We are using Java Driver 2.6.5. Our biggest issues with the driver are the # of connections it uses (no shrinking, synchronous connection model), and lack of connection health management (when there are mongod segfault/failovers we will see exceptions hours later because bad connections aren't cleaned up).

I haven't seen much progress on this front in the last 6 months or so and I still see tickets like, https://jira.mongodb.org/browse/JAVA-424, unprioritized.

I would appreciate some comments on this and what the current plan is for the Java driver.