Driver 2.2.25 is a bugfix release and contains the following fixes.
2.2.25 2017-03-17
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* NODE-936 Correctly translate ReadPreference to CoreReadPreference for mongos queries.
* Exposed BSONRegExp type.
* NODE-951 Added support for sslCRL option and added a test case for it.
* NODE-953 Made batchSize issue general at cursor level.
* NODE-954 Remove write concern from reindex helper as it will not be supported in 3.6.
* Updated mongodb-core to 2.1.9.
* Return lastIsMaster correctly when connecting with secondaryOnlyConnectionAllowed is set to true and only a secondary is available in replica state.
* Clone options when passed to wireProtocol handler to avoid intermittent modifications causing errors.
* Ensure SSL error propegates better for Replset connections when there is a SSL validation error.
* NODE-957 Fixed issue where < batchSize not causing cursor to be closed on execution of first batch.
* NODE-958 Store reconnectConnection on pool object to allow destroy to close immediately.
Full history can be found at.