Samsung Galaxy Xcover 4 (launched in April this year) and last year’s Galaxy A7, are currently receiving June security patch as an OTA update.
The June update arrives as build number G390FXXU1AQF8 for Galaxy Xcover 4 and A7100ZCU1BQF1 for Galaxy A7 2016.
Similar to all security patches, the update takes care of various security vulnerabilities and brings along fixes to existing bugs. The update includes various other under-the-hood performance improvements as well as other minor system enhancements too.
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It is advisable to connect to a good Wi-Fi network before downloading the update and keep your handset charged as high as 50 percent.
If you haven’t received the update yet, you can check for it manually via the device settings. Go to Settings – About – Software updates.