The 2024 update [1] was basically just fixing typos.
The 2023 update [2] was reaffirming the original text and added safeguards to prevent abuse by police and prosecutors misapplying the law. This update did remove the explicit age mentioned, but if you look at the deleted text, you had to leave a minor unattended for a very long period of time not just "a trip to the store" for the law to have been violated before the change despite what the divorce attorneys were trying to tell people on their misleading website.
Also, I'm not going to go into my rant about IPI intentionally misleading people and lying by omissions and funny ways of presenting "data". If you use them as a source for anything and expect that what you read was the truth, then that's on you. They're a propaganda organization that spreads even more disinformation than the Heritage Foundation.
[0] https://codes.findlaw.com/il/chapter-705-courts/il-st-sect-7...
[1] https://www.ilga.gov/Legislation/publicacts/view/103-0605
[2] https://www.ilga.gov/Legislation/publicacts/view/103-0233
Unless your child was born in the past couple years or following legislation, I think most people don't realize this, as even most the law firms still have the old '14' as the min age on their neglect pages. So you are correct with the asterisk that it glosses over that it was the case up until the past couple years and you are updating us on a new development.
[0] https://www.mkfmlaw.com/blog/at-what-age-can-a-child-be-left...
[1] https://www.illinoispolicy.org/illinois-has-highest-home-alo...