
Samsung Galaxy TabE 8.0
The latest firmware for Samsung Galaxy TabE 8.0 (SM-T378S) is T378SKSU1AVG5 with Android 6.0.1 (Marshmallow), released on July 21, 2022 for 1 region (CSC). Every official firmware build for SM-T378S, newest first: one row per build with all regions (CSC) that received it.
Each firmware build has its own page at https://samfirm.shop/build/{PDA}, where {PDA} is the build number from the list above. Example: https://samfirm.shop/build/T378SKSU1AVG5
All 3 builds in our database run Android 6.0.1 (Marshmallow). The newest build, T378SKSU1AVG5, was released on July 21, 2022. No new build has appeared for 51 months, so regular updates for this model have most likely ended.

SM-T378V

SM-T377V

SM-T387V

SM-T365Y

SM-T385S
The newest firmware for SM-T378S runs Android 6.0.1 (Marshmallow): build T378SKSU1AVG5, released on July 21, 2022.
The latest build for SM-T378S, T378SKSU1AVG5, was released on July 21, 2022 (4 years ago).
SM-T378S has had no new firmware for 51 months, so regular updates have most likely ended.
Yes, all firmware files for SM-T378S are 100% official, original, and obtained directly from Samsung servers.
To flash SM-T378S, you need to download the appropriate firmware, put your device into Download Mode, and use the Odin tool to load the BL, AP, CP, and CSC files.
Downgrading is only possible if the bootloader version (binary bit) of the old firmware matches the current one. Always check the binary version before flashing SM-T378S.