MongoDB 3.2.6-rc0 is a release candidate that contains only fixes since the previous version 3.2.5 and is ready for testing. It includes the first production release of the In-Memory storage engine, which provides improved performance and reduced latency. This release addresses several issues, including mismatched index keys and documents in background indexes, incorrect read preference application, authorization manager deadlocks, and removal of beta startup warnings for in-memory storage engine. The next stable release 3.2.6 will be a recommended upgrade for all users of version 3.2.