The Python version diagram has been updated to show the bugfix/security split for each release. (Before, the bars were either completely green or yellow.)
https://devguide.python.org/versions/
It's also zoomed in and shows fewer releases than before. There's another chart further down the page showing all of 2.6 to 3.14. And the wording in the status key has been refreshed to make it clearer.
@hugovk, it looks like french fries going bad xD.