
Samsung Galaxy Grand2
The latest firmware for Samsung Galaxy Grand2 (SM-G7105L) is G7105LUBUBOJ2 with Android 4.4.2 (KitKat), released on December 1, 2015 for 1 region (CSC). Every official firmware build for SM-G7105L, 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/G7105LUBUBOJ2
All 16 builds in our database run Android 4.4.2 (KitKat). The newest build, G7105LUBUBOJ2, was released on December 1, 2015. No new build has appeared for 132 months, so regular updates for this model have most likely ended.
Specifications of SM-G7105, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

SM-G710S

SM-G715A

SM-G720N0

SM-G611S

SM-G610S
The newest firmware for SM-G7105L runs Android 4.4.2 (KitKat): build G7105LUBUBOJ2, released on December 1, 2015.
The latest build for SM-G7105L, G7105LUBUBOJ2, was released on December 1, 2015 (10 years ago).
SM-G7105L has had no new firmware for 132 months, so regular updates have most likely ended.
Yes, all firmware files for SM-G7105L are 100% official, original, and obtained directly from Samsung servers.
To flash SM-G7105L, 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-G7105L.