Samsung rolling out the Android 11 based One UI 3.1 for Galaxy Tab S7 series on January 19, 2021. Updates were released for Korean Galaxy Tab S7 LTE (SM-T875), S7 Plus LTE (SM-T975N), and S7 Plus 5G (SM-T976N) units. The software version of the new building is TxxxNKOU1BUA8 with Security patch level: 2021-01-01, We have checked the firmware size around 5.63 GB and you can download it on here: SM-T976N or SM-T975N. The complete changelog for such updates is available here (in Korean).
What’s new in this update?
- New UI design.
- Increased stock application.
- Increased memory allocation.
- Etc.
The update also features promised Second Screen functionality that Samsung announced during the launch event. This feature allows you to use the tablet as a secondary monitor for your Windows PC.
Source: https://meeco.kr/mini/30917227
Currently One UI 3.1 update is only for Korean variants. Samsung may release updates in other regions over the next few weeks.