4.1.0 — July 2026

https://docs.couchbase.com/sync-gateway/4.1/product-notes/release-notes.html

What's Changed

• CBG-4853: Cut release/4.0.0 and move main to 4.1 by @bbrks in #7784
• CBG-4862 force SendRev to check for errors by @torcolvin in #7762
• CI: Add manifest validation by @bbrks in #7787
• modify revs_limit API docs by @torcolvin in #7786
• Bump golang.org/x/net from 0.43.0 to 0.44.0 by @dependabot[bot] in #7756
• Cleanup jenkins scripts by @torcolvin in #7648
• Expand EditorConfig with IntelliJ directives and align with ruff/yamllint by @bbrks in #7790
• Reformat manifest XMLs according to EditorConfig by @bbrks in #7789
• Refresh LongRunningTest for faster -short test suite runs by @bbrks in #7791
• CBG-3594: Check if CORS config is actually empty before adding CORS response headers by @bbrks in #7792
• CBG-2318: Rename public channel const by @bbrks in #7793
• CBG-4866: delta sync for legacy rev mutations over ISGR will not send deltas by @gregns1 in #7780
• CBG-4799: allow active replicator tests to run in both v4 and < v4 protocol by @gregns1 in #7795
• Bump github.com/quasilyte/go-ruleguard/dsl from 0.3.22 to 0.3.23 by @dependabot[bot] in #7796
• Bump github.com/go-jose/go-jose/v4 from 4.1.1 to 4.1.3 by @dependabot[bot] in #7797
• Bump github.com/couchbase/gocb/v2 from 2.10.1 to 2.11.1 by @dependabot[bot] in #7769
• Run gopls modernize auto fix by @torcolvin in #7794
• CBG-4745 allow windows to be slow by @torcolvin in #7800
• CBG-4842: bump testify to 1.11.1 by @RIT3shSapata in #7799
• CBG-4907: fix for panic in CheckProposedVersion for legacy revision case by @gregns1 in #7802
• CBG-4894: Consider local/remote tombstones in the default conflict resolver for ISGR by @gregns1 in #7798
• CBG-4910: Add service type for wait until ready options by @RIT3shSapata in #7807
• CBG-4912 fix the RTE algorithm by @torcolvin in #7808
• CBG-4914 use standard rosmar SourceID when not using go test by @torcolvin in #7811
• CBG-4899: fix flaky test TestChangesFeedExitDisconnect by @RIT3shSapata in #7805
• Update github.com/shirou/gopsutil to v4 by @Juneezee in #7785
• CBG-4902: Fix Flaky Test TestBlipOneShotChangesSubscription by @RIT3shSapata in #7815
• Bump golang.org/x/net from 0.44.0 to 0.46.0 by @dependabot[bot] in #7818
• Bump github.com/coreos/go-oidc/v3 from 3.15.0 to 3.16.0 by @dependabot[bot] in #7821
• Make TestLogFormat actually asserts by @torcolvin in #7822
• CBG-4926 deflake topologytests by @torcolvin in #7824
• Bump golang.org/x/oauth2 from 0.30.0 to 0.32.0 by @dependabot[bot] in #7820
• Bump github.com/shirou/gopsutil/v4 from 4.25.8 to 4.25.9 by @dependabot[bot] in #7819
• auth test: refactor for better error by @torcolvin in #7814
• CBG-4677 restart db initialization if needed by @torcolvin in #7825
• CBG-4579: Add uint64 support to few metrics in sgw by @RIT3shSapata in #7828
• Remove RetryLoopCas since RetryLoop behaves identically by @torcolvin in #7823
• CBG-971: wait for checkpointer to fire by @gregns1 in #7830
• CBG-4942 obey db scope for CORS.LoginOrigin by @torcolvin in #7831
• CBG-4947 create 4.0.0.1 and 3.3.0.1 builds by @torcolvin in #7832
• Fix for manifest/product-config mismatch by @adamcfraser in #7836
• Revert "Remove RetryLoopCas since RetryLoop behaves identically (#7823)" by @torcolvin in #7837
• CBG-4921: TestUserXattrRevCache flake fix by @gregns1 in #7838
• Bump github.com/KimMachineGun/automemlimit from 0.7.2 to 0.7.5 by @dependabot[bot] in #7839
• Add hlv test cases for legacy rev history by @torcolvin in #7827
• CBG-4962 create cookie with SameSite=None if CORS enabled by @torcolvin in #7841
• CBG-4963 create 4.0.0.2/3.3.0.2 by @torcolvin in #7842
• CBG-4895: Allow tuning of dcp_read_buffer and kv_buffer server connstr parameters by @RIT3shSapata in #7829
• CBG-4967 don't set SameSite:None without Secure by @torcolvin in #7847
• CBG-4948 update the documentation for CORS by @torcolvin in #7833
