@ -1,186 +1,232 @@
-name: Test All Versions
-
+name: Build and Deploy Packages
 on:
+  push:
+    tags:
+      - 'v[0-9]*'
+      - feature/ci_test
   workflow_dispatch:
-  schedule:
-    # Run daily at 2 AM UTC
-    - cron: '0 2 * * *'
 
 jobs:
-  build-linux-asan:
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
-    uses: ./.github/workflows/build-linux-wheel.yml
-    with:
-      python-version: ${{ matrix.python-version }}
-      build-args: '--config-setting=setup-args=-Denable_sanitizers=true'
-      timeout-minutes: 60
-
-  build-windows:
+  wheels-windows:
+    runs-on: windows-latest
     strategy:
       fail-fast: false
       matrix:
         include:
           - python-version: "3.10"
             python-tag: "310"
+            architecture: "AMD64"
           - python-version: "3.11"
             python-tag: "311"
+            architecture: "AMD64"
           - python-version: "3.12"
             python-tag: "312"
+            architecture: "AMD64"
           - python-version: "3.13"
             python-tag: "313"
+            architecture: "AMD64"
           - python-version: "3.14"
             python-tag: "314"
-    uses: ./.github/workflows/build-windows-wheel.yml
-    with:
-      python-version: ${{ matrix.python-version }}
-      python-tag: ${{ matrix.python-tag }}
-      architecture: 'AMD64'
+            architecture: "AMD64"
+            
+
 
-  test-linux-unit-asan:
-    needs: build-linux-asan
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
-    runs-on: ubuntu-latest
-    timeout-minutes: 20
     steps:
       - uses: actions/checkout@v4
-      
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      
-      - name: Download wheel artifact
-        uses: actions/download-artifact@v4
+      - uses: bus1/cabuild/action/msdevshell@v1
         with:
-          name: wheels-linux-${{ matrix.python-version }}
-          path: ./wheels/
-      
-      - name: Install wheel and dependencies
+          architecture: x64
+        if: matrix.architecture == 'AMD64'
+      - uses: bus1/cabuild/action/msdevshell@v1
+        with:
+          architecture: x86
+        if: matrix.architecture == 'x86'
+      - name: Generate meson files
         run: |
-          pip install pytest
-          pip install -r requirements.txt
-          pip install ./wheels/*.whl
+          python scripts/generate_meson.py ./src/dbzero/ core
+          python scripts/generate_meson_tests.py tests/
+          python scripts/generate_meson_dbzero.py dbzero/
       
-      - name: Run unit tests with ASAN
+      - name: Configure git
         run: |
-          LD_PRELOAD=$(gcc -print-file-name=libasan.so) python -m pytest -m 'not integration_test' -m 'not stress_test' -c pytest.ini --capture=no -vv
+          git config --global user.email "ci@example.com"
+          git config --global user.name "CI Builder"
+          rm  .gitignore
+          git add . && git commit -m "Update meson files for build"  
+      
+      - run: pip3 install pipx
+      - run: pipx run cibuildwheel
+        env:
+          CIBW_BUILD: cp${{ matrix.python-tag }}-*
+          CIBW_ARCHS_WINDOWS: ${{ matrix.architecture }}
+      - uses: actions/upload-artifact@v4
+        with:
+          name: wheels-windows-${{ matrix.python-version }}
+          path: wheelhouse/*.whl
 
