4.4 Changelog

4.4.26 Changelog

Sharding

SERVER-50792 Return more useful errors when a shard key index can't be found for shardCollection/refineCollectionShardKey
SERVER-76056 countDocsDeletedOnDonor name is misleading
SERVER-80236 Race in migration source registration and capturing writes for xferMods for deletes

Internals

SERVER-63493 update-shard-key tests failing due to transaction lock timeouts
SERVER-71053 Fix dataSize can be negative and incorrect on rollback
SERVER-72532 CommandNotFound: no such command: 'shardVersion'
SERVER-73470 Log index inconsistencies detected by queries in the health log
SERVER-73497 Create an interface for the HealthLog
SERVER-74303 Add a sizeStorer call to the onRollback handler for dataSize and numRecords changes
SERVER-76341 Add range deletion throughput statistic
SERVER-78384 mongos should allow --port 0
SERVER-78687 Set up copybara syncing between 10gen/mongo and 10gen/mongo-copybara
SERVER-79471 Mirrored reads should include databaseVersion in addition to shardVersion
SERVER-79926 Investigate OCSP failure possibilities
SERVER-80021 Make $convert round-trip correctly between double and string
SERVER-80157 ExclusionProjectionExecutor forces Document cache to load excluded fields
SERVER-81106 Recipient shard doesn't wait for the collection version to be locally persisted before starting the cloning phase
SERVER-81202 Use host environment when signing
SERVER-81242 [v4.4] Improving interoperability between flushRouterConfig and CatalogCache refreshes
SERVER-81320 Update benchmarks_orphaned and benchmarks_sharding on v4.4
SERVER-81431 Add canaries_only task to older mongo branches
SERVER-81904 Address test-only issue in UpdateChunkMapRandom unit test
SERVER-81949 Sync from 10gen/mongo to mongodb/mongo on v4.4 with copybara
SERVER-81966 Avoid modification of previous ChunkMap instances during refresh
SERVER-81985 FlushRoutingTableCacheUpdates command should not be allowed on databases
SERVER-82043 Enhancement of Commit Message Validation for 10gen/mongo Commits
SERVER-82325 Config server could invariant during balancer round
SERVER-82391 [v4.4] Only allow github Apps Copybara Syncer: 10gen-to-Mongodb to syncs new commits to mongodb/mongo
SERVER-82449 [v4.4] Optimize copybara sync behavior for specific no-change scenarios
WT-7492 Ignore the evict drain wait msg in stdout.txt for test_cursor_random
WT-10380 Fix expected warning output in test_cursor_random: Eviction took more than 1 minute
WT-10424 cursor::search_near slow performance if many deleted items are present
WT-10432 Fix expected warning output for test_hs20 on macos
WT-11168 Remove the page image reuse logic
WT-11221 Python tests fails due to unexpected "Eviction took more than 1 minute" warning in standard output
WT-11584 Fix test_checkpoint_stats test

4.4.25 Changelog

Operations

SERVER-58534 Collect FCV in FTDC
SERVER-77610 Log session id associated with the backup cursor

Internals

SERVER-52452 Enable feature flag for Make taking self-managed backups in 4.4+ as safe as possible
SERVER-68132 Remove Feature Flag for PM-2076
SERVER-70973 Balancer should stop iterating collections when there are no more available shards
SERVER-71627 Refreshed cached collection route info will severely block all client request when a cluster with 1 million chunks
SERVER-73394 Remove misleading operationsBlockedByRefresh metrics
SERVER-75255 Remove all outdated entries from backports_required_for_multiversion_tests.yml
SERVER-78149 Implement the mongos fsync (lock : true) command
SERVER-78150 Implement the mongos fsyncUnlock command
SERVER-78151 Add fsyncLock status to the mongos currentOp command
SERVER-78153 Unlock the config server primary via the mongos fsyncUnlock command
SERVER-78156 Test the mongos fsync with lock command with distributed transactions
SERVER-78793 Add a timeout to the mongos FSync Lock Command
SERVER-78813 Commit point propagation fails indefinitely with exhaust cursors with null lastCommitted optime
SERVER-78987 Remove the free monitoring code from mongodb/mongo repo
SERVER-79025 Mongos Fsync with lock command should use mongos fsyncUnlock command
SERVER-79127 Error when $vectorSearch limit is <= 0
SERVER-79252 Add the system-perf bootstrap file to the task Files section
SERVER-79885 Oplog fetching getMore should not set null lastKnownCommittedOpTime if it is not using exhaust cursors
SERVER-80140 Use the $currentOp to verify that fsyncLockWorker threads are waiting for the lock
SERVER-80488 Avoid traversing routing table in balancer split chunk policy
SERVER-80491 Expose more granular metrics around balancing round
SERVER-80499 Fix use-after-free in planShardedSearch
SERVER-80544 Fix incorrect wait in runSearchCommandWithRetries
SERVER-80678 Remove an outdated test case
SERVER-80694 [v4.4] FCV gate null lastKnownCommittedOpTime behavior in oplog getMore
SERVER-80703 Avoid traversing routing table in MigrationDestinationManager
WT-8157 Fix format-abort-recovery-stress-test timeout condition
WT-8570 Do not increase oldest ID during recovery
WT-8614 Make format.sh more verbose for failure diagnosis
WT-8702 Limit oldest id to recovered checkpoint snapshot in recovery
WT-8709 RTS: Do not hold the oldest id of logged tables.
WT-8825 Fix test_checkpoint_snapshot05 expected value validation failure
WT-9248 Fix test_checkpoint_snapshot05 failure and convert python tests to use stats logic wait
WT-10449 Do not save update chain when there are no updates to be written to the history store
WT-10522 Fix a bug that leads to an unexpected aborted tombstone on update chain
WT-11374 Fix comparison of txnid to timestamp in row_modify (v5.0)
WT-11492 Assertion fires in test_checkpoint_snapshot05 on windows-64

4.4.24 Changelog

Internals

SERVER-50606 NetworkInterfaceTest needs to be more permissive with async op timeout
SERVER-54344 Interruptible's Atomic timer parameter is not typesafe
SERVER-58959 Fix and reenable Interruptible::WaitUntilDeadline test
SERVER-71335 Debug symbols of server binaries used by system_perf.yml are archived in S3
SERVER-76299 Report writeConflicts in serverStatus on secondaries
SERVER-77299 Pooled LDAP connections may reference out-of-scope memory after timeout
SERVER-77856 Provide Atlas with a way to choose a specific initial sync sync source
SERVER-78251 move_chunk_deferred_lookup.js can fail if mongos RSM is stale after stepup
SERVER-78676 Replace c-string constructor with fill constructor in CurrentOpExhaustCursorTestFixture::initTestCollection on v5.0
SERVER-78789 Distribute roles in metadata sizing test
SERVER-78828 LDAP host timing data can be inconsistent during sorting
SERVER-78888 Unschedule Mix js
SERVER-79022 Update ASIO's Git hash in README.third_party.md
SERVER-79261 Add logging to ping monitor
SERVER-79592 [v4.4, v5.0] Avoid server crash when using positional projection with collation
SERVER-79651 Only use two node replicasets in initial sync performance tests
WT-8539 Correct description for statistic for rolling back oldest pinned.
WT-10197 Track eviction timeline
WT-10911 Investigate and update eviction timeline metrics that are showing up incorrectly
WT-11031 Fix RTS to skip tables with no time window information in the checkpoint
WT-11312 Fix incorrect flag check for accurate force eviction stat
WT-11380 Temporarily disable compile-clang task on 5.0

4.4.23 Changelog

Sharding

SERVER-76948 Allow shard key fields to contain DBRefs
SERVER-78050 Chunk Migration Can Lose Data If Processing Deferred Modifications
SERVER-78414 Recipient shard in chunk migration can skip fetching changes to the migrated range, leading to lost writes

Query

SERVER-75922 Partial unique indexes created on MongoDB 4.0 can be missing index keys after upgrade to 4.2 and later, leading to uniqueness violations

Internals

SERVER-50402 Expose original assertion in change_streams_unsharded_update_resume.js
SERVER-73662 tlsClusterCAFile is not being used to validate client certificates on Windows
SERVER-73943 Pin code pages in memory in memory constrained systems
SERVER-74104 [v5.0] Disable journal flusher in validate_out_of_order.js
SERVER-74471 Prune existing tests to stabilize the signal from the change stream perf suite
SERVER-74806 Write size estimation logic does not account for runtime/let constants
SERVER-75392 Update rounding functions in S2 geometry library
SERVER-76006 break compile_dist_test into small chunks in a new kind of task group
SERVER-76179 "/var/run/mongodb/"mongod.pid" deleted on each Mongod shutdown
SERVER-76824 Do not run mr_single_reduce.js in stepdown suites
SERVER-76884 [v4.4] Chunk migration recovery can deadlock on stepup taking MigrationBlockingGuard (v4.4 only)
SERVER-77028 tlsClusterCAFile is not being used to validate client certificates on macOS
SERVER-77074 mongod termination process should always shutdown and join the CatalogCached's thread pool
SERVER-77298 Prevent fassert after killing opCtx as part of reconstructing prepared transactions after initial sync
SERVER-77356 [v4.4] Add ubuntu22 variants
SERVER-77383 ".msi.sha256" files have incorrect shasum
SERVER-77527 mongodbtoolchain/v3 stdlib unsafe against self-moves
SERVER-77534 Fix diff finder to handle deleted files correctly
SERVER-77602 [4.4] remove publish tasks for ubuntu22 variants
SERVER-77922 Add requires_collstats tag to rename.js on 4.4
SERVER-78116 [v4.4] Chunk migration still attempts to wait for replication with session checked out when getLastErrorDefaults are used in replica set config
SERVER-78126 For specific kinds of input, mongo::Value() always hashes to the same result on big-endian platforms
SERVER-78314 Create documentSourceWriterBatchBuffer server parameter
SERVER-78484 Preserve snapshot history in transactions_target_at_point_in_time.js on v4.4
WT-7401 Silent test/format failure in the long-test Evergreen task
WT-8601 Timestamps do not work with logged tables.
WT-8822 Disable logging in failing configs
WT-9721 Format stress tests generate cores even when successful
WT-10671 Reset statistics when retrying test in test_checkpoint04.py
WT-10900 Segmentation fault on unit-test-macos on macos-1100
WT-10909 Simplify new test_backup29.py more
WT-10920 Minor cleanup to test_backup29.py
WT-11036 Add test of incremental backup after files are closed by dhandle sweep
WT-11122 Disable FLCS scenario in the long-test task for 5.0
WT-11140 Update Python path for Windows variants

4.4.22 Changelog

Query

SERVER-48196 Upgrade the timelib to the latest to update the built-in timezone files to the latest

Internals

SERVER-57056 Syslog severity set incorrectly for INFO messages
SERVER-62053 Add retry for errors in AWS server-side conversation
SERVER-66009 Ban $search when running in update pipeline (stub process interface is present)
SERVER-71089 Run signing tasks on a single distro
SERVER-71249 Remove buildvariant task overrides for .publish tags
SERVER-72815 Extend serverstatus to track Document count and Duration for updateMany and deleteMany
SERVER-73007 CURL_OPT_SEEKFUNCTION not set for multi-pass authentication
SERVER-75010 Implement no-op planShardedSearch in 5.0
SERVER-75369 Fix the overflow of total possible enumeration count in LockstepOr enumeration strategy
SERVER-75404 Designate $searchSortValues as metadata field on v5.0
SERVER-75479 Use system python on macos for ssl tests
SERVER-75652 Migrate from notary client to garasign for push task
SERVER-76063 Update the getFreeMonitoringStatus command to always return state: disabled
SERVER-76274 Move microbenchmarks to their own task distro
SERVER-76378 Use estimated impersonation metadata size in calculating block chunks
SERVER-76498 Update push task to run on rhel8.7-small
SERVER-76599 Exclude jstests/sharding/balancer_collection_status.js from step-down suites
SERVER-76619 Add setParameter to enable libcurl's verbose logging
SERVER-76695 initial_sync_nodes_maintain_and_gossip_commit_point.js should wait longer for initial sync node to advance commit point
SERVER-76698 Disable Curl Connection Pooling for STS requests
SERVER-76699 Add configurable retry count in AWS IAM code
SERVER-76721 Robustify plan_cache_stats_shard_and_host.js to count plan cache entries only for specific plan cache key
WT-8689 Switch Evergreen zSeries builder to RHEL distro
WT-8981 Enable evergreen testing for RHEL8 on PPC
WT-10551 Incremental backup may omit modified blocks
WT-10932 Disable many-collection-test on release branches

4.4.21 Changelog

Sharding

SERVER-73877 Wait for shard to have a primary before doing a migration in prepare_transaction_then_migrate.js

Query

SERVER-48196 Upgrade the timelib to the latest to update the built-in timezone files to the latest

Internals

SERVER-57056 Syslog severity set incorrectly for INFO messages
SERVER-66927 Remove reference to silentFail from mongo repo
SERVER-73400 Use -large Evergreen distro for compiling on arm64 in sys-perf project
SERVER-75066 Check for parent directory before writing to SCons cache
SERVER-75172 Use unique collection name in partial_index_logical.js
SERVER-75261 "listCollections" command fails with BSONObjectTooLarge error
SERVER-75404 Designate $searchSortValues as metadata field on v5.0
SERVER-75561 Report and log more detailed information when validate encounters multikey inconsistencies
SERVER-75789 [v4.4] Require WT engine for read_ticket_exhaustion_with_stepdown test
SERVER-75795 Update aws_e2e_ec2.js for evergreen changes to AWS test identity
SERVER-76047 [v4.4] Fix prepare_transaction_then_migrate.js test
SERVER-76098 Allow queries with $search and non-simple collations
SERVER-76274 Move microbenchmarks to their own task distro

4.4.20 Changelog

Sharding

SERVER-48651 Avoid lock timeout errors in refine_collection_shard_key_basic.js
SERVER-62036 Failures in preCacheMongosRoutingInfo() will cause mongos to fail startup
SERVER-74124 Disallow sharding with wildcard shard key pattern

Internals

SERVER-51835 Mongos readPreferenceTags are not working as expected
SERVER-57065 access_collection_in_transaction_after_catalog_changes.js should expect the NoMatchingDocument error code when an index build is aborted
SERVER-59169 Use larger machines for large inMemory tests
SERVER-60485 Tasks which run on the MigrationUtilExecutor must not wait for shutdown to complete
SERVER-64031 serverStatus should not take PBWM lock
SERVER-68434 Equality to null can incorrectly use a cached partial ixscan which does not cover the predicate
SERVER-68594 Add vscode format/lint on save
SERVER-71307 Aggregations with $search should fail if the resolved collation is non-simple
SERVER-72194 oplog_rollover.js should wait for the durable timestamp to advance
SERVER-72519 Add arm and intel Microbenchmark test variants to Sys Perf
SERVER-72520 Decommission Microbenchmark performance tests that are running on CBI instances
SERVER-72542 fullValidate should not return a count of items
SERVER-73157 Move out_max_time_ms tests to serial_run suite
SERVER-73228 Remove active directory server from jstests/external_auth/ldap_mongos_health_checking.js
SERVER-73400 Use -large Evergreen distro for compiling on arm64 in sys-perf project
SERVER-73522 [4.4] Backport setProfilingFilterGlobally command
SERVER-74038 [Windows] Possible negative performance effects of SetProcessWorkingSetSize in SecureAllocator
SERVER-74045 Allow turning on diagnostic log messages for validate
SERVER-74131 Multiplanning together with subplanning causes server crash in mapReduce queries
SERVER-74137 [v5.0] Tag validate_out_of_order.js with requires_replication
SERVER-74156 Package plist files with macosx releases
SERVER-74287 create scons OOM retry tool
SERVER-74345 mongodb-org-server 4.4.19, 5.0.15, 6.0.5 not starting after upgrading from older version (Debian, RPM Packages)
SERVER-74386 Don’t reset recordPreImages on collMod [6.0 only]
SERVER-74431 [v4.4] Mark partial_index_logical.js as requires_fcv_44
SERVER-74631 Log index spec when validation detects index key inconsistencies
SERVER-74632 Log $collStats output when a collection fails validation
SERVER-74690 Change Atlas Real variants to use “2022-11” workload client
SERVER-74698 [v4.4] Tag validate_out_of_order.js with requires_wiredtiger
SERVER-74845 Create mechanism to ignore ignore fork option with systemd
SERVER-74895 Expect command errors in validation when querying $collStats, and improve the error message
SERVER-75172 Use unique collection name in partial_index_logical.js
SERVER-75205 Deadlock between stepdown and restoring locks after yielding when all read tickets exhausted
SERVER-75397 Make v5.0/v4.4 required variants run every other day
SERVER-75561 Report and log more detailed information when validate encounters multikey inconsistencies
SERVER-75789 Require WT engine for read_ticket_exhaustion_with_stepdown test
WT-8379 Do not disable eviction during shutdown
WT-8651 Allow checkpoint scrub during shutdown
WT-8652 Do not skip the final metadata checkpoint when shutdown configured with use_timestamp=true
WT-9251 Perform log flush before the metadata checkpoint
WT-9500 Fix RTS to use cell time window instead of key/value timestamps of HS update
WT-9792 Fix RTS to remove globally visible update of the data store update from the history store
WT-9926 A crash during startup from backup can lose metadata

4.4.19 Changelog

Sharding

SERVER-68361 LogTransactionOperationsForShardingHandler::commit misses transferring documents from prepared and non-prepared transactions changing a document's shard key value
SERVER-71219 Migration can miss writes from prepared transactions
SERVER-73106 [v4.4] Chunk migration attempts to wait for replication with session checked out when getLastErrorDefaults are used in replica set config, leading to server crash

Storage

SERVER-30888 Have FTDC code paths obtain locks with a timeout.

Operations

SERVER-67704 Add count of cpu sockets to FTDC metadata
SERVER-67705 Add count of NUMA zones to FTDC metadata

Build and Packaging

SERVER-38232 Mongod on Ubuntu 16/18 does not create a pid file

Internals

SERVER-52545 Specify input/output to listIndexes command in IDL
SERVER-61032 Convert all references to /opt/mongodbtoolchain/gdb to a versioned equivalent
SERVER-63271 serverStatus can fail the server
SERVER-65259 Cursor leak in aggregation that requires merging on shard
SERVER-66050 findSelfInConfig should attempt fast path for every HostAndPort before trying slow path
SERVER-67795 Add serverstatus tracking to know how many users use updateMany and DeleteMany
SERVER-68122 Investigate replicating the collection WiredTiger config string during initial sync
SERVER-68126 Check for negative maxChunkSize input value in AutoSplitVector
SERVER-68576 We need to know how many sharded collections exist in a cluster
SERVER-68836 Properly handle NaN and 0 in for LDAPTimeoutMS
SERVER-68901 Incorrect $elemMatch query analysis in mongocryptd if document contains 2 different fields with the same name
SERVER-69001 Initial sync should set the minValid document to the "stopTimestamp"
SERVER-69944 Resmoke's globstar.py does not properly parse * before **
SERVER-70084 update change stream multiversion tests for 4.4 to consider per shard cursors
SERVER-70235 Don't create range deletion documents upon v4.2-v4.4 upgrade in case of collection uuid mismatch
SERVER-70427 Remove chef+kitchen package test infrastructure
SERVER-70553 Add module support to the mongo test runner
SERVER-70594 Add updated build variants to sys-perf
SERVER-70971 [v4.4] Backport skipping RSTL lock in serverStatus
SERVER-71191 Deadlock between index build setup, prepared transaction, and stepdown
SERVER-71424 Fix failures in lint_fuzzer_sanity
SERVER-71436 Range deleter must not aggressively spam the log when shard key index not found
SERVER-71449 Fix log_successs_msg: not found in init.d on debian
SERVER-71471 Improve jstestfuzz deployment to work with new node run/install
SERVER-71533 Update legacy task generation to use new test stats location
SERVER-71534 lint_fuzzer_sanity_all regression caused by running multiple instances of npm
SERVER-71623 Temporary disable lint_fuzzer_sanity_patch
SERVER-71624 Remove lint_fuzzer_sanity_patch in favor of lint_fuzzer_sanity_all
SERVER-71759 dataSize command doesn't yield
SERVER-71769 Add a new log message when a secondary node is skipping a two-phase index build
SERVER-71772 Update ARM builds to target armv8.2-a on older branches
SERVER-71875 Stop run jstestfuzz on rhel62
SERVER-71950 Fail and log the operation when out-of-order keys are detected in WiredTiger
SERVER-71969 Update system_perf.yml for compile-variant and compile_variant.
SERVER-72136 Cast 'numShardedCollections' to 'size_t' in sharding_server_status.cpp
SERVER-72140 Remove move_chunk_large_chunk_map_workloads task from Linux Shard Lite Cluster 2022-11 variant
SERVER-72143 Fix sys-perf logkeeper links on 5.0 and 4.4
SERVER-72170 Remove sys-perf 1 day history variant from sys-perf-4.4
SERVER-72222 MapReduce with single reduce optimization fails when merging results in sharded cluster
SERVER-72223 Disallow majority reads from reads_during_catchup.js for ephemeralForTest in 4.4
SERVER-72276 Remove all outdated entries from backports_required_for_multiversion_tests.yml
SERVER-72288 microbenchmark tests fail after "Enable M1 Mac support for DSI"
SERVER-72294 Upgrade all uses of sus12 to suse12-sp5
SERVER-72512 Indexes reported as valid when unable to return inconsistencies due to memory limit
SERVER-72535 Sharded clusters allow creating the 'admin', 'local', and 'config' databases with alternative casings
SERVER-72620 $indexStats doesn't include the "shard" field when run on unsharded collections
SERVER-72677 Full validation doesn't always report information about indexes
SERVER-72825 Remove all outdated entries from backports_required_for_multiversion_tests.yml
SERVER-73176 Only print error message if there were in fact errors in getHostFQDNs
SERVER-73183 WiredTigerKVEngine::getSanitizedStorageOptionsForSecondaryReplication should skip inMemory
SERVER-73232 Change the default log-verbosity for _killOperations
SERVER-73256 [v4.4] Disable rolling_index_builds_interrupted.js from running on single phase index build variants
SERVER-73481 Validate does not detect out-of-order keys with {full: false}
SERVER-73636 Coverity analysis defect 135025: Inefficient vector resizing with reserve.
SERVER-73706 Save WTRecordStoreUassertOutOfOrder fail point state to prevent concurrency bugs in testing
SERVER-73719 Comment out Legacy Build Variants in Sys-perf
SERVER-73745 Zero initialize IndexKeyBucket struct
WT-8234 Prevent eviction of internal pages while reconciling leaf pages which could refer to their memory
WT-9323 Fix a race tracking whether a tree has updates after a checkpoint
WT-9599 Acquire the hot backup lock to call fallocate in the block manager
WT-9763 Return EBUSY if the time window of inserting record does not match with history store time window
WT-10291 Ensure failure configs task executes test format once per configuration.
WT-10461 Fix key out of order in skip list on weakly ordered architecture
WT-10584 Add missing read barriers in __cursor_skip_prev

