I am interested in what features postgresql 19 has .. and would like to see a summary that starts with a bullet list of highlights.

I found this tour unreadable.

Here's the official release notes page : https://www.postgresql.org/docs/19/release-19.html

which unsurprisingly does have a list of important changes near the top.

to be fair .. the tour does have a list of contents on right hand side, which I noticed much later.

and sql examples.

I guess we are in the age of "Ill get my people to talk to your people" or "Ill get my AI to summarize your AI output"

The benefit of a guide would be it tells me what the main changes are, why they matter, with pithy illustrative usage examples.

I guess I have an aversion to idiomatic [ ego-massaging, feelgood ] LLM-speak.