"find": AND/OR no longer equal precedence

Mister.Fred.Ma@gmail.com

There was a time when I used HP-UX and Solaris, and the "find"
command's AND (implied) and OR operators were of equal precedence.
Basically, operators were evaluated from left to right. I am
currently using GNU "find" version 4.3.8, and the AND operator has
greater precedence than the OR operator. When did this unequal
precedence start to become standard (assuming that it is standard) It
certainly is more intuitive, though we have to be careful of falling
back on old ways, and maybe need to rework old scripts? Is it pretty
well the way that *nix is going?

Thanks.

Fred