The 4.3.1 MongoDB Java & JVM Drivers release is a patch to the 4.3.0 release.
The documentation hub includes extensive documentation of the 4.3 driver, including
- What’s New: what’s new in the 4.3 driver
- Upgrading: upgrading from the 4.2.x and 3.12.x drivers
- Installation MongoDB Driver: how to get the Java driver
- Installation MongoDB Reactive Streams Driver: how to get the Reactive Streams driver
- Installation MongoDB Scala Driver: how to get the Scala driver
and much more.
You can find a full list of bug fixes here.