
Samsung Galaxy Note4 S-LTE
The latest firmware for Samsung Galaxy Note4 S-LTE (SM-N916L) is N916LKLU2DVG1 with Android 6.0.1 (Marshmallow), released on August 19, 2022 for 1 region (CSC). Every official firmware build for SM-N916L, newest first: one row per build with all regions (CSC) that received it.
SM-N916L started on Android 5 and has received 1 major Android upgrade; it now runs Android 6.0.1 (Marshmallow). The newest build, N916LKLU2DVG1, was released on August 19, 2022. No new build has appeared for 50 months, so regular updates for this model have most likely ended.

SM-N920AZW

SM-N920VZW

SM-N950UZK

SM-N920AZK

SM-N950X

SM-N930V

SM-N9300

SM-N930S
The newest firmware for SM-N916L runs Android 6.0.1 (Marshmallow): build N916LKLU2DVG1, released on August 19, 2022.
The latest build for SM-N916L, N916LKLU2DVG1, was released on August 19, 2022 (4 years ago).
SM-N916L has had no new firmware for 50 months, so regular updates have most likely ended.
Yes, all firmware files for SM-N916L are 100% official, original, and obtained directly from Samsung servers.
To flash SM-N916L, 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-N916L.