Complete OpenCV 4.12.0 changelog: https://github.com/opencv/opencv/wiki/OpenCV-Change-Logs#version4120

Python:

• Added libavif to the package and corresponding image format support on Linux and Mac OS. Windows is in progress.
• Enabled GIF support by default.
• Updated Numpy dependency rules. Packages for Python 3.9+ are built with Numpy 2.x. Packages for older Python version are built with Numpy 1.x.
• Improved libjpeg-turbo performance in Windows builds (added NASM and assembly branches).
• Made DNN, FLANN, G-API modules optional during the package build (bindings generation and typing).

Complete OpenCV 4.11.0 changelog: https://github.com/opencv/opencv/wiki/OpenCV-Change-Logs#version4110

Python:

• Added Python 3.13 support
• Fixed build with Python 3.12
• Fixed confg path for the case when Python Limited API is disabled
• Fixed build with system wide CMake, if CMake is not available with pip
• Enabled all jpeg-turbo optimizations on Windows (assembler)
• Split Python type stubs per-module to allow modules list customization
• Minimal Mac OS raised to 13.0.

Complete OpenCV 4.10.0 chnagelog: https://github.com/opencv/opencv/wiki/ChangeLog

Python:

• NumPy 2.0 support in pre-built OpenCV packages for Python 3.9+
• Added python bindings for Rect2f and Point3i #24919
• Switched to numeric dtype for MatLike instead of generic #25406
• Added path-like objects support wherever file names are expected #24773

Complete OpenCV 4.10.0 chnagelog: https://github.com/opencv/opencv/wiki/ChangeLog

Python:

• Experimental NumPy 2.0 support
• Added python bindings for Rect2f and Point3i #24919
• Switched to numeric dtype for MatLike instead of generic #25406
• Added path-like objects support wherever file names are expected #24773

Complete OpenCV 4.9.0 chnagelog: https://github.com/opencv/opencv/wiki/ChangeLog

Python:
- #24023, #24022, #23910 Added type stub generation for missed types and manually wrapped types.
- #24026 Added read-only flag handling for Numpy arrays.
- #24028 Fixed exception handling and bindings for in module.
- #23958 Improved error messages in Numpy array type handling.
- #24468 Fixed constructors documentation in Python.
- Mac OS builds migrated to Mac OS 12. It's minimal supported version now.

OpenCV 4.8.1 release.

Important changes:

• WebP security update for CVE-2023-4863

Adds cv2.typing to package. Close #869

Important changes:

• #20370 Python typing stubs.
• #23350 Fix reference counting errors in registerNewType.
• #23399, #23436, #23138 Fixed ChAruco and diamond boards detector bindings.
• #23371 Added bindings to allow GpuMat and Stream objects to be initialized from memory initialized in other libraries
• #23691 np.float16 support.
• Python bindings for RotatedRect, CV_MAKETYPE, CV_8UC(n).
• Several build fixes for OpenCV-Python package

OpenCV 4.7.0 with various distribution bug fixes.

• Mac OS 11 support.
• Old Linux support with zlib version older than 1.9.
• Package build fixes for Python 11 on Musl C based system (Alpine).

OpenCV 4.7.0 with various distribution bug fixes.

• Mac OS 11 support.
• Old Linux support with zlib version older than 1.9.
• Package build fixes for Python 11 on Musl C based system (Alpine).