-  test-linux-stress-asan:
-    needs: build-linux-asan
+  wheels-linux:
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
-    runs-on: ubuntu-latest
-    timeout-minutes: 60
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
       - uses: actions/checkout@v4
-      
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      
-      - name: Download wheel artifact
-        uses: actions/download-artifact@v4
+      - uses: actions/checkout@v3
+      - run: python3 scripts/generate_meson.py ./src/dbzero/ core
+      - run: python3 scripts/generate_meson_tests.py tests/
+      - run: python3 scripts/generate_meson_dbzero.py dbzero/
+      - run: git config --global user.email "you@example.com"
+      - run: git config --global user.name "Your Name"
+      - run: rm .gitignore
+      - run: git add . && git commit -m "Update meson files"
+      - run: pip install build
+      - run: python3 -m build
+        env:
+          CIBW_SKIP: pp* cp36-* *-musllinux*
+          CIBW_ARCHS_MACOS: x86_64 arm64
+          CIBW_ARCHS_LINUX: x86_64 aarch64
+          CIBW_ARCHS_WINDOWS: ${{ matrix.architecture }}
+
+      - uses: actions/upload-artifact@v4
         with:
           name: wheels-linux-${{ matrix.python-version }}
-          path: ./wheels/
-      
-      - name: Install wheel and dependencies
-        run: |
-          pip install pytest
-          pip install -r requirements.txt
-          pip install ./wheels/*.whl
-      
-      - name: Run stress tests with ASAN
-        run: |
-          LD_PRELOAD=$(gcc -print-file-name=libasan.so) python -m pytest -m 'stress_test' -c pytest.ini --capture=no -vv
+          path: dist/*.whl
 
-  test-windows-unit:
-    needs: build-windows
+  test-wheels-windows:
+    runs-on: windows-latest
+    needs: wheels-windows
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
-    runs-on: windows-latest
-    timeout-minutes: 20
+        include:
+          - python-version: "3.9"
+            python-tag: "39"
+            architecture: "AMD64"
+          - python-version: "3.10"
+            python-tag: "310"
+            architecture: "AMD64"
+          - python-version: "3.11"
+            python-tag: "311"
+            architecture: "AMD64"
+          - python-version: "3.12"
+            python-tag: "312"
+            architecture: "AMD64"
+          - python-version: "3.13"
+            python-tag: "313"
+            architecture: "AMD64"
+          - python-version: "3.14"
+            python-tag: "314"
+            architecture: "AMD64"
     steps:
       - uses: actions/checkout@v4
-      
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      
       - name: Download wheel artifact
         uses: actions/download-artifact@v4
         with:
           name: wheels-windows-${{ matrix.python-version }}
           path: ./wheels/
-      
       - name: Install wheel and dependencies
         run: |
           pip install pytest
           pip install -r requirements.txt
           Get-ChildItem -Path "./wheels/*.whl" | ForEach-Object { pip install $_.FullName }
         shell: powershell
-      
-      - name: Run unit tests
+      - name: Run tests
         run: |
           python -m pytest -m 'not integration_test' -m 'not stress_test' -c pytest.ini --capture=no -vv
 
-  test-windows-stress:
-    needs: build-windows
+  test-wheels-linux:
+    runs-on: ubuntu-latest
+    needs: wheels-linux
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
-    runs-on: windows-latest
-    timeout-minutes: 60
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+    
     steps:
       - uses: actions/checkout@v4
-      
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      
       - name: Download wheel artifact
         uses: actions/download-artifact@v4
         with:
-          name: wheels-windows-${{ matrix.python-version }}
+          name: wheels-linux-${{ matrix.python-version }}
           path: ./wheels/
-      
       - name: Install wheel and dependencies
         run: |
           pip install pytest
           pip install -r requirements.txt
-          Get-ChildItem -Path "./wheels/*.whl" | ForEach-Object { pip install $_.FullName }
-        shell: powershell
-      
-      - name: Run stress tests
+          pip install ./wheels/*.whl
+      - name: Run tests
         run: |
-          python -m pytest -m 'stress_test' -c pytest.ini --capture=no -vv
+          python -m pytest -m 'not integration_test' -m 'not stress_test' -c pytest.ini --capture=no -vv
 
