Yep, the mint stopped making the half (and all the other coins) in what was the standard relief,
in the 1990s. They went to a cheaper to mint, as well as cheaper looking, low relief design at
that time. Saves them money on minting costs.
A lot of people call the old relief "high relief", but that's incorrect because the mint has made
true high relief coins in the past, and the standard relief doesn't compare. "Mid relief" or
"standard relief" would be more accurate.
Anyway, since the half is no longer produced for circulation, but rather minted now solely for the
collector, the mint has decided, just for appearances, to return the old standard relief to the
OBVERSE ONLY of the current half. Personally, I like it, and wish they would do it to all the coins.
My mother made a comment yesterday that blew me away, since I have never seen her give any coin
more than a cursory look... She said "New coins are so ugly and hard to look at.. Maybe it's just
me getting older, but they are so flat. I don't remember them so flat."
Knowing my mother, the last time she looked at a coin in earnest was 20 years ago...
Goes to show that people DO notice our ugly coinage, sooner or later.