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The go-to-resource for information on MongoDB, the leading NoSQL database. MongoDB is an open source, JSON-based, document database with dynamic schemas.

[mongodb]

MongoDB 3.3.5 is released

MongoDB 3.3.5 has been released. As a reminder, 3.3.5 is a development release and is not intended for production use. The 3.3 series will evolve into 3.4, which will be for production.

New/fixed in this release:

SERVER-6823 Enable Access control without downtime

SERVER-10689 Add a $switch expression

SERVER-17258 Add $reduce expression operator for rollup of arrays

SERVER-20224 Commands which write should take a write concern

SERVER-23271 Add metrics to track index key additions and deletions for all CRUD ops/commands

SERVER-23358 Upgrade SpiderMonkey to 45.0.2 ESR

SERVER-23391 Improve behavior when running under WiredTiger on machines with little memory

All Issues | Downloads

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.2.6-rc0 is released

MongoDB 3.2.6-rc0 is out and is ready for testing. This is a release candidate containing only fixes since 3.2.5. The next stable release 3.2.6 will be a recommended upgrade for all 3.2 users.

MongoDB 3.2.6 includes the first production release of the In-Memory storage engine. For more details see https://docs.mongodb.org/manual/core/inmemory/

Fixed in this release:

SERVER-22970 Background index contains mismatched index keys and documents

SERVER-22043 count helper doesn't apply read preference

SERVER-23394 AuthorizationManager may deadlock while building role graph if profiling is enabled

SERVER-23766 Remove beta startup warning for inMemory storage engine

All Issues | Downloads | Release Notes

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.2.6 is released

MongoDB 3.2.6 is out and is ready for production deployment. This release contains only fixes since 3.2.5, and is a recommended upgrade for all 3.2 users.

Fixed in this release:

SERVER-22970 Background index contains mismatched index keys and documents

SERVER-22043 count helper doesn't apply read preference

SERVER-23394 AuthorizationManager may deadlock while building role graph if profiling is enabled

SERVER-23766 Remove beta startup warning for inMemory storage engine

All Issues | Downloads | 3.2 Release Notes

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.2.5 is released

MongoDB 3.2.5 is out and is ready for production deployment. This release contains only fixes since 3.2.4, and is a recommended upgrade for all 3.2 users.

Fixed in this release:

SERVER-23274 Aggregate with out, then stepdown, out collection dropped.

SERVER-23283 RangeDeleter does not log cursor ids correctly in deleteNow()

SERVER-22964 IX GlobalLock being held while wating for wt cache eviction

SERVER-22937 Retry catalog operations whenever possible

SERVER-22831 Low query rate with heavy cache pressure and an idle collection

SERVER-21681 In-memory storage engine not reporting index size

All Issues | 3.2 Release Notes | Downloads

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.2.5-rc1 is released

MongoDB 3.2.5-rc1 is out and is ready for testing. This is a release candidate containing only fixes since 3.2.4. The next stable release 3.2.5 will be a recommended upgrade for all 3.2 users.

Fixed in this release:

SERVER-23274 Aggregate with out, then stepdown, out collection dropped.

SERVER-23283 RangeDeleter does not log cursor ids correctly in deleteNow()

SERVER-22964 IX GlobalLock being held while wating for wt cache eviction

SERVER-22937 Retry catalog operations whenever possible

SERVER-22831 Low query rate with heavy cache pressure and an idle collection

SERVER-21681 In-memory storage engine not reporting index size

All Issues | Downloads

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.0.11 is released

MongoDB 3.0.11 is out and is ready for production deployment. This release contains a critical fix for chunk migrations in sharded clusters, and it's a recommended upgrade for all 3.0 users. For more details please see https://jira.mongodb.org/browse/SERVER-23425

Fixed in this release:

P2 SERVER-23425 Inserts during chunk migration get deleted in 3.0.9, 3.0.10

3.0 Release Notes | Downloads

As always, please let us know of any issues.

-- The MongoDB Team

We've released MongoDB 3.0.11 for production deployment. This is a recommended upgrade for all 3.0 users. Below is the announcement that went out to the community.

Enterprise builds are available here.

-- The MongoDB Team

[mongodb]

MongoDB 3.0.8 is released

MongoDB 3.0.8 is out and is ready for production deployment. This release contains only fixes since 3.0.7, and is a recommended upgrade for all 3.0 users.

This release candidate includes a critical fix for SERVER-21275: when using the WiredTiger storage engine, a race condition may prevent locally committed documents from being immediately visible to subsequent read operations. This bug may have an impact on both server and application operations.

All MongoDB 3.0 users running (or wishing to run with) the WiredTiger storage engine should upgrade to 3.0.8.