4.4.18 Changelog

Query

SERVER-50454 Avoiding sending the "keyValue" field to drivers on duplicate key error
SERVER-66289 $out incorrectly throws BSONObj size error on v5.0.8

Operations

SERVER-67793 log_progress_msg in init.d does not print message

Build and Packaging

SERVER-48203 Support --install-action for Ninja builds

Internals

SERVER-56368 Prohibit running $backupCursor/$backupCursorExtend on an aggregation against a collection
SERVER-58673 Enable featureFlagPerShardCursor
SERVER-61185 Use prefix_search for unique index lookup
SERVER-62400 Add $_passthroughToShard parameter to AggregateCommandRequest
SERVER-62681 Create change streams per shard cursor passthrough suite
SERVER-62738 Give mongos the ability to passthrough to a specific shard
SERVER-63585 Fastcount gets out of sync when a delete rollbacks and another transaction deletes the same rows
SERVER-63772 Post Batch Resume token not sent on initial batch from per shard cursor change stream
SERVER-63773 Per Shard cursor post batch resume token not set in getMore responses
SERVER-63774 Pass optional dbVersion to runPipelineOnSpecificShard
SERVER-63781 $sortKey not filtered out in initial batch from post batch resume token
SERVER-68115 Bug fix for "elemMatchRootLength > 0" invariant trigger
SERVER-68126 Check for negative maxChunkSize input value in AutoSplitVector
SERVER-68470 Amazon Linux 4.2/4.4 RPMs fail to install due to missing shadow-utils
SERVER-69001 Initial sync should set the minValid document to the "stopTimestamp"
SERVER-69003 [4.4] backport pm-2419 Per Shard Cursors via mongos
SERVER-69133 remove redundant setting of hardlink install action
SERVER-69281 Force minimum ninja version
SERVER-69348 Commands must declare empty auth checks to be universally callable
SERVER-69389 Command checkAuthorization may throw ErrorCodes::NamespaceNotFound for existing collection while trying to resolve UUID to namespace when the node is shutting down.
SERVER-69443 [4.4] Allow speculative majority reads in multi-doc txns when --enableMajorityReadConcern=false
SERVER-69446 Increase electionTimeoutMillis in jstests/replsets/dbcheck_write_concern.js
SERVER-69569 Python scripts failing in Evergreen tasks
SERVER-69785 robustify change_streams_per_shard_cursor.js
SERVER-69868 Return an error when starting a TransportLayer that is shutdown
SERVER-69912 SConstruct is executable by mistake
SERVER-70235 Don't create range deletion documents upon v4.2-v4.4 upgrade in case of collection uuid mismatch
SERVER-70299 Remove JSON.send command usage
SERVER-70348 Remove EAGAIN for queryable WT and retry internally
SERVER-70398 Handle case when execution doesn't exist
SERVER-70469 Use virtual env python in watchdog tests
SERVER-70483 Update Resmoke to pass "evergreen_execution" up to logkeeper.
SERVER-70484 Remove signal processing module from perf.yml and sys_perf.yml
SERVER-70633 Make per shard cursors suite actually run tests in 5.0
SERVER-70938 Remove --system-site-packages from virtual env setup
WT-7912 Fix prefix search near optimisation to handle scenarios where the key range is split across pages.

4.4.17 Changelog

Sharding

SERVER-50898 safe_secondary_reads_causal_consistency.js must wait for effects of _configsvrCommitChunkMigration to be majority-committed snapshot on all CSRS members
SERVER-56127 Retryable update may execute more than once if chunk is migrated and shard key pattern uses nested fields
SERVER-63732 Add new implicitlyCreateIndex and enforceUniquenessCheck to shardCollection command
SERVER-64142 Add new enforceUniqueness to refineCollectionShardKey command
SERVER-69220 refineCollectionShardKey permits toggling current shard key fields between range-based and hashed, leading to data inconsistency
SERVER-69228 The chunk_migration_with_schema_validation.js fails multi version test suites (v4.4 and v4.2)

Operations

SERVER-68548 mongo shell version 4.4.15 logging asio message despite --quiet flag

Internals

SERVER-52676 Hedged reads should ignore stale errors
SERVER-61275 Destruct the size storer after the session cache has shutdown
SERVER-64573 Make implicitlyCreateIndex and enforceUniquenessCheck fields optional
SERVER-64741 Create mongos appendOplogNote command
SERVER-65382 AutoSplitVector should not use clientReadable to reorder shard key fields
SERVER-67465 Ensure timeouts do not fail hedged operations
SERVER-68039 Old pymongo version 3.10.1 on MongoDB v5.0 causes Invariant failure (message.operation() == dbMsg) after connection reset by peer
SERVER-68691 $graphLookup does not report variable references for 'restrictSearchWithMatch' filter
SERVER-68694 Investigate the locking around the compact command
SERVER-68766 Add option to re-enable single value MapReduce optimization
SERVER-68925 Reintroduce check table logging settings at startup (revert SERVER-43664)
SERVER-69268 Disable bypass compile during burn_in_tags_gen
SERVER-69590 libunwind warnings on clang arm platforms
SERVER-69611 Set the -ffp-contract=off compiler option by default
WT-9302 Deprecated object_target_size as a config in api_data.py
WT-9311 Ensure log messages clearly identify storage HW corruption
WT-9477 Don't allow checkpoint triggering internal page split which leads to corrupted internal page in the checkpoint
WT-9870 Fix updating pinned timestamp whenever oldest timestamp is updated during recovery

4.4.16 Changelog

Sharding

SERVER-40865 The ShardServerCatalogCacheLoader does not serialize read operations with other operations for the same collection
SERVER-51056 Disable refine_collection_shard_key_atomic.js from running in sharding_csrs_continuous_config_stepdown suite
SERVER-56185 Investigate possible improvements with session migration and a chunk migration's critical section
SERVER-58747 The ShardServerCatalogCacheLoader doesn't interrupt ongoing operations on step up
SERVER-62656 Decouple mongos-to-config-server connection pool sizing from mongos-to-shard-server connection pool sizing
SERVER-63243 Range deleter must not clean up orphan ranges in a round-robin fashion
SERVER-67492 Failed chunk migrations can lead recipient shard to have divergent config.transactions records between primary and secondaries

Query

SERVER-67012 Command error on specific combination of compound index

JavaScript

SERVER-61234 JS object-based types are not properly auto-serialized when directly returned by server-side JS functions

Operations

SERVER-50138 Server logs a warning: "No TransportLayer configured during NetworkInterface startup" for each bound socket

Build and Packaging

SERVER-61894 Support the 'showRawUpdateDescription' option in change stream specs
SERVER-63159 Implement the $_internalApplyOplogUpdate aggregation stage

Internals

SERVER-52641 indexbg_restart_secondary.js should wait for all three index builds to start before restarting the secondary
SERVER-58176 Mongos does not validate readConcern on insert/update/delete commands
SERVER-59658 Improve logging to reflect that sharding metadata refresh waiting on replication
SERVER-60334 Avoid caching the cursor and session in WiredTigerSizeStorer
SERVER-60607 improve handling of large/NaN values for geo index version
SERVER-60958 Avoid server hang in chunk migration when step-down event occurs
SERVER-61321 Improve handling of large/NaN values for text index version
SERVER-64244 RunDBCheckInBackground should be resilient to interrupts
SERVER-64403 Find queries with SORT_MERGE collation-encode the missing sort attribute
SERVER-64659 Report in serverStatus number of file descriptors used during index builds
SERVER-64797 Use WT's new numerical timestamp API
SERVER-65262 Expand usage of WT numerical timestamp API
SERVER-65399 'commitIndexBuild' oplog entry is a no-op for unfinished index builds not restarted
SERVER-66310 Make ExpressionSetUnion::isCommutative() collation aware
SERVER-66418 Bad projection created during dependency analysis due to string order assumption
SERVER-66461 Run notarization earlier in the build process
SERVER-66548 $lookup sequential cache can incorrectly treat a $facet as non-correlated
SERVER-66556 Prevent potential race when releasing cursors during shutdown
SERVER-66621 Primary node stuck waiting for secondary to finish indexBuild when downgrading from 4.4 to 4.2
SERVER-66651 Role "restore" not sufficient for mongorestore --preserveUUID
SERVER-66726 Fix serialization in killAllSessionsByPattern
SERVER-66841 LOGV2: invalid JSON when truncation happens at a backslash character
SERVER-66938 Drastically simplify command to generate ninja files
SERVER-67122 Add warning when building with --module=ninja that it is deprecated
SERVER-67164 Fix package tests v4.4
SERVER-67220 [5.0] set_fcv_prepared_transaction.js is not resilient to StaleConfig errors
SERVER-67296 Mark the OpCtx of the configsvr commands used to commit chunk-related DDL ops as interruptible
SERVER-67302 "Reading from replicated collection without read timestamp or PBWM lock" crash with clock changes
SERVER-67398 The build with the legacy install mode is broken
SERVER-67532 Fail less in OplogServerStatusSection
SERVER-67662 [4.4] evergreen.yml "scons lint" fails to handle empty string for is_patch variable
SERVER-67683 Change some of the modes in fast and opt builds
SERVER-67993 fix 4.4 pylinters errors
SERVER-68130 AutoSplitVector could generate response bigger than BSONObjMaxUserSize
SERVER-68158 serverstatus_indexbulkbuilder.js should run listIndexes on primary after creating indexes
SERVER-68184 Use Number instead of NumberLong when indexing in checkWritesOfCommittedTxns
SERVER-68359 [4.4] Prevent TTLMonitor from processing index if expireAfterSeconds is NaN
SERVER-68418 [4.4] index_build_restart_secondary.js does not support single phase index builds
SERVER-68487 add BSONElement method to check for NaN field values
SERVER-68540 Add docker_incompatible tag for jscore tests
SERVER-68574 Switch to the new logkeeper cluster
WT-9029 Remove object_target_size option from WT_SESSION::create
WT-9096 Fix search near returning wrong key/value sometimes when key doesn't exist

4.4.15 Changelog

Sharding

SERVER-51064 Make "Destination shard cannot be the same as source" an acceptable error in random_moveChunk_index_operations.js
SERVER-61249 refine_collection_shard_key_basic.js relies on a best-effort refresh that might not happen in case of failover
SERVER-62175 Mongos fails to attach RetryableWrite Error Label For Command Interrupted In _parseCommand
SERVER-62272 Adding schema validation to a collection can prevent chunk migrations of failing documents
SERVER-65821 Deadlock during setFCV when there are prepared transactions that have not persisted commit/abort decision
SERVER-66041 Chunk cloner must never consider too big a chunk with only one document

Query

SERVER-63642 Add serverStatus metrics to measure multi-planning performance

Build and Packaging

SERVER-42470 Generate additional configuration for libunwind
SERVER-64332 Notarize MongoDB builds for macos

Internals

SERVER-54900 Blocking networking calls can delay sync-source resolution indefinitely
SERVER-55173 Segmentation fault in WiredTigerSession::releaseCursor
SERVER-58506 Command to expose settability for Server Parameters
SERVER-60758 Prevent dbVersion refreshes from failing transactions in txn_recover_decision_using_recovery_router.js
SERVER-61018 Create a generic histogram type
SERVER-61095 Improve transport_layer_asio_test.cpp
SERVER-61097 SizeStorer can cause deadlocks with cache eviction
SERVER-61856 Upgrade libunwind to 1.6.2+
SERVER-62941 Update FTDCServerStatusCommandCollector to include oplog metrics from serverStatus command
SERVER-62992 Remove need for resmoke.ini
SERVER-63421 [v4.4] Relax term limit check in replica set to check for long long boundaries instead of int
SERVER-63479 Correct $$SEARCH_META ban in sharded environments
SERVER-64184 Track usage of allowDiskUse:true in agg command
SERVER-64664 ninja tool should not consider install files generated source
SERVER-65024 Multiple documents with the same _id value make reIndex invariant
SERVER-65131 Disable opportunistic read targeting (except for hedged reads)
SERVER-65166 Use compareOptimes in abort_in_progress_transactions_on_step_up.js
SERVER-65271 serverStatus should allow fine-grained metrics exclusion
SERVER-65636 Remove limits on number of LDAP connections per host
SERVER-65995 Reduce Evergreen cron frequency on older branches
SERVER-66087 Call curl_global_init before threading enabled
SERVER-66089 Initial sync should do transaction table read with a later afterClusterTime
SERVER-66111 Curl implementation of HTTPClient should respect default timeouts
SERVER-66176 [v4.4/v4.2] Minimize work under CollectionCatalog mutex
SERVER-66319 dbcheck_no_history_on_secondary.js disables dbCheck failpoint too early
SERVER-66433 Backport deadline waiting for overlapping range deletion to finish to pre-v5.1 versions
SERVER-66466 Remove TransportLayerASIOTest dependence on ThreadContext
SERVER-66559 Expand the internalQueryMaxAddToSetBytes param from 32 to 64 bits
SERVER-66799 Fix getParameterWithDetails.js failure on ephemeralForTest
SERVER-66955 Remove JSON.send usage in perf projects
SERVER-67017 Account for one more chunk in shard_existing_coll_chunk_count.js (v4.4)
SERVER-67212 Fix data-race in transport_layer_asio_test
WT-8622 Read in last_ckpt_base_write_gen at start of recovery
WT-9054 Correctly configure split stress options in format.sh

4.4.14 Changelog

Sharding

SERVER-55429 Abort migration earlier when receiver is not cleaning overlapping ranges

TTL

SERVER-52724 Increment TTL passes server status metric after the TTL work has finished

Internals

SERVER-44847 Clean up explicit 'comment' fields name attached to distinct and count commands in IDL files
SERVER-56003 ninja + icecream with changing compilers doesn't regen run-icecc.sh
SERVER-57000 Fix handling of correlated pipeline with facet
SERVER-57037 Improve precision of operator counters
SERVER-57676 Wait for a checkpoint before releasing the "hangOplogCapMaintainerThread" in oplog_rollover.js
SERVER-58310 ThreadPoolTaskExecutor is memory unsafe when task cancellation occurs around the same time an exhaust network response is received
SERVER-59435 Fix a double free inside DocumentSource::optimizeAt()
SERVER-60412 Host memory limit check does not honor cgroups v2
SERVER-61769 Attempting to run an aggregation with $out or $merge in a transaction on a sharded cluster leaves idle cursors open
SERVER-62229 Fix invariant when applying index build entries while recoverFromOplogAsStandalone=true
SERVER-62242 $indexOfArray does not work with duplicate values in array
SERVER-63315 Count command only accepts a string comment but should accept any BSON type in 4.4
SERVER-63497 Fix icecream debugging
SERVER-63974 Pin version of itsdangerous python dependency
SERVER-64079 $search commands fail on 4.4 binary with fCV 4.2
SERVER-64202 [4.4] initial_sync_aborts_two_phase_index_builds_hide_index.js can fail if the primary can't see a majority of the replica set
SERVER-64304 Using --recoverFromOplogAsStandalone can result in index builds crashing the server
SERVER-64410 Investigate whether we need to sort on searchScore when storedSource is true in $search
SERVER-64554 abortIndexBuild oplog entry has no effect when run with --recoverFromOplogAsStandalone
SERVER-64757 Improve error messages when scons fails to generate-ninja on Windows
SERVER-64772 Don't finish index build before stepdown in index_killop_after_stepdown.js
SERVER-64983 Release Client lock before rolling back WT transaction in TransactionParticipant::_resetTransactionState
SERVER-65032 Pin python package BaseResponse for ocsp suite
SERVER-65421 Fix package test failures on RHEL 6/7
SERVER-65422 Fix package test failures on Ubuntu 16.04
SERVER-65690 [v4.4] Skip backup_restore_abort_and_start_index_build.js for single-phase index build variants
SERVER-65718 Fix mypy error
WT-8074 Panic in reconciliation if inserting content into the history fails
WT-8149 Updating metadata salvage csuite test to handle salvaging table metadata without salvaging file metadata
WT-8198 Switch the bulk load cursor to a scratch buffer
WT-8270 Updating the time window clear obsolete stage of reconciliation to correctly consider global visibility.
WT-8362 Remove or rewrite HS entries of a key when OOO tombstone is written to datastore
WT-8422 Clear the on-disk cell time window if it is obsolete
WT-8450 Report stats in hs_cleanup_stress, don't validate them
WT-8598 Avoid checkpoint cleanup always on shutdown
WT-8649 WT_SESSION methods cannot release scratch buffers unless reset or closing
WT-8708 Fix timestamp usage error in test/checkpoint
WT-8743 Configure hs_cleanup configuration to stress the cache less
WT-8753 Add tombstone when rolling back in-memory, prepared, reconciled updates
WT-8799 Disable documentation update on mongodb-5.0
WT-8824 Disable code coverage measurement on mongodb-4.4
WT-8874 Disable compatibility tests on mongodb-5.0
WT-8879 Set the OOO flag when the selected tombstone is globally visible
WT-8894 Find the path to the mongod executable for many-collection-test
WT-8909 Disable cpp test search_near_01 on 4.4
WT-8924 Don't check against on disk time window if there is an insert list when checking for conflicts in row-store

4.4.13 Changelog

Sharding

SERVER-26755 Collection chunk loading is aborted entirely if fetching all the chunks takes more than 30 seconds
SERVER-62065 Upgrade path from 3.6 to 4.0 can leave chunk entries without history on the shards
SERVER-62171 Add logs to output of runConcurrentMoveChunk in sharding_statistics_server_status.js
SERVER-62906 Add a check in the createCollection/shardCollection path verifying the collection name length

Replication

SERVER-48059 concurrency_replication_for_backup_restore's WaitForReplication hook should ignore shutdown errors due to quiesce mode

Query

SERVER-40691 $nin:[[],...] queries are not indexed
SERVER-59754 Incorrect logging of queryHash/planCacheKey for operations that share the same $lookup shape
SERVER-62147 Exhaust query using the OP_QUERY protocol is broken when more than one getMore batch is required

Storage

SERVER-55483 Add a new startup parameter that skips verifying the table log settings

Internals

SERVER-48068 assert.soon() with hang analyzer enabled inside a try/finally can lead to an invariant failure in ProgramRegistry
SERVER-48328 Remove index key generation error whitelist
SERVER-48367 envp may be unreliable in global initializers
SERVER-49882 Log status in the catch block in JSThread::run()
SERVER-53239 fix race in shared future unit test
SERVER-57037 Improve precision of operator counters
SERVER-57312 Pin transitive Python dependencies and use the pinned file for installation in Evergreen
SERVER-57662 Wait for config.system.sessions collection to exist on the config server before refreshing logical session cache
SERVER-59375 Should collect summary statistics about transient faults
SERVER-59779 Call asCluster() before replSetFreeze in ReplSetTest
SERVER-60392 Fix timing in priority_takeover_two_nodes_equal_priority test.
SERVER-61315 Ldap health check executor should support aborted tasks
SERVER-61662 SCons configure checks should always run with verbosity
SERVER-61837 [v4.4] Ensure waiting for majority write concern after index creation in the destination shard of a migration on empty collections
SERVER-61977 Concurrent rollback and stepUp can cause a node to fetch from a timestamp before lastApplied once it has stepped down.
SERVER-62085 Use more bits for hashedMultikeyMetadataPaths in validation
SERVER-62336 Tolerate SnapshotTooOld errors in dbCheck testing
SERVER-62368 Range deleter must honor rangeDeleterBatchDelayMS
SERVER-62380 Wait for majority commit point to be advanced on each node before starting rollback test in rollback_set_fcv.js
SERVER-62465 After intensities are updated, the resulting health check should run with the new values of intensities set.
SERVER-62511 Race in dbcheck_no_history_on_secondary.js
SERVER-62513 RunDBCheckInBackground should retry on Interrupt errors
SERVER-62514 dbcheck_write_concern.js should prevent primary from stepping down
SERVER-62668 Synchronize access to ImpersonatedUserMetadata in OperationContext.
SERVER-62678 Migrate LDAP health checker to use permanent OpenLDAP & AD servers
SERVER-62706 dbcheck.js: handle replica sets with mixed debug/release members
SERVER-62824 Fix op_msg_fuzzer initialization order on v4.4
SERVER-62875 [v4.4] Archive data files for the multi_stmt_txn_jscore_passthrough_with_migration suite
SERVER-62928 Increase interval between LDAP checks in health observer tests
SERVER-62948 Ensure FTDC collectors don't have a read timestamp
SERVER-63057 /usr/bin/dig LDAP observer test relies upon is flaky
SERVER-63097 stepdown_race_with_transaction.js should use the "uses_transactions" tag.
SERVER-63141 Difference in $lookup/$redact/$let behaviour with pipeline optimization
SERVER-63197 Pin microbenchmarks genny version
SERVER-63203 Chunk splitter never splits if more than 8192 split points are found
SERVER-63234 Better logging to explain LDAP health check flakiness
SERVER-63422 Fix build failure for op_msg_fuzzer test on v4.4
SERVER-63505 Ensure arbiter recognizes primary node in rollback_views.js
WT-8004 Create a read order for the architecture guide
WT-8320 Select updates restored from history store irrespective of visibility
WT-8424 Use consistent toolchain in little-endian
WT-8477 Enforce the use of Pymongo 3.12.2 in our Evergreen tests
WT-8605 Disable the perf tests for non-develop branches in Evergreen

