Samsung Galaxy S21 series gets July 2023 security update - SamMobile
New camera version with today's S21 Ultra update. - Samsung Community
Seamless updates” is a great Android feature that the Samsung Galaxy S21 Ultra still doesn't have - GSMArena.com news
Samsung Galaxy S21 Android 13/One UI 5.0 final testing underway, expect Stable update next week - Sammy Fans
Samsung starts to roll out the October 2021 security update for Galaxy S21, Note 20, Z Fold 3 and many more Galaxy smartphones - NotebookCheck.net News