MongoDB 4.2.3-rc1 is released

[Kelsey Schubert]

MongoDB 4.2.3-rc1 is out and is ready for testing. This is a release candidate containing only fixes since 4.2.2. The next stable release 4.2.3 will be a recommended upgrade for all 4.2 users.

Fixed in this release:

 SERVER-42565  Aggregations and find commands sort missing fields differently
 SERVER-44598  Shards do not treat the IGNORED version as "intended sharded"
 SERVER-44828  Correct logic to re-compute dependencies after absorbing a $sort into query layer
 SERVER-44869  Add query knob to control memory limit for $push and $addToSet
 SERVER-44964  Calculate index build memory usage per key based on BSONObj buffer capacity, not size
 SERVER-44991  Performance regression in indexes with keys with common prefixes
 SERVER-45270  Increased vulnerability to slow DNS
 SERVER-45309  Ensure bind credentials live longer than LDAP operations
 SERVER-45396  fix the "me" field in isMaster responses when using splithorizon
 TOOLS-1952    Use --forceTableScan by default when running against WiredTiger nodes
 TOOLS-2453    Index keys not escaped correctly
 WT-5120       Checkpoint hangs when reconciliation doesn't release the eviction generation

4.2 Release Notes | All Issues | Downloads

As always, please let us know of any issues.

-- The MongoDB Team