• Setup 3.2.7/3.3.1/4.0.1.xml by @torcolvin in #7848
• CBG-4966 create a one time session id for blipsync by @torcolvin in #7845
• CBG-4930: Add Revtree to RevMessage's stringer function by @RIT3shSapata in #7840
• CBG-4924 ignore updating local rev if BlipTesterCollectionClient is closed by @torcolvin in #7862
• CBG-4968: Avoid logging at debug in pruning of cache by @gregns1 in #7863
• CBG-4470: Simplify PutExistingCurrentVersion by @RIT3shSapata in #7866
• CBG-4746: Deduplicate channel set outside processEntry by @gregns1 in #7861
• CBG-4955 fix test flakes in attachment migration tests by @torcolvin in #7867
• CBG-4892: Add eccv to cluster_info endpoint by @RIT3shSapata in #7846
• CBG-4993 support views in test harness with CBS 8.0 by @torcolvin in #7872
• Bump golang.org/x/oauth2 from 0.32.0 to 0.33.0 by @dependabot[bot] in #7871
• CBG-4345 don't panic if role documents can't be read by @torcolvin in #7816
• CBG-4923: Prevent Excessive conflict logging in PutCurrentVersion by @RIT3shSapata in #7865
• CBG-4980: support /db/_flush for internal testing by @torcolvin in #7864
• CBG-4988 log panics in http by @torcolvin in #7876
• CBG-3689: CheckProposedRev does not unmarshall the entire history by @RIT3shSapata in #7875
• CBG-4714: collect goroutine stack traces on signal by @gregns1 in #7870
• CBG-4989 don't panic if no _vv but _sync.rev.ver on import by @torcolvin in #7877
• Bump golang.org/x/crypto from 0.43.0 to 0.44.0 by @dependabot[bot] in #7882
• Bump github.com/coder/websocket from 1.8.12 to 1.8.14 by @dependabot[bot] in #7883
• Bump golang.org/x/net from 0.46.0 to 0.47.0 by @dependabot[bot] in #7884
• CBG-4747: remove serialisation from caching process by @gregns1 in #7885
• CBG-4981: fix panic in _config?include_runtime=true endpoint by @gregns1 in #7887
• Remove goutils logger by @torcolvin in #7886
• Update test comment description by @torcolvin in #7826
• CBG-4928: Update log messages on changes feed being cancelled by @RIT3shSapata in #7880
• CBG-4932 improve ResyncManger test flakes by @torcolvin in #7891
• CBG-5006: Split ServerContext mutexes by @bbrks in #7889
• CBG-5020: fix panic in eviction based on out of sync stats by @gregns1 in #7895
• CBG-5020 Avoid double-counting memory correction by @adamcfraser in #7900
• CBG-5022: move rev cache locks into defer where possible by @gregns1 in #7896
• CBG-5032 Add revcache value lock for synchronized delta generation by @bbrks in #7903
• CBG-4932 fix backward assertion in resync test by @torcolvin in #7908
• add 3.3.2 and 4.0.1 manifests by @torcolvin in #7910
• CBG-5017 Resync: allow legacy rev documents to be resynced by @torcolvin in #7890
• CBG-5013 move gocb dcp client to separate file by @torcolvin in #7917
• CBG-3399: Fix flaky test TestUserXattrDeleteWithRevCache by @RIT3shSapata in #7915
• Bump github.com/coreos/go-oidc/v3 from 3.16.0 to 3.17.0 by @dependabot[bot] in #7894
• Bump golang.org/x/crypto from 0.44.0 to 0.45.0 by @dependabot[bot] in #7893
• CBG-5040: pre allocate slices on processEntry/addPendingLogs by @gregns1 in #7920
• CBG-4673 Retry intermittent design doc operations by @torcolvin in #7922
• CBG-4905: update defualt resolver for blip tester by @gregns1 in #7907
• CBG-5025 allow integration tests to work with magma by @torcolvin in #7921
• CBG-5051 make sure to marshal sequence on norev by @torcolvin in #7925
• CBG-5050: fix for no rev messages being sent as changes on blip tester client by @gregns1 in #7924
• Add 3.3.2.1 manifest by @torcolvin in #7926
• Revert "CBG-4905: update defualt resolver for blip tester" by @gregns1 in #7928
• Bump golang.org/x/oauth2 from 0.33.0 to 0.34.0 by @dependabot[bot] in #7929
• CBG-4915: Fix flakiness of TestMultiActorLosingConflictUpdateRemovingAttachments by @RIT3shSapata in #7923
• CBG-3690 don't re-read document for resync by @torcolvin in #7892
