https://wccftech.com/samsung-is-already-testing-android-10-on-the-galaxy-s9/

Samsung, for all its technological prowess, still lags behind other OEMs when it comes to delivering major software releases. Android 10 has been around for a little over a month and has already made its way to the OnePlus 7 series. An earlier report suggested that an Android 10 beta for the Galaxy S10 and Note 10 series will get underway sometime before the month ends. Today, another report surfaced stating that they’re testing the software on the Galaxy S9 series.

Dutch website Galaxyclub.nl was privy to some information that shed some light on the endeavor. They bear firmware versions G960FXXU7DSI3 and G965FXXU7DSI3  for the Galaxy S9 and S9+ respectively and are based on Android 10, as confirmed by the letter ‘D’ which represents the next Android version. Current Android 9-based firmware has a ‘C’ in that same position. The builds are reportedly being tested internally and will be available to a broader audience in the coming month. They will, of course, come after the betas for the Galaxy S10 and Note 10 series drop. Overall, it is a lot earlier compared to last year and Samsung is making significant process in the regard. OneUI is one of the more heavily-skinned Android forks making development a lot trickier.