4.4.12 Changelog

Sharding

SERVER-61637 Review range deleter batching policy

Internals

SERVER-53239 fix race in shared future unit test
SERVER-58152 Create Feature flag for Remove Faulty Mongos From Cluster Topology
SERVER-58153 Enable Feature flag for Remove Faulty Mongos From Cluster Topology
SERVER-59356 Create dummy FaultManager singleton, FaultStatus enum and dummy unit test
SERVER-59357 Create dummy Fault class and dummy unit test for it
SERVER-59358 Create FaultFacet interface, mock implementation and unit test running mock that imitates a failure
SERVER-59360 Create HealthObserver interface, mock implementation and unit test invoking the periodic check with mocked failure
SERVER-59361 Implement periodic health check thread pool
SERVER-59362 Setup Fault Manager State Machine
SERVER-59364 Should move to the OK state after performing a successful round of health checks when in the StartupCheck state
SERVER-59365 Should not transition to OK state if initial health checks are not completed successfully
SERVER-59366 Progress monitor for periodic health check
SERVER-59367 Should create in-memory Fault instance when entering the TransientFault state
SERVER-59368 The system should properly handle a health checker being turned on/off
SERVER-59370 Should Transition to ActiveFault state when in the TransientFault state for kActiveFaultDuration
SERVER-59382 Enforce non-critical facets not entering ActiveFault state
SERVER-59386 Should provide the ability to perform periodic LDAP health checks
SERVER-59394 Setup integration test simulating ldap failure scenario
SERVER-59397 implement randomization for health check periods
SERVER-59496 Fault class should be a container of active fault facets
SERVER-59522 HealthCheckStatus should track fault status and lifetime
SERVER-59567 Periodic check should invoke observers, simulate HealthObserver Mock failure
SERVER-59608 Coverity analysis defect 120502: Parse warning
SERVER-59912 Initial no-op scaffolding of the Ldap health checker
SERVER-60079 Common health observer code to incorporate generic patterns from Ldap observer
SERVER-60084 Fix clang related compile failure in Enterprise Ldap
SERVER-60316 FaultManager should start with periodic checks disabled
SERVER-60587 Implement FaultFacet
SERVER-60944 Change interface for updateWithSuppliedFacet and update
SERVER-61220 Integration test for Progress monitor
SERVER-61368 FaultManager test suite should use real thread pool
SERVER-61438 Fix race in health_observer_test.cpp
SERVER-61529 Ldap tests should wait for connection reaper to be terminated
SERVER-61871 use tassert for state machine programmer errors
SERVER-61872 Fix thread pool starvation in FaultManager
SERVER-61873 LDAP health observer runtime params
SERVER-61914 add fault facet details to FaultImpl::toBSON
SERVER-61921 Link failure in noSSL mode in FaultManager
SERVER-61930 Individual health observers should return an error if a timeout period elapses when doing a single health check
SERVER-61956 fix data race when accessing the state machine's state
SERVER-62037 Fix replica set definition in the system perf yaml file for linux-1-node-15gbwtcache
SERVER-62084 Serializer for FaultFacetType is broken
SERVER-62096 /proc/<id>/smaps is not available
SERVER-62098 Guard healthCheckContexts with mutex in fault_manager.cpp
SERVER-62174 FaultManager to support dynamic configuration of health check intervals
SERVER-62188 Shutdown race with use after free in DeadlineFuture
SERVER-62197 Remove extra state mutex lock.
SERVER-62202 Log ID 5936504 should contain observer type as string
SERVER-62203 change the thread name "Health checks progress monitor" to "FaultManagerProgressMonitor"
SERVER-62204 do not schedule health check if observer is not enabled
SERVER-62226 Disable dbcheck_no_history_on_secondary.js on EFT
SERVER-62280 Premature transition to ok during initial checks in fault_state_machine_test.cpp
SERVER-62291 Find replacement for skipValidatingExitCode in the 4.4 backport of the health monitor
SERVER-62312 Enable feature flag in 4.4 backport and other housekeeping
SERVER-62371 Syntax error on rare code path in ldap_mongos_health_checking.js
SERVER-62373 LDAP health check integration test should assert stats
SERVER-62555 Ldap integration test should crash the server

4.4.11 Changelog

Sharding

SERVER-45149 replSetStepDown command in txn_two_phase_commit_failover.js should not timeout
SERVER-51329 Unexpected non-retryable error when shutting down a mongos server
SERVER-53335 Queries, updates, and deletes with non-"simple" collations may miss documents when using hashed sharding
SERVER-54623 Decrease number of jobs in causal consistency passthrough suites
SERVER-55382 Ignore error from retryable write being converted to transaction and that transaction failing in random_moveChunk_update_shard_key.js
SERVER-55392 Add a timestamp field to config.rangeDeletions
SERVER-55412 Mirrored reads should propagate the shard version field
SERVER-56226 [v4.4] Introduce 'permitMigrations' field on config.collections entry to prevent chunk migrations from committing
SERVER-56227 Add user-facing command to set allowMigrations to false for a sharded collection
SERVER-59890 Exclude migration_coordinator_shutdown_in_critical_section.js test from the config stepdown suite
SERVER-60552 Separate test for non-existing collection in metadata_manager_test
SERVER-60652 Backport the autoSplitVector logic to v4.4
SERVER-60682 TransactionCoordinator may block acquiring WiredTiger write ticket to persist its decision, prolonging transactions being in the prepared state
SERVER-60738 Update metadata manager tests for non-existing collections
SERVER-60804 Remove shard version checks from cursor_valid_after_shard_stepdown
SERVER-61461 update_shard_key_doc_moves_shards.js fails due to spurious refreshes from secondaries
SERVER-61628 Do not reschedule range deletion task when numDeleted < numDocsToRemovePerBatch
SERVER-61689 ActiveMigrationsRegistry::lock method doesn't properly handle its exceptions
SERVER-61816 cancel_coordinate_txn_commit_with_tickets_exhausted.js can hang forever due to race condition between transaction reaper and transaction coordinator

Replication

SERVER-54909 In replSetGetStatus, report last durable and last applied operation wall times for all members
SERVER-55376 Reconfig can roll back committed writes in PSA sets
SERVER-60946 Race condition in replsetprio1.js when initiating replset with nodes having different priorities

Query

SERVER-57588 Inconsistent query results when an array position is indexed whose value is an array
SERVER-60586 out_max_time_ms.js does not correctly enable "maxTimeNeverTimeOut" failpoint leading to spurious test failure

Aggregation

SERVER-59613 $range expression should error if it exceeds memory limit
SERVER-59924 Error executing aggregate with $out with "available" read concern on sharded clusters

Storage

SERVER-30846 Run dbCheck as background workload in FSM tests
SERVER-45953 Exempt oplog readers from acquiring read tickets
SERVER-48293 remove inactive index builds from config.system.indexBuilds

Operations

SERVER-28953 Capture df (disk full) statistics in FTDC

Internals

SERVER-34597 shardedcluster.py does not wait correctly on shards initialization
SERVER-46521 Extend mirrored reads generation tests
SERVER-46533 CmdUpdate should persist underlying BSON
SERVER-48673 Worker thread may exhaust command retries when using passConnectionCache=true in concurrency stepdown suites
SERVER-49028 initial_sync_aborts_two_phase_index_builds.js can fail if the primary can't see a majority of the replica set
SERVER-51087 Add testing utility for creating an empty sharded collection with the specified bounds
SERVER-55395 4.0.23 does not build with gcc 10
SERVER-56602 Track usage of match expressions in serverStatus
SERVER-56801 Update placeholder links for the reconfig check in PSA sets
SERVER-56887 setIndexCommitQuorum command returns {ok: 1} when run against a mongos on a non-existent index build
SERVER-56919 Add validation for memberIndex to reconfigToPSASet() shell helper
SERVER-57284 Wait for config commitment in reconfig_for_psa_set_shell.js
SERVER-57289 redact should not convert BSONArray into BSONObj
SERVER-57605 Expose Decimal128 equality comparison helper to shell
SERVER-58119 single_node_set_new_hostname.js needs to call replSetReconfig with an assert.soonNoExcept
SERVER-58385 recovery oplog application updates multikey info on wrong collection
SERVER-58406 Enable debug logging when the TestingProctor is enabled
SERVER-58412 Changing settings.chainingEnabled in replica set configuration should affect change in sync sources
SERVER-58636 Initial syncing node can miss final oplog entry when calculating stopTimestamp against a secondary sync source
SERVER-58888 $unionWith explain with mode "executionStats" does not account for stages which are pushed down
SERVER-59108 Resolve race with transaction operation not killed after step down
SERVER-59191 SPIKE: git.get_project fails to clone
SERVER-59226 Deadlock when stepping down with a profile session marked as uninterruptible
SERVER-59329 Make sure that withTemporaryOperationContext throw an error if the node is no longer a primary
SERVER-59409 Race between reconfig replication and stepup can cause RSM to be stuck in reporting ReplicaSetNoPrimary
SERVER-59459 mongodb fails to build with glibc-2.34
SERVER-59672 Fix stopping replication in step_down_during_draining3.js
SERVER-59858 Add observability for tasks scheduled on the reactor thread
SERVER-59879 Adjust maxTimeMS value to allow for slower execution in the parallel test suite
SERVER-60096 Add rollbackHangCommonPointBeforeReplCommitPoint failpoint to RVR
SERVER-60218 Improve $group stage
SERVER-60310 OCSP response validation should not consider statuses of irrelevant certificates
SERVER-60326 Windows Server fails to start when X509 certificate has empty subject name
SERVER-60456 LDAPBindOptions go out of scope during heavily delayed binds on Windows
SERVER-60511 getPinnedOplog return value should always be std::min compared with the pinned timestamp
SERVER-60520 Default 'enableSearchMeta' to true (v4.4)
SERVER-60550 migration_util function may miss some response errors when submitting remote commands through sendToRecipient()
SERVER-60582 [v4.4] initiate_emrc_false.js needs to wait for the initial checkpoint
SERVER-60588 $multiply incorrectly throws an error in some cases in the classic engine
SERVER-60606 Race condition during initial sync when index builds start in data cloning phase
SERVER-60670 use a separate branch instead of a specific commit for TPCC
SERVER-60671 Remove dagger
SERVER-60685 TransactionCoordinator may interrupt locally executing update with non-Interruption error category, leading to server crash
SERVER-60756 Add additional logging for failed updates in multi_statement_transaction_atomicity_isolation.js
SERVER-60788 merge_causes_infinite_loop.js attempts to expose a problem that no longer exists
SERVER-60809 Add ability to not idLookup after $search
SERVER-60877 Correct inadvertent copy of MutableOplogEntry on replLogUpdate
SERVER-60928 [4.4] Latest 4.2 mongos cannot startup with a sharded collection having compound hashed shard key
SERVER-60948 Insert document in new collection in migration_id_index.js to await successful index build on secondary
SERVER-60971 Remove calls to BF suggestion service
SERVER-61164 Accept error code 48 (Inappropriate authentication) as a valid response for LDAP liveness check
SERVER-61427 Unique index builds can cause a loss of availability during commit due to checking many false duplicates
SERVER-61466 Port the RSM { electionId, setVersion } ordering to scanning RSM
SERVER-61479 Increase the number of retries to connect to a replica set following a stepdown
SERVER-61550 Modify auto_workload_path in perf.yml to be relative to cwd
SERVER-61681 Wait for replSetGetStatus to update in replSetGetStatus_member_wall_times.js
SERVER-61690 Adjust stored fields protocol for atlas search
SERVER-61738 Revive dbCheck.js and make it deterministic
SERVER-61743 The -fno-builtin-memcmp flag shouldn't be applied except on x86_64 platforms
SERVER-61748 dbCheck should not hold a strong database lock during batches
SERVER-61754 dbCheck should not hold a strong collection lock during batches
SERVER-61757 Add a dbCheck command option to customize the batch size
SERVER-61791 pin pymongo
SERVER-61846 Prevent redact from throwing BSONObjectTooLarge
SERVER-61852 dbCheck should tryLock the collection with backoff
SERVER-61862 Expose $_internalReadAtClusterTime command in v4.4
SERVER-61877 Remove catalog consistency verification from dbCheck
SERVER-61955 Expose dbCheck as a generally available command
SERVER-62022 Reduce dbCheck info logging in production, log start and stop
SERVER-62023 Improve dbCheck observability
SERVER-62041 Add a maximum batch execution time to dbCheck
SERVER-62164 Remove several obsoleted build variants across all stable branches
SERVER-62210 Fix dbCheck progress meter handling of dropped and recreated collections
SERVER-62212 Support writeConcern for dbCheck
WT-5009 Migrate remaining wiredtiger-perf-lsm tests to Evergreen
WT-5743 Rewrite cells when the transaction ids are cleared for VLCS
WT-5939 Fix naming conflict resulting in "cannot remove directory" error in test_config06 (OSX only)
WT-6077 Add new stats to track compact progress
WT-7250 Fix the test to perform explicit eviction instead of relying on low cache size
WT-7494 Add Python test to trigger update restore eviction during recovery
WT-7885 Ensure WiredTiger testing uses tcmalloc where possible
WT-8026 Run PPC/zSeries/macOS mainline builds less frequently in Evergreen
WT-8067 Fix the code that ensures to insert the newest history store value as full update
WT-8116 Fix issues related to inheritance in the cpp testing framework
WT-8147 Detect invalid syntax in cppsuite configs
WT-8168 Fix unused variables in search near cpp tests
WT-8199 Make s_all accept Python PEP8 compliant line breaks
WT-8203 Fix the layering violation in accessing the page
WT-8204 Fix possible race condition in "wt7989_compact_checkpoint" CSuite test
WT-8214 Only publish the docs from the WiredTiger develop Evergreen project
WT-8225 Fix data race in zstd get context
WT-8226 Fix largest_key failed to consider prepared update
WT-8395 Inconsistent data after upgrade from 4.4.3 and 4.4.4 to 4.4.8+ and 5.0.2+
WT-8534 Allow retrieving checkpoint snapshot for backup restore recovery
WT-8576 Enable logging in test checkpoint

4.4.10 Changelog

Security

SERVER-50050 Build with --ssl=off fails

Sharding

SERVER-53332 Change ShardRegistry::_connStringLookup to store connection strings as std::strings
SERVER-54064 Sessions on arbiters accumulate and cannot be cleared out
SERVER-55975 The core/find_and_modify.js test is not suitable to run in the stepdown suites
SERVER-59160 Disable balancer in test_stacked_migration_cleanup.js
SERVER-59769 Balancer conflicts with chunk migration tests
SERVER-59916 T{1, 2}Starts{First, Second}AndWins In WriteConflictHelpers Does Not Synchronize Committing Of Failed Transaction
SERVER-60142 Shard can migrate on top of orphans after filtering metadata was cleared
SERVER-60419 Make CleanUpForMigrateIn deterministic

Replication

SERVER-50241 PeriodicShardedIndexConsistencyChecker should skip dropped collections
SERVER-55376 Reconfig can roll back committed writes in PSA sets
SERVER-58988 Avoid sync source selection cycle during primary catchup.
SERVER-60153 More INFO level logs during election

Query

SERVER-51806 bulk key insertion phase of index build holds IX lock without yielding
SERVER-54791 Excessive file descriptor usage during index build with external sort
SERVER-57321 $mod match expression incorrectly handles NaN, Infinity and large values

Aggregation

SERVER-49214 Add $toHashedIndexKey expression

Operations

SERVER-53242 Always log collmod command

Internals

SERVER-34597 shardedcluster.py does not wait correctly on shards initialization
SERVER-46147 Update repair to fix multikey errors without performing an index rebuild
SERVER-49340 Add repair mode to validate for startup --repair
SERVER-52850 Remove assertion from initial_sync_nodes_maintain_and_gossip_commit_point.js
SERVER-53448 Make ftdc_mirrored_reads.js resilient to slow machines
SERVER-54825 Use 'toArray()' in addition to array access after 'find()' in rslib.js
SERVER-55904 Consolidate getFirstOplogEntry and getLeastRecentOp helpers
SERVER-56326 Add a round() method to the Decimal128 class
SERVER-56416 mongod --version returns with extraneous log line on M1 laptops
SERVER-56919 Add validation for memberIndex to reconfigToPSASet() shell helper
SERVER-57284 Wait for config commitment in reconfig_for_psa_set_shell.js
SERVER-57605 Expose Decimal128 equality comparison helper to shell
SERVER-57938 Skip polygon validation for stored GeoJSON when query has $geoIntersect and a 2dsphere index
SERVER-58047 $toHashedIndexKey expression doesn't add any dependencies
SERVER-58104 config.system.sessions collection can end up with invalid chunks if it is dropped and re-sharded with a shard key other than _id
SERVER-58122 Replace searching logs for invariant failure with failpoint usage in resync_majority_member.js
SERVER-58139 Avoid leaking state from NetworkInterfaceTest::CancelLocally
SERVER-58148 mirrored_reads.js assertion does not consider mirrored read failure
SERVER-58183 _applyPrepareTransaction does not ensure prepareConflictBehavior is kIgnoreConflictAcceptWrites on retry attempts
SERVER-58203 improve $unionWith stage
SERVER-58583 Query analysis for mongocryptd does not handle expressive projections in find
SERVER-58777 Inserts and updates disagree on whether an empty subdocument is a level of nesting
SERVER-58780 [v4.4] Ensure that _shouldSetStableTimestamp gets restored to true if replSetInitiate fails
SERVER-59010 Fix SSL off build, OCSPManager shouldn't be used when ssl = off
SERVER-59074 Do not acquire storage tickets just to set/wait on oplog visibility
SERVER-59120 Create unit tests for commitChunksMerge
SERVER-59143 hard fail if "--ninja" tool option is used with ninja module in place
SERVER-59190 IndexAccessMethod can be destructed during index build bulk load yield
SERVER-59294 Check action type for oidReset
SERVER-59299 Improve $match stage
SERVER-59425 Ninja fails to install archive targets locally
SERVER-59456 Start the LDAPReaper threadpool
SERVER-59476 validate_commit_message does not allow wiredtiger imports to be reverted
SERVER-59651 replsettest runCommandWithRetry should handle slow configs
SERVER-59725 Remove push task from extra RHEL 6.2 variants
SERVER-59804 Using a separate branch for YCSB in system_perf.yml
SERVER-59866 Stop fCV from waiting for majority when currentCommittedSnapshot is dropped
SERVER-59867 Split horizon mappings in ReplSetConfig/MemberConfig should be serialized deterministically
SERVER-59876 Large delays in returning from libcrypto.so while establishing egress connections
SERVER-60025 queue document crashes the server due to producing invalid runtime object
SERVER-60062 Fix duplicate uuid and server description deep copy found in topology description clone
SERVER-60085 Cap number of fallback test suites at number of tests in suite
SERVER-60290 Update Windows external auth test distro
SERVER-60299 Backport PCRE bugfix for Bugzilla #2613
SERVER-60406 $searchMeta fails on unsharded collection in sharded cluster when there are no search results
WT-5270 Create wtperf script for evergreen
WT-6193 Re-enable VLCS testing in format-test
WT-6669 Enable VLCS coverage and checkpoint tests in evergreen
WT-6900 Write "schema" subpage for Architecture Guide
WT-6903 Write "dhandle/btree" subpage for Architecture Guide
WT-6907 Write "snapshots" subpage for Architecture Guide
WT-6909 Eviction architecture guide
WT-6913 file system and os interface architecture guide
WT-7169 Commit ts should not be lesser than the last durable ts in test_timestamp22.py
WT-7294 Re-enable VLCS evergreen endianness tests
WT-7392 Added evicted flag to dhandle for use by session sweep
WT-7601 Fix typo in operation tracking documentation
WT-7695 Dump entire tree when key out-of-order found in __cursor_key_order_check_row
WT-7745 Add macro to identify uris for btree objects
WT-7757 Skip obsolete leaf pages without having to read them
WT-7844 Add tiered_abort stress test for tiered storage.
WT-7902 Retry the alter command after a system wide checkpoint
WT-7914 Update the documentation only when required
WT-7942 Release timestamp lock in test/format when all_durable timestamp is not found
WT-7949 Change local store cache and bucket directories to be relative to WT_HOME
WT-7957 Tiered storage should look in local system for objects
WT-7959 Skipped_pages is less than expected_pages_skipped in test_cursor17
WT-7980 Create interface to "log:" cursor which switches log files before returning them
WT-7987 Create Unit Test to check compact does not rewrite overflow items
WT-7989 Compact quits when running at the same time as a system checkpoint
WT-7992 Provide API to return the last key in a table regardless of visibility
WT-7993 If gathering handles and not in aggressive eviction mode, have eviction sleep to let checkpoint grab a contentious spinlock.
WT-8001 Fix Inconsistent API behaviour when setting global oldest and stable timestamps
WT-8007 Update script to correctly generate new test for the CPP test suite framework
WT-8011 Add format support for randomly choosing RS or VLCS
WT-8017 Re-enable VLCS format stress testing in evergreen.
WT-8019 VLCS snapshot-isolation search mismatch
WT-8022 Verify WT_CURSOR.modify return values in format test program
WT-8023 Use global transaction information to assess if a session has active transaction
WT-8024 Add link text to cross-references in Arch Guide
WT-8034 Use the PR branch when docs are compiled in PR testing
WT-8035 Handle prefix enabled lexicographical comparisons for string key formats
WT-8036 Added connection panic flag in two assert statements in wt_evict_thread_run and _wt_evict_thread_stop.
WT-8039 Add a new flag for API check instead of clearing prepared flag which may incorrectly force a roll back
WT-8041 Rollback to stable unpacks values repeatedly
WT-8042 Create an evergreen job to run test/checkpoint variation
WT-8043 Tidy the "ripcip" argument into the visibility code
WT-8044 Prefix enabled search near only returns matching keys
WT-8048 Remove split_8 timing stress configuration
WT-8055 Fix issue when compact quits when running at the same time as a checkpoint
WT-8057 Add a test to verify that changing compact is not resulting in data loss
WT-8059 Add a check in salvage when no overflow items are found
WT-8068 Improve __rollback_row_modify control flow
WT-8069 Coverity analysis defect 120706: Redundant test
WT-8070 Remove discrepancy between prefix_key and prefix_search
WT-8075 Coverity analysis defect 120712: 'Constant' variable guards dead code
WT-8077 Mark the page dirty once the prepared updates are resolved
WT-8078 Implement tiered storage local retention caching
WT-8079 Add breakpoint to verify error macros, clean up API processing
WT-8081 Fix tiered hook functions to provide default for config string
WT-8086 Create cpp test for prefix search near entries
WT-8092 Prefix early exit when keys are present in the insert list
WT-8094 Fix use after free in csv extractor
WT-8101 Enable diagnostic mode for the CPP tests in evergreen
WT-8103 Skip a dhandle if it isn't a btree
WT-8104 Fix memory leaks noted by ASAN
WT-8108 Use temporary files and rename in local store
WT-8112 Skip null check, per coverity
WT-8113 Remove dead code, per coverity
WT-8115 Define macros only when necessary in cpp files
WT-8119 Add targeted compact testing to the existing testing framework
WT-8121 Create a long running stress test which inserts a large amount of data over a long period
WT-8125 Update hs_cleanup cppsuite test to use the new thread_context logic
WT-8126 Mark btree as dirty only if not newly created when instantiating a deleted row-store leaf page
WT-8146 Stop the tracking component when a CPP test ends
WT-8148 Fix comment typo in util_verify.c
WT-8161 Reduce verbosity of CMake Evergreen smoke
WT-8162 Refactor uses of SMOKE arg in 'define_c_test' helper
WT-8164 Disable rollback_to_stable10 python test on Windows
WT-8171 Implement a C style test in the CPP testing framework
WT-8193 Wrong corner case in VLCS rollback-to-stable