-  summary:
-    needs: [test-linux-unit-asan, test-linux-stress-asan, test-windows-unit, test-windows-stress]
+  sdist:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Generate meson files
+        run: |
+          python scripts/generate_meson.py ./src/dbzero/ core
+          python scripts/generate_meson_tests.py tests/
+          python scripts/generate_meson_dbzero.py dbzero/
+      
+      - name: Configure git
+        run: |
+          git config --global user.email "ci@example.com"
+          git config --global user.name "CI Builder"
+          rm -f .gitignore
+          git add . && git commit -m "Update meson files for build"  
+      - run: python -m pip install build meson
+      - run: python -m build --sdist
+      - uses: actions/upload-artifact@v4
+        with:
+          name: sdist
+          path: dist/*.tar.gz
+  
+  deploy-to-pypi:
+    name: Deploy to PyPI (Manual)
     runs-on: ubuntu-latest
-    if: always()
+    needs: [sdist, test-wheels-linux, test-wheels-windows]
+    if: github.event_name == 'workflow_dispatch'
+    environment: pypi-deployment
+    permissions:
+      id-token: write
+      contents: read
     steps:
-      - name: Test Summary
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: ./dist/
+      
+      - name: Flatten artifact structure
         run: |
-          echo "## Test Results Summary" >> $GITHUB_STEP_SUMMARY
-          echo "" >> $GITHUB_STEP_SUMMARY
-          echo "All tests completed across all Python versions (3.10-3.14) on both Linux (with ASAN) and Windows." >> $GITHUB_STEP_SUMMARY
-          echo "" >> $GITHUB_STEP_SUMMARY
-          echo "- Linux Unit Tests: ${{ needs.test-linux-unit-asan.result }}" >> $GITHUB_STEP_SUMMARY
-          echo "- Linux Stress Tests: ${{ needs.test-linux-stress-asan.result }}" >> $GITHUB_STEP_SUMMARY
-          echo "- Windows Unit Tests: ${{ needs.test-windows-unit.result }}" >> $GITHUB_STEP_SUMMARY
-          echo "- Windows Stress Tests: ${{ needs.test-windows-stress.result }}" >> $GITHUB_STEP_SUMMARY
+          mkdir -p ./upload/
+          find ./dist/ -name "*.whl" -exec cp {} ./upload/ \;
+          find ./dist/ -name "*.tar.gz" -exec cp {} ./upload/ \;
+          ls -la ./upload/
+      
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://nexus.dbzero.io/repository/dbzero_hosted/
+          user: admin
+          password: ${{ secrets.PYPI_API_PASSWORD }}
+          packages-dir: ./upload/
+          verbose: true
+          skip-existing: true
+          attestations: false
diff --git a/.github/workflows/test-linux-wheel.yml b/.github/workflows/test-linux-wheel.yml
index f9bb423b..f8f2cf3f 100644
--- a/.github/workflows/test-linux-wheel.yml
+++ b/.github/workflows/test-linux-wheel.yml
@@ -25,6 +25,7 @@ on:
         required: true
         type: choice
         options:
+          - '3.9'
           - '3.10'
           - '3.11'
           - '3.12'
@@ -51,6 +52,8 @@ jobs:
   test-wheels-linux:
     runs-on: ubuntu-latest
     timeout-minutes: ${{ inputs.timeout-minutes }}
+    env:
+      REQUIREMENTS_FILE: ${{ inputs.python-version == '3.9' && 'requirements.3.9.txt' || 'requirements.txt' }}
     steps:
       - uses: actions/checkout@v4
       
@@ -68,7 +71,7 @@ jobs:
       - name: Install wheel and dependencies
         run: |
           pip install pytest
-          pip install -r requirements.txt
+          pip install -r $REQUIREMENTS_FILE
           pip install ./wheels/*.whl
       
       - name: Run tests
diff --git a/.github/workflows/test-windows-wheel.yml b/.github/workflows/test-windows-wheel.yml
index 21c1e72c..05c0e0f4 100644
--- a/.github/workflows/test-windows-wheel.yml
+++ b/.github/workflows/test-windows-wheel.yml
@@ -13,6 +13,7 @@ on:
         required: true
         type: choice
         options:
+          - '3.9'
           - '3.10'
           - '3.11'
           - '3.12'
@@ -23,6 +24,8 @@ on:
 jobs:
   test-windows:
     runs-on: windows-latest
+    env:
+      REQUIREMENTS_FILE: ${{ inputs.python-version == '3.9' && 'requirements.3.9.txt' || 'requirements.txt' }}
     steps:
       - uses: actions/checkout@v4
       
