Update changelog and add one more test.

Author: ionelmc

CHANGELOG.rst

@@ -2,6 +2,26 @@
 Changelog
 =========
 
+3.2.0 (2025-10-21)
+~~~~~~~~~~~~~~~~~~
+
+* Changed ``tblib.pickling_support.install`` to support exceptions with ``__init__`` that does match the default
+  ``BaseException.__reduce__`` (as it expects the positional arguments to ``__init__`` to match the ``args`` attribute).
+
+  Special handling for OSError (and subclasses) is also included. The errno, strerror, winerror, filename and filename2 attributes will be added in the reduce structure (if set).
+
+  This will support exception subclasses that do this without defining a custom ``__reduce__``:
+
+  .. code-block:: python
+
+    def __init__(self):
+        super().__init__('mistery argument')
+
+    def __init__(self, mistery_argument):
+        super().__init__()
+        self.mistery_argument = mistery_argument
+
+
 3.1.0 (2025-03-31)
 ~~~~~~~~~~~~~~~~~~
 

tests/test_pickle_exception.py

@@ -279,6 +279,27 @@ def test_baderror():
     assert exc.__traceback__ is not None
 
 
+class BadError2(Exception):
+    def __init__(self, stuff):
+        super().__init__()
+        self.stuff = stuff
+
+
+def test_baderror2():
+    try:
+        raise BadError2('123')
+    except Exception as e:
+        exc = e
+
+    tblib.pickling_support.install(exc)
+    exc = pickle.loads(pickle.dumps(exc))
+
+    assert isinstance(exc, BadError2)
+    assert exc.args == ()
+    assert exc.stuff == '123'
+    assert exc.__traceback__ is not None
+
+
 class CustomReduceException(Exception):
     def __init__(self, message, arg1, arg2, arg3):
         super().__init__(message)