4.4.9 Changelog

Security

SERVER-57716 Partial certificate chain in PEM causes validation failure in OCSP

Replication

SERVER-34938 Secondary slowdown or hang due to content pinned in cache by single oplog batch
SERVER-36263 Bypassing operation validation in applyOps should require special privilege
SERVER-44316 Log message in InitialSyncer for setting begin applying timestamp is incorrect
SERVER-59212 Make sure node stepped down before waiting for catchup takeover in catchup_takeover_with_higher_config.js
SERVER-59478 Move serverStatus command before taking RSTL in catchup_takeover_with_higher_config.js

Query

SERVER-57178 add regression test for multikey compound index

Storage

SERVER-56877 insert operations may fail to set index to multikey after aborted multikey catalog update

Build and Packaging

WT-7830 Migrate the python setup scripts to use cmake

Internals

SERVER-49435 uassert in NetworkInterfaceTL::setTimer can cause server to crash if connection future not immediately ready
SERVER-53069 Disable death tests on address and memory sanitizer variants
SERVER-53479 Wait for mirrored operations in mirror_reads.js
SERVER-53849 Move away from getLog in timestamped_reads_wait_for_prepare_oplog_visibility.js
SERVER-55589 replSetMaintenance command does not take the RSTL
SERVER-56580 Promote build-tools=next to stable
SERVER-57262 Allow nodes to vote for candidates with higher config
SERVER-57268 add multikey query to validate_multikey_restart.js
SERVER-57360 Log additional debug info for the "invariant (_requests.empty());" in ~LockerImpl
SERVER-57630 Enable SSL_OP_NO_RENEGOTIATION on Ubuntu 18.04 when running against OpenSSL 1.1.1
SERVER-57752 Test terminating mongod during a clean shutdown checkpoint
SERVER-57893 Make rsm_horizon_change.js resilient to network failures
SERVER-58051 Mongod.exe does not release file handles on rotated logs on windows 10
SERVER-58169 Log timestamps info on hitting invariants around stable timestamp calculation
SERVER-58184 Checkpoint thread causes assertions when raced with recovering prepared transactions on startup
SERVER-58280 initial sync hangs on hiding dropped index when index builds are active
SERVER-58402 Increase timeout of shutdown command in shutdown_primary.js
SERVER-58581 Add SEARCH_META variable that populates from mongot
SERVER-58582 Create $documents stage and implement collectionless unionWith
SERVER-58588 Implement $searchMeta stage
SERVER-58594 ReplicationCoordinatorImpl::handleHeartbeatResponse_forTest doesn't use _mutex when reading _rsConfig
SERVER-58676 Ban pipelines that set SEARCH_META variable in sharded collections
SERVER-58813 Robustify jstests/multiversion/hashed_index_bad_keys_cleanup.js
SERVER-58886 Allow 'vars' result to be returned from a sharded search query but fail on SEARCH_META access
SERVER-59135 Make mongocryptd targets in MSIs depend on libsasl2
SERVER-59188 Coverity analysis defect 120391: Uninitialized scalar field
SERVER-59197 Delete fam image entries when the corresponding session documents are deleted
SERVER-59242 update to snmp 5.9.1
SERVER-59262 Remove burn_in_tests tasks from storeFindAndModifyImagesInSideCollection build variants
SERVER-59414 Retry curator setup in powercycle on older branches
SERVER-59469 Add missing space in burn_in_tags list of variants
SERVER-59573 Add setParameter which can be used to restore inactive cursor timeout in sessions
WT-6755 Documentation: populate developer glossary
WT-6902 Metadata subpage for Architecture Guide
WT-6910 Write "history store" subpage for Architecture Guide
WT-6911 Write "block manager" subpage for Architecture Guide
WT-6914 Write "database files" subpage for Architecture Guide
WT-6915 Write "log files" subpage for Architecture Guide
WT-7006 Write Connection subpage for Architecture Guide
WT-7007 Backup architecture guide page
WT-7198 Fix test_backup15 failure with backup mismatch
WT-7352 Fix test_hs01 conflict between concurrent operations in cursor modify
WT-7363 Add support for dumping history store output in hex format
WT-7521 Remove excess ckplist invalidations
WT-7592 Remove log_flush("sync=background") support
WT-7599 Update the CONFIG file based on the release that is about to run for compatibility tests
WT-7663 Change local store extension to allow only readonly FS operations
WT-7673 Investigate and fix manydbs test failure on Windows
WT-7703 Fix timeout in test_checkpoint_snapshot04
WT-7718 Rename 'build_cmake'
WT-7732 Add a timeout configuration for flush_tier
WT-7758 Force evict a page when the update chain is too long
WT-7787 Don't read pages for checkpoint cleanup when the cache is in aggressive mode
WT-7789 Change tiered python tests to fail without extension library
WT-7817 Make tiered storage address cookies backward compatible
WT-7838 Ability for ordered timestamp assertion to do more than a log message
WT-7842 Remove explicit ulimit -n call in many-collection-test
WT-7860 Improve code coverage reporting
WT-7864 Add support to run.py for running lists/ranges of scenarios in a test
WT-7865 Disable timeout assert while waiting for eviction to quiesce prior to RTS and test
WT-7866 Update cache_hs_insert limits in cppsuite-hs-cleanup-stress
WT-7870 Fix measurement of cyclomatic code complexity
WT-7871 Remove comment that is no longer true
WT-7874 Remove two other stale comments
WT-7876 Update rollback to stable test to use correct boolean values and update statistic checking logic
WT-7880 Fix history store record issue when the update following the prepared update is in history store
WT-7882 Fix discrepancy for wiredtiger.in on mongodb-4.4 branch
WT-7883 Remove incorrect wt_free statement
WT-7889 Find/replace existing uses of WT with WiredTiger in reference guide
WT-7890 Fix CMake syntax error in config_lib
WT-7891 Remove doc typos
WT-7893 Remove ignored message from wiredtiger_open in test_encrypt08
WT-7895 Fix arch-data-file.dox documentation build failure
WT-7897 Enable verbose logging for test_backup15 to aid debugging
WT-7900 Fix insertion of new records in test format for column-store
WT-7901 test suite cleanup
WT-7905 Fix incorrect builtin behaviour for builds in CMake
WT-7907 Add dependencies to swig module definition in CMake build
WT-7908 Make variable-length column store work again with the static tests
WT-7909 Create a new method to check for running user transactions before starting rollback-to-stable operation
WT-7918 Support setting a prepare timestamp at current read timestamp
WT-7928 VLCS checkpoint and additional test suite improvements
WT-7931 Evicting modifies using the evict cursor in test_multiple_older_readers_with_multiple_mixed_mode() to ensure that eviction happens.
WT-7934 Upload perf results from many-collection test to Altas
WT-7935 Add arm64 implementation of rdtsc equivalent instruction
WT-7936 Update the format.sh script to run recovery tests
WT-7937 Fix s_docs to use sh, not bash syntax
WT-7938 Fix rollback-to-stable memory leak on error
WT-7940 Update mongod path for many-coll test
WT-7941 Add an Evergreen task to test abort/recovery using test/format
WT-7943 Do not assert timestamps when rolling back a prepared transactions
WT-7945 Move rollback handling to the operation layer in the cppsuite.
WT-7947 Allow CMake to take in a specific Python version
WT-7952 Minor docs build fixes
WT-7953 Teach s_string to not look inside getopt option lists.
WT-7955 Copy format.sh and CONFIG.stress to the test/format build directory with CMake
WT-7956 RTS to skip deleted or stable RLE cells
WT-7961 Sometimes lag oldest timestamp in timestamp_abort.
WT-7964 Fix rollback to stable incorrectly not rolling back updates at snap_max
WT-7965 Update connection base write generation number at the end of recovery checkpoint
WT-7968 In timestamp_abort skip setting timestamps when all_durable moves backwards
WT-7970 Set the stable timestamp before starting the checkpointer and clock threads
WT-7974 More column-store fixes and tests
WT-7984 Fix a bug that could cause a checkpoint to omit a page of data
WT-7994 Add docs compile task to PR testing
WT-7995 Fix the global visibility that it cannot go beyond checkpoint visibility
WT-7996 More column-store C testing
WT-7998 Minor fixes on Cache subpage of Architecture Guide
WT-7999 Fix the assert to handle an update in the middle with max stop timestamp
WT-8005 Fix a prepare commit bug that could leave the history store entry unresolved
WT-8006 sync/checkpoint cleanup code isn't appropriate for VLCS

4.4.8 Changelog

Security

SERVER-57727 Race conditions in x509_invalid.js

Sharding

SERVER-6036 Disable cursor timeout for cursors that belong to a session
SERVER-52906 moveChunk after failed migration that rolled back cloning indexes can hang indefinitely due to missing shard key index
SERVER-57850 Increase timeout when waiting for migration on authCommands.js

Replication

SERVER-37904 Allow a node to override the cluster chaining (enabled/disabled) setting
SERVER-58164 When group insert fails, the error type is not printed in logs.
SERVER-58258 Wait for initial sync to clear state before asserting 'replSetGetStatus' reply has no 'initialSync' field

Query

SERVER-58127 Fix benchRun() memory leak for parsing benchRun() args under exception

Storage

SERVER-49714 Oplog visibility thread may read from unowned memory when multiple oplog collections present
SERVER-50287 drop_index.js fails when run in passthrough suite with stepdown

Build and Packaging

SERVER-54729 MongoDB Enterprise Debian/Ubuntu packages should depend on libsasl2-modules and libsasl2-modules-gssapi-mit

Internals

SERVER-56424 improve index build invariant message for system error ENOSPC "28: No space left on device"
SERVER-56620 Nodes should explicitly clear arbiter durableOpTimeAndWalltime
SERVER-57642 Invariant Failure on src/mongo/db/query/plan_yield_policy.cpp 75 | Aborting
SERVER-57650 Make MigrationChunkClonerSource interruptible when waiting response to recipient commands
SERVER-57798 Direct user to MongoDB Compass download page when failing to install MongoDB Compass due to a connection issue using ./install_compass
SERVER-57983 Integer overflow for $range in Classic Engine
SERVER-58187 Improve Connection Reaper and MongoLDAP performance
SERVER-58191 [Migrate Protocol] Allow delete_during_migrate.js to tolerate chunk migration failures due to timeout in catchup phase in slow variants.
SERVER-58283 Add a new versioning file to set MONGO_VERSION and MONGO_GIT_HASH
SERVER-58936 Unique index constraints may not be enforced
WT-6280 Fail eviction if out of order handling races with checkpoint
WT-6729 Quiesce eviction prior running rollback to stable's active transaction check
WT-6782 test_prepare_hs02 WT_ROLLBACK failure: conflict between concurrent operations
WT-7231 Add CMake build and tests into Evergreen
WT-7279 Allow multiple terminate calls for storage source extension
WT-7343 Write a script that executes many-collection-test.py
WT-7383 Add framework for new hs_cleanup test and refactor workload generator and database operation
WT-7473 Resolve "TODO: tiered" comments in code
WT-7507 Update salvage for a history store and timestamp world
WT-7520 Add start and stop values to automatic flag generation code
WT-7524 Refactor functions to obtain checkpoint list; Clear delete on skipping checkpoints
WT-7539 Add a configuration option that allows the user to specify debug modes.
WT-7543 Pass in the correct test name when constructing the default config path
WT-7553 Loosen the restrictions around evicting fast-truncate pages to avoid cache-stuck failures
WT-7556 Fix test_rollback_to_stable10 failure cache_hs_ondisk is 0
WT-7583 Coverity analysis defect 114074: Logically dead code (rework)
WT-7585 Fix cyclomatic-complexity test failure
WT-7589 Fix reopening connection after a flush_tier in tiered tests
WT-7603 Sort statistics to fix JSON output
WT-7605 Drop support for million-collection-test
WT-7609 Report on time taken to start and shutdown the database in many-coll-test
WT-7616 Create a pass or fail test based on many collection workgen workload
WT-7619 Add a new optimization to skip pages in cursor traversal when all entries on the page are deleted
WT-7626 We only ensure update restore eviction happened in test debug mode09
WT-7628 Return an error message when supplied invalid command line args in the test framework
WT-7629 Run clang format on .cxx files in the codebase.
WT-7632 Fix invalid argument in test_rollback_to_stable14
WT-7639 Alter test_tiered02.py to collect more data before asserting for missing file
WT-7640 Fix test_backup02 failure where checkpoint tables differ due to checkpoint cursor not supported
WT-7644 Implement python hooks for tiered storage
WT-7646 Remove unneeded uses of WT_WITH_BUCKET_STORAGE macro
WT-7647 Change Zstandard wrapper to include context management
WT-7649 Skip timestamp assert during recovery
WT-7659 Disallow rename on tiered table
WT-7660 Rename poc_test to base_test in the cpp test framework and add insert_operation logic
WT-7667 Fix workgen JSON output
WT-7668 Overload the update method for the hs_cleanup test
WT-7670 Modify test tag format and tag additional python tests
WT-7672 Remove make-check-test from Windows CMake Evergreen build variant
WT-7674 reduce rollback-to-stable work for fast-truncate pages
WT-7675 Query last ckpt timestamp changes without taking checkpoint
WT-7676 Reformat wtperf backup to only read in files instead of wt_copy_and_sync
WT-7679 Create an evergreen test for many-dhandle-stress
WT-7680 refactor rollback-to-stable to support operating on individual files
WT-7683 Add python test hook to call flush_tier() during connection.close()
WT-7685 Fix invalid values and units for latencies in workgen
WT-7686 Fix config call, allowing "sync" option to work for flush_tier
WT-7687 Stop tiered manager thread before internal thread
WT-7689 Fix double free in __curhs_insert
WT-7690 Fix coverity error when enum is compared against 0 (incr_backup:table_changes)
WT-7692 fix make check test failure on osx10 14 cmake
WT-7696 Fix coverity error - Unused variable in _rollback_to_stable_btree_apply_all
WT-7698 Decrease max_latency value in many dhandles scenario for workgen
WT-7705 Add an assert to ensure that there are no updates on the new disk image in update restore
WT-7707 Simplify insert splits to use the splitting WT_REFs key
WT-7708 Add an assert to ensure the durable timestamp is larger than stable timestamp at the end of prepared commit
WT-7715 Fix uninitialized bool in txn_ckpt.c
WT-7717 Change macros in local_store.c to use WT namespace
WT-7719 Change default value of ENABLE_STRICT to "OFF" (CMake Usability Improvements)
WT-7720 Update POSIX CMAKE doxygen documentation (CMake Usability Improvements)
WT-7723 Delete the updates in the history store if they are rolled back or is the first stable update on the update chain
WT-7724 Fix race when running concurrent checkpoint and flush_tier
WT-7725 Add missing brackets around parameter in macro definition
WT-7726 Separating out the validation portion from the database model
WT-7727 Fix null pointer passed to memcpy() during 'format' test.
WT-7729 Fix to write out correct tiered information on checkpoint
WT-7730 Shifting the oldest and stable timestamps to match the commit timestamp format
WT-7739 Switch back to using MacOS 10.14 for Evergreen compile task
WT-7741 Fix misaligned address in crc32-x86.c
WT-7742 Fix misaligned address in wt3184_dup_index_collator/main.c
WT-7743 Fix integer overflow within wt2999_join_extractor csuite test
WT-7744 Fix null pointer within wt3338_partial_update csuite
WT-7746 Improve directory syncing with CMake helper 'create_test_executable'
WT-7748 Fix CMake library probes for libraries not on the default linker path
WT-7749 Assorted fixes for (and from) building and testing on NetBSD
WT-7751 Add an assert to ensure we never select an update that has been written to the history store for data store
WT-7752 Update packing code according to documentation
WT-7754 Fix race when updating block manager file handle
WT-7755 YSCB: Add a native implementation of YCSB to WTPERF.
WT-7756 RTS to clear the HS flag of an update following tombstone
WT-7761 Improve debug_print to include timestamp, thread_id and reorder args in cppsuite.
WT-7762 Create stressful configs for the two tests add them to evergreen.
WT-7763 Coverity issues found in the stress testing framework
WT-7765 Fix signed integer overflow in intpack-test3
WT-7766 Fix null pointer passed to memset in test_wt3338_partial_update
WT-7767 Code cleanup for curhs_remove and __txn_fixup_prepared_update
WT-7770 Fix issue linking TCMalloc in CMake
WT-7776 Add a hard limit on the number of modify updates before we instantiate a complete update
WT-7778 Fix null dereferencing, and return of incorrect allocation size
WT-7780 Guarantee log message sequencing in the test framework.
WT-7781 Avoid skipping python tests for 3rd party ext libraries in CMake builds
WT-7782 Separate implementation from headers in cppsuite test framework
WT-7784 Enable RTS to use checkpoint snapshot on timestamp tables
WT-7795 Fix CppSuite failure "expected ) before PRIxMAX"
WT-7796 Scan the tracking table and delete parts of it that are obsolete.
WT-7797 Disable postrun stats in CppSuite testing
WT-7799 Do not report failure of wiredtiger_open in python tests to output
WT-7802 Remove data store same transaction update squash logic
WT-7804 Fix test_hs24 committing mixed mode update from the wrong value
WT-7807 Remove unused arg in backup_config
WT-7811 Fix test_hs24 not commiting from 0 timestamp
WT-7813 Stop inserting to history store if we see a prepared update
WT-7815 Properly initialize prev_upd_ts for ordered timestamp assertion
WT-7825 Fix test_hs24 key order
WT-7831 Clear transaction ids from previous run when repack the cell
WT-7832 Add an encryptor extension that uses the libsodium cryptography library.
WT-7836 Fixing a number of small issues in the cppsuite test framework
WT-7837 Clear updates structure in wt_hs_insert_updates to avoid firing assert
WT-7841 add "only unencrypted" checksum configuration, switch checksum default to "on"
WT-7843 Add missing macros to define PRIxMAX
WT-7846 Disable test_tiered08
WT-7851 Fix illegal checksum configuration in compatibility-test-for-newer-releases
WT-7852 Don't release eviction server lock when evicting pages
WT-7856 Enable flush test with open cursor in test_tiered04
WT-7882 Fix discrepancy for wiredtiger.in on mongodb-4.4 branch

4.4.7 Changelog

Security

SERVER-55797 Fix race issue in x509_invalid.js
SERVER-56240 Turn on checkpointing for the keystore Data Store

Sharding

SERVER-47534 Unblacklist mongos_dataSize.js from sharding_last_stable_mongos_and_mixed_shards suite
SERVER-47699 Change yield type used by range deleter from YIELD_MANUAL to YIELD_AUTO
SERVER-48648 Return updated ShardVersion in _configsvrCommitChunkMerge to avoid blind metadata refresh
SERVER-48653 Return updated ShardVersion in _configsvrCommitChunkSplit to avoid blind metadata refresh
SERVER-50209 ShardRegistry internal reload is not interruptible
SERVER-51170 Ensure database refreshes are performed after ShardingState initialization
SERVER-54675 Round collection data size to zero if found to be negative on startup or coming out of replication rollback
SERVER-56261 Invariant failure at hasTransientTransactionOrRetryableWriteError
SERVER-56654 Do not use the collection distributed lock for chunk splits
SERVER-56779 Do not use the collection distributed lock for chunk merges
SERVER-56786 There are three routing info refreshes and two chunk scans on the mergeChunks path
SERVER-57009 Additional debugging information in case of crash during fCV change
SERVER-57055 delete_during_migrate.js is consistently failing in test suites with Code Coverage enabled
SERVER-57102 Fixing invariants on ShardServerCatalogCacheLoader to consider different terms
SERVER-57475 ShardingTest.stop must join top-level chunk migrations
SERVER-58109 The new '_configsvrMergeChunks' path is more expensive than the old one

Replication

SERVER-50327 Add namespace param to failpoint in new_transaction_waits_for_previous_txn_table_updates.js
SERVER-53447 Blacklist insert1.js with from transaction passthrough tests with failures
SERVER-55070 Avoid parsing unnecessary fields from BSON oplog entries
SERVER-55120 Fix docs link for fatal error message on startup when there's an invalid config
SERVER-55465 Fix Invariant upon failed request for a vote from the current primary in the election dry-run of catchup takeover
SERVER-55573 Deadlock between stepdown and chunk migration
SERVER-55751 Increase election timeout in initial_sync_nodes_contribute_to_liveness_majority.js
SERVER-55766 Introduce an optimized "for restore" startup replication recovery mechanism
SERVER-56054 Change minThreads value for replication writer thread pool to 0
SERVER-56415 AwaitNodesAgreeOnPrimary doesn't work when given non-default set of nodes
SERVER-56937 upgradeSet() in multi_rs.js may lose authentication state while upgrading primary

Query

SERVER-53433 Map reduce is versioned on direct connection to shards
SERVER-56144 Switch all query related microbenchmarks to use commands instead of legacy wire protocol
SERVER-56465 Invariant failure in Variables::getRuntimeConstants() const

Write Operations

SERVER-38909 Permit empty update modifiers, treating as a no-op rather than an error
SERVER-56518 findAndModify deletes unconditionally write preImage no-op oplog entries, leading to crash during chunk migration

