After the Galaxy Note 9 update, T-Mobile is rolling out a new software update for the Galaxy Note 8, but it is not that big but somehow important. The Galaxy Note 8 is getting the November 2018 security patch, minor bug fixes, and few improvements.
The software version of this update is N950USQS5CRJ3. The update is 297.91MB in size.
If you are still waiting for this update on your device, you can check it manually by heading into Settings > Software Updates or you can simply wait for it.
Let us know if you see any specific improvement in this update.