
Samsung G9098
The latest firmware for Samsung G9098 (SM-G9098) is G9098ZMUAPG1 with Android 4.3 (Jelly), released on July 27, 2016 for 1 region (CSC). Every official firmware build for SM-G9098, 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/G9098ZMUAPG1
All 2 builds in our database run Android 4.3 (Jelly). The newest build, G9098ZMUAPG1, was released on July 27, 2016. No new build has appeared for 124 months, so regular updates for this model have most likely ended.

SM-G9092

SM-G900AZ

SM-G903W

SM-G901F

SM-G800X
The newest firmware for SM-G9098 runs Android 4.3 (Jelly): build G9098ZMUAPG1, released on July 27, 2016.
The latest build for SM-G9098, G9098ZMUAPG1, was released on July 27, 2016 (10 years ago).
SM-G9098 has had no new firmware for 124 months, so regular updates have most likely ended.
Yes, all firmware files for SM-G9098 are 100% official, original, and obtained directly from Samsung servers.
To flash SM-G9098, 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-G9098.