
Samsung Galaxy Tab S4
The latest firmware for Samsung Galaxy Tab S4 (SM-T837V) is T837VVRS6CVE2 with Android 10, released on May 30, 2022 for 1 region (CSC). Every official firmware build for SM-T837V, 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/T837VVRS6CVE2
SM-T837V started on Android 8 and has received 2 major Android upgrades; it now runs Android 10. The newest build, T837VVRS6CVE2, was released on May 30, 2022. No new build has appeared for 53 months, so regular updates for this model have most likely ended.
Specifications of SM-T837, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

SM-T837A

SM-T820X

SM-T733

SM-T738U

SM-T825Y
The newest firmware for SM-T837V runs Android 10: build T837VVRS6CVE2, released on May 30, 2022.
The latest build for SM-T837V, T837VVRS6CVE2, was released on May 30, 2022 (4 years ago).
SM-T837V has had no new firmware for 53 months, so regular updates have most likely ended.
Yes, all firmware files for SM-T837V are 100% official, original, and obtained directly from Samsung servers.
To flash SM-T837V, 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-T837V.