Sculpting near water is smoother for everyone. The water settle stopped chewing through memory on every brush stroke, so the hitches it caused on host and guests are gone.
The console stays quiet about art that was never shipped. A published game no longer prints file-open errors for the toys and building pieces that are held back for a later patch.
Balls look right when you join someone else's world. Bouncy balls and kick balls showed up as a plain glowing sphere for everyone except the host; they now wear their proper rubber texture for every player in the lobby.
Bowling pins are full size for everyone. Guests were seeing a quarter-size rack while the host saw the real one.
The little points popups no longer occasionally show code instead of the x2 multiplier when earns stack up.
The loading screen you see joining a friend's world no longer jitters. It holds one position while the world builds, and the host's world-generating moment got the same treatment.
Watching a friend sculpt no longer stutters your game. The world updates smoothly while they paint, and it keeps up stroke for stroke.
Terrain edits made live in a running world (brush strokes, dynamite craters) do not reach friends who join afterward until the world regenerates. Everyone present at the time sees them fine.