New in-game Summoner Name font (which is pretty bad, tbh. I prefer the old one.) Added SFX to end of game ceremony (nexus exploding and crystals flying and Victory\Defeat. The SFX are annoying to me.)
That's what I found so far. Might be just changes that went through earlier but only now for Mac clients.
Vistha Kai2 votesWell, since last patch pots icons are grayed out if you can't use them due to having max health and/or mana.
Wasn't documented either.
Jubbinaut1 votesI'm not sure about the font change, but the end-game SFX has been around since shortly after the Summoner's Rift map update.
Bouffon dAnglais1 votesBut I think there are some new SFX during the time the crystals are flying. You might be right, as Mac client got the end game ceremony about two patches later.