
Samsung Galaxy Tab3 7.0
The latest firmware for Samsung Galaxy Tab3 7.0 (SM-T210) is T210XXBPJ2 with Jelly(Android Bean), released on November 7, 2016 for 14 regions (CSC). Every official firmware build for SM-T210, 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/T210XXBPJ2
All 33 builds in our database run Android 4.4.2 (KitKat). The newest build, T210XXBPJ2, was released on November 7, 2016. No new build has appeared for 121 months, so regular updates for this model have most likely ended.
Box codes of SM-T210 for different colors and markets. Firmware is chosen by the model code SM-T210 and your region (CSC), not by the SKU.

SM-T290N

SM-T537A

SM-T800X

SM-T807V

SM-T230X

SM-T230NY

SM-T237V

SM-T232
The newest firmware for SM-T210 runs Android 4.4.2 (KitKat): build T210XXBPJ2, released on November 7, 2016.
The latest build for SM-T210, T210XXBPJ2, was released on November 7, 2016 (9 years ago).
SM-T210 has had no new firmware for 121 months, so regular updates have most likely ended.
Yes, all firmware files for SM-T210 are 100% official, original, and obtained directly from Samsung servers.
To flash SM-T210, 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-T210.