@@ -40,7 +43,7 @@ jobs:
       - name: Install wheel and dependencies
         run: |
           pip install pytest
-          pip install -r requirements.txt
+          pip install -r $env:REQUIREMENTS_FILE
           Get-ChildItem -Path "./wheels/*.whl" | ForEach-Object { pip install $_.FullName }
         shell: powershell
       
diff --git a/.github/workflows/test_all_versions.yml b/.github/workflows/test_all_versions.yml
new file mode 100644
index 00000000..e40d92b6
--- /dev/null
+++ b/.github/workflows/test_all_versions.yml
@@ -0,0 +1,236 @@
+name: Build and Deploy Packages
+on:
+  push:
+    tags:
+      - 'v[0-9]*'
+      - feature/ci_test
+  workflow_dispatch:
+
+jobs:
+  wheels-windows:
+    runs-on: windows-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - python-version: "3.10"
+            python-tag: "310"
+            architecture: "AMD64"
+          - python-version: "3.11"
+            python-tag: "311"
+            architecture: "AMD64"
+          - python-version: "3.12"
+            python-tag: "312"
+            architecture: "AMD64"
+          - python-version: "3.13"
+            python-tag: "313"
+            architecture: "AMD64"
+          - python-version: "3.14"
+            python-tag: "314"
+            architecture: "AMD64"
+            
+
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - uses: bus1/cabuild/action/msdevshell@v1
+        with:
+          architecture: x64
+        if: matrix.architecture == 'AMD64'
+      - uses: bus1/cabuild/action/msdevshell@v1
+        with:
+          architecture: x86
+        if: matrix.architecture == 'x86'
+      - name: Generate meson files
+        run: |
+          python scripts/generate_meson.py ./src/dbzero/ core
+          python scripts/generate_meson_tests.py tests/
+          python scripts/generate_meson_dbzero.py dbzero/
+      
+      - name: Configure git
+        run: |
+          git config --global user.email "ci@example.com"
+          git config --global user.name "CI Builder"
+          rm  .gitignore
+          git add . && git commit -m "Update meson files for build"  
+      
+      - run: pip3 install pipx
+      - run: pipx run cibuildwheel
+        env:
+          CIBW_BUILD: cp${{ matrix.python-tag }}-*
+          CIBW_ARCHS_WINDOWS: ${{ matrix.architecture }}
+      - uses: actions/upload-artifact@v4
+        with:
+          name: wheels-windows-${{ matrix.python-version }}
+          path: wheelhouse/*.whl
+
+  wheels-linux:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - uses: actions/checkout@v3
+      - run: python3 scripts/generate_meson.py ./src/dbzero/ core
+      - run: python3 scripts/generate_meson_tests.py tests/
+      - run: python3 scripts/generate_meson_dbzero.py dbzero/
+      - run: git config --global user.email "you@example.com"
+      - run: git config --global user.name "Your Name"
+      - run: rm .gitignore
+      - run: git add . && git commit -m "Update meson files"
+      - run: pip install build
+      - run: python3 -m build
+        env:
+          CIBW_SKIP: pp* cp36-* *-musllinux*
+          CIBW_ARCHS_MACOS: x86_64 arm64
+          CIBW_ARCHS_LINUX: x86_64 aarch64
+          CIBW_ARCHS_WINDOWS: ${{ matrix.architecture }}
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: wheels-linux-${{ matrix.python-version }}
+          path: dist/*.whl
+
+  test-wheels-windows:
+    runs-on: windows-latest
+    needs: wheels-windows
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - python-version: "3.9"
+            python-tag: "39"
+            architecture: "AMD64"
+          - python-version: "3.10"
+            python-tag: "310"
+            architecture: "AMD64"
+          - python-version: "3.11"
+            python-tag: "311"
+            architecture: "AMD64"
+          - python-version: "3.12"
+            python-tag: "312"
+            architecture: "AMD64"
+          - python-version: "3.13"
+            python-tag: "313"
+            architecture: "AMD64"
+          - python-version: "3.14"
+            python-tag: "314"
+            architecture: "AMD64"
+    env:
+      REQUIREMENTS_FILE: ${{ matrix.python-version == '3.9' && 'requirements.3.9.txt' || 'requirements.txt' }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Download wheel artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: wheels-windows-${{ matrix.python-version }}
+          path: ./wheels/
+      - name: Install wheel and dependencies
+        run: |
+          pip install pytest
+          pip install -r $env:REQUIREMENTS_FILE
+          Get-ChildItem -Path "./wheels/*.whl" | ForEach-Object { pip install $_.FullName }
+        shell: powershell
+      - name: Run tests
+        run: |
+          python -m pytest -m 'not integration_test' -m 'not stress_test' -c pytest.ini --capture=no -vv
+
+  test-wheels-linux:
+    runs-on: ubuntu-latest
+    needs: wheels-linux
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+    env:
+      REQUIREMENTS_FILE: ${{ matrix.python-version == '3.9' && 'requirements.3.9.txt' || 'requirements.txt' }}
+    
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Download wheel artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: wheels-linux-${{ matrix.python-version }}
+          path: ./wheels/
+      - name: Install wheel and dependencies
+        run: |
+          pip install pytest
+          pip install -r $REQUIREMENTS_FILE
+          pip install ./wheels/*.whl
+      - name: Run tests
+        run: |
+          python -m pytest -m 'not integration_test' -m 'not stress_test' -c pytest.ini --capture=no -vv
+
+  sdist:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Generate meson files
+        run: |
+          python scripts/generate_meson.py ./src/dbzero/ core
+          python scripts/generate_meson_tests.py tests/
+          python scripts/generate_meson_dbzero.py dbzero/
+      
+      - name: Configure git
+        run: |
+          git config --global user.email "ci@example.com"
+          git config --global user.name "CI Builder"
+          rm -f .gitignore
+          git add . && git commit -m "Update meson files for build"  
+      - run: python -m pip install build meson
+      - run: python -m build --sdist
+      - uses: actions/upload-artifact@v4
+        with:
+          name: sdist
+          path: dist/*.tar.gz
+  
+  deploy-to-pypi:
+    name: Deploy to PyPI (Manual)
+    runs-on: ubuntu-latest
+    needs: [sdist, test-wheels-linux, test-wheels-windows]
+    if: github.event_name == 'workflow_dispatch'
+    environment: pypi-deployment
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: ./dist/
+      
+      - name: Flatten artifact structure
+        run: |
+          mkdir -p ./upload/
+          find ./dist/ -name "*.whl" -exec cp {} ./upload/ \;
+          find ./dist/ -name "*.tar.gz" -exec cp {} ./upload/ \;
+          ls -la ./upload/
+      
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://nexus.dbzero.io/repository/dbzero_hosted/
+          user: admin
+          password: ${{ secrets.PYPI_API_PASSWORD }}
+          packages-dir: ./upload/
+          verbose: true
+          skip-existing: true
+          attestations: false
diff --git a/Dockerfile-python-308 b/Dockerfile-python-308
new file mode 100644
index 00000000..1f2658fb
--- /dev/null
+++ b/Dockerfile-python-308
@@ -0,0 +1,40 @@
+FROM python:3.8-bullseye
+# Install dependencies and clean up
+RUN apt-get update && apt-get install -y \
+    cmake \
+    psmisc \
+    python3-pip \
+    python3-dbg \
+    gdb \
+    screen \
+    rsync \
+    meson \
+    ninja-build \
+    python3-venv \
+    gettext-base \
+    valgrind \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Python packages
+RUN pip3 install --break-system-packages --no-cache-dir build
+
+RUN ulimit -c unlimited
+# RUN mkdir -p "$(cat /proc/sys/kernel/core_pattern | sed 's/%.*//')"
+# RUN chmod 777 "$(cat /proc/sys/kernel/core_pattern | sed 's/%.*//')"
+
+# Copy application files and install Python requirements
+COPY requirements.3.8.txt /usr/src/dbzero/
+RUN pip3 install --break-system-packages --no-cache-dir -r /usr/src/dbzero/requirements.3.8.txt --upgrade
+
+COPY . /usr/src/dbzero
+WORKDIR /usr/src/dbzero
+
+# Build and install
+RUN python3 scripts/generate_meson.py ./src/dbzero/ core
+RUN python3 scripts/generate_meson_tests.py tests/ 
+#RUN ./build.sh
+# WORKDIR /usr/src/dbzero/build/debug/
+# RUN meson install
+
+#WORKDIR /usr/src/dbzero
diff --git a/Dockerfile-python-309 b/Dockerfile-python-309
new file mode 100644
index 00000000..d575e810
--- /dev/null
+++ b/Dockerfile-python-309
@@ -0,0 +1,40 @@
+FROM python:3.9-bullseye
+# Install dependencies and clean up
+RUN apt-get update && apt-get install -y \
+    cmake \
+    psmisc \
+    python3-pip \
+    python3-dbg \
+    gdb \
+    screen \
+    rsync \
+    meson \
+    ninja-build \
+    python3-venv \
+    gettext-base \
+    valgrind \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Python packages
+RUN pip3 install --break-system-packages --no-cache-dir build
+
+RUN ulimit -c unlimited
+# RUN mkdir -p "$(cat /proc/sys/kernel/core_pattern | sed 's/%.*//')"
+# RUN chmod 777 "$(cat /proc/sys/kernel/core_pattern | sed 's/%.*//')"
+
+# Copy application files and install Python requirements
+COPY requirements.3.9.txt /usr/src/dbzero/
+RUN pip3 install --break-system-packages --no-cache-dir -r /usr/src/dbzero/requirements.3.9.txt --upgrade
+
+COPY . /usr/src/dbzero
+WORKDIR /usr/src/dbzero
+
+# Build and install
+RUN python3 scripts/generate_meson.py ./src/dbzero/ core
+RUN python3 scripts/generate_meson_tests.py tests/ 
+#RUN ./build.sh
+# WORKDIR /usr/src/dbzero/build/debug/
+# RUN meson install
+
+#WORKDIR /usr/src/dbzero
diff --git a/dbzero/dbzero/locked.py b/dbzero/dbzero/locked.py
index dfca946b..dbb263d5 100644
--- a/dbzero/dbzero/locked.py
+++ b/dbzero/dbzero/locked.py
@@ -3,7 +3,7 @@
 from .dbzero import begin_locked, _async_wait, get_config, commit
 