• Bump golang.org/x/net from 0.47.0 to 0.48.0 by @dependabot[bot] in #7930
• Remove unused gocov by @torcolvin in #7936
• CBG-4411: Improvements to Diagnostic Sync Function dry run endpoint by @RIT3shSapata in #7932
• CBG-4945: Fix default sync function dry run by @RIT3shSapata in #7937
• CBG-4413: Add logging capture to Sync Function diagnostic API by @bbrks in #7938
• CBG-1423: Enable GSI by default for integration tests by @RIT3shSapata in #7939
• CI: Add govulncheck / Bump main Go version by @bbrks in #7934
• CBG-4412: Add ability to pass custom import filter into diagnostic API by @RIT3shSapata in #7935
• CBG-5065 sgcollect: remove tmpdir by @torcolvin in #7941
• CBG-5045: Improve topologytest debug output by @torcolvin in #7888
• Add dry-run logging output to OpenAPI specs by @bbrks in #7942
• add 3.3.2.2 and 4.0.2.1 builds by @torcolvin in #7943
• CBG-5031: uptake blip panic fix by @gregns1 in #7946
• Create 3.3.3 builds (and bump Go version) by @bbrks in #7948
• Create 4.0.3 builds (and bump Go version) by @bbrks in #7947
• Diagnostic API: Update OpenAPI Specs by @bbrks in #7955
• Reenable assertion in TestRoleAccessQuery for old Query bugfix by @bbrks in #7953
• 3.2.7: Bump Go version by @bbrks in #7957
• CBD-6543 update python version for testing by @torcolvin in #7966
• Diagnostic API: Tweak OpenAPI spec wording for user impersonation by @bbrks in #7958
• CBG-5089: Add support for user defined metadata in diagnostic api by @RIT3shSapata in #7954
• CBG-5103: DocID for Diagnostic API to be passed in request body instead of query param by @RIT3shSapata in #7956
• CBG-5091: Replace websocket with fork for extended control frame timeouts by @bbrks in #7972
• CBD-6543 bump build repo SHA to pick up recent changes to pyinstaller by @torcolvin in #7977
• CBG-5101: Add support for User context in Diagnostic API by @RIT3shSapata in #7974
• Bump Go patch versions for future releases by @bbrks in #7991
• Correct diagnostic API routes leading underscore by @bbrks in #7988
• CBG-5110: assign Update call back to allChangedChannels by @gregns1 in #7992
• CBG-5099: Fix missing doc id in doc body by @RIT3shSapata in #7987
• CBG-5113: Add diagnostic server audit event by @RIT3shSapata in #7996
• CBG-5102: don't add backup rev loads to opposite lookup map that you have fetched by by @gregns1 in #7959
• CBG-5096: Stamp channel information into backup revision documents by @bbrks in #7997
• CBG-5122: Fix diagnostic audit event test by @RIT3shSapata in #8006
• CBG-5057 wrap changes error with document id and rev by @torcolvin in #8001
• CBG-5052 send noRev if history can't be parsed by @torcolvin in #7949
• CBG-5127: Restore warnings when the import filter function for a document fails by @bbrks in #8017
• Improve reliability of TestBlipDeltaComputationFromBackupRev by @bbrks in #8021
• CBG-5117: Support request-provided oldDoc values in Sync Function Dry-Run by @bbrks in #8019
• CBG-5130: fix panic when using bypass revision cache with delta sync by @gregns1 in #8029
• Unskip old now working TestGetUserDocAccessSpanDeletedRole by @bbrks in #8020
• CBG-5129: Enable exhaustive linter by @torcolvin in #8000
• CBG-5134: attachment fetch is in wrong place when loading from bucket by CV by @gregns1 in #8032
• CBG-5133: fix backup revs being marked as deleted when current rev is deleted by @gregns1 in #8033
• CBG-5056 close blip connection on panic by @torcolvin in #8023
• fix wrong error and incorrect paramter by @gregns1 in #8040
• CBG-5145: Support replacement revs for non-filtered replications by @bbrks in #8043
• CBG-5126: disable rev cache test env by @gregns1 in #8016
• CBG-5025 test-only: support running with views=true and CBS 8.0 by @torcolvin in #8042
• CBG-5141: Only fetch backup revision for fromRev for delta sync by @gregns1 in #8041
• add a test for metadatakeys by @torcolvin in #8051
• CBG-3605 fix test flake: wait for stat by @torcolvin in #8053
