Samsung has consistently been ahead of the curve with security updates this year, and that continues now as the July 2021 patch hits the Galaxy devices series internationally. As the month rolls on, we're seeing it hit more and more devices.
Samsung started updating its phones with the June security patch before May was out, but the S21 series seemed to be having issues. Now things seem to be back to normal as the update is rolling out widely.
Samsung started beta testing its Android 11-based One UI 3.0 update a few months ago, and ever since then it's been expanding to more test devices and locations. Now the company has released official details for when the final One UI 3 release is expected to start coming to many of its handsets in markets worldwide, giving Galaxy users an idea of when to expect the upgrade on their own phones.