In the past, Samsung has released updates like this in South Korea first.
It usually then follows those releases with a western launch.
On top of bringing wear detection to the earbuds, the updates also include several new stability improvements.
Samsung
Wear detection is a common feature in many higher-end earbuds.
Essentially, they use motion and other sensors to detect when youre wearing them.
Earbuds likeApple AirPods ProandNothings Ear 1also include wear detection.