https://wccftech.com/samsung-rolls-out-the-second-one-ui-4-0-beta-for-galaxy-s21-series/

Samsung launched the One UI 4.0 beta program last month, and Galaxy S21 users finally got the taste of Android 12 on their device before the final rollout. The first beta released did contain many new things, including new widgets, lock screen features, animated stickers for Always-on DIsaply, new charging animations, and more.

Samsung has now decided to put out the second One UI 4.0 beta for the Galaxy S21 series, and it brings new additional changes both stability-wise and additions. The new update is already rolling out to the users, and it brings a couple of new features and several bug fixes, and performance improvements.