Happy holidays indeed for Samsung Galaxy S9 and S9+ users! The stable version of Android 9.0 Pie rollout has begun in some countries.
The stable update is scheduled to be available on January 2019, but it seems that Samsung sent out an early gift. Android 8.1 Oreo and 9.0 Pie beta testers around the world will gradually receive the software updates: G960FXXU2CRLI (Samsung Galaxy S9) and G965FXXU2CRLI (Samsung Galaxy S9+).
If you are a Galaxy S9 or S9+ owner, you may check if the update is available in Settings > Software Update. From there, you may download your update manually, or look for the Download and Install option if you are a beta tester.
So far, the stable Android 9.0 Pie is rolling out now in Germany, Switzerland, Italy, and United Arab Emirates (UAE). Hang on guys, for it will surely arrive in the Philippines soon.