
Samsung Galaxy Tab3V 7.0
The latest firmware for Samsung Galaxy Tab3V 7.0 (SM-T116NU) is T116NUXXU0AQJ1 with Android 4.4.4 (KitKat), released on November 29, 2017 for 8 regions (CSC). Every official firmware build for SM-T116NU, 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/T116NUXXU0AQJ1
All 13 builds in our database run Android 4.4.4 (KitKat). The newest build, T116NUXXU0AQJ1, was released on November 29, 2017. No new build has appeared for 108 months, so regular updates for this model have most likely ended.
Specifications of SM-T116N, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

SM-T116NY

SM-T113NU

SM-T111NQ

SM-T110

SM-T210X
The newest firmware for SM-T116NU runs Android 4.4.4 (KitKat): build T116NUXXU0AQJ1, released on November 29, 2017.
The latest build for SM-T116NU, T116NUXXU0AQJ1, was released on November 29, 2017 (8 years ago).
SM-T116NU has had no new firmware for 108 months, so regular updates have most likely ended.
Yes, all firmware files for SM-T116NU are 100% official, original, and obtained directly from Samsung servers.
To flash SM-T116NU, 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-T116NU.