The full changelog for this release is here https://docs.python.org/release/3.11.7/whatsnew/changelog.html#python-3-11-7-final

Surprisingly not shown that obviously in the release announcements, but I guess that’s fair since most of the changes will have no effect on 99.9999% of people.

Sounds fine, they're both immutable which helps.

It's described in PEP 585, https://peps.python.org/pep-0585/#parameters-to-generics-are-available-at-runtime

I’d be happy if we’d just accepted “referer” as the correct spelling for everything, but instead we have the “Referrer-Policy” header, so now I need to check the correct spelling for anything involving referring…

I do sort of like the idea that because we want to keep backwards compatibility on software we just change the language instead since that’s easier.