Aggregation

SERVER-53760 $unwind + $sort pipeline produces large number of file handles when spilling to disk

Storage

SERVER-46805 Validate should limit memory use in its second pass
SERVER-48528 ValidateTests can fail sporadically due to KeyString hashing
SERVER-51699 index_build_restart_secondary.js (indexbg_restart_secondary.js) should handle exceptions when checking indexes after restarting node
SERVER-54005 It is possible for the oplogTruncateAfterPoint logic to fail to find a oplog entry w/ timestamp LTE WT's all_durable timestamp
SERVER-56780 [4.4] mongod collStats does not handle large values for scale

Operations

SERVER-48567 Warnings while processing snmpwalk

Build and Packaging

SERVER-46871 liblzma presence apparently not checked by configure
SERVER-48691 Fix Ninja builds on Windows Enterprise Server
SERVER-50568 Platform Support: Remove Ubuntu18.04 zSeries from 5.0
SERVER-53054 The ninja builder fails to link on Windows with LNK1561: entry point must be defined
SERVER-53952 Building with ninja + ASan poisons the build/install/ directory
SERVER-55460 Fix RPM packaging and testing for SLES 12

Internals

SERVER-37125 Powercycle should ignore a process reference if it no longer exists
SERVER-40820 Jstestfuzz suite to introduce spurious write conflicts
SERVER-47720 Clarify "RecordId(...) not found in the index for key" log message
SERVER-48890 allow $addFields with empty document and have it be a no-op
SERVER-49336 Set client metadata if it is missing during failCommand
SERVER-49930 Log collection name in createCollectionForApplyOps() invariant that collections are not renamed out of the way in steady state replication
SERVER-50549 Transform connection-related error codes in proxied commands
SERVER-50576 mongokerberos utility is missing in the MSI installer
SERVER-50662 Support large doubles and other double values in FTDC
SERVER-51172 resmoke sometimes throws TypeError when calculating elapsed time for test
SERVER-52657 index_commands_shard_targeting.js relies on too short MaxTimeMs
SERVER-52689 Re-enable refine_shard_key_transaction_stress
SERVER-53035 provide a way to ASSERT from a non-main thread in unit tests
SERVER-53187 Structured log improvements to split_vector/chunk_splitter lines 22107 and 21908
SERVER-53334 Hitting unexpected invariant failure, causing server shutdown
SERVER-53624 4.4 mongos does not attach RetryableWriteError label to shutdown errors
SERVER-53643 Startup can see old version of featureCompatibilityVersion document
SERVER-53646 Catch exception if waiting for failpoint throws on close connections in awaitable_hello_on_nodes_with_invalid_configs.js
SERVER-53671 Make ~PooledScope() resilient to 'InterruptedAtShutdown' exceptions
SERVER-53726 Platform Support: Remove RHEL6 zSeries
SERVER-53728 Platform Support: Remove SLES12 zSeries
SERVER-54489 Full validation can append errors without bound
SERVER-54793 Delete core files if task is successful
SERVER-54878 Compact can log incorrect value for freedBytes
SERVER-54890 Disable background validation and dbHash checks on capped collections in 4.4
SERVER-54896 Setting getLastErrorDefaults breaks multi-document transactions
SERVER-55012 renameBetweenDBs needs to always reposition its cursor in the event of a writeConflict
SERVER-55034 The profile command should not take S or X database locks
SERVER-55119 Create startup warning indicating that X.509 certificates without SANs are deprecated
SERVER-55249 Archive all data files for failed tests on mainline required builders
SERVER-55275 Index builder must check for interrupt between collection scan and bulk load phases
SERVER-55316 Disconnect LDAP connections out of line
SERVER-55742 Define kmipClientCertificateSelector config on windows/macOS
SERVER-55753 Use w: majority for createCollection command in transactions_committed_with_tickets_exhausted.js
SERVER-56062 Restart index builds after CappedPositionLost errors
SERVER-56164 All performance projects use the master DSI branch
SERVER-56216 Commit queue should verify no open TODOs in code
SERVER-56307 The chunk migration "convergence algorithm" is very primitive
SERVER-56310 Use w: majority for createCollection command in kill_sessions_with_prepared_transaction.js
SERVER-56325 Wait for failpoint in server_transaction_metrics.js to be hit so that a valid serverStatus is received
SERVER-56347 Enable LSE intrinsics in release
SERVER-56371 Upgrade timelib to 2021.06
SERVER-56372 Add retryableFindAndModifyStorageLocation server parameter
SERVER-56373 [RRFaM] When writing FaM images to txn table, write oplog entries with needsRetryImage
SERVER-56374 [RRFaM] Have update path write to config.image_collection
SERVER-56375 [RRFaM] Have delete path write to config.transactions
SERVER-56376 [RRFaM] Add jstest that exercises both retryable FaM behaviors
SERVER-56377 [RRFaM] Add FSM test to perform retryable FaM while flipping server parameter
SERVER-56452 Self anchor in PooledLDAPConnection::setup's callback
SERVER-56468 Incorrect plan cache entry for {$ne: null} predicate, leads to missing query results
SERVER-56501 Add op counters for legacy op codes (OP_QUERY, OP_INSERT, etc.)
SERVER-56509 Wrap unique index insertion _keyExists call in a WT cursor reconfigure.
SERVER-56516 Fix undefined behaviour in parsing code for $slice projectional operator
SERVER-56563 [RRFaM] Forge noop image oplog entries for chunk migration
SERVER-56630 Unittest OpObserverImpl::onDelete/onUpdate paths for retryable findAndModify
SERVER-56713 [RRFaM] Avoid creating images while in initial sync
SERVER-56751 Check for todo comments as part of running patch build
SERVER-56772 Validator BSON is lost if write conflict occurs during collMod
SERVER-56819 $indexOfCP returns incorrect result when searching for empty string inside empty string with non-zero start index (classic execution engine only)
SERVER-56839 Index seeks concurrent with recently-committed prepared transactions can return wrong results
SERVER-56929 Improve error message for improper downgrades resulting in invalid collection options
SERVER-56952 [4.4] Add new build variant with storeFindAndModifyImagesInSideCollection=true
SERVER-56961 [v4.4] Ensure cluster is in fCV 4.4 while running FuzzerRestoreClusterSettings hook
SERVER-56976 'setIndexCommitQuorum' command has no effect while the index build is waiting for the commit quorum to be satisfied
SERVER-57015 [RRFaM] Writing to the image collection must be in an UnreplicatedWriteBlock
SERVER-57036 Pin MarkupSafe == 1.1.0
SERVER-57043 Test for Branching
SERVER-57053 Rewriting $nor with a $text predicate to $not is invalid
SERVER-57057 Reduce routing info refreshes on the mergeChunks path
SERVER-57064 Log create index and dropIndex(es) on mongos
SERVER-57074 [v4.4] Add requires_document_locking tag to index_build_capped_position_lost.js
SERVER-57084 MSI construction must depend on PDB installation
SERVER-57091 Infinite loop in GranularityRounderPreferredNumbers::roundDown
SERVER-57117 ReadPreferenceSetting parsing is not resilient to incorrect types for 'hedge' option
SERVER-57136 Incompatible wire version error on secondary shutdown in sharded cluster
SERVER-57145 Invariant failure at OCSPManager::requestStatus
SERVER-57157 assert serverStatus command works in getBinVersion() jstest helper
SERVER-57172 Do json.send before DSI post_run
SERVER-57173 Write invalidated image for retryable findAndModify when secondaries apply operations earlier than minValid
SERVER-57192 [4.4] Lower dbHash and background validation lock acquisition timeouts
SERVER-57233 Reap LDAP connections inline if multithreading is not enabled
SERVER-57251 Fix checkLog race in salvage_incomplete_rolling_index_builds.js
SERVER-57270 Disable prepare_read_cursor_out_of_bounds.js on ephemeralForTest
SERVER-57273 remove the flow_control_replica_set.js test
SERVER-57275 Update kmip_server.py to be more verbose
SERVER-57328 Make ReplsetTest.upgradeSet() tolerant of reelections
SERVER-57330 Update perf yaml configs for perf and sys-perf to use perf.send
SERVER-57476 Operation may block on prepare conflict while holding oplog slot, stalling replication indefinitely
SERVER-57492 Side table writes insert more than just the keystring
SERVER-57497 store_retryable_find_and_modify_images_in_side_collection.js should account for a later clustertime in retried findAndModify responses
SERVER-57541 mypy 0.900 breaks lint_pylinters
SERVER-57557 [v4.4] Support running checkFCV() shell helper with mongos connection
SERVER-57564 Increase system timeout duration to >2 hours to allow fio to copy over all files
SERVER-57708 ClientMetadata Parsing errors can leave ClientMetadataState decoration in invalid state
SERVER-57768 Deprecated counters aren't reset to zero on wrap
SERVER-57897 Add readPrefMode option to benchRun find/findOne ops
SERVER-57954 Update TPC-C version in sys-perf.yml
SERVER-58267 Fix shardVersionRetry usages in v4.4 (partial cherry-pick of SERVER-47530)
SERVER-58306 chunkInserter thread can terminate() if checkForInterrupt() is called after stepdown has killed the opCtx
WT-6204 Possible race between backup and checkpoint at file close
WT-6230 Sanitize python test suite directory naming
WT-6362 Ensure that history store operations in user session context are correct
WT-6387 Remove unused WT_CURSTD_UPDATE_LOCAL flag
WT-6403 Restore format non-timestamp transactional testing
WT-6436 Fix not resetting the key when retrying to search the history store
WT-6538 Fix onpage prepare visibility check if the start and stop are from the same prepared transaction
WT-6555 Fix memory error in test_txn13
WT-6576 Fix the aborted on-disk prepared key
WT-6737 Add explicit checkpoints in test_hs14 to improve predictability
WT-6893 Disable huffman config in compatibility test
WT-6956 Cut WiredTiger 10.0.0 release
WT-7076 Data placement for tiered storage in WiredTiger
WT-7092 Reduce calls to hash URI when opening/closing cached cursors by one
WT-7105 Add recovery error messages to include the URI
WT-7106 Increase how often delta encoding is used for history store records
WT-7133 Fix bug in stat collection when target pages are reduced due to high HS cache pressure
WT-7135 Additional checks to detect when writing corrupted metadata
WT-7173 Devise object naming scheme for tiered storage
WT-7176 Adding Ubuntu 18.04 ASAN variant to wiredtiger build
WT-7185 Avoid aborting a transaction if it is force evicting and oldest
WT-7186 Correct expected in-memory abort updates in prepare scenario
WT-7190 Limit eviction of non-history store pages when checkpoint is operating on history store
WT-7191 Replace FNV hash with City hash
WT-7204 Update cursor-backward walks key instantiation support
WT-7228 Do not call next if we don't find the key in the history store
WT-7229 Align out of order and mixed mode handling
WT-7230 CMake build system support for x86 POSIX targets
WT-7234 Prefix-compressed keys and memory amplification
WT-7241 Add asserts to verify if prepared transaction abort mechanism is working as expected
WT-7253 Add import functionality to test/format
WT-7264 Creating a new configuration for search near that allows it to exit quickly when searching for prefixes
WT-7266 Test to validate re-reading files that were closed with active history
WT-7267 Compare entire history store key when inferring cursor position in search_near
WT-7281 Add metric to record total sessions scanned
WT-7282 Make backup debugging messages into verbose messages
WT-7296 Merge default configuration with supplied test configuration in test framework
WT-7297 Fix search_near assertion
WT-7312 Keys/Values updated to String type and save the created keys
WT-7315 Implementation of the update thread operation in the test framework
WT-7316 Adding operation throttles, and modifying component functionality to separate core loop
WT-7325 Created a script to generate a new test in the WT test framework
WT-7329 Add hook capability to Python testing
WT-7332 Add ability to cycle through create and drop tables in workgen
WT-7345 Update incorrect copyright notices format
WT-7346 Connect new API changes to local storage extension
WT-7348 Complete CMake POSIX support
WT-7355 Create python hooks to validate tiered cursor implementation
WT-7356 Implement bulk load for tiered tables
WT-7365 Change the configuration file format
WT-7367 Do not remove unstable updates of an in-memory database btree page
WT-7368 Add WT_STORAGE_SOURCE.customize_file_system in place of locations
WT-7374 Add missing branch checking logic for doc-update task
WT-7376 Initialize tiered cursor name
WT-7379 Disable column store tests in compatibility test
WT-7380 Fix wiredtiger connection string to clear statistics
WT-7381 Cache btree's ckptlist between checkpoints
WT-7382 Refactor of database validation in the test framework
WT-7384 Fix an assert fire when inserting to the history store
WT-7385 Remove 'auth_token' from being reconfigurable
WT-7387 Replace cluster/member with hostid
WT-7388 Add parens to assignment in conditional
WT-7389 Remove on positioned tiered cursor should leave cursor positioned
WT-7390 Add --noremove flag to Python test runner
WT-7394 Coverity analysis defect 118020: Uninitialized scalar variable
WT-7395 Coverity analysis defect 118042: Dereference after null check
WT-7400 Set WT_HS_READ_ALL flag for the search before fixing the out of order timestamps
WT-7403 Random cursor on empty tiered table loops forever
WT-7407 test/format failure classifier
WT-7409 Remove dead code
WT-7410 Split session flags into two to accommodate more session flags in future
WT-7411 Stats and counter to track prepared updates
WT-7413 Add an option to wtperf to run a backup operation
WT-7414 Create a python test to ensure that all tables that are dropped during backup are exists in the backup
WT-7415 Add new configuration files with backup option
WT-7416 Imported table requires full copy between incremental backups
WT-7419 Tiered local storage changes to use WT file system
WT-7420 Tiered local storage changed to flush files to bucket directory
WT-7423 Clear checkpoint LSN and backup metadata on import
WT-7425 Fix for the -C command line option
WT-7428 Move bucket storage to tiered structure
WT-7429 Set readonly metadata when switching tiered objects
WT-7437 Upgrade documentation to doxygen 1.8.17
WT-7440 Integrate file cursor with tiered storage
WT-7446 Fix incorrect duration_seconds value in test framework
WT-7447 Fix the assert fire because onpage out of order update is not popped from the stack
WT-7452 Improve logging when recovery (and RTS) is taking a long time
WT-7453 Coverity analysis defect 119968: Continue has no effect
WT-7454 Coverity analysis defect 119967: Continue has no effect
WT-7455 Coverity analysis defect 119966: Redundant test
WT-7456 Coverity analysis defect 119965: Uninitialized pointer read
WT-7457 Coverity: fix error in local store rename
WT-7458 Coverity analysis defect 119949: Redundant test
WT-7459 Coverity analysis defect 119947: Redundant test
WT-7463 Use wt_off_t to avoid incompatible pointer types
WT-7468 Fix tiered file and object metadata configuration
WT-7469 Fix potential hot backup read lock never unlocked
WT-7474 Reset cursor-order checks whenever a search is performed
WT-7475 Update format to use the new history-store cursor type
WT-7476 Update configuration handling to allow for optional configuration settings
WT-7477 Fix coverity bug: possible NULL dereference
WT-7478 Fix coverity printf arg type to match format
WT-7480 Cleanup thread_contexts in the test framework
WT-7481 Fix the wrong assert of disk image write gen comparison with btree base write gen
WT-7484 Coverity analysis defect 120014: Uninitialized scalar variable
WT-7485 Coverity analysis defect 120018: Resource leak
WT-7486 Coverity explcit NULL dereferenced
WT-7487 Coverity explcit NULL dereferenced
WT-7488 Coverity analysis defect 120015: Dereference after null check
WT-7489 Avoid running RTS concurrently with checkpoint
WT-7493 Add a new connection config to control the page eviction with update restore eviction
WT-7496 Add operations each tier can support to data structure
WT-7497 Add flush component to object metadata
WT-7498 Implement tiered storage internal thread operations
WT-7499 Change WT_STORAGE_SOURCE.flush API and add flush_finish
WT-7500 Refactor tiered thread start code
WT-7504 Fix test_hs21 cache stuck dirty
WT-7506 Allow single and double quotes inside auto-formatted comments
WT-7510 Disable import when direct I/O is enabled in test/format
WT-7511 Add assert to ensure the history store page is pinned before search
WT-7514 Let tiered subsystem open files on behalf of block manager
WT-7519 Fix flags field overflow in WT_DATA_HANDLE
WT-7523 Test to verify multiple prepared updates either commit/rollback
WT-7525 Add key order check right after history store insert
WT-7528 Fix WT_SESSION alter returns EBUSY
WT-7531 Treat update restore eviction as a progress
WT-7532 Hold schema lock when tiered manager calls flush_tier_once
WT-7535 Complete CMake Windows support
WT-7537 Change local tier object suffix to .wtobj
WT-7541 Updated evergreen command to parse folder names with undesirable characters
WT-7542 Add a Python test to reconfigure zstd compression level after restart
WT-7545 Limit upgrade/downgrade testing to timestamp transactions at snapshot isolation
WT-7546 Coverity: Minor issues in CppSuite test harness
WT-7548 Create macro to identify dhandles directly associated with a Btree
WT-7549 clean up block manager identifiers to use object ID naming
WT-7550 Properly check pinned page and fix not resetting cursor if error
WT-7565 Update invalid backup configurations
WT-7566 Resolve write after free for dead dhandle
WT-7567 Rework tiered storage reconfigure
WT-7569 Fix wrongly squash an out of order timestamp update
WT-7573 Print an error message and exit for invalid backup configurations in wtperf tests
WT-7574 disable compact tests for OS/X
WT-7577 Add sync configuration to flush_tier
WT-7579 Disable prefix testing in compatibility test due to snapshot isolation search mismatch
WT-7581 Make wt_cache_config args consistent with other config functions
WT-7588 Make tiered object ID numbers 32 bits
WT-7594 Use key_consistent mode on format TS runs
WT-7595 Add flag to history store cursor to track whether underlying table insertion was successful
WT-7602 Fix MacOS CMake Compilation Issues
WT-7625 Updating throttle configuration to be more user friendly in testing framework
WT-7633 Switch doc-update Evergreen task to newer Ubuntu 20.04 distro
WT-7634 Disable man page generation in Doxygen
WT-7642 Fix insert search flag in history store cursor key order check
WT-7643 Update checkpoint decode tool for tiered storage
WT-7651 Add synchronization for flush_tier calls
WT-7656 Destroy tiered condvar after thread is joined
WT-7699 Fix RTS handling to abort an out of order prepared transaction
WT-7706 Use same transaction update when on-disk value is an aborted prepared update
WT-7710 Fix to use history store btree to initialise history store cursor
WT-7721 Update test-format to reopen an existing database with different config
WT-7783 Fix RTS to restore tombstone when an on-disk update is out of order prepare update

4.4.6 Changelog

Security

SERVER-51364 Ubuntu 18.04 Server with OCSP and TLS fails to work
SERVER-54799 AWS IAM Auth does not support ARNs for AWS China and Gov regions where the ARN does not start with "arn:aws:iam"
SERVER-55122 Fix OCSP to allow intermediate certificates in tlsCertificateKeyFile
SERVER-55332 Fix race condition in OCSP sharding test

Sharding

SERVER-48573 txn_two_phase_commit_killop.js should handle clients with no opCtx
SERVER-52564 Deadlock between step down and MongoDOperationContextSession
SERVER-53973 Migration manager recovery should handle failed findIntersectingChunk during refineShardKey

Replication

SERVER-50486 invokeWithSessionCheckedOut being called on prepared transactions on secondaries
SERVER-54970 Update "Aborting a Single Replica Set Transaction" section of the arch guide
SERVER-55007 Deadlock between step down and MongoDOperationContextSession
SERVER-55008 Only abort two-phase index builds when BackgroundOperationInProg error in initial sync

Storage

SERVER-55374 [v4.4] Backport original SERVER-50045 change, again

Operations

SERVER-48580 Await replication in client_metadata_slowlog_rs.js

Internals

SERVER-49237 Add a way for OperationContexts to opt-in to always getting interrupted at stepdown
SERVER-50060 Make oplog_slow_sampling_logging.js tolerant to small changes in the clock
SERVER-50875 Coverity analysis defect 115634: Uninitialized scalar field
SERVER-51335 Repair libfuzzer on 4.4
SERVER-51425 Restarting JournalFlusher after rollback is not thread-safe
SERVER-51457 Improve log line for failed speculative auth attempts
SERVER-53604 Include original aws iam arn in authenticate audit logs
SERVER-53852 MongoDB hangs randomly
SERVER-55189 Call awaitReplication() before returning from syncFrom() in rslib.js
SERVER-55602 Relax non-read-only invariant in WiredTigerKVEngine::makeTemporaryRecordStore when recoverToOplogTimestamp is specified
WT-7373 Improve slow random cursor operations on oplog
WT-7426 Set write generation number when the page image gets created
WT-7442 RTS to open dhandle only when the dhandle has unstable updates
WT-7460 RTS to abort all the updates from a prepared transaction

4.4.5 Changelog

Warning

MongoDB version 4.4.5 is not recommended for production use due to a critical issue, WT-7426. The issue is fixed in version 4.4.6.

