diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 1ee8618..be05ce1 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -1,36 +1,168 @@
-# Python package
-# Create and test a Python package on multiple Python versions.
-# Add steps that analyze code, save the dist with the build record, publish to a PyPI-compatible index, and more:
-# https://docs.microsoft.com/azure/devops/pipelines/languages/python
+jobs:
+- job: 'TestLinux'
+  pool:
+    vmImage: 'ubuntu-latest'
+  strategy:
+    matrix:
+      Python39-Linux:
+        python.version: '3.9'
+    maxParallel: 3
+  steps:
+  - task: UsePythonVersion@0
+    inputs:
+      versionSpec: '$(python.version)'
+      architecture: 'x64'
+  - script: sudo apt-get update
+    displayName: 'AptGet Update'
+  - script: sudo apt-get install -y pandoc
+    displayName: 'Install Pandoc'
+  - script: sudo apt-get install -y texlive texlive-latex-extra texlive-xetex dvipng
+    displayName: 'Install Latex'
+  - script: sudo apt-get install -y p7zip-full
+    displayName: 'Install 7z, rar'
+  - script: sudo apt-get install -y inkscape
+    displayName: 'Install Inkscape'
+  - script: sudo apt-get install -y graphviz
+    displayName: 'Install Graphviz'
+  - script: python -m pip install --upgrade pip setuptools wheel
+    displayName: 'Install tools'
+  - script: pip install -r requirements.txt
+    displayName: 'Install Requirements'
+  - script: python -c "import platform;print(platform.version())"
+    displayName: 'Platform'
+  - script: |
+      python -u setup.py build_ext --inplace
+    displayName: 'Build inplace'
+  - script: |
+      python -u setup.py unittests
+    displayName: 'Runs Unit Tests'
+  - script: |
+      python -u setup.py bdist_wheel
+    displayName: 'Build Package'
+#  - script: |
+#      python -u setup.py build_sphinx
+#    displayName: 'Builds Documentation'
+  - script: |
+      python -m pip install cibuildwheel
+      export CIBW_MANYLINUX_X86_64_IMAGE="manylinux2014"
+      export CIBW_BEFORE_BUILD="pip install ."
+      export CIBW_BEFORE_BUILD="pip install pybind11 cython numpy scipy pyquickhelper"
+      export CIBW_BUILD="cp37-manylinux_x86_64 cp38-manylinux_x86_64"
+      # cp39-manylinux_x86_64 seems broken.
+      python -m cibuildwheel --output-dir dist/wheelhouse --platform linux
+    displayName: 'Build Package manylinux2014'
+  - task: PublishPipelineArtifact@0
+    inputs:
+      artifactName: 'wheel-linux-$(python.version)'
+      targetPath: 'dist'
 
-trigger:
-- main
+- job: 'TestWindows'
+  pool:
+    vmImage: 'windows-latest'
+  strategy:
+    matrix:
+      Python39-Linux:
+        python.version: '3.9'
+    maxParallel: 3
+  steps:
+  - task: UsePythonVersion@0
+    inputs:
+      versionSpec: '$(python.version)'
+      architecture: 'x64'
+  - script: python -m pip install --upgrade pip setuptools wheel
+    displayName: 'Install tools'
+  - script: pip install -r requirements.txt
+    displayName: 'Install Requirements'
+  - script: python -c "import platform;print(platform.version())"
+    displayName: 'Platform'
+  - script: |
+      python -u setup.py bdist_wheel
+    displayName: 'Build Package'
+  - script: |
+      python -m pip install cibuildwheel
+      set CIBW_BEFORE_BUILD=pip install .
+      set CIBW_BEFORE_BUILD=pip install pybind11 cython numpy scipy pyquickhelper
+      set CIBW_BUILD=cp37-win_amd64 cp38-win_amd64 cp39-win_amd64
+      python -m cibuildwheel --output-dir dist/wheelhouse
+    displayName: 'Build Package many'
+  - task: PublishPipelineArtifact@0
+    inputs:
+      artifactName: 'wheel-linux-$(python.version)'
+      targetPath: 'dist'
 
-pool:
-  vmImage: 'ubuntu-latest'
-strategy:
-  matrix:
-    Python27:
-      python.version: '2.7'
-    Python35:
-      python.version: '3.5'
-    Python36:
-      python.version: '3.6'
-    Python37:
-      python.version: '3.7'
-
-steps:
-- task: UsePythonVersion@0
-  inputs:
-    versionSpec: '$(python.version)'
-  displayName: 'Use Python $(python.version)'
-
-- script: |
-    python -m pip install --upgrade pip
-    pip install -r requirements.txt
-  displayName: 'Install dependencies'
-
-- script: |
-    pip install pytest pytest-azurepipelines
-    pytest
-  displayName: 'pytest'
+- job: 'TestMac'
+  pool:
+    vmImage: 'macOS-latest'
+  strategy:
+    matrix:
+      Python39-Mac:
+        python.version: "3.9"
+  steps:
+  - task: UsePythonVersion@0
+    inputs:
+      versionSpec: '$(python.version)'
+      architecture: 'x64'
+  - script: gcc --version
+    displayName: 'gcc version'
+  - script: |
+          brew update
+    displayName: 'brew update'
+  - script: export
+    displayName: 'export'
+  - script: gcc --version
+    displayName: 'gcc version'
+  - script: brew install llvm
+    displayName: 'install llvm'
+  - script: brew install libomp
+    displayName: 'Install omp'
+  # already installed
+  #- script: brew install p7zip
+  #  displayName: 'Install p7zip'
+  - script: brew install pandoc
+    displayName: 'Install Pandoc'
+  - script: brew install graphviz
+    continueOnError: true
+    displayName: 'Install Graphviz'
+  - script: brew install pybind11
+    displayName: 'Install pybind11'
+  - bash: echo "##vso[task.prependpath]$CONDA/bin"
+    displayName: Add conda to PATH.
+  - bash: sudo chown -R $USER $CONDA
+    displayName: Take ownership of conda installation
+  - bash: conda update conda --yes --quiet
+    displayName: Update conda.
+  - bash: conda info -a
+  - bash: conda create --yes --quiet --name pyenv -c defaults -c conda-forge python=$PYTHON_VERSION tox sphinx jupyter Cython numpy mkl scipy scikit-learn pandas coverage pylint
+    displayName: Create Anaconda environment.
+  - bash: conda list
+  - bash: |
+      source activate pyenv
+  # - script: brew install --cask  mactex
+  #   displayName: 'Install latex'
+  #- script: python -m pip install --upgrade pip setuptools wheel
+  #  displayName: 'Install tools'
+  - script: pip install -r requirements.txt
+    displayName: 'Install Requirements'
+  - script: python -c "import platform;print(platform.version())"
+    displayName: 'Platform'
+  - script: |
+          # export MACOSX_DEPLOYMENT_TARGET=10.13
+          python setup.py build_ext --inplace
+    displayName: 'Build package'
+  - script: |
+      python -u setup.py unittests
+    displayName: 'Runs Unit Tests'
+  - script: |
+      python -u setup.py bdist_wheel
+    displayName: 'Build Package'
+  - script: |
+      python -m pip install cibuildwheel
+      export CIBW_BEFORE_BUILD="pip install ."
+      export CIBW_BEFORE_BUILD="pip install pybind11 cython numpy scipy pyquickhelper"
+      export CIBW_BUILD="cp37-macosx_x86_64 cp38-macosx_x86_64 cp39-macosx_x86_64"
+      python -m cibuildwheel --output-dir dist/wheelhouse
+    displayName: 'Build Package many'
+  - task: PublishPipelineArtifact@0
+    inputs:
+      artifactName: 'wheel-mac-$(python.version)'
+      targetPath: 'dist'
diff --git a/src/wrapclib/__init__.py b/src/wrapclib/__init__.py
index 7037d8d..3116a1f 100644
--- a/src/wrapclib/__init__.py
+++ b/src/wrapclib/__init__.py
@@ -5,7 +5,7 @@
 :epkg:`Python` + some C libraries.
 """
 
-__version__ = "0.1.51"
+__version__ = "0.1.56"
 __author__ = "Xavier Dupré"
 __github__ = "https://github.com/sdpython/wrapclib"
 __url__ = "http://www.xavierdupre.fr/app/wrapclib/helpsphinx/index.html"