Samsung has released a new beta of Android Pie for their Galaxy Note 8 smartphone, Android Pie beta 4, this beta appears to have fixed many of the issues that were present in the third beta.
This suggests that the final version of Android 9.0 Pie should be released for the Galaxy Note 8 before the end of February, of course this has not been confirmed as yet.
The new Android Pie beta update for the Note 8 comes with the software version N950FXXU5ZSB2, the update is now available to try out for your device and it is around 577 MB in size.
The Samsung Galaxy Note 8 Android Pie beta 4 can be downloaded from the Settings on your device, you need to go to Settings > Software update > Download and install. You will need to be a member of the One UI beta program to try it out.