It would be pretty strange to use those as a default --- I am not inclined to mention it in the release notes --- we don't mention every change, only significant ones.
Personally, I think that's a fairly silly policy! How does it hurt us to mention it and you just know that someone, somewhere, is doing it...
Chris
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
