Issue #4129: field changed from int to Py_ssize_t.

diff --git a/Doc/c-api/typeobj.rst b/Doc/c-api/typeobj.rst
index a320d9e6764f0bdbb7ce948bca73d8746778361c..abcd1154f5606643af6991ae0a742d0112e0f311 100644 (file)
--- a/Doc/c-api/typeobj.rst
+++ b/Doc/c-api/typeobj.rst
@@ -64,6 +64,10 @@ type objects) *must* have the :attr:`ob_size` field.
 
    This field is not inherited by subtypes.
 
+   .. versionchanged:: 2.5
+      This field used to be an :ctype:`int` type. This might require changes
+      in your code for properly supporting 64-bit systems.
+
 
 .. cmember:: PyTypeObject* PyObject.ob_type