Please see SERVER-21275 for additional information

Also fixed in this release:

- SERVER-20303 Negative scaling at low thread count under WiredTiger when inserting large documents - SERVER-21027 Reduced performance of index lookups after removing documents from collection - SERVER-21553 Oplog grows to 3x configured size - SERVER-2454 Queries that are killed during a yield should return error to user instead of partial result set - SERVER-20407 findAndModify on mongoS can upsert to the wrong shard - TOOLS-939 Error restoring database "insertion error: EOF"

Downloads | All Issues

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

Announcing MongoDB 3.2 Now Generally Available

Today MongoDB 3.2 is generally available; you can download now.

Our community is critical to ensuring the quality of our releases. Thank you to everyone who participated in our 3.2 Bug Hunt. Winners were selected based on the user impact and severity of the bugs found.

Winner Stuart Hall | SERVER-21690

Honorable Mention Nick Judson | SERVER-21434

To learn more about MongoDB 3.2:

Find out more about MongoDB 3.2

Read the What’s New in 3.2 white paper

Register for Best Practices for Upgrading to MongoDB 3.2

Review the 3.2 release notes

[mongodb]

MongoDB 3.2.0-rc6 is released

MongoDB 3.2.0-rc6 is out and is ready for testing. This is the culmination of the 3.1.x development series.

Fixed in this release candidate:

SERVER-21726 WiredTiger primaries replicate no-op update, leading to out-of-sync secondaries and data loss

SERVER-21115 Add dbHash checking to concurrency suite

SERVER-21711 make currentJSExceptionToStatus more robust

SERVER-21690 Text Search - Performance Regression in 3.2.0 RC4

SERVER-21553 Oplog grows to 3x configured size

3.2 Release Notes | Downloads | All Issues

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.2.0-rc3 is released

MongoDB 3.2.0-rc3 is out and is ready for testing. This is the culmination of the 3.1.x development series.

Fixed in this release candidate:

SERVER-20164: Finish unit tests for CatalogManagerReplicaSet::addShard

SERVER-21287: $lookup should use $eq queries

SERVER-21298: rollback_index.js fails to wait for replication before continuing

SERVER-21292: replsets/remove1.js failed in replset_legacy suite

SERVER-20937: Add mode to FSM framework that drives greater amount of load on the system

SERVER-21099: Improve logging in SecureRandom and PseudoRandom classes

SERVER-20402: Add Election Failover JS tests

SERVER-21308: fsm-suite doesn't wait long enough for the distributed lock when dropping a collection

SERVER-20867: Integrate mongobridge into ShardingTest

SERVER-21355: Coverity analysis defect 76731: Unchecked return value

SERVER-21305: Lock 'timeAcquiringMicros' value is much higher than the actual time spent

SERVER-21371: find_and_modify_concurrent_update.js join() is called after read

TOOLS-983: mongorestore panic when restoring a compressed archive without using --gzip

Want to test the release? Get involved in the MongoDB Bug Hunt and enter for a chance to win some prizes for your contributions.

3.2 Release Notes | Downloads | All Issues

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

Announcing MongoDB 3.2

This week we announced MongoDB 3.2. The upcoming release will be generally available later this year.

MongoDB 3.2 includes several exciting enhancements, including document validation, an encrypted storage engine, the new MongoDB Connector for BI, improvements to Ops Manager and Cloud Manager, and the introduction of a graphical interface to MongoDB called Compass. To learn more, please check out the following resources:

Read more about MongoDB 3.2

Download the Release Candidate

Participate in the Bug Hunt (and win prizes)

Read the Blog Post from MongoDB CTO and Co-Founder’s Eliot Horowitz

Register for What’s New in 3.2 Webinar

[mongodb]

MongoDB 3.2.0-rc2 is released

MongoDB 3.2.0-rc2 is out and is ready for testing. This is the culmination of the 3.1.x development series. This release candidate includes community support for the $lookup operator.

Fixed in this release candidate:

SERVER-19095 $lookup

SERVER-20152 Lock SymmetricKey data pointer to avoid swapping

SERVER-20858 Invariant failure in OplogStones for non-capped oplog creation

SERVER-20901 Make LockPinging test in replset_dist_lock_manager_test robust to cv spurious wake ups

SERVER-20969 Enforce restriction that $indexStats is the first pipeline stage

SERVER-20977 improve code coverage of db/repl in unit test suite

SERVER-20979 add replication test commands to support failover time performance testing

SERVER-21102 Add more basic tests for split and auto split

SERVER-21109 Add test for balancer active window

SERVER-21150 Basic startup logging should be done as early as possible in initAndListen

SERVER-21169 Make all CSRS config server reads retry on notMaster and network errors

SERVER-21224 Use "git describe" instead of version.json to set release version

TOOLS-860 Add test coverage for intersection of tools and document validation

TOOLS-937 Run legacy and js tests against latest release

3.2 Release Notes | Downloads | All Issues

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.2.0-rc1 is released

MongoDB 3.2.0-rc1 is out and is ready for testing. This is the culmination of the 3.1.x development series.

