
Samsung Galaxy Note Pro 12.2
The latest firmware for Samsung Galaxy Note Pro 12.2 (SM-P905M) is P905MUBUANK1 with Android 4.4.2 (KitKat), released on November 13, 2014 for 3 regions (CSC). Every official firmware build for SM-P905M, 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/P905MUBUANK1
All 12 builds in our database run Android 4.4.2 (KitKat). The newest build, P905MUBUANK1, was released on November 13, 2014. No new build has appeared for 145 months, so regular updates for this model have most likely ended.
Specifications of SM-P905, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

SM-P905V

SM-P907A

SM-P902

SM-P605V

SM-P602
The newest firmware for SM-P905M runs Android 4.4.2 (KitKat): build P905MUBUANK1, released on November 13, 2014.
The latest build for SM-P905M, P905MUBUANK1, was released on November 13, 2014 (11 years ago).
SM-P905M has had no new firmware for 145 months, so regular updates have most likely ended.
Yes, all firmware files for SM-P905M are 100% official, original, and obtained directly from Samsung servers.
To flash SM-P905M, 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-P905M.