MongoDB 4.2.19-rc0 is released

MongoDB 4.2.19-rc0 is out and is ready for testing. This is a release candidate containing only fixes since 4.2.18. The next stable release 4.2.19 will be a recommended upgrade for all 4.2 users.


Fixed in this release:

  • SERVER-62065 Upgrade path from 3.6 to 4.0 can leave chunk entries without history on the shards
  • SERVER-60685 TransactionCoordinator may interrupt locally executing update with non-Interruption error category, leading to server crash
  • SERVER-60682 TransactionCoordinator may block acquiring WiredTiger write ticket to persist its decision, prolonging transactions being in the prepared state
  • SERVER-53335 Queries, updates, and deletes with non-"simple" collations may miss documents when using hashed sharding
  • SERVER-40691 $nin:[[],...] queries are not indexed
4.2 Release Notes | All Issues | All Downloads

As always, please let us know of any issues.

-- The MongoDB Team