
Samsung Galaxy Grand Prime
The latest firmware for Samsung Galaxy Grand Prime (SM-G530F) is G530FXXS1ARK2 with Android 5.0.2 (Lollipop), released on April 3, 2019 for 2 regions (CSC). Every official firmware build for SM-G530F, newest first: one row per build with all regions (CSC) that received it.
SM-G530F started on Android 4 and has received 1 major Android upgrade; it now runs Android 5.0.2 (Lollipop). The newest build, G530FXXS1ARK2, was released on April 3, 2019. No new build has appeared for 92 months, so regular updates for this model have most likely ended.
Box codes of SM-G530F for different colors and markets. Firmware is chosen by the model code SM-G530F and your region (CSC), not by the SKU.

SM-G935TZK

SM-G930AZK

SM-G935AZS

SM-G935TZS

SM-G935AZK

SM-G935TZD

SM-G975WC

SM-G975FC
The newest firmware for SM-G530F runs Android 5.0.2 (Lollipop): build G530FXXS1ARK2, released on April 3, 2019.
The latest build for SM-G530F, G530FXXS1ARK2, was released on April 3, 2019 (7 years ago).
SM-G530F has had no new firmware for 92 months, so regular updates have most likely ended.
Yes, all firmware files for SM-G530F are 100% official, original, and obtained directly from Samsung servers.
To flash SM-G530F, 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-G530F.