Sharding

SERVER-53462 Improve range-deleter logging
SERVER-53827 range_deleter_server_status.js should use assert.soon to check the number of range deletion tasks
SERVER-54014 Define a reasonable maxTimeMsOverride for the checkOID requests
SERVER-54585 Unable to run findAndModify against the Config server collections
SERVER-54701 shardCollection might successfully write to the config server but end up with missing indexes on the primary Shard

Replication

SERVER-48179 Removing rollback node will crash the node on transition out of rollback
SERVER-49294 waitInIsMaster_failpoint.js should ensure the shell is connected before enabling failpoint
SERVER-50412 Change “not master” error messages to “not primary”
SERVER-50414 Change “not master or secondary; cannot currently read from this replSet member” to “not primary or secondary; cannot currently read from this replSet member”
SERVER-53248 call awaitLastOpCommitted before committing transaction in retryable_prepared_commit_transaction_after_failover.js
SERVER-53666 curSecondary in rollback test fixture not guaranteed to be in SECONDARY state after restart
SERVER-54147 initial_sync_nodes_contribute_to_liveness_majorities.js should verify that the term increases instead of comparing to a specific number
SERVER-54180 ReplSetTest's stepUp function only waits 6 seconds for nodes to agree on primary
SERVER-54339 Prevent spontaneous elections in rollback_crud_op_sequences.js
SERVER-54528 Race between shutting down replica set and initial sync failing in initial_sync_fails_when_source_removed.js
SERVER-54540 Allow for network errors when restarting heartbeats to induce rollback in rollback test fixture
SERVER-54648 Add correct log verbosity to disallow_adding_initialized_node2.js
SERVER-54938 Only flush journal once per batch on secondary oplog application

Query

SERVER-48963 Make max_time_ms_sharded.js more robust
SERVER-54710 Large number of $or clauses can create profiling entry exceeding max BSON size, causing the query to fail when it should not

Aggregation

SERVER-54296 Invariant failure | aborting after invariant

Storage

SERVER-45847 Pull the JournalFlusher out of the storage engine layer and place it above the storage engine
SERVER-46826 Instantiate the JournalFlusher thread for ephemeral engines and when non-durable (nojournal=true)
SERVER-48149 Move callers of waitUntilDurable onto JournalFlusher::waitForJournalFlush
SERVER-49191 Cache the oplogTruncateAfterPoint in memory and only update it when it changes
SERVER-53875 Stop the JournalFlusher thread from running at all unless requested in unit tests so that it does not access infrastructure still being initialized

Operations

SERVER-50396 Align mongosymb_multithread to current SIGUSR2 stack dump format
SERVER-52651 Add FLE support for Azure
SERVER-54770 Add /proc/meminfo MemAvailable to FTDC

Build and Packaging

SERVER-54031 errorcodes.py doesn't check embedded C++ code in Python scripts
SERVER-54057 Mongodb-org-server el8 package has dependency on python2
SERVER-54200 install-core should be the default build target, rather than just mongod
SERVER-54255 Update RHEL 7 AMI for package testing
SERVER-54386 mongodb 3.6.22 install fails if systemctl daemon is not running
SERVER-54699 mongodb-org 4.4.4 - EL6 package missing
SERVER-54858 Update Amazon Linux AMI for package testing
SERVER-55067 Migrate Windows builds to VS Current distro

Internals

SERVER-5722 Support a 'sort' field in ops array for JS Benchmarking Harness
SERVER-45836 Provide more LDAP details (like server IP) at default log level
SERVER-46686 Explain does not respect maxTimeMS
SERVER-47509 resmoke accepts multiple "mongodSetParameters" options but only uses the last one
SERVER-48650 Unit tests' ServiceContext's NetworkInterfaceMockClockSource cannot continue to depend upon the lifetime of the ReplicationCoordinator to remain valid
SERVER-49695 Clarify and correct synchronization of isOplogTruncateAfterPointBeingUsedForPrimary
SERVER-50426 Add a delimiter indicating the end of a death test run
SERVER-50592 Update mypy pip requirement
SERVER-51038 resmoke.py can't be run on python 3.8
SERVER-51281 mongod live locked
SERVER-51330 StorageTimestampTests depends on oplog batch writer thread scheduling
SERVER-51465 Update package tests after compass installer update
SERVER-51722 Ensure that MongoDB builds with ARM LSE atomics
SERVER-52610 Verify installation prefix is added to correct location in the RPM
SERVER-52833 Capped collections can contain too many documents after replication recovery
SERVER-52884 Remove race in reconstruct_prepared_transactions_initial_sync.js
SERVER-52953 $geoNear does not always match coordinate given to 'near' when maxDistance is set to 0
SERVER-53359 jstestfuzz (mutational) fuzzer is forcing last-lts fCV during validate instead of latest
SERVER-53394 Make ShardingTaskExecutorPoolReplicaSetMatching default to disabled for MongoD
SERVER-53428 Add 'status' field to initialSyncMetrics
SERVER-53431 Server should respond running operations with appropriate topologyVersion on stepdown
SERVER-53566 Investigate and reproduce "opCtx != nullptr && _opCtx == nullptr" invariant
SERVER-53579 python's dev-requirements.txt is incompatible with pip 20.3.3
SERVER-53612 StepDown hangs until timeout if all nodes are caught up but none is immediately electable
SERVER-53787 Update logkeeper snapshot
SERVER-53831 Force SpiderMonkey to garbage collect in ReplSetTest.checkOplogs
SERVER-53932 Multikey write during recovery of prepared transaction could use commit timestamp < stable timestamp
SERVER-53980 Update linkbench2 version in sys-perf.yml modules
SERVER-53985 Ensure joinUnblockStepDown thread has connected and is waiting before initiating stepdown in unconditional_step_down.js
SERVER-53992 Remove calls to detect-outliers from performance tasks
SERVER-54091 Update assertion messages for dbhash check run by resmoke.py
SERVER-54136 Make the authenticate command respect enforceUserClusterSeparation
SERVER-54139 Remove CURL share support from HTTP curl client
SERVER-54169 update geo_s2disjoint_holes.js to check expected error codes
SERVER-54365 Allow ClientOutOfLineExecutor to skip shutdown
SERVER-54366 Wait for node to start stepdown before killing shutdown operation in force_shutdown_primary.js
SERVER-54369 Update Jasper gRPC to latest version
SERVER-54406 NetworkInterfaceMock should allow simultaneous interruption and response
SERVER-54450 Send perf.json after dsi analysis step
SERVER-54458 updated vendored scons to use uuid for cache tmpfiles
SERVER-54484 resmoke/util/archival.py relies on deprecated and now removed thread.isAlive
SERVER-54608 dropIndexes needs to make the same assertions on primary and secondary nodes
SERVER-54667 Robustify positional operator test case in jstests/core/collation_update.js
SERVER-54684 Decreased JS performance on arm64 due to mising init function
SERVER-54685 wrong definition of MONGO_YIELD_CORE_FOR_SMT for arm64
SERVER-54897 Adding the shard-single config to etc/system_perf.yml
SERVER-55013 Improvement lifetime management in PooledLDAPConnection::runFuncWithTimeout
SERVER-55019 install_compass does not run on all supported platforms
SERVER-55298 Reproduce and Investigate BSONObjectTooLarge error
SERVER-55369 [v4.4] Don't run drop_indexes_prevents_dropping_ready_indexes_after_aborting.js on single phase index build variants
SERVER-55370 Fix drop_indexes_aborts_in_progress_index_builds_wildcard.js behaviour with BackgroundOperationInProgressForNamespace
SERVER-55428 4.9 Branching Test Ticket
WT-5137 Switch to macos-1014 Evergreen distro
WT-6066 Re-enable endianness tests on evergreen
WT-6163 Fold pinned existence check into __wt_txn_pinned_timestamp
WT-6389 Enforce that history store cursor lifespan is as expected
WT-6513 Update history store configuration to make overflow keys unlikely
WT-6525 New parameter required in __wt_hs_insert_updates to indicate successful write in history
WT-6673 RTS fix inconsistent checkpoint by removing updates outside of the checkpoint snapshot
WT-6709 Remove timestamp queues that used to store read/durable timestamps
WT-6714 Update API documentation for WT exposed APIs
WT-6715 Document the behaviour of logged/non-logged tables in WT
WT-6819 Allowing sweeping handles with active history
WT-6850 Create and add config parsing for the workload generator class
WT-6851 Add a thread management library to the cpp test framework
WT-6853 Add workload operation tracking
WT-6854 Implement test harness validation
WT-6855 Initial implementation of runtime monitor
WT-6856 Extend the configurations supported by the framework
WT-6897 Create test with the functionality of history store dump
WT-6898 Implement the history store dump of a particular collection / tree
WT-6912 Write "logging" subpage for Architecture Guide
WT-6935 Update connection base write generation value from all file checkpoints in metadata
WT-6950 Create test coverage documentation landing page
WT-6963 Migrate history store verify to use the new history store cursor
WT-6964 Migrate reconciliation to use the new history store cursor
WT-6965 Migrate standard cursor search to use the new history store cursor
WT-7028 Sweep thread shouldn't lock during checkpoint gathering handles
WT-7045 Fix FileNotFoundError in simulate_crash_restart
WT-7047 Use stable timestamp as required in test_prepare_hs04
WT-7060 Set the history store file size stat on startup
WT-7070 Triage column store HS test failures
WT-7072 Add a column store example
WT-7085 Migrate rollback of prepared txns logic to use new history store cursor.
WT-7086 Migrate rollback to stable logic to use new history store cursor.
WT-7087 API for tiered storage
WT-7095 Checkpoint generation update during history store checkpoint
WT-7099 Fix the assert not considering reinsert to history store after a prepared rollback
WT-7108 Update column store documentation to include ex_col_store example
WT-7119 Add variable-length column store support to RTS for updates in the data store with no history
WT-7120 Add variable-length column store to RTS for updates in the data store with history
WT-7143 Collect data on failing assert when in-use dhandle can't be reopened
WT-7146 Fix compile after syncing with develop
WT-7150 Trailing uninit mem in schema project
WT-7160 Migrate wiredtiger-doc-build job to Evergreen
WT-7162 Removing c++ test frameworks for memory sanitizer testing
WT-7163 Document new wt printlog option
WT-7164 Merge "HS cursor restructure" feature branch into develop
WT-7167 Do not perform forward compatibility test with wt dump/load
WT-7174 Fix memory leak for cppsuite test
WT-7177 Create a shared storage extension that implements a local storage solution
WT-7181 Turn off LSM tests in test/format
WT-7183 Sort test filenames in test coverage document
WT-7184 Prevent non-ASCII input in doc files
WT-7192 Fix failing assert when in-use dhandle can't be reopened
WT-7200 Incorrect stop transaction ID when fixing out of order timestamps in history store
WT-7202 Check for no count in assertion
WT-7206 Update test framework to align with C++ style
WT-7208 Leave table cursor in a valid state when subordinate index fails to open
WT-7210 Add testing for import/export while a backup cursor is open
WT-7211 Added missing return statement in stress testing framework
WT-7214 Run macOS compile task on macos-1012 Evergreen distro
WT-7217 Coverity analysis defect 117685: Uninitialized pointer read
WT-7223 WT_CALL_FUNCTION should not print out a message
WT-7224 Moved test_config.c to src/config
WT-7225 Restructure verify key function for the history store
WT-7235 Enhance tiered API for object naming
WT-7237 Creating component interface to improve class heirachy in the test framework
WT-7238 Use of constructor initialization list to avoid seg fault
WT-7239 Embed compile step into macOS unit-test
WT-7242 Fix example to correctly use API for system and no encryption
WT-7243 Fix unexpected output failure in test_bug025
WT-7246 Remove old HS cursor from session
WT-7249 Adjust storage source extension APIs
WT-7252 Remove redundant code which was pushed by WT-6673
WT-7254 Clean function names inside cur_hs.c
WT-7257 Add RTS test to skip pages that don't have unstable updates
WT-7261 Ensure history store cursor is closed when there is an error after opening one
WT-7263 Move comment to code it talks about
WT-7268 Coverity reports failures for test_harness code
WT-7269 Enable column store scenarios to all RTS existing tests
WT-7270 Add missing C include into test.h for older g++ versions to compile
WT-7275 Add timestamp and transaction management to the test framework
WT-7288 Construct a many-dhandle-stress.wtperf workload
WT-7289 Add warning and fatal wtperf options for idle_table_cycle
WT-7290 Import many-dhandle-stress.wtperf to workgen
WT-7295 Compatibility with older versions of WT
WT-7298 Remove LSM references from tiered cursor code
WT-7299 Remove extraneous output from results.txt for Python tests
WT-7300 Moving workload_generator load phase into run
WT-7301 Revert configuration changes in poc_test
WT-7302 Use last connection base write generation as a minimum base write generation for a btree
WT-7307 Rework the tombstone visibility checks for history store cursor previous and next calls
WT-7308 Update the configuration definition of the test framework to be more structured
WT-7311 New option to specify test to run in the test framework
WT-7328 Coverity: Multiple warnings in local_storage extension
WT-7331 Fix exact return when we place the history store cursor on e exact key initially
WT-7338 Copy the configuration directory when building the test framework
WT-7339 Coverity: Incorrect deallocator
WT-7349 Free memory access when walking through HS during eviction
WT-7354 Refactor tiered schema code to follow conventions
WT-7360 Fix batchtime setting for some Evergreen builders
WT-7361 Remove doc-update task from patch build

4.4.4 Changelog

Security

SERVER-49280 Investigate issues with ocspValidationRefreshPeriodSecs

Sharding

SERVER-49713 Skip checking for orphaned documents in shard_removal_triggers_catalog_cache_invalidation.js
SERVER-53236 Disable merge_with_move_primary.js from running on the sharding_csrs_continuous_config_stepdown suite
SERVER-53444 Make tests that run removeShard in assert.soon to wait for the state to become "completed" not error on ShardNotFound
SERVER-53471 Set rangeDeleterBatchSize to 128

Replication

SERVER-29030 Announce new primary via heartbeat requests
SERVER-50318 Only restart scheduled heartbeats
SERVER-53026 Secondary cannot restart replication
SERVER-53345 Excuse arbiter_new_hostname.js from multiversion tests
SERVER-53609 lastCommittedTransaction section causes frequent schema changes that limit FTDC retention

Query

SERVER-47869 Add diagnostic logging to ClusterCursorManager
SERVER-50769 server restarted after expr：{"expr":"_currentApplyOps.getArrayLength() > 0","file":"src/mongo/db/pipeline/document_source_change_stream_transform.cpp","line":535}}
SERVER-53176 Return an error when commitQuorum includes voting buildIndexes:false members
SERVER-53929 Server crash after invariant failure

Aggregation

SERVER-40090 DISTINCT_SCAN in agg is only used when certain format of _id is specified
SERVER-51886 $lookup + $merge pipeline may fail to resolve views correctly when collection names collide

Storage

SERVER-46876 During the eviction pressure, we should quit the compact operation instead of crashing the process
SERVER-48002 Do not enforce DataCorruptionDetected assertion when ignoring prepare conflicts
SERVER-48471 Hashed indexes may be incorrectly marked multikey and be ineligible as a shard key

WiredTiger

SERVER-52596 Detect memLimitMB in K8S pod and inform WiredTigerCacheSize calculation for pod RAM instead of total system RAM

Build and Packaging

SERVER-53037 RHEL8.2 arm64 packages have x86_64 in the name

Internals

SERVER-43904 When stepping down, step up doesn't filter out frozen nodes
SERVER-46740 establishCursors() must always drain the AsyncRequestsSender::_baton
SERVER-47030 Fix date_time_support code to not produce exceptions
SERVER-48516 at startup, confirm replica set node with auth can connect to itself
SERVER-48994 LogTransactionOperationsForShardingHandler must use UninterruptibleLockGuard
SERVER-49222 ARM64 support on Amazon Linux 2
SERVER-49371 Introduce the InlineRecursiveCountingExecutor
SERVER-49495 Fix race in auth_pass_prompt.js
SERVER-50475 mr_noscripting.js can fail spuriously on new mapReduce implementation
SERVER-51337 use-after-move in NetworkInterfaceMock
SERVER-52585 idl_tool.py not setting up buildscript/idl/* dependencies
SERVER-52787 Adjust ocsp_sharding_basic test response validity period
SERVER-52867 Make sure secondary has finished closing connections after being removed before sending new commands in awaitable_hello_on_nodes_with_invalid_configs.js
SERVER-52879 Periodic operation latency spikes every 5 minutes due to closing idle cached WT sessions
SERVER-52919 Wire compression not enabled for initial sync
SERVER-52983 Assertions in initial_sync_replSetGetStatus.js have to account for batch sizes smaller than collectionClonerBatchSize
SERVER-53234 jstests/core/profile2.js fails when background operations are run against test database
SERVER-53323 Run concurrency_simultaneous_replication on large distro on Enterprise Windows (inMemory) buildvariant
SERVER-53376 [4.4] dbHash can live lock an aborting index build
SERVER-53422 [v4.4] Move create_collection.js from noPassthroughWithMongod to noPassthrough
SERVER-53440 [v4.4] plan_cache_drop_database.js assertion too strict
SERVER-53445 [4.4] impose lock acquisition timeout for background validation
SERVER-53559 Stop the background workload in the backup/restore test before adding the node from the backed up data to the replica set
SERVER-53565 Update TPC-C version in sys-perf.yml and perf.yml modules
SERVER-53694 CleanEveryN timing information needs to accounts for hard-coded N
SERVER-53717 Dynamically split large concurrency tasks
SERVER-53780 Fix missing quote in test parameters
SERVER-53841 Additional logging for oplog_rollover.js
SERVER-53844 Ensure insert into new collection is replicated before asserting in initial_sync_drop_against_last_stable.js
SERVER-53960 burn_in_tests tries to run enterprise test against non-enterprise build variant
SERVER-54110 Fix buildscripts_test failures on 4.4
SERVER-54126 [4.4] buildindexes*.js assumes commitQuorum is always accepted
SERVER-54134 Ignore newer mongo versions on older branches of setup_multiversion_mongodb.py
WT-4625 Add a check for camelCase names
WT-4649 Updating build system to allow for different C++ compilers
WT-5101 Make Clang Format recognise remaining loop macros
WT-5111 Fix wt2909_checkpoint_integrity and wt3120_filesys so it is natural to run standalone
WT-5545 Add fixed-length column store support to RTS for handling updates present in the update list
WT-6309 Add support for start/stop arguments to wt printlog command
WT-6313 Added verify_metadata configuration to the exclusion list when writing to basecfg
WT-6354 Increase wt utility coverage with printlog, downgrade, upgrade tests
WT-6430 Move WT_CONN_SERVER flags into their own field
WT-6432 Add test case to misuse the timestamp API
WT-6504 Don't fallback to onpage value as base value if we see the onpage value in the history store
WT-6567 Write "rollback to stable" subpage for Architecture Guide
WT-6568 Fix split generation use
WT-6605 Enhance rollback-to-stable verbose messaging
WT-6677 Map read committed/uncommitted isolation to read-only transaction
WT-6710 Change the default transaction isolation to snapshot
WT-6711 Add new API WT_SESSION.reset_snapshot to update the snapshot
WT-6717 Restrict usage of LSM to only operate in conjunction with compatible functionality
WT-6740 Fix unintentionally releasing the snapshot by mistreating the recovery session as an eviction session
WT-6743 Save and restore session's data handle during cursor reopen call
WT-6772 Add support for prepared updates in datastore for test_hs09
WT-6800 Insert one key per transaction to make test_txn24 pass on macOS
WT-6802 Don't set operation timer for internal and reentry api calls
WT-6831 Retry search if it race with prepared update commit/rollback
WT-6846 Initial test program for the new cpp test framework
WT-6848 Split the program into test and framework components
WT-6861 Add the ability to log messages about unexpected timestamp usage
WT-6862 Remove duplicate in statistics descriptions
WT-6863 Reduce code duplication by improving statistics macros
WT-6866 Refactor python backup tests initial base class
WT-6888 WTPERF reports incorrect upper bound item count during populate
WT-6901 Write "cursor" subpage for Architecture Guide
WT-6924 Queue history store pages for urgent eviction when cache pressure is high
WT-6946 Adding test tags to an initial set of test programs
WT-6947 Auto generate test coverage documentation from test tags
WT-6969 Do not update the existing snapshot for autocommit transactions
WT-6981 Add randomness to Python test suite runs
WT-6983 Make wiredtiger.in text wrapping consistent across Python versions
WT-6990 New cursor debug configuration isn't considered in __wt_cursor_cache_get
WT-6991 Make WT_IS_HS and WT_IS_METADATA consistent - both operating on dhandle
WT-6992 Add timing stress between datastore and history store search
WT-6994 Dump the cursor page whenever a key out order is detected
WT-6996 Fix suite_random.rand32() in python test suite
WT-7004 Architecture guide page for checkpoints
WT-7020 Assert the previous update timestamp of a key
WT-7025 Coverity: Unused value "op_ts"
WT-7026 Atomically read and set ref->addr in case of race
WT-7027 Run the metadata checkpoint for force_stop at read-committed isolation for incremental backup
WT-7038 Update headers to be C++ compatible
WT-7039 Creating test configuration framework using the WiredTiger configuration API
WT-7054 Change the order of key out-of-order prints to avoid race
WT-7065 Add check for WT_DHANDLE_DEAD to assertion
WT-7066 Point README doc link to develop/index.html
WT-7067 Add column store to test_hs01
WT-7068 Add column store support to test_hs03
WT-7069 Enable column store configuration to history store
WT-7071 Add column store support to test_hs16
WT-7084 Fix assert in test code and a comment error
WT-7089 Don't skip checkpointing objects that have obsolete pages
WT-7091 Restrict usage of LSM to only operate in conjunction with compatible incremental backup mechanism
WT-7102 Migrate full and incremental backup test functionalities into wtbackup class
WT-7104 Redact user data from printlog output
WT-7109 Retain no longer supported configuration options for backward compatibility
WT-7113 Integrate prototype tiered storage code into WT
WT-7114 Revert Makefile code to always run the prototype script
WT-7116 Improve the compatibility test to test the configuration options for backward compatibility
WT-7117 RTS to skip modifies that are more recent than on-disk base update while restoring an update
WT-7121 Include log-structured allocation python tests in WT
WT-7126 Coverity analysis defect 116991: Explicit null dereferenced
WT-7127 Coverity analysis defect 116992: Unchecked return value
WT-7128 Coverity analysis defect 116993: Resource leak
WT-7131 Tiered cursors should return error if configured with zero tiers
WT-7137 Update assert to consider deleted HS values when checking for duplicate inserts
WT-7138 Do not perform fast truncate on pages with prepared updates
WT-7159 Always write on-disk update as a full update to history store

4.4.3 Changelog

Sharding

SERVER-48261 Unblacklist auth tests that use the 'mixedShardTest' helper
SERVER-48571 Write operation might invariant if a target error and a response error is received
SERVER-51834 Race in moveChunk tests
SERVER-52686 Blacklist transactions_causal_consistency.js test from the sharding_csrs_continuous_config_stepdown
SERVER-53029 Port the changes for SERVER-52955 to later branches

