A week after the Galaxy S9 and S9+ received their a dedicated Night mode, the Galaxy Note9 is getting the same treatment. The new firmware version N960FXXU3CSF9 has already begun rolling out to Galaxy Note9 units in Germany and weighs in at 704MB. Update change-log and Night Mode The main improvements with the new patch are in the camera department where users will be able to capture more detailed shots in low light scenarios with less noise compared to the existing scene optimizer. Another welcome addition is a built-in QR-code scanner available directly in the camera...
Source: https://www.gsmarena.com/samsung_begins_rolling_out_night_mode_for_galaxy_note9_with_latest_software_update-news-37609.php