• Upgrade python test dependencies by @torcolvin in #7979
• CBG-5039 use wait for stat to avoid test flake by @torcolvin in #8052
• CBG-5109 Fix & vet log *fCtx function arguments by @torcolvin in #7963
• CBG-5143: Add EdDSA to set of supported algorithms for OIDC/JWTs by @bbrks in #8054
• Allow go test benchmark to compile/run by @torcolvin in #8035
• CBG-5156 check db state after checking permissions by @torcolvin in #8055
• CBG-5070: Fix _mou not being cleared when tombstoning document by @RIT3shSapata in #8044
• Update to go 1.25.7 by @torcolvin in #8060
• Bump golang.org/x/oauth2 from 0.34.0 to 0.35.0 by @dependabot[bot] in #8062
• add test for existing DCP checkpoint prefixes by @torcolvin in #8046
• Bump cryptography from 46.0.3 to 46.0.5 by @dependabot[bot] in #8063
• CBG-5168 don't panic when db is offline initializing indexes by @torcolvin in #8058
• Bump golang.org/x/net from 0.49.0 to 0.50.0 by @dependabot[bot] in #8065
• Bump github.com/shirou/gopsutil/v4 from 4.25.9 to 4.26.1 by @dependabot[bot] in #8049
• CBG-4542: do not add to rev cache on write unless configured to do so by @gregns1 in #8050
• Fix openapi lint gh action by @torcolvin in #8072
• Simplify sharded dcp API by @torcolvin in #8070
• Add initial AGENTS.md by @bbrks in #8071
• CBG-5181 jenkins: download go version from go.mod by @torcolvin in #8068
• Decouple BucketSpec from DatabaseContext by @torcolvin in #8075
• Remove unused groupID argument for DCP by @torcolvin in #8069
• Fix openapi example mistakes by @torcolvin in #8076
• Bump werkzeug from 3.1.5 to 3.1.6 by @dependabot[bot] in #8080
• CBG-4286 separate feed name from checkpoint prefix by @torcolvin in #8073
• CBG-5160 stub index creation for test purposes by @torcolvin in #8056
• CBG-4812: Use base.IsRevTreeID in BLIP when determining CV/RevTreeID values by @bbrks in #8081
• CBG-5149: Stamp more default values into DefaultDbConfig() for visibility in include_runtime by @bbrks in #8047
• CBG-5170 change listener: don't process docs without xattr by @torcolvin in #8064
• Test: Change default Couchbase Server URL to 127.0.0.1 from localhost by @bbrks in #8082
• Update golang.org/x/net to v0.51.0 by @bbrks in #8085
• CBG-4990 docs fix: admin api returns 403 if database not found by @torcolvin in #8086
• CBG-5192: add ability to identify if pushed encoded CV is derived from our local revID by @gregns1 in #8083
• CBG-5201: Simplify test assertions for sequence handling by @torcolvin in #8088
• Remove verbose logging from tests by @torcolvin in #8090
• CBG-5201 test-only: add missing WaitForPendingChanges by @torcolvin in #8089
• CBG-5112: add comment to explain why GetActive fetches by revID still by @gregns1 in #8091
• Switch location of setting log context for import by @torcolvin in #8095
• CBG-3214 update to cbgt 1.4.14 by @torcolvin in #8092
• Upgrade to go-1.25.8 by @torcolvin in #8100
• fix lint issue on structtag by @torcolvin in #8096
• Fix logging panic by @torcolvin in #8097
• rename pindex functions to not include import by @torcolvin in #8098
• Reduce duplication in DCP code by @torcolvin in #8074
• CBG-4651: change _online/_offline endpoints to work for both persistent and non persistent config by @gregns1 in #8093
• Test: Add a timeout in ...Delta...BypassRevCache...WhenInFlightRevChanged by @bbrks in #8102
• Bump golang.org/x/net from 0.51.0 to 0.52.0 by @dependabot[bot] in #8105
• CBG-5203: Silently handle PING BLIP messages for cbl-js by @bbrks in #8101
• Setup 4.0.4/3.3.4 builds by @torcolvin in #8106
• Add factory folder to gitignore by @torcolvin in #8114
• Create sharded dcp options struct by @torcolvin in #8112
• CBG-5192 add some log fixes for RTE errors by @torcolvin in #8129
• Bump github.com/elastic/gosigar from 0.14.3 to 0.14.4 by @dependabot[bot] in #8132
• CBG-5153: Implement resync using CBGT for a single node by @RIT3shSapata in #8057
