Samsung's first phone to sport four rear cameras has just received its second major update. The Android 10/One UI 2.0 update arrives one year after the Galaxy A9 (2018) got the Android 9.0 Pie update. The changelog is not official yet, but all the One UI 2.0 and Android 10 goodies should be present.
https://www.notebookcheck.net/Quad-rear-camera-Samsung-Galaxy-A9-2018-gets-Android-10.459379.0.html