The main new feature of 2.5.0 is support for the new features of the 3.6 version of the server:
An online version of these release notes is available at:
The JIRA tickets resolved in this release is available at:
Documentation on the .NET driver can be found at:
http://mongodb.github.io/mongo-csharp-driver/
Upgrading
We believe there are only minor breaking changes in classes that normally would not be directly used by applications.
As always, please let us know if you have any problems by opening an issue at:
https://jira.mongodb.org/browse/CSHARP
The .NET Driver Team