Samsung Gear S3 Frontier
The latest firmware for Samsung Gear S3 Frontier (SM-R765T) is R765TUVU3FVG1, released on August 18, 2022 for 1 region (CSC). Every official firmware build for SM-R765T, 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/R765TUVU3FVG1
The newest build, R765TUVU3FVG1, was released on August 18, 2022. No new build has appeared for 50 months, so regular updates for this model have most likely ended.
- Device stability improvements, bug fixes.
- New and / or enhanced features.
- Further improvements to performance.

SM-R540N

SM-R640N

SM-R630N

SM-R420N

SM-R530N

SM-R900N

SM-R910N

SM-R840N
The latest build for SM-R765T, R765TUVU3FVG1, was released on August 18, 2022 (4 years ago).
SM-R765T has had no new firmware for 50 months, so regular updates have most likely ended.
Yes, all firmware files for SM-R765T are 100% official, original, and obtained directly from Samsung servers.
To flash SM-R765T, 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-R765T.