
Samsung Galaxy Note II
The latest firmware for Samsung Galaxy Note II (SPH-L900) is L900VPUCOH3 with Android 4.4.2 (KitKat), released on August 23, 2015 for 1 region (CSC). Every official firmware build for SPH-L900, 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/L900VPUCOH3
All 4 builds in our database run Android 4.4.2 (KitKat). The newest build, L900VPUCOH3, was released on August 23, 2015. No new build has appeared for 136 months, so regular updates for this model have most likely ended.

SPH-M840

SPH-L710T

SPH-L720T

SPH-L710

SPH-L720

SPH-L600

SPH-L520
The newest firmware for SPH-L900 runs Android 4.4.2 (KitKat): build L900VPUCOH3, released on August 23, 2015.
The latest build for SPH-L900, L900VPUCOH3, was released on August 23, 2015 (11 years ago).
SPH-L900 has had no new firmware for 136 months, so regular updates have most likely ended.
Yes, all firmware files for SPH-L900 are 100% official, original, and obtained directly from Samsung servers.
To flash SPH-L900, 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 SPH-L900.