Replication

SERVER-33747 Arbiter tries to start data replication if cannot find itself in config after restart
SERVER-49159 Return NotPrimaryOrSecondary if currentTime is uninitialized in waitForReadConcernImpl
SERVER-49187 Make ReplSetTest .stepUp() robust to election failures.
SERVER-50049 assert.soonNoExcept() should not access TestData.traceExceptions for non-resmoke tests.
SERVER-50416 Change notMasterLegacyUnacknowledgedWrites to notPrimaryLegacyUnacknowledgedWrites in serverStatus
SERVER-50417 Change notMasterUnacknowledgedWrites to notPrimaryUnacknowledgedWrites in serverStatus
SERVER-50901 RollbackTest should wait for secondaries before doing data consistency checks
SERVER-51261 Rename hangWaitingForIsMasterResponseOnStandalone to hangWaitingForHelloResponseOnStandalone
SERVER-51262 Rename skipCheckingForNotMasterInCommandDispatch to skipCheckingForHelloInCommandDispatch
SERVER-51333 setFeatureCompatibilityVersion should fail when downgrading from fCV 4.4 to fCV 4.2 with long collection names present
SERVER-52560 oplog_writes_only_permitted_on_standalone.js must wait for insert to be in stable checkpoint
SERVER-52680 Removed node on startup stuck in STARTUP2 after being re-added into the replica set
SERVER-52744 rollback node's lastApplied > sync source's lastApplied in rollback_after_enabling_majority_reads.js
SERVER-53197 Awaitable hello/isMaster appears in slow query log, part 2

Query

SERVER-32960 $mod has inconsistent rounding/truncation behavior
SERVER-40361 Reduce memory footprint of plan cache entries
SERVER-48529 Delete unused PlanCache::feedback() mechanism
SERVER-49744 Per-document scoring metadata for $search
SERVER-49810 Stable result comparison for facet/use_cases.js
SERVER-52589 Index key consistency check during FETCH may fail in certain cases

Aggregation

SERVER-33966 redundant $sort in aggregation prevents best $limit $sort consolidation

Storage

SERVER-50502 The lock manager dump logv2 message needs logv2::LogTruncation::Disabled set so that lock dumps are not truncated
SERVER-51122 [v4.4] The snapshot window code must use TestingProctor consistently and not getTestCommandsEnabled
SERVER-51858 Investigate queryable issue on 4.0.20
SERVER-52950 recoverOplogAsStandalone mode must not start oplog truncater thread

Operations

SERVER-48221 Shut down ftdc after storage engine
SERVER-51603 add log message for failing validation via exception path
SERVER-51652 add better error handling for validate's use of KeyString
SERVER-51757 Collect /proc/vmstat numa_pages_migrated statistics in FTDC
SERVER-51829 always show index-level corruption reasons in validate output

Build and Packaging

SERVER-41262 Decouple compile_all from compile_all_run_unittests_TG to reduce makespan
SERVER-52580 Windows mh artifacts missing from 4.4 branch
SERVER-52891 Run PPC builds less frequently

Internals

SERVER-47863 Initial Sync Progress Metrics
SERVER-49232 Confusing log message when fail point is activated
SERVER-50267 Set output limit for 'rawMongoProgramOutput()'
SERVER-50271 Remove --logv2 from shell
SERVER-50445 Return the value as double when NumberLong subtraction overflows in ExpressionSubtract
SERVER-50547 Explore aggregation pipeline length limit
SERVER-51057 Test that getMore metrics are incremented in server_status_metrics.js
SERVER-51164 Remove non-DSI Microbenchmarks
SERVER-51405 Disable some concurrency suites for ephemeralForTest on v4.4
SERVER-51418 Resolve race condition in StepdownShouldInterruptConfigWrite
SERVER-51454 operationProfiling.filter config option rejects agg expressions
SERVER-51526 Hybrid index builds can miss writes and crash in the event of a well-timed WriteConflictException
SERVER-51715 Wrap timestamps with tojson() in log lines in optime.js
SERVER-51718 Disallow sparse, hashed indexes from being considered for answering $exists: false queries.
SERVER-51733 config server in a docker container fails to start up with authentication
SERVER-51793 Speed up compile tasks generated by burn_in_tags by running them on rhel62-large
SERVER-51796 Missing comma in "Restoring orphaned data file" (22334) log message parameters
SERVER-51797 Add task_path_suffix to evergreen.yml
SERVER-51818 add name to invariant message in Mutex destructor
SERVER-52530 Mongo v.4.4.1 crash - UnknownError -31803: WT_NOTFOUND
SERVER-52586 Disable refine_shard_key_transaction_stress task in sys-perf
SERVER-52625 linkbenches write to conventional location
SERVER-52646 Validate and possibly fix edge cases in regex rewrite rules for userToDNMapping
SERVER-52654 new signing keys not generated by the monitoring-keys-for-HMAC thread
SERVER-52666 ycsb is a module and writes to a conventional location
SERVER-52740 Introduce rhel62-medium distro for non compile tasks with large memory footprint
SERVER-52746 Ensure tailable cursor in find_cmd.js is invalidated
SERVER-52775 Fix sys-perf module issues
SERVER-52806 deb install files assume systemd
SERVER-52817 Update YCSB version in sys-perf.yml modules
SERVER-52824 Support AWS roles with paths
SERVER-52834 Migrate sys-perf and perf tasks to use the new run_workload DSI command
SERVER-52929 Correctly handle compound indexes with 32 keys
SERVER-52969 Disable Powercyle on non-master branches
SERVER-52975 Fix use of 'onRollback' callback for collection validator options in 'collection_impl.cpp'
SERVER-53017 replSetGetStatus remainingInitialSyncEstimatedMillis always 0
SERVER-53058 Better account of CleanEveryN runtime when setting dynamic timeouts
SERVER-53068 Use 10gen/linkbench2 instead of mdcallag/linkbench for system perf
SERVER-53196 Fail to generate tasks if a large distro is specified but not available
SERVER-53314 Generated tasks can specify a null distro
WT-4780 Enable assertion that commit timestamp is newer than all readers
WT-6449 Hang analyzer for WT Evergreen tests
WT-6563 Create a reproducer for invalid modification application
WT-6678 Remove Huffman Encoding support for Keys
WT-6693 Add compatibility testing for imported objects
WT-6706 Add table import repair functionality
WT-6713 Remove transaction support from custom data sources
WT-6722 Review function names in history store module
WT-6750 Assert to ensure no duplicate entries in the history store
WT-6751 Assert if new value is the same as old value for a history store update
WT-6752 Assert history store will not have any uncommitted updates
WT-6753 Assert only stop time pair of history store update can be modified.
WT-6816 Design write gen scheme to allow dhandles with active history to get closed/re-opened
WT-6824 Fix OSX python test errors related to UTF encoding
WT-6828 Fix doc link in README
WT-6830 Encode bytes before concatenating with string
WT-6835 Add API to allow consolidating incremental backup info
WT-6836 Handle the last key in the shadow table being removed by rollback to stable in timestamp abort
WT-6839 Add API to query existing incremental backup IDs
WT-6842 Add example showing using src_id only
WT-6844 Make force stop durable
WT-6845 Set session btree to HS when operating on history store
WT-6857 Define a new cursor for the history store access.
WT-6858 Implement insert method for the history store cursor
WT-6859 Implement search_near method for the history store cursor
WT-6860 Add relevant history store statistics to data handles
WT-6867 Documentation: create model subpages for architecture guide
WT-6868 Don't cache history store cursor for operations on metadata
WT-6869 Assert tree walk never return the start ref
WT-6870 Rename history store statistic to better describe its use case.
WT-6872 Replace the yield instructions with an ISB
WT-6875 Remove legacy import invocation
WT-6882 Files created during incremental backup should be copied in full
WT-6883 Redo change for breaking up backup ranges and fix for EOF
WT-6894 Implement history store cursor prev and next methods
WT-6895 Implement HS cursor update method
WT-6896 Initial implementation of hs cursor remove
WT-6916 Create stub subpages for architecture guide
WT-6922 Add random consolidate testing to incr_backup
WT-6925 Fix incorrect comment
WT-6934 Fix __wt_hs_upd_find wrongly returns WT_NOTFOUND
WT-6957 Reposition the cursor if __wt_hs_modify return WT_RESTART
WT-6958 Fix history store cursor position after operations
WT-6961 RTS no stable timestamp
WT-6986 Add UndoDB support to format.sh

4.4.2 Changelog

Security

SERVER-45938 Allow matching O/OU/DC in client x509 cert if clusterMode:keyFile
SERVER-47964 Add OCSP Sharding tests
SERVER-49826 Enable OCSP Stapling in RHEL / Centos 7.6 variants
SERVER-50065 Add OCSP tests for Certificate Rotation
SERVER-50463 Make PooledLDAPConnection::refresh take self-ownership

Sharding

SERVER-36739 Use the mongos_manual_intervention_action hook in concurrency stepdown suites
SERVER-47616 Improve error when logical sessions cannot have more than one user authenticated on a single connection
SERVER-48504 Combination of StaleShardVersion and ShardNotFound exception make the ChunkManagerTargeter crash
SERVER-48566 Shard loader in primary nodes blindly read the version of config.cache.collections
SERVER-48654 TransactionCoordinatorMetricsTest should install mock tick source before starting WaitForMajorityService
SERVER-48699 MaxTimeMS may expire in range_deleter_interacts_correctly_with_refine_shard_key.js test before _configsvrMoveChunk command started
SERVER-49019 refineShardKey can hit getLastError invariant during stepdown
SERVER-50451 range_deleter_shutdown_and_failover_during_set_fcv.js should retry setFCV against mongos until success to handle slow elections
SERVER-50470 Make persistParticipantsList convert TransactionCoordinatorReachedAbortDecision to NoSuchTransaction
SERVER-50545 Retry on ConflictingOperationInProgress in index_operations_abort_concurrent_outgoing_migrations.js
SERVER-50750 Refining shard key to include nested field causes "Error refreshing cached collection" on shard primaries
SERVER-50795 Extracting forceJumbo from docs in config.migrations in MigrationType::fromBSON can throw
SERVER-50900 Disable PeriodicShardedIndexConsistencyChecker for cursor_valid_after_shard_stepdown.js
SERVER-51673 Fix test case in transaction_coordinator_test to shut down AsyncWorkScheduler before attempting to persist decision

Replication

SERVER-46930 AutoGetOplog doesn't acquire collection IX lock correctly for non-document-locking engines
SERVER-48600 RefineCollectionShardKey does not check for transaction write concern errors
SERVER-48928 Allow primary-elect to complete drain mode even if it is stepping down unconditionally
SERVER-49462 Wait for secondaries to be ready in ReplSetTest.checkOplogs
SERVER-49730 Replace usages of waitForDrainFinish
SERVER-49986 Convert isMaster command to hello and add aliases
SERVER-49987 Rename response fields if “hello” is sent on mongod
SERVER-49988 Rename response fields if "hello" is sent on mongos
SERVER-49989 Add db.hello() shell helper
SERVER-50083 reconfig kill primary and stepdown passthroughs should disable election handoff
SERVER-50097 inaccurate exhaustIsMasterMetrics if an isMaster command alias is used
SERVER-50103 DBClientCursor doesn't set a socket timeout when using a side connection to send the kill cursor request
SERVER-50116 Forbid oplog writes when replication is enabled
SERVER-50320 Fix cancellation races in initial syncer
SERVER-50405 Alias isMaster in mongocryptd and attach appropriate response field
SERVER-50407 Alias isMaster in mongotmock and attach appropriate response field
SERVER-50408 Change NotMaster ErrorCode name to NotWritablePrimary
SERVER-50409 Change NotMasterNoSlaveOk ErrorCode to NotPrimaryNoSecondaryOk
SERVER-50410 Change NotMasterOrSecondary ErrorCode name to NotPrimaryOrSecondary
SERVER-50411 Change NoConfigMaster ErrorCode name to NoConfigPrimary
SERVER-50415 Rename waitInIsMaster failpoint to waitInHello
SERVER-50418 Add exhaustHello to serverStatus
SERVER-50447 fix ticket dependency in backports_required_for_multiversion_tests.yml for ismaster.js
SERVER-50527 Change NotMasterError category to NotPrimaryError
SERVER-50607 Must hold mutex when calling _checkForShutdownAndConvertStatus_inlock
SERVER-50626 Race in read_concern_majority_getmore_secondaries.js
SERVER-50640 listCommands should return "isMaster" alias in addition to "hello" command name
SERVER-50869 Background sync may erroneously set applied-through during step-up
SERVER-51047 standalone_replication_recovery_relaxes_index_constaints.js should not run in replica_sets_multiversion in 4.4
SERVER-51163 Mark nodes returning InvalidReplicaSetConfig in heartbeats as down
SERVER-51259 Rename waitForIsMasterResponse to waitForHelloResponse
SERVER-51260 Rename hangWhileWaitingForIsMasterResponse to hangWhileWaitingForHelloResponse
SERVER-51597 Don't try to cleanly shut down initial syncer when config changes
SERVER-51726 Maintain status code compatibility when main executor is shut down

Query

SERVER-47469 applyOps does not take exclusive lock for views operation
SERVER-48128 mapreduce and aggregation with output don't work on rs to cluster upgrade
SERVER-48617 Concurrent 'createIndexes' can block all write operations on a primary and standalone by exhausting write tickets.
SERVER-50028 Coverity analysis defect 114771: Dereference after null check
SERVER-50029 Coverity analysis defect 115663: Uninitialized scalar variable
SERVER-50291 Add query knob to enumerate $or children in a different order
SERVER-51120 Find queries with SORT_MERGE incorrectly sort the results when the collation is specified
SERVER-51853 Always initialize the numInserted out-parameter in AbstractIndexAccessMethod::insertKeys

Write Operations

SERVER-44586 add metrics to serverStatus to track type of update command
SERVER-49154 Add a regression test to ensure setting fCV to 4.2 disables collection/index creation

Aggregation

SERVER-30405 add expression to generate a random number
SERVER-40317 $facet execution has no limit on how much memory it can consume
SERVER-48390 group with $accumulator complains memory exceeds 100MBs on smaller than 96MBs collection
SERVER-48523 Unconditionally check the first entry in the oplog when attempting to resume a change stream
SERVER-49469 explain executionStats for $unionWith incorrectly shows COLLSCAN for inner pipeline

Catalog

SERVER-50030 Coverity analysis defect 115212: Wrong operator used

Storage

SERVER-43664 Speedup WiredTiger storage engine startup for many tables by optimizing WiredTigerUtil::setTableLogging()
SERVER-47681 Background validation uses the kNoOverlap read source instead of kAllDurableSnapshot to prevent us from having to take the PBWM lock on secondaries
SERVER-47803 Move the database level profile setting from Database into CollectionCatalog
SERVER-47812 Secondaries persist wildcard multikeypaths out of order
SERVER-47959 Retry JournalFlusher oplog reads on WriteConflictExceptions caused by concurrent {full:true} validate command on the oplog collection
SERVER-48021 Add WT debug table logging mode to *kill_(primary|secondary)* tests
SERVER-48154 ident dropper should periodically yield Global IS lock
SERVER-48245 index drop allowed on drop-pending collection
SERVER-49776 Forward port MDB <-> WT versioning table from 4.2 to 4.4 and master, please
SERVER-50045 JournalFlusher can interrupt write concern with ShutdownInProgress during rollback
SERVER-50586 Collection validation should append the collection's namespace to the output before any exceptions can be thrown
SERVER-51302 Override read timestamp check for refreshTransaction

Operations

SERVER-26726 Check number of arguments for createIndex() and throw error if more than two arguments
SERVER-46189 shell hang with message "Missing ssl modes with a single replica set is disallowed
SERVER-48244 Shell should not hard-code the allowed explain levels and let the server reject it instead
SERVER-49320 No error message produced if log file can't be created
SERVER-50270 shell should require a password for AWS auth
SERVER-50491 Frequent schema changes due to freeStorageSize limit FTDC retention

Build and Packaging

SERVER-23668 scons abbreviated options do not work properly
SERVER-43903 All compile tasks should upload the config log and the cache log
SERVER-47355 Hardcoded path of dist-test/bin must not be included in aws_e2e_ecs.js
SERVER-47943 Explicitly error if ICECC or CCACHE are specified but fail to load
SERVER-48282 Platform Support: Add Community & Enterprise RHEL 8 ARM
SERVER-50016 Fail on missing variable customization files
SERVER-50091 Enable SCons cache for ARM64 builders
SERVER-50125 UBSAN with ccache doesn't always respect -fsanitize-blacklist options
SERVER-50363 Promote --build-tools=next to stable
SERVER-50648 RHEL 8.2 ARM builder's publish_packages task should not run on an ARM host.
SERVER-50674 Darwin --separate-debug tool should not strip with the x flag

