
The latest firmware for GT-I8262D is I8262DZCAMJ1 with Android 4.1 (Jelly Bean), released on October 29, 2013 for 1 region (CSC). Every official firmware build for GT-I8262D, 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/I8262DZCAMJ1
All 2 builds in our database run Android 4.1 (Jelly Bean). The newest build, I8262DZCAMJ1, was released on October 29, 2013. No new build has appeared for 158 months, so regular updates for this model have most likely ended.

GT-I9308

GT-I9268

GT-I9228

GT-I9210

GT-I9108
The newest firmware for GT-I8262D runs Android 4.1 (Jelly Bean): build I8262DZCAMJ1, released on October 29, 2013.
The latest build for GT-I8262D, I8262DZCAMJ1, was released on October 29, 2013 (12 years ago).
GT-I8262D has had no new firmware for 158 months, so regular updates have most likely ended.
Yes, all firmware files for GT-I8262D are 100% official, original, and obtained directly from Samsung servers.
To flash GT-I8262D, 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 GT-I8262D.