Samsung has started pushing Android 11 update for its 2 year old flagship series, the Galaxy S10 series. The update is currently rolling out in India, and might soon begin in other regions.
However, the Beta program will not receive the stable update right now, since it needs a little more work to shift beta to stable channel. During the time of the OneUI 2.5 rollout, Beta users got the update by a date late. So expect the same this time as well.
If you currently own any device in the Galaxy S10 series, and do live in India, and has Indian variant, you can get the update very soon, or check the update manually.