Galaxy A8 (2018) starts receiving the Android Pie update in Europe - SamMobile
Set up SMS - Samsung Galaxy A8 (2018) - Android 7.1 - Device Guides
Samsung now releases Android 9 Foot for Galaxy A8 (2018) and A9 (2018) Samsung has started to release updates for Android 9 Pie on two more smartphones.
Galaxy A8 update: Android 9 Pie arrives on 2018 variants in Russia and Canada; A8 gets February patch
Download G885FDXU2BSF8 : Galaxy A8 Star Android 9.0 Pie Update
Samsung Galaxy A7, A8, and A9 closer to Pie update - Android Authority