 
-def async_wait(prefix: str, state_num: int) -> asyncio.Future[None]:
+def async_wait(prefix: str, state_num: int) -> asyncio.Future:
     """Pause an asyncio coroutine until a specific data prefix reaches a target state number.
 
     Async variant of `dbzero.wait` function, suitable for use in coroutines.
diff --git a/dbzero/setup.py b/dbzero/setup.py
index 4f5276c7..f550af7d 100644
--- a/dbzero/setup.py
+++ b/dbzero/setup.py
@@ -10,5 +10,5 @@
     version='0.1.0',
     description='DBZero community edition',
     packages=['dbzero'],
-    python_requires='>=3.10',
+    python_requires='>=3.8',
 )
diff --git a/pyproject.toml b/pyproject.toml
index 5d14d853..620fc2a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ name = 'DBzero'
 version = '0.1.0'
 description = 'DBZero Community edition'
 readme = 'README.md'
-requires-python = '>=3.10'
+requires-python = '>=3.8'
 license = {file = 'LICENSE.txt'}
 authors = [
 ]
diff --git a/python_tests/test_bytearray.py b/python_tests/test_bytearray.py
index 3587b822..321714be 100644
--- a/python_tests/test_bytearray.py
+++ b/python_tests/test_bytearray.py
@@ -1,4 +1,6 @@
 import dbzero as db0
+import pytest
+import sys
 from .memo_test_types import MemoTestClass
 
