Samsung started rolling out the third Android 10 One UI 2.0 beta update for the Galaxy Note 10 series. For now this update is available in India, soon it will be available in more regions.
The software version of this update is N970FXXU1ZSKN and N975FXXU1ZSKN for the Galaxy Note 10 and Note 10+ respectively. The size of this update is around 400MB. The latest beta update brings many bug fixes. It comes with December 2019 security patch.
To get it done just tap on Settings > Software update > Download and install in your device.