The MongoDB 3.2 Bug Hunt is still on. Download, test, and submit bugs against this release candidate for a chance to win $2000 in prizes and tickets to MongoDB World 2016. For more information visit the info page.

Fixed in this release candidate: - SERVER-21057 Collection scan during concurrent move-update can return invalid results, trip fatal assertion (mmapv1 only) - SERVER-20406 Replication code misunderstands which storage engine is being used in some circumstances - SERVER-19739 Support replica set config servers with any storage engine that supports majority read concern - SERVER-20834 Perf tasks should only require compiling once before execution - SERVER-20449 Add regression analysis phase to Evergreen for Longevity tests - SERVER-20803 Run jstestfuzz unit tests as part of the Evergreen task - SERVER-20024 Community support for SLES 12 - SERVER-20921 Add jstest for oplog truncation on recovery - SERVER-20992 Failed global initialization error for commitIntervalMs in mongo.conf - SERVER-21036 don't spin in oplog deleter thread - SERVER-20533 Add analysis comparing mongo-perf throughput on WT against MMAPv1

3.2 Release Notes 

Downloads

All Issues

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.1.9 is released

MongoDB 3.1.9 has been released. As a reminder, 3.1.9 is a development release and is not intended for production use. The 3.1 series will evolve into 3.2, which will be for production. MongoDB 3.1.9 completes the new features that will be available in MongoDB 3.2: - Improved high-availability: config servers as replica sets and faster elections - WiredTiger as the default storage engine - Document validation rules - Partial indexes - Encryption at rest - SpiderMonkey as the Javascript engine - Multilingual case-sensitive full-text search and improved Unicode text search support - Aggregation and query optimizer improvements, including a sampling operator and outer left joins - Network stack improvements - Tools improvements New/fixed in this release: - SERVER-533: Aggregation stage to randomly sample documents - SERVER-1448: Host sharding config data on a replica set - SERVER-10225: Replica set failover speed improvement - SERVER-15176: New commands for find and getMore - SERVER-17861: Change the default storage engine to WiredTiger - SERVER-17991: Encrypted Storage Engine Enterprise - Single system key - SERVER-18624: listCollections command should not be O(n^2) on MMAPv1 - SERVER-20159: Out of memory on index build during initial sync even with low cacheSize parameter - SERVER-20339: Make NetworkInterfaceASIO the default factory - TOOLS-916: Mongo export throws reflect.Value.Type errors Release notes | Downloads | All Issues As always, please let us know of any issues. -- The MongoDB Team

[mongodb]

MongoDB 3.1.8 is released

MongoDB 3.1.8 has been released. As a reminder, 3.1.8 is a development release and is not intended for production use. The 3.1 series will evolve into 3.2, which will be for production.

New/fixed in this release:

- SERVER-785 Support Filtered (Partial) Indexes - SERVER-2227 Per index access stats - SERVER-12015 Reenable use of covering indexes with aggregation - SERVER-19007 Built-in facility for full-time diagnostic data capture - SERVER-19551 Keep "milestones" against WT oplog to efficiently remove old records - SERVER-19975 30% performance regression on simple insert workload on primary - SERVER-20204 Segmentation fault during index build on 3.0 secondary

Release notes | Downloads | All Issues

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.0.6-rc2 is released

MongoDB 3.0.6-rc2 is out and is ready for testing. This is a release candidate containing only fixes since 3.0.5. The next stable release 3.0.6 will be a recommended upgrade for all 3.0 users.

Fixed in this release:

SERVER-19464 $sort stage in aggregation doesn't call scoped connections done ()

SERVER-19644 Seg Fault on cloneCollection (specifically gridfs)

SERVER-19673 Excessive memory allocated by WiredTiger journal

SERVER-19805 MMap memory mapped file address allocation code cannot handle addresses non-aligned to memory mapped granularity size

SERVER-19987 Limit the size of the per-session cursor cache

3.0 Release Notes 

Downloads

All Issues

As always, please let us know of any issues.

-- The MongoDB Team

[mongodb]

MongoDB 3.1.7 is released

MongoDB 3.1.7 has been released. As a reminder, 3.1.7 is a development release and is not intended for production use. The 3.1 series will evolve into 3.2, which will be for production.

New/fixed in this release:

SERVER-19131 clusterManager role does not have permission for adding tag ranges

SERVER-19464 $sort stage in aggregation doesn't call scoped connections done 

SERVER-19513 Truncating a capped collection may not unindex deleted documents in WiredTiger

SERVER-19644 Seg Fault on cloneCollection (specifically gridfs)

SERVER-19673 Excessive memory allocated by WiredTiger journal

SERVER-19674 Fatal error calling createIndex with 2dsphere

SERVER-19805 MMap memory mapped file address allocation code cannot handle addresses non-aligned to memory mapped granularity size

SERVER-19824 Mongo shell should report that subprograms exited with non-zero exit code if they die

Downloads 

All Issues

As always, please let us know of any issues.

-- The MongoDB Team