| :c:func:`Py_EndInterpreter` now explicitly untracks all objects currently | |
| tracked by the GC. Previously, if an object was used later by another | |
| interpreter, calling :c:func:`PyObject_GC_UnTrack` on the object crashed if the | |
| previous or the next object of the :c:type:`PyGC_Head` structure became a | |
| dangling pointer. Patch by Victor Stinner. |