The latest update for Galaxy J5 (2017) (also known as Galaxy J5 Pro) is rolling out in South Korea with firmware version J530LKLU7CUD2. The update for Galaxy J7 Duo has been spotted in Bangladesh, India, Nepal, South Korea, and Sri Lanka carrying firmware version J720FDDS7CUD2, while the South Korean users are receiving this as J727SKSU5CUD2. 

The April 2021 security update for Galaxy J8 is rolling out in several Asian countries carrying firmware version J810FJXS5CUD1. Also, the update has been released for Caucasus countries, Kazakhstan, Russia, and Ukraine, which has firmware version J810FJXS5CUD1. Notably, the update patches several vulnerabilities which were found in Samsung phones running on Qualcomm processor.   The update is currently rolling out in some specific regions and is expected to reach other regions very soon, where the device has been launched. Users can manually check for the latest update by navigating to Settings » Software updates. [via]

Samsung Galaxy J5  2017    Galaxy J7 Duo and Galaxy J8 receiving April 2021 security patch update - 83