Release Notes for MongoDB 7.3
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Important
MongoDB 7.3 is a rapid release and is only supported for MongoDB Atlas. MongoDB 7.3 is not supported for use on-premises. For more information, see MongoDB Versioning.
Patch Releases
7.3.4 - Aug 15, 2024
Important
CSFLE and Queryable Encryption self-lookup may send malformed values in subpipelines
In MongoDB 7.3 prior to 7.3.4, a bug in query analysis of
certain complex self-referential $lookup subpipelines
may result in literal values in expressions for encrypted fields
being sent to the server malformed.
Should this occur, no documents are returned or written.
This issue affects the mongocryptd binary and mongo_crypt_v1
shared library in the following MongoDB Server versions:
7.3.0 - 7.3.3
7.0.0 - 7.0.11
6.0.0 - 6.0.16
5.0.0 - 5.0.28
Issues fixed:
SERVER-89529 Retryable writes during resharding may execute more than once if chunk migration follows the reshard operation
SERVER-91195 Provide a generic backportable solution not to miss top-level timeseries collection options
SERVER-91362 Do not copy JS "scope" object if a cached JsExecution exists
SERVER-91406 $changeStreamSplitLargeEvent returns Location7182803 error when used with non-renameable match expression
SERVER-91699 Subtracted memory greater than the total memory
7.3.3 - Jun 11, 2024
Issues fixed:
SERVER-78556 Return default of
internalInsertMaxBatchSizeto 64SERVER-83712 Do not add
$inlength to plan cache key if there is no sortSERVER-86674 Primary catch-up may believe it is caught up when it is not
SERVER-87961 Time series
$grouprewrite may produce incorrect results when a preceding$projectstage projects out accessed fields
7.3.2 - Apr 30, 2024
Issues fixed:
SERVER-82349: Mongo 7 crashes on applyOps index delete/drops without a collection UUID
SERVER-85892: $merge with pipeline after $documents returns error
SERVER-86583: Non-transactional snapshot read on unsharded collection may execute with mismatched sharding metadata
SERVER-88173: BinData bit comparisons give wrong results in many cases
WT-10807: Skip in-memory deleted pages as part of the tree walk
7.3.1 - Apr 4, 2024
Issues fixed:
SERVER-87191 Update without shard key might miss documents
SERVER-88360 Remove "Sharding catalog and local catalog collection uuid do not match" tripwire assertion
General Changes
Compaction Improvements
Starting in MongoDB 7.3, the compact command includes a new
freeSpaceTargetMB option to specify the minimum amount of storage space, in
megabytes, that must be recoverable for compaction to proceed.
Find Cursor Behavior on Views
Starting in MongoDB 7.3, when you use a find command on a view
with the singleBatch: true and batchSize: 1 options, a cursor
is no longer returned. In previous versions of MongoDB these find queries
would return a cursor even when you set the single batch
option to true.
serverStatus Metrics
Starting in MongoDB 7.3, the serverStatus command output
includes the following new metrics: