Samsung has started rolling out the One UI 2.0 beta update to the Galaxy S10 series in India, Poland, and France. Importantly, it comes with November 2019 security patch.
The software version of this update is G970FXXU3ZSJF, G973FXXU3ZSJF, and G975FXXU3ZSJF for the Galaxy S10e, S10, and S10+ respectively. The size of this update is around 2000MB.
If you want to check for the update manually, you can do this by heading into the Settings > Software update > Download and install.