• CBG-5038 allow metadata id to be nil while syncinfo exists by @torcolvin in #8059
• CBG-5231: Clean up GH Action unit testing CI outputs by @bbrks in #8103
• Pr template update by @RIT3shSapata in #8131
• CBG-5233: have single key type on revision cache by @gregns1 in #8133
• CBG-5257: remove GetCV function by @gregns1 in #8134
• CBG-5235: orchectration layer for revision and delta cache access by @gregns1 in #8135
• Skip distributed resync tests for CE by @torcolvin in #8140
• Bump pygments from 2.19.2 to 2.20.0 by @dependabot[bot] in #8142
• CBG-5234: create delta only cache by @gregns1 in #8143
• Bump cryptography from 46.0.5 to 46.0.6 by @dependabot[bot] in #8138
• CBG-5258: tidy revision cache tests by @gregns1 in #8136
• rename importHeartbeatlistener by @RIT3shSapata in #8137
• fix TestCBGTIndexCreationUnsafeLegacyName by @RIT3shSapata in #8150
• Bump github.com/go-jose/go-jose/v4 from 4.1.3 to 4.1.4 by @dependabot[bot] in #8146
• Bump github.com/shirou/gopsutil/v4 from 4.26.1 to 4.26.3 by @dependabot[bot] in #8147
• CBG-5263 workaround TestNewlyCreateSGWPermissions failure by @torcolvin in #8145
• CBG-4363: Xattr-only caching feed by @bbrks in #8120
• CBG-4771 use context.WithCancelCause by @torcolvin in #8153
• DOC-14086: Cleanup Prometheus metrics OpenAPI spec by @bbrks in #8155
• Bump Go version by @bbrks in #8156
• CBG-5205 test speed up: avoid sleep on db start by @torcolvin in #8094
• CBG-5263: fix TestNewlyCreateSGWPermissions by @gregns1 in #8154
• Bump cryptography from 46.0.6 to 46.0.7 by @dependabot[bot] in #8157
• Fix incorrect stat types by @bbrks in #8160
• Bump golang.org/x/net from 0.52.0 to 0.53.0 by @dependabot[bot] in #8165
• CBG-5280: setup mobile system collection for rosmar by @gregns1 in #8161
• CBG-5285: flake fix for TestActiveReplicatorPushAndPullConflict by @gregns1 in #8167
• Bump pytest from 9.0.2 to 9.0.3 by @dependabot[bot] in #8168
• CBG-5213 implement private API for rosmar bucket deletion by @torcolvin in #8158
• Fix flake: TestRequireResync by @torcolvin in #8170
• CBG-5222: implement MetadataStore type by @gregns1 in #8159
• CBG-5289: nil check on map niled by closure of server context by @gregns1 in #8169
• CBG-5239 update go version 1.26 by @torcolvin in #8171
• CBG-4249: Create an abstract DCPClient to be able to work with rosmar by @torcolvin in #7879
• AGENTS.md: Describe git branches by @bbrks in #8176
• CBG-5265: Generate Grafana dashboards from stats-definition-exporter by @bbrks in #8162
• CBG-5296 Wait for DCP client close by @torcolvin in #8175
• CBG-5190: Add node poller for shardedDCPFeedListener by @RIT3shSapata in #8141
• Avoid data race in counting goroutines in test by @torcolvin in #8180
• Remove dead code for rosmar by @torcolvin in #8181
• CBG-5243 use correlation id for resync logging by @torcolvin in #8172
• CBG-5259 wait for revision before adding a second document by @torcolvin in #8183
• CBG-4249 test skips for support rosmar DCP by @torcolvin in #8174
• CBG-4665: Only put an ActiveReplicator into an error state when the connect error is a fatal one by @bbrks in #8179
• CBG-5295: Distributed resync to work only on subset of collections by @RIT3shSapata in #8184
• CBG-5191: Add distributed test simulation for nodepoller by @RIT3shSapata in #8173
• CBG-5301 update rosmar bucket.Close fix by @torcolvin in #8186
• CBG-5211 drop assertions about number of warnings by @torcolvin in #8191
• CBG-5319: fix flaky test - TestCfgNodePoller_Poll by @RIT3shSapata in #8192
• CBG-5313: Add documentation for _cluster_info by @torcolvin in #8189
• CBG-5316: add database_error to all_dbs endpoint open api spec by @gregns1 in #8188
• CBG-5283: proposal to fix stale delta entry by @gregns1 in #8163
• CBG-5333: setup builds for 3.2.8/3.3.5/4.0.5 by @gregns1 in #8193
• CBG-5336: fix flaky TestSoftDeleteCasMismatch by @bbrks in #8194
• CBG-5252: Add journalctl command to collect kernel messages by