 
@@ -51,7 +53,9 @@ def test_count(db0_fixture):
     assert bytearray_2.count(b'abc') == 2
     assert bytearray_2.count(db0.bytearray(b'abc')) == 2
 
+# only Python 3.9+
 
+@pytest.mark.skipif(sys.version_info < (3, 9), reason="requires python3.9 or higher")
 def test_removeprefix(db0_fixture):
     bytearray_1 = db0.bytearray(b'abc')
     assert bytearray_1.removeprefix(b'ab') == db0.bytearray(b'c')
@@ -59,6 +63,7 @@ def test_removeprefix(db0_fixture):
     assert bytearray_1.removeprefix(b'abc') == db0.bytearray(b'')
 
 
+@pytest.mark.skipif(sys.version_info < (3, 9), reason="requires python3.9 or higher")
 def test_removesuffix(db0_fixture):
     bytearray_1 = db0.bytearray(b'abc')
     assert bytearray_1.removesuffix(b'ab') == db0.bytearray(b'abc')
diff --git a/python_tests/test_issues_6.py b/python_tests/test_issues_6.py
index a6b278f3..53dbccdb 100644
--- a/python_tests/test_issues_6.py
+++ b/python_tests/test_issues_6.py
@@ -71,7 +71,7 @@ def get_client_id_tags(self):
             return client_id_str.zfill(3)
         return [client_id_str[:3], client_id_str[-3:]]
     
-    def get_tags(self) -> Iterator[str|object]:
+    def get_tags(self) -> Iterator:
         yield from yield_tags(self.first_name)
         yield from yield_tags(self.last_name)
         yield from yield_tags(self.email)
diff --git a/requirements.3.8.txt b/requirements.3.8.txt
new file mode 100644
index 00000000..df8799ee
--- /dev/null
+++ b/requirements.3.8.txt
@@ -0,0 +1,7 @@
+pytest==8.3.5
+pytest-asyncio==0.24.0
+build==0.10.0
+meson==1.9.1
+meson-python==0.18.0
+fasteners==0.19
+psutil==7.0.0
diff --git a/requirements.3.9.txt b/requirements.3.9.txt
new file mode 100644
index 00000000..c9d02ac1
--- /dev/null
+++ b/requirements.3.9.txt
@@ -0,0 +1,7 @@
+pytest==8.4.2
+pytest-asyncio==1.2.0
+build==0.10.0
+meson==1.9.1
+meson-python==0.18.0
+fasteners==0.19
+psutil==7.0.0
diff --git a/src/dbzero/bindings/python/collections/PyByteArray.cpp b/src/dbzero/bindings/python/collections/PyByteArray.cpp
index bd90927d..2f78d3e1 100644
--- a/src/dbzero/bindings/python/collections/PyByteArray.cpp
+++ b/src/dbzero/bindings/python/collections/PyByteArray.cpp
@@ -40,12 +40,19 @@ namespace db0::python
     {
         auto py_obj = Py_OWN(asPyObject(object_inst));
         auto function = Py_OWN(PyObject_GetAttrString(*py_obj, name));
+        if (!function) {
+            PyErr_Format(PyExc_AttributeError, "ByteArray object has no attribute '%s'", name);
+            return NULL;
+        }
         return PyObject_Call(*function, args, kwargs);
     }
     
     PyObject *ByteArray_CallMethod(const char * name, ByteArrayObject *object_inst, PyObject* args, PyObject* kwargs)
     {
         auto py_obj = callMethod(name, object_inst, args, kwargs);
+        if (!py_obj) {
+            return NULL;
+        }
         auto bytearray_object = ByteArrayObject_new(&ByteArrayObjectType, NULL, NULL);
         db0::FixtureLock lock(PyToolkit::getPyWorkspace().getWorkspace().getCurrentFixture());
         makeByteArrayFromPyBytes(*lock, bytearray_object, py_obj);