Thank you, Samsung India for sending the #GalaxyUnpacked Kit.Register on Samsung.com to join and watch the new Galaxy unfold on August 11th at 7.30pm IST.
As posted by Community Head on Samsung Members Korean community, OneUI 4 beta with Android 12 is coming soon for S21 devices, and next devices will follow later.The expected time for update to rollout is around September 2021.Translated version :
Its 3.1.1 update but the number doesn't reflect in the software information menu, on Korean community the developer team has mentioned that these update includes features of 3.1.1