Issue #4129: Document more int -> Py_ssize_t changes.
diff --git a/Doc/c-api/slice.rst b/Doc/c-api/slice.rst
index 3743ff8..14c1d49 100644
--- a/Doc/c-api/slice.rst
+++ b/Doc/c-api/slice.rst
@@ -43,6 +43,11 @@
incorporate the source of :cfunc:`PySlice_GetIndicesEx`, suitably renamed,
in the source of your extension.
+ .. versionchanged:: 2.5
+ This function used an :ctype:`int` type for *length* and an
+ :ctype:`int *` type for *start*, *stop*, and *step*. This might require
+ changes in your code for properly supporting 64-bit systems.
+
.. cfunction:: int PySlice_GetIndicesEx(PySliceObject *slice, Py_ssize_t length, Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step, Py_ssize_t *slicelength)
@@ -55,3 +60,9 @@
Returns 0 on success and -1 on error with exception set.
.. versionadded:: 2.3
+
+ .. versionchanged:: 2.5
+ This function used an :ctype:`int` type for *length* and an
+ :ctype:`int *` type for *start*, *stop*, *step*, and *slicelength*. This
+ might require changes in your code for properly supporting 64-bit
+ systems.