Internals

SERVER-34484 IDL targets don't work right on external build paths.
SERVER-35649 Nodes removed due to isSelf failure should re-attempt to find themselves
SERVER-38289 Teach SCons about .idl files
SERVER-39562 Repair should handle duplicate unique index keys
SERVER-43491 Specify that jstest only guarantees consistent behavior against mongod (not mongos)
SERVER-45626 Consistent Oplog Locking Rules
SERVER-45992 InMemory engine startupwarnings confusing
SERVER-46275 Add support for ECDSA w/OCSP to cert gen tool
SERVER-46321 Update man pages
SERVER-46625 Improve diagnostics when mongocryptd requests are sent to non-mongocryptd daemon
SERVER-46798 remove VersionInfoInterface::isSameMajorVersion
SERVER-47375 Complete TODO listed in SERVER-45798
SERVER-47827 Request for a local burn_in_tests.py that locally runs all tests changed since master, including those committed in the local branch
SERVER-48030 Fix deadlock with GetShardMap and old RSM
SERVER-48067 Reduce memory consumption for unique index builds with large numbers of non-unique keys
SERVER-48170 Multiversion tests assume primary stability when using upgradeCluster() with 2-node replica set shards
SERVER-48324 Expose parameter to include tcmalloc verbose statistics in ftdc
SERVER-48334 Index builds can fail in debug builds with unhandled WriteConflictException
SERVER-48410 Signed integer overflow fix for datetime library
SERVER-48452 Internal readers should default to reading without a timestamp
SERVER-48474 Add $sampleRate match expression
SERVER-48705 resmoke.py sending SIGABRT to take core dumps on fixture teardown may overwrite core files from hang analyzer
SERVER-48742 Log whenever profiler settings are changed via setProfilingLevel
SERVER-48884 Test Proctor Initializer has incorrect prereqs
SERVER-48946 Remove the Biggie evergreen variant in the v4.4 branch
SERVER-48949 missed logv2 cleanup in snapshot_window_util.cpp in 4.4
SERVER-49102 Accept a filter expression as an alternative to slowMS/sampleRate
SERVER-49165 endSessions command in Client.Disconnect causes an authorization failure for an unauthed connection on a host that requires authentication
SERVER-49396 Only activate skipWriteConflictRetries failpoint for user connections
SERVER-49402 Misleading error message when connecting to Data Lake
SERVER-49507 Reduce memory consumption in startup repair when rebuilding unique indexes with a large number of duplicate records
SERVER-49766 Indexed and non-indexed collections return different results for null query
SERVER-49857 ASAN Ubuntu 18.04 build variant did not symbolize its output
SERVER-49926 [4.4] collMod should not accept "recordPreImages: false" option in fCV 4.2
SERVER-49957 Read out of bounds in getPrevAndNextUUIDs
SERVER-50010 Mongodb build should have specific ninja REGENERATE rule
SERVER-50051 Make jstests/multiversion/hashed_index_bad_keys_cleanup.js more robust
SERVER-50072 Check _isWindows() when initializing MongoRunner.EXIT_ABORT
SERVER-50123 Record number of physical cores on all platforms
SERVER-50134 Run microbenchmarks tests through DSI
SERVER-50148 Fix use-after-move in MultiIndexBlock
SERVER-50242 slow query message seen in mongos for ismaster
SERVER-50246 $unionWith explain loses information from any stages in sub-pipeline which get absorbed into cursor stage
SERVER-50249 Upgrade via package manager from 4.2.8 to 4.4.0
SERVER-50326 Restrict sharding in agg_out.js workload to a single thread
SERVER-50365 Stuck with long-running transactions that can't be timed out
SERVER-50376 Ninja next does not see compiler changes
SERVER-50379 Reduce frequency of ! and * builders on 4.4
SERVER-50394 mongod audit log attributes DDL operations to the __system user in a sharded environment
SERVER-50401 Handle patches applied as commits
SERVER-50490 Reduce log severity of SERVER RESTARTED from Warning(-2) back to Log(0)
SERVER-50530 archive-mh targets not building on windows
SERVER-50605 Add {logMessage: "msg"} test-only command
SERVER-50635 Index consistency check at end of sharding tests isn't robust to ShardNotFound
SERVER-50690 Add option to specify bind ip to ocsp mock
SERVER-50736 Make OpenSSL explicitly accept SNIs presented in ClientHello
SERVER-50818 Coverity analysis defect 114987: Wrapper object use after free
SERVER-50852 BF Day - Hang analyzer's "interesting processes" pattern for C++ unit tests doesn't match db_unittests
SERVER-50866 systemd unit mongod.service should use "After=network-online.target"
SERVER-50895 $unionWith cached pipeline for explain is leaked if execution does not require sub-pipeline
SERVER-50913 Teardown config server last in sharded cluster
SERVER-50955 oplog_rollover.js pauses the OplogCapMaintainerThread until truncation is needed
SERVER-51041 Throttle starting transactions for secondary reads
SERVER-51045 [v4.4] Update blocklist pending 4.2 backport for SERVER-46625
SERVER-51097 unittests ran for more than an hour, stalling the commit queue
SERVER-51106 Make the isMaster command a derived class of hello
SERVER-51194 Make evergreen tasks for build-tools next
SERVER-51220 Handle auditing attribution in indirect drops
SERVER-51242 Disable canaries in microbenchmarks DSI tasks
SERVER-51303 Lookup stage followed by $match on type uses wrong field in matching condition
SERVER-51384 Enable and Fix Compile for Drivers Nightly Testing 4.4
SERVER-51467 Set waitUntilStable to true when upgrading clusters in change_streams_multiversion_cluster.js
SERVER-51604 Evergreen compile task should fail if debug symbols upload fails
SERVER-51607 Upgrade Twisted dependency to at least twisted-19.7.0
SERVER-51685 Fix download of MongoDB 4.4.1 for multiversion testing on the 4.4 branch
SERVER-51771 libunwind fails to build with GCC >=10.2
SERVER-52617 Cache the pointer to the oplog collection before running recoverToOplogTimestamp
SERVER-52696 Add sysbench to system_perf.yml modules
SERVER-52697 Add tpcc to system_perf.yml modules
WT-4310 Add option to not abort in diagnostic builds on data corruption
WT-5144 Use wt_clock instead of wt_epoch in perf programs
WT-5585 Remove cache_overflow config option
WT-5645 Add Evergreen test that cycles through known failure test/format configs
WT-5691 Handle scenario where imported files have write generations ahead of current DB
WT-5693 Enable test_wt4105_large_doc_small_upd
WT-6000 Enhance incremental backup testing in format to support restart
WT-6006 Revert test binaries to 10 in checkpoint-stress-test
WT-6027 Fix docs spelling errors and warnings
WT-6181 Have Python Evergreen tests print standard output on failure
WT-6263 Reenable history store verification
WT-6277 Compatibility tests verify failure in timestamp validation
WT-6322 Split full compatibility tests into smaller groups
WT-6390 Extend compact02 timeout from 8 => 10 minutes
WT-6404 Add timing stress that delays checkpoint after it calls __wt_txn_begin
WT-6410 Remove WT_SESSION.rebalance
WT-6427 Always set stable timestamp when setting oldest timestamp
WT-6446 Rename *.i files into *_inline.h files
WT-6451 Do not evict clean metadata pages if needed for historic reads
WT-6463 History store operations should honor cache size
WT-6467 Fix history store verification
WT-6471 Avoid the error message for non-existent clang-format binary
WT-6472 Update timestamp_abort test cache configuration
WT-6478 Cursor cache statistics not getting incremented
WT-6490 Acquire snapshot for eviction threads
WT-6505 Add debugging for missing file failure
WT-6507 Exit cache eviction worker after our operation has timed out
WT-6526 Fix assertion failure when opening DB in readonly mode after unclean shutdown
WT-6532 Consider update structure overhead in split length calculation
WT-6544 Onpage value not appended to the tombstone restored from the data or history store
WT-6546 Update fast truncate to use newest start durable ts
WT-6556 Fix internal sessions to use internal session close function than public API to avoid memory leak
WT-6559 Use the session ID from the new session to determine statistics bucket
WT-6560 Fix usage of global salvage in WT utility
WT-6561 Provide MongoDB configuration in the wt utility usage output
WT-6569 Squash the prepared updates into a single update before writing it to data store
WT-6570 RTS to remove the left over updates in the history store without stop timestamp
WT-6571 Lseek cannot use error_sys_check because it does not return an int
WT-6577 History store dump outputs confusing time window
WT-6581 Fix class name in test_hs15
WT-6583 Only clear the read timestamp when releasing the transaction
WT-6586 Tombstone inserted to history store should also be flagged as WT_UPDATE_HS
WT-6589 Fix disabled cursor cache python tests
WT-6591 Stop checkpoint thread before closing connection in Python tests
WT-6592 Avoid marking errors for skipped Python tests due to not-built extension
WT-6593 Retry conflicting operations in test_rollback_to_stable10
WT-6596 Increase cache for timestamp abort test and separate key spaces for all abort tests
WT-6598 Add new API allowing changing dhandle hash bucket size
WT-6602 Allow operation timeout ms to be passed to commit and rollback
WT-6604 Fix typo in the comment describing WT_CELL structure
WT-6610 Fix incremental backup checkpoint parsing to handle upgrades
WT-6612 Increase cache size in test_prepare08 to fix rollback error due to cache pressure
WT-6613 Add python test for early_load flag
WT-6615 Initialize last_upd where it is actually used
WT-6616 Set the oldest timestamp of the checkpoint when it is finished
WT-6619 Eliminate possibility of infinite loop in test_cursor13.py
WT-6624 Use transaction snapshot for applications performing eviction
WT-6625 Remove outdated TODO
WT-6629 Support index tables in metadata:create cursors
WT-6635 Disable mix and column filetype test
WT-6640 Coverity: Failure to restore saved dhandle
WT-6641 Coverity: Unused value
WT-6643 Explicitly set the 64-bit uint part of the LSN for atomic assignment
WT-6649 Coverity: Unintentional integer overflow in __wt_rec_need_split
WT-6650 Coverity: Null dereferences in session::close
WT-6653 Rollback/Restart txn before retry in RTS test
WT-6654 Clean up test_backup15.py
WT-6657 Fix history store panic when inserting an update without timestamp
WT-6666 Start op timer when we configure it in rollback and commit
WT-6670 Fix uninitialized buffer
WT-6671 Save the checkpoint snapshot that is used to take checkpoint in the metadata
WT-6674 Remove Async API code and documentation
WT-6675 Remove WiredTiger Java language API and documentation
WT-6680 Temporarily disable history store verification
WT-6683 Fix logically dead code
WT-6685 Add import configuration option to WT_SESSION::create
WT-6689 Add support for file import when the exported configuration is provided
WT-6690 Add support for table import when the exported configuration is provided
WT-6691 Add file import repair functionality
WT-6692 Handle scenario where imported timestamps are newer than current DB's timestamps
WT-6708 Repurpose oldest start txn to be newest txn in the aggregated time window
WT-6712 Allow RTS to operate when stable timestamp is not set
WT-6720 Add new hs open() and close() methods
WT-6725 Skip checking visibility for updates restored from disk
WT-6731 Prevent WT_RESTART from being returned to API calls
WT-6732 Fix post-task command noises in Evergreen task logs
WT-6734 Add missing brace to Swig Java interface
WT-6736 Add statistics to track evictions in parallel with checkpoint
WT-6741 Add check for supported data source on import
WT-6746 Save base write gen in metadata during checkpoint
WT-6756 Rearrange top level of documentation
WT-6761 Ignore stdout for test_rollback_to_stable10
WT-6762 Use stats instead of files to check consumption
WT-6763 Fix freeing update on the chain when insert fail after inserting to the update chain
WT-6764 Wait for stable timestamp to move before publishing checkpoint information in timestamp abort test
WT-6765 Add more debugging and earlier detection of missing file
WT-6767 Adding a new read timestamp config that allows it to be set older than the oldest timestamp
WT-6783 Generate unique keys for table to ensure log records
WT-6792 Update compatibility tests to test against mongodb-5.0 branch
WT-6793 Organize code statistics Evergreen tasks
WT-6797 Ensure minimum entries before short-circuiting
WT-6798 Utilize Arm LSE atomics and the correct strength barriers
WT-6806 Back off aggressive abort in random_directio
WT-6808 Documentation: add top level architecture picture
WT-6809 Avoid deadlock by moving hs cursor caching earlier
WT-6811 Allow older readers to read behind a mixed-mode operation
WT-6812 Fix "out-of-order fixup" potentially corrupting historical values
WT-6813 Fix memory leak in schema_create
WT-6822 Use the correct python for all tests and set up env for the split stress test
WT-6827 Run scons check examples in sequence not parallel

4.4.1 Changelog

Security

SERVER-47733 SymmetricEncryptorWindows shouldn't pad when update is called
SERVER-49339 Rename ocspValidationRefreshPeriodSecs to ocspStaplingRefreshPeriodSecs
SERVER-49383 Assert that Host header is present in OCSP responder

Sharding

SERVER-43938 Make auth_sharding_cmd_metadata.js start shards as replica sets
SERVER-46811 multi=true updates can modify the shard key of orphan documents and cause them to become owned
SERVER-47753 Enable random_moveChunk_index_operations.js in stepdown concurrency suites
SERVER-47900 Disable checkOrphansDeleted helper in 4.4 multiversion testing
SERVER-48066 Don't allow update shard key concurrency test to update shard key to same value
SERVER-48096 PeriodicShardedIndexConsistencyChecker thread on jstests can cause unintended shard refreshes
SERVER-48229 Shutdown PeriodicShardedIndexConsistencyChecker after ReplicationCoordinator so no thread will try to pause the job after it has stopped
SERVER-48341 Remove requires_fcv_46 from tests blacklisted under SERVER-48307 after backporting SERVER-48307 to 4.4.
SERVER-48365 Migration manager recovery should handle a refined shard key
SERVER-48531 3 way deadlock can happen between chunk splitter, prepared transactions and stepdown thread.
SERVER-48556 random_moveChunk_broadcast_delete_transaction.js should treat an stepdown error while waiting for a range deletion task to complete as an acceptable moveChunk error
SERVER-48601 ChunkSplitter should use the same chunk bounds for splitVector and splitChunk
SERVER-48641 Deadlock due to the MigrationDestinationManager waiting for write concern with the session checked-out
SERVER-48679 flushRoutingTableCacheUpdates should block on critical section with kWrite, not kRead
SERVER-48689 MigrationDestinationManager waits for thread to join with session checked out
SERVER-48699 MaxTimeMS may expire in range_deleter_interacts_correctly_with_refine_shard_key.js test before _configsvrMoveChunk command started
SERVER-48929 The moveChunk helper needs to ignore LockTimeout errors
SERVER-49044 Make AsyncRequestSender not retry remote command requests with startTransaction=true
SERVER-49085 Add MovePrimaryInProgress error code
SERVER-49086 Fail with MovePrimaryInProgress error in insert, update and delete commands
SERVER-49087 Add support for testing MovePrimaryInProgress
SERVER-49088 Fail with MovePrimaryInProgress on findAndModify command
SERVER-49089 Fail with MovePrimaryInProgress on mapReduce command
SERVER-49091 Fail with MovePrimaryInProgress error in create, collMod, drop, and renameCollection commands
SERVER-49092 Fail with MovePrimaryInProgress error in createIndexes and dropIndexes commands
SERVER-49311 PeriodicShardedIndexConsistencyChecker might cause failures on stale_mongos_and_restarted_shards_agree_on_shard_version.js
SERVER-49433 Stop incrementing the collection major version on chunk splits
SERVER-49452 Fail with MovePrimaryInProgress error in collMod command
SERVER-49546 setFCV to 4.4 should insert range deletion tasks in batches rather than one at a time
SERVER-49699 waitForCurOpByFailPoint shouldn't ignore filter parameter in 4.4
SERVER-49715 Check for interrupt while finding unowned ranges on setFCV to 4.4
SERVER-49734 The call to Balancer::initiateBalancer() on step up should be asynchronous
SERVER-49765 Fail with MovePrimaryInProgress for dropIndexes command
SERVER-49809 View definition can be lost if the view is created during movePrimary

Replication

SERVER-39621 Disabled chaining should enforce sync source change when the primary steps down even if the oplog fetcher isn't killed on sync source
SERVER-47263 Inaccurate log message when losing dry run election
SERVER-47612 Elections not robust in remove_newly_added_field_after_finishing_initial_sync.js
SERVER-47645 Must invalidate all sessions on step down
SERVER-47849 Add more logging to shutdownTask
SERVER-48525 Forbid dropping config.transactions when there are prepared transactions
SERVER-48712 Race in write_concern_after_stepdown.js
SERVER-48776 Remove config version and term check during the reconfig quorum check
SERVER-48967 Prevent replicated writes on empty namespaces on secondaries
SERVER-48975 Increase isSelf logging verbosity
SERVER-48979 Race between config propagation and election in change_stream_stepdown.js
SERVER-49676 Coverity analysis defect 115809: Uninitialized scalar field
SERVER-49683 catchup_takeover_two_nodes_ahead.js should use initiateWithHighElectionTimeout() to prevent spurious elections
SERVER-49924 Forward-port SERVER-49527 to master branch
SERVER-49990 Alias setSlaveOk() and getSlaveOk() shell helpers
SERVER-49991 Alias printSlaveReplicationInfo() shell helper
SERVER-50039 Timing error in dbadmin.js test
SERVER-50063 Oplog fetcher can return network errors or CallbackCanceled when shutting down
SERVER-50140 Initial sync cannot survive unclean restart of the sync source
SERVER-50325 Allow additional error code in no_writes_to_config_transactions_with_prepared_transaction.js

Query

SERVER-39392 Invariant in PlanStage::dispose always evaluates as true
SERVER-48442 Fix change_streams.js to test events in any order
SERVER-48950 Enhance explain for $search to expose stats from mongot
SERVER-48993 explodeForSort can produce incorrect query plan
SERVER-49010 Increase log verbosity in index_stepdown_after_init.js
SERVER-49389 Index build initialized message logged more often than expected
SERVER-49514 'index_abort_before_commit_signal.js' should check for the 'IndexBuildAborted' error code
SERVER-49530 fix final index build phase for oplog recovery as a standalone mode

Storage

SERVER-48658 The TTL monitor should not log at "E" level for QueryPlanKilled
SERVER-49415 create_new_indexes_with_conflict.js hangs intermittently due to unreliable log line checking
SERVER-49521 fix tests in core/txn to use write concern "majority" for createIndexes commands run before starting transactions
SERVER-49556 fix index build in fsm_workloads/indexed_insert_base.js index setup to work with multi-document transactions
SERVER-49949 Reconstructing prepared transactions containing multi-key writes crashes the initial syncing node.
SERVER-50137 MongoDB crashes with Invariant failure due to oplog entries generated in 3.4

Operations

SERVER-45260 shell helpers in shell_utils_launcher.cpp shouldn't use verify()
SERVER-47697 Make logger:: typedefs to logv2::LogSeverity, logv2::LogComponent, etc
SERVER-47698 LogSeverity constexpr
SERVER-47736 Bring LogSeverityLimiter from logger/ to logv2/

Build and Packaging

SERVER-45930 Make mongodb community depend on the tools in homebrew
SERVER-47138 MSI installer produces incorrect config file
SERVER-48041 Tell icecream about sanitizer blacklist files
SERVER-48443 Compilation errors with GCC and ICECC 1.2+
SERVER-48885 Pathsplit bug in build.ninja generated file with PATH components containing spaces
SERVER-48966 Ninja generator does not emit dependencies on template inputs
SERVER-49036 the compile_commands.json produced by ninja is incomplete.
SERVER-49395 Cannot run unittest suite locally (regression)
SERVER-49466 Introduce a --build-tools=next flag to subsume --ninja=next
SERVER-49493 Track SCons files for regeneration via a deps file
SERVER-49932 MSI build process obtains files via paths into the build directory
SERVER-50078 Compile bypass applied when it should not have

Internals

SERVER-25548 resmoke should not continue after a shell crash
SERVER-43490 Validate if we can perform TODO listed in SERVER-38686
SERVER-46726 Provide separate setParameter to disable diagnostic work
SERVER-46842 resmoke.py shouldn't run data consistency checks in stepdown suites if a process has crashed
SERVER-47518 mitigate dtor-order fiasco with a utility for defining static duration immortal objects
SERVER-47598 locally installed mongodbtoolchains can affect remote icecream builds
SERVER-47604 Don't log "Index build failed" if it continues in the background due to a stepDown
SERVER-47639 Fix race with async getHosts request and concurrent topology change
SERVER-47775 LOGV2_FATAL failed to print stack trace
SERVER-47892 DiagnosticInfo for latches doesn't integrate well with unit-tests which create and destroy ServiceContexts
SERVER-47933 logv2: detect attribute collisions
SERVER-48048 Use resmoke tag files for multiversion blacklisting
SERVER-48107 Retry replSetStepDown in rollback_test.js
SERVER-48178 Finding self in reconfig may be interrupted by closing connections due to rollback
SERVER-48204 Improve assertions in mirror_reads.js
SERVER-48339 Ensure operation is hung on failpoint in unionWith_current_op.js
SERVER-48506 Throw MaxTimeMSExpired instead of FailedToSatisfyReadPreference when RSM deadline is less than max
SERVER-48572 random_moveChunk_refine_collection_shard_key.js needs to ignore LockTimeout errors from moveChunk
SERVER-48709 signing key generator thread on config server not waken up as expected
SERVER-48901 Have a client observer destroy ClientOutOfLineExecutor
SERVER-48952 logv2 cleanup for src/mongo/util/stacktrace_posix.cpp
SERVER-48965 Make update_and_bulk_insert.js less heavy
SERVER-48982 Respond to heartbeats until reconfig thread finishes in StepdownShouldInterruptConfigWrite
SERVER-49007 Roundtrip registration ID in metrics response in mock_http_server.py
SERVER-49016 Ninja build reporting "no such file: /proc/cpuinfo"
SERVER-49026 pseudo_commands.js can kill operation with opId '1234' mistakenly
SERVER-49054 Server MSI should install Compass instead of Compass Community
SERVER-49090 Fail with MovePrimaryInProgress error in aggregate command
SERVER-49097 sys-perf builds differ from release builds
SERVER-49126 Allow NetworkInterfaceIntegrationTest to be an internalClient
SERVER-49335 publish_packages should use barque API key
SERVER-49404 Enforce additional checks in $arrayToObject
SERVER-49417 sessionId use in "connection accepted" server log
SERVER-49432 Avoid read-after-delete in ServiceExecutorSync shutdown
SERVER-49438 Allow memory.js tests to accept $where timeout interruption
SERVER-49457 Ninja mongod build failing with duplicate symbol linker error
SERVER-49476 Disable ldap_authz_bind on Ubuntu 18.04 and 20.04
SERVER-49523 'commit_quorum_does_not_hang_with_initial_sync.js' can fail if the primary can't see a majority of the replica set
SERVER-49690 Retry "CappedPositionLost" when searching for old oplog entries
SERVER-49693 Represent replicaSetPingTimeMillis in floating point
SERVER-49694 On a sharded cluster, nearest or hedged reads may not be routed to a near shard replica.
SERVER-49704 txn_being_applied_to_secondary_cannot_be_killed.js should not allow elections
SERVER-49716 "gather_failed_unittests" does not work on ubuntu1804-build
SERVER-49922 Make schema_validator_with_expr_variables.js less heavy
SERVER-49933 Put cedar auth info into sys-perf tasks
SERVER-50170 Fix server selection failure on mongos
SERVER-50173 [v4.4] Remove explode_for_sort_collation.js from backports list of test suite sharding_multiversion
SERVER-50178 Add logging to initial_sync_nodes_maintain_and_gossip_commit_point.js
SERVER-50183 Copy _awaitPrimaryAppliedSurpassesRollbackApplied function from RollbackTest to RollbackTestDeluxe
SERVER-50216 Adjust sys-perf frequencies
SERVER-50290 Enforce stronger limits on task splitting
SERVER-50308 Adjust debug log message when cleaning up failed cursor establishment
SERVER-50352 Add understanding of previous syntax for multiversion exclusions
SERVER-50362 Add resilience to repeat execution for multiversion tag generation
WT-5571 Evergreen loses compiler warnings, need way to add to CFLAGS
WT-5717 Reenable history store salvage test
WT-5945 Enable stricter performance for test_wt2853_perf
WT-5970 Update test_wt4333_handle_locks to use 1GB cache size
WT-6215 Clear backup block information on rename: Reverted
WT-6233 Add statistic to track the number of times we remove keys from the history store due to inserting 0 timestamped entries
WT-6274 SESSIONs shouldn't nest calls to get/release hs cursor
WT-6325 Fast truncate can lead to never resolved prepared operations
WT-6331 Set oldest timestamp on startup of WiredTiger
WT-6421 Avoid parsing metadata checkpoint for clean files
WT-6425 Turn off log archiving to avoid file copy race
WT-6440 Use onpage visibility check helpers in __wt_txn_update_check
WT-6466 Don't reset the WT_SESSION timers when HS cursors are closed
WT-6468 Discard a deleted page that is cleaned by a checkpoint
WT-6473 format configuration with tiny caches can result in empty objects
WT-6474 Configure the global RNG before doing any command-line or configuration file processing
WT-6479 Don't insert updates after the first globally visible update to the history store
WT-6492 Use WT_UPDATE_RESTORED_FROM_DS to determine if the onpage value is on the update chain or not
WT-6493 Retry processing update list if a prepared update is modified concurrently
WT-6499 Ignore evict priority for btrees that are dominating cache usage
WT-6511 cursor join: explicitly advance the iterator when finished with a clause
WT-6514 Fix description of eviction_updates_trigger in the documentation
WT-6517 Update test_txn13 to avoid getting a rollback error
WT-6519 Add testing coverage for mongodb-4.6 branch in compatibility test
WT-6527 When a thread cannot be allocated, return cleanly from WT API
WT-6528 Remove offensive terminology in WiredTiger API and source code
WT-6539 Fix backup and rename memory leak
WT-6543 Distinguish Evergreen artifacts links across restarts for testing tasks
WT-6551 Avoid a timing problem at the beginning of a test for log preallocation
WT-6552 Fix configure flags in evergreen.yml for failing PPC tests
WT-6578 Prevent reconciliation from looking past the on-disk value
WT-6611 Revert enhancement allowing rename and incremental backup
WT-6623 Set the connection level file ID in recovery file scan

Back

Downgrade 4.4 Sharded Cluster to 4.2

Release Notes for MongoDB 4.2

4.4 Changelog.leafygreen-ui-m0pgrr{-webkit-align-self:center;-ms-flex-item-align:center;align-self:center;padding:0 10px;visibility:hidden;}.leafygreen-ui-a30zj9{color:#889397;vertical-align:middle;margin-top:-2px;}.css-fmznk8{margin-top:-85px;position:absolute;padding-bottom:2px;}

4.4.26 Changelog

Sharding

Internals

4.4.25 Changelog

Operations

Internals

4.4.24 Changelog

Internals

4.4.23 Changelog

Sharding

Query

Internals

4.4.22 Changelog

Query

Internals

4.4.21 Changelog

Sharding

Query

Internals

4.4.20 Changelog

Sharding

Internals

4.4.19 Changelog

Sharding

Storage

Operations

Build and Packaging

Internals

4.4.18 Changelog

Query

Operations

Build and Packaging

Internals

4.4.17 Changelog

Sharding

Operations

Internals

4.4.16 Changelog

Sharding

Query

JavaScript

Operations

Build and Packaging

Internals

4.4.15 Changelog

Sharding

Query

Build and Packaging

Internals

4.4.14 Changelog

Sharding

TTL

Internals

4.4.13 Changelog

Sharding

Replication

Query

Storage

Internals

4.4.12 Changelog

Sharding

Internals

4.4.11 Changelog

Sharding

Replication

Query

Aggregation

Storage

Operations

Internals

4.4.10 Changelog

Security

Sharding

Replication

Query

Aggregation

Operations

Internals

4.4.9 Changelog

4.4 Changelog