opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV 4.5.1. Adds experimental arm64 Linux wheels.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

BREAKING CHANGES

Qt support dropped on macOS due to multiple recent issues with it. GUI support is still enabled on macOS via Cocoa but it is more limited than Qt. If you need Qt support, please consider contributing:

• #376
• #423

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

Added Python 3.9 support.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

Added Python 3.9 support.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

Python 3.5 support dropped.

Fixes:

• #381

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

Python 3.5 support dropped.

Fixes:

• #381

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 4.4.0. Same release as previous 4.4.0.40, but should fix macOS Qt segfault issue: #376

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

Please note that Python 3.5 end-of-life is less than a month away. Upgrade your Python to the latest version as soon as possible since this project will drop Python 3.5 support in August 2020.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 3.4.11. Same release as previous 3.4.11.39, but should fix macOS Qt segfault issue: #376

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

Please note that Python 3.5 end-of-life is less than a month away. Upgrade your Python to the latest version as soon as possible since this project will drop Python 3.5 support in August 2020.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 4.4.0.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the last 3 releases. Please upgrade your pip with pip install --upgrade pip.

Please note that Python 3.5 end-of-life is less than a month away. Upgrade your Python to the latest version as soon as possible since this project will drop Python 3.5 support in August 2020.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 3.4.11.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the last 3 releases. Please upgrade your pip with pip install --upgrade pip.

Please note that Python 3.5 end-of-life is less than a month away. Upgrade your Python to the latest version as soon as possible since this project will drop Python 3.5 support in August 2020.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 4.3.0.

Changes:

• Source distributions added to PyPI. If your system is incompatible with the pre-built wheels, pip will attempt to build OpenCV Python bindings locally. This requires a recent version of pip to work properly. Please refer to the README for more info. #43
• Python 3.5 macOS wheels which were missing in previous release uploaded to PyPI. #316 (comment)
• Linux wheels ship now with Qt 5.15. This should fix many issues which were caused by Qt version conflicts in earlier releases (#362, #46).
• #368