Samsung has been comparatively slow in releasing security patches for the last two months, possibly because of work on Android Pie. The Galaxy J6+ was the first device to receive the February 2019 security patch. Samsung has now started rolling out an update with this month's security patch for the Galaxy A8+ (2018).
Samsung detailed the February 2019 security patch last week.
February 2019 security patch for Galaxy A8+
The Galaxy A8+ (2018) is receiving a new update in Trinidad and Tobago and Panama. The software version accompanying the update is A730FXXS4BSA8. The update brings the latest security patch, which includes fixes for five critical and dozens of high and moderate risk Android OS vulnerabilities. As many as 12 Samsung Vulnerabilities and Exposures items have also been fixed with this security patch.
As said earlier, Samsung is not actively releasing the latest security patch for its devices. Therefore, it may take some time before this update reaches your region and device. When available, you should get a notification to download the update. You can also manually check for updates in the Settings » Software update menu on the device by tapping the Download updates manually option.
Alternatively, you can download the compatible firmware from our database and flash it on your phone.