
Samsung Montblanc
The latest firmware for Samsung Montblanc (SM-W2014) is W2014KEUBPI1 with Android 4.3 (Jelly), released on August 30, 2016 for 1 region (CSC). Every official firmware build for SM-W2014, 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/W2014KEUBPI1
All 3 builds in our database run Android 4.3 (Jelly). The newest build, W2014KEUBPI1, was released on August 30, 2016. No new build has appeared for 123 months, so regular updates for this model have most likely ended.

SM-W2018X

SM-W9025

SM-W7025

SM-W7024

SM-W9024

SM-W7023

SM-W9023

SM-W2022
The newest firmware for SM-W2014 runs Android 4.3 (Jelly): build W2014KEUBPI1, released on August 30, 2016.
The latest build for SM-W2014, W2014KEUBPI1, was released on August 30, 2016 (10 years ago).
SM-W2014 has had no new firmware for 123 months, so regular updates have most likely ended.
Yes, all firmware files for SM-W2014 are 100% official, original, and obtained directly from Samsung servers.
To flash SM-W2014, 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-W2014.