https://wccftech.com/galaxy-s10-one-ui-2-0-beta-closed-in-korea-new-beta-update-rolling-out-globally/

Just about a month ago, Samsung's Android 10-based One UI 2.0 beta program went live in Korea. Korean Galaxy S10, Galaxy S10+, and Galaxy S10e units have since then received a total of four updates. Today, Samsung announced the end of the beta program in their home country. New users can no longer sign up for the program (via Sammobile)

Whether it is because Samsung is nearly done testing the software or due to the beta slots being filled up remains to be seen. Usually, a device receives up to four beta software updates before a stable rollout commences. There is a likelihood that the Korean devices will receive one more update. Samsung could even surprise us by rolling out a stable release in the coming week or so. Only time will tell.