6.3 Changelog

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6.3.2 Changelog
6.3.1 Changelog

Changes are listed here when a patch release is available.

6.3.2 Changelog

Sharding

SERVER-72146 Make chunk migrations metrics more accessible from Atlas
SERVER-74380 Router role retry loop should allow namespaces different from the one it was created for
SERVER-75481 Consider ideal data size when balancing
SERVER-76004 Remove incorrect sharding tassert in getOwnershipFilter function
SERVER-76178 Fix moveRange authorization requirements
SERVER-76394 Allow the setAllowMigrations refresh to be sent to all shards in a backportable way
SERVER-76536 Increase receiveChunkWaitForRangeDeleterTimeoutMS in concurrency suites

Query

SERVER-72224 Clustered collections with non-"simple" default collation miss documents when querying on _id using "simple" collation

Internals

SERVER-67105 $in queries do not use clustered index
SERVER-68670 Cache imbalanced collections for balancing
SERVER-69952 Filtering on dates outside of the 32 bit epoch range returns wrong results
SERVER-71009 Make sure the select chunks operation doesn't take too long
SERVER-71985 Automatically retry time series insert on DuplicateKey error
SERVER-72520 Decommission Microbenchmark performance tests that are running on CBI instances
SERVER-72686 Add support for $collStats agg stage on timeseries collection
SERVER-73734 Support evergreen nightly project in burn_in_tests.py
SERVER-73830 Retrieving alternate buckets for inserts not handling buckets pending direct writes
SERVER-73855 Update recipientForgetMigration error handling logic to properly handle CallbackCanceled
SERVER-73887 Allow untimestamped writes for the entirety of initial sync retry
SERVER-74122 add readtest.c to the asan denylist
SERVER-74368 Reduce log verbosity for virtual collection queries
SERVER-74469 Make the ShardingCatalogManager set the 'validAfter' field of a chunk when it is migrated
SERVER-74694 cleanupOrphaned command may fail with "Range deleter service not up error" on step up
SERVER-74871 Clean up Jepsen tests
SERVER-75082 Make balancer migrations throttling configurable
SERVER-75230 Package test fails on Ubuntu 16.04
SERVER-75269 Re-introduce Classic Engine build variant on the 6.3 branch
SERVER-75479 Use system python on macos for ssl tests
SERVER-75566 Disable powercycle on windws
SERVER-75601 Make serverStatus apiversion field more robust
SERVER-75626 Special handling for macosx venv
SERVER-75990 Tenant Migrations are not resilient to recipient failover
SERVER-76038 Remove FLE2 tests from sharded_retryable_writes_downgrade suite
SERVER-76102 handleRIDRangeScan() sets hasCompatibleCollation wrong in recursive cases
SERVER-76172 Fix BalancerChunkSelection unit test on slow build variants
SERVER-76274 Move microbenchmarks to their own task distro
SERVER-76321 Buffer overrun while deserializing compound group key spilled to disk in SBE hash agg implementation
SERVER-76331 Bump mongo-task-generator version to 0.7.5
SERVER-76457 Support storing BuildID to debug symbols mapping for sanitizer builds
SERVER-76498 Update push task to run on rhel8.7-small
SERVER-76519 MIgrate crypt_push task to Garasign
SERVER-76543 The mongod-dump-sessions gdb pretty printer does not work
SERVER-76549 Remove symbolization from macos variants
SERVER-76550 Balancer is unable to drain shards with big chunks
SERVER-76666 [v6.3, v7.0] Make buildscripts_test run on v6.3 branch
SERVER-76690 Special handling for PYTHONPATH when activate venv
SERVER-77018 Deadlock between dbStats and 2 index builds
SERVER-77380 Using --serverless flag disables oplog truncation
SERVER-77383 ".msi.sha256" files have incorrect shasum
SERVER-77527 mongodbtoolchain/v3 stdlib unsafe against self-moves
SERVER-78080 Use fully random bytes for 8 low-order bytes of OID value for time series bucket _id
SERVER-78122 [6.3] Address bucket OID collisions with buckets pending compression

6.3.1 Changelog

Sharding

SERVER-73229 Logical sessions cache refresh ignores write errors from updating session document, leading to cursors being killed early
SERVER-73877 Wait for shard to have a primary before doing a migration in prepare_transaction_then_migrate.js

Write Operations

SERVER-75517 illegal format of _id possible via upsert

Internals

SERVER-66927 Remove reference to silentFail from mongo repo
SERVER-71636 Explain executionStats does not work for $lookup on sharded collection
SERVER-73163 shard_split_shutdown_while_blocking_reads should handle exception in readThread
SERVER-73383 Defragmentation may start over right after finishing
SERVER-73482 $natural hint overrides sort on clustered collections
SERVER-73936 Clean up timeseries_direct_update.js and add logs
SERVER-73973 [test-only bug] Skip orphans checking in server_status_with_time_out_cursors.js
SERVER-74131 Multiplanning together with subplanning causes server crash in mapReduce queries
SERVER-74303 Add a sizeStorer call to the onRollback handler for dataSize and numRecords changes
SERVER-74684 Size storer not being flushed periodically
SERVER-74720 The default 'shardingStatistics' serverStatus section takes locks
SERVER-74895 Expect command errors in validation when querying $collStats, and improve the error message
SERVER-75066 Check for parent directory before writing to SCons cache
SERVER-75090 ftdc_connection_reuse.js -- test fails when poolConnUsageTimeMillis does not increase
SERVER-75147 Remove FLE2 tests from replset continuous stepdowns suite
SERVER-75239 [v6.3] Remove accidentally added tests from backports_required_for_multiversion_tests.yml
SERVER-75261 "listCollections" command fails with BSONObjectTooLarge error
SERVER-75277 TTL deleter attributes resource metrics across multiple databases
SERVER-75299 Reduce severity of BalancerStatsRegistry logs
SERVER-75366 Additional debug log lines in range deleter service
SERVER-75431 Get rid or fix best effort check for primary db on rename path in sharded clusters
SERVER-75501 Don't run Sys-perf fCV variants on stable branches
SERVER-75519 Split task sharded_collections_jscore_passthrough due to timeout
SERVER-75561 Report and log more detailed information when validate encounters multikey inconsistencies
SERVER-75639 Remove dedicated executor for moveChunk/moveRange commands
SERVER-75652 Migrate from notary client to garasign for push task
SERVER-75745 Only log record and index metadata associated with missing or extra index keys
SERVER-75795 Update aws_e2e_ec2.js for evergreen changes to AWS test identity
SERVER-76009 Fix stepdown behavior in read_ticket_exhaustion_with_stepdown test

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