This latest update is the 14th for the Global, Exynos, S21 series and is currently being rolled out by Samsung and is a later, July, build than the current U.S. Snapdragon update AUFD which has a June build date.
I assume it'll land in the UK by late August then... another 'Brexit' benefit!
I notice that network/mobile data is not mentionned so I take this will be another totally superficial marketing gimmicky update rather than anything actually meaningful. "Look we do updates"
Can't wait to count down on ditching my S21U.
Samsung update AUG4
This article from SamMobile gives more insight into this latest AUG4 release...
"The new update fixes some 20 security vulnerabilities found in Samsung’s software. The new update, which aims to fix the Android Auto bug that some Galaxy users were facing, could also include some new features and device stability improvements."
See full article... July 2021 security update starts rolling out to the Galaxy S21 internationally
The latest AUG4 update is now rolling out to the U.K. non carrier branded S21 devices with CSC code BTU.
Also available for...
Germany (VD2, Vodafone)