Earlier today, Samsung’s One UI 2.0 stable update started hitting the Galaxy S10 series in Germany. Initially only available to those part of the beta program it is now seeding to all phones in the country.
Galaxy S10 owners in Germany have started receiving the Android 10-based update which comes in at just over 1.9GB in size and also brings the December security patch. This should signal that more regions will also get the update soon.
Now if you don't live in Germany and hate waiting, the folks over at SamMobile have the firmwares for all three versions of the S10 ready for download through their repository. If you know your way around flashing firmwares on your S10, S10e or S10+ you can follow the source links below and get going.
Keep in mind that it’s always best to back up your data before tinkering with manual firmware updates and that you may end up damaging your phone if you aren't careful.