Samsung has started pushing out the Android security patch for the month of May. The first device to receive this latest patch is the Galaxy J2 Pro (2018). The update is currently hitting units in the Asian country of Bangladesh. There's currently no information if any other changes are part of the update. Given that it's an over-the-air roll out, it might take time for the update notification to pop up on your unit, so be patient. Via
Source: https://www.gsmarena.com/samsung_begins_rolling_out_may_security_patch-news-30858.php
