Issue #4129: Documentation notes for int -> Py_ssize_t changes.
diff --git a/Doc/c-api/allocation.rst b/Doc/c-api/allocation.rst
index dc9f5a4..28b9c56 100644
--- a/Doc/c-api/allocation.rst
+++ b/Doc/c-api/allocation.rst
@@ -33,6 +33,10 @@
This does everything :cfunc:`PyObject_Init` does, and also initializes the
length information for a variable-size object.
+ .. versionchanged:: 2.5
+ This function used an :ctype:`int` type for *size*. This might require
+ changes in your code for properly supporting 64-bit systems.
+
.. cfunction:: TYPE* PyObject_New(TYPE, PyTypeObject *type)
@@ -54,6 +58,10 @@
fields into the same allocation decreases the number of allocations,
improving the memory management efficiency.
+ .. versionchanged:: 2.5
+ This function used an :ctype:`int` type for *size*. This might require
+ changes in your code for properly supporting 64-bit systems.
+
.. cfunction:: void PyObject_Del(PyObject *op)