One UI 2.5 launched alongside the Galaxy Note 20 Series and will in due course roll out to other eligible devices which will include the Galaxy S, Galaxy Note and Galaxy a series of Smartphones. It is not a major change but see some information here: https://www.androidauthority.com/samsung-one-ui-2-5
List on this site: https://www.rprna.com/updates/one-ui/samsung-one-ui-2-5-device-list/
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.0,Android 13 .
