Now, Samsung has released the January security update for both devices. However, in case you are wondering, the update is not based on Android 10. It is a standard security update for regular users who are not participating in the One UI 2.0 beta program.
At the moment, the Galaxy Note 8 update is available in Germany, at least the Exynos-powered model. It has a software version N950FXXS8DSL3. The Galaxy S9 update is available in France for users of carrier Bouygues. It has a software version G96*FXXS7CTA1.
To download the update on your phone, simply go to Software Update and click on Download and install.
We expect the rollout of the updates to spread to more countries in the coming days.