
Samsung Galaxy STAR
The latest firmware for Samsung Galaxy STAR (GT-S5282) is S5282XXAOA1 with Jelly(Android Bean), released on January 14, 2015 for 14 regions (CSC). Every official firmware build for GT-S5282, 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/S5282XXAOA1
All 11 builds in our database run Android 4.1.2. The newest build, S5282XXAOA1, was released on January 14, 2015. No new build has appeared for 143 months, so regular updates for this model have most likely ended.

GT-S7508

GT-S7500T

GT-S6812

GT-S6500L

GT-S5690L

GT-S5670

GT-S5570I

GT-S5303
The newest firmware for GT-S5282 runs Android 4.1.2: build S5282XXAOA1, released on January 14, 2015.
The latest build for GT-S5282, S5282XXAOA1, was released on January 14, 2015 (11 years ago).
GT-S5282 has had no new firmware for 143 months, so regular updates have most likely ended.
Yes, all firmware files for GT-S5282 are 100% official, original, and obtained directly from Samsung servers.
To flash GT-S5282, 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-S5282.