Summary

This release includes native terminal image rendering via the Kitty graphics

protocol, a fix for illegible text in light-background themes, Python 3.11

support restoration, and type annotation corrections.

- :ghpull:`15184` Implement support for ``image/png`` format in terminal

- :ghpull:`15175` Restore Python 3.11 support with conditional imports

- :ghpull:`15156` Fix illegible yellow text on yellow background in light themes

- :ghpull:`15172` Fix ``CapturedIO.__init__`` type annotations to accept ``Optional[StringIO]``

- :ghpull:`15180` Clarify custom prompts example in documentation

- :ghpull:`15182` Update Contributing.md

Terminal Image Rendering via Kitty Protocol

IPython now renders ``image/png`` MIME output natively in supported terminals

using the `Kitty graphics protocol

<https://sw.kovidgoyal.net/kitty/graphics-protocol/>`_. Objects such as

``PIL.Image`` instances and SymPy expressions rendered with

``sympy.init_printing(use_latex="png")`` will display as actual inline images

in Kitty, Ghostty, and other compatible terminals. No configuration is required

(:ghpull:`15184`, closes :ghissue:`13287`).

`D. E. Shaw group <https://deshaw.com/>`_ (:ghpull:`15175`).

Theme-Aware Output Color Fix

Text that was previously rendered in a fixed yellow color—causing it to be

illegible on terminals with a light or yellow background—is now rendered using

a theme-aware color (:ghpull:`15156`, fixes :ghissue:`14901`).

As usual, you can find the full list of PRs on GitHub under `the 9.13

<https://github.com/ipython/ipython/milestone/162?closed=1>`__ milestone.