PyObjC Files

• [#661]: 12.0 incorrectly has support for Python 3.9 in packaging metadata.

• Update framework bindings for the macOS 26.1 SDK

• Instances of :type:bytearray can be used as the argument for a function or selector that expects a null-terminated C char array.

• Automatically disable KVO usage for subclasses of NSProxy defined in Python.

• Fix SystemError when calling objc.propertiesForClass(objc.objc_object).

• objc.classAddMethods no longer supports callable's whose __name__ attribute is a byte string.

• Clearer error messages when an entry in the methods added with objc.classAddMethod is invalid.

• Using objc.classAddMethods to add a method for which a custom IMP helper has been registered now works correctly (previously the default libffi IMP implementation was used in these cases), and likewise for using :funcsetattr to assign methods.

• It is no longer possible to use :func:objc.classAddMethods to override an existing method with an incompatible Objective-C signature, and likewise for using :func:setattr to do the same.

It was already not possible to override a method from a super class with an incompatible Objective-C signature.

• It is now possible to use an :class:objc.objc_method instance in the method list argument for :func:objc.classAddMethod.

• -[OC_PythonObject copy] now actually copies the value if the value is not known to be immutable (such as subclasses of the builtin number types).