Issue #4129: Belatedly document which C API functions had their argument(s) or

return type changed from int or int * to Py_ssize_t or Py_ssize_t * as this
might cause problems on 64-bit platforms.

Doc/c-api/tuple.rst

@@ -42,6 +42,10 @@ Tuple Objects
 
    Return a new tuple object of size *len*, or *NULL* on failure.
 
+   .. versionchanged:: 2.5
+      This function used an :ctype:`int` type for *len*. This might require
+      changes in your code for properly supporting 64-bit systems.
+
 
 .. cfunction:: PyObject* PyTuple_Pack(Py_ssize_t n, ...)
 
@@ -51,11 +55,19 @@ Tuple Objects
 
    .. versionadded:: 2.4
 
+   .. versionchanged:: 2.5
+      This function used an :ctype:`int` type for *n*. This might require
+      changes in your code for properly supporting 64-bit systems.
+
 
 .. cfunction:: Py_ssize_t PyTuple_Size(PyObject *p)
 
    Take a pointer to a tuple object, and return the size of that tuple.
 
+   .. versionchanged:: 2.5
+      This function returned an :ctype:`int` type. This might require changes
+      in your code for properly supporting 64-bit systems.
+
 
 .. cfunction:: Py_ssize_t PyTuple_GET_SIZE(PyObject *p)
 
@@ -68,6 +80,10 @@ Tuple Objects
    Return the object at position *pos* in the tuple pointed to by *p*.  If *pos* is
    out of bounds, return *NULL* and sets an :exc:`IndexError` exception.
 
+   .. versionchanged:: 2.5
+      This function used an :ctype:`int` type for *pos*. This might require
+      changes in your code for properly supporting 64-bit systems.
+
 
 .. cfunction:: PyObject* PyTuple_GET_ITEM(PyObject *p, Py_ssize_t pos)
 
@@ -79,6 +95,10 @@ Tuple Objects
    Take a slice of the tuple pointed to by *p* from *low* to *high* and return it
    as a new tuple.
 
+   .. versionchanged:: 2.5
+      This function used an :ctype:`int` type for *low* and *high*. This might
+      require changes in your code for properly supporting 64-bit systems.
+
 
 .. cfunction:: int PyTuple_SetItem(PyObject *p, Py_ssize_t pos, PyObject *o)
 
@@ -89,6 +109,10 @@ Tuple Objects
 
       This function "steals" a reference to *o*.
 
+   .. versionchanged:: 2.5
+      This function used an :ctype:`int` type for *pos*. This might require
+      changes in your code for properly supporting 64-bit systems.
+
 
 .. cfunction:: void PyTuple_SET_ITEM(PyObject *p, Py_ssize_t pos, PyObject *o)
 
@@ -116,6 +140,10 @@ Tuple Objects
    .. versionchanged:: 2.2
       Removed unused third parameter, *last_is_sticky*.
 
+   .. versionchanged:: 2.5
+      This function used an :ctype:`int` type for *newsize*. This might
+      require changes in your code for properly supporting 64-bit systems.
+
 
 .. cfunction:: int PyTuple_ClearFreeList(void)