by increasing the number of iterations.  That appears sufficient to
expose the ref count problem fixed in this issue.
Patch suggested by Xiang Zhang

- be clear builtin traceback display was also updated
- show example output in What's New
- fix versionadded markup

to ref count problem introduced in code for Issue #27038 in 3.6.0a3.
Patch by Xiang Zhang.

directory and sysconfigdata file name.  This is a workaround for 3.6.0a4
pending resolution of other #23968 items.

Patch by Lisa Roach. See also PEP 628.

The original problem has been fixed in newer versions of FreeBSD.
Patch by Dimitry Andric of the FreeBSD project.

Patch by Ronald Oussoren.

Xiang Zhang.

and iterables.  Speed up to 3 times for short objects.  Original patch by
Naoki Inada.

Large sections of repeated lines in tracebacks are now abbreviated as
"[Previous line repeated {count} more times]" by both the traceback
module and the builtin traceback rendering.

Patch by Emanuel Barry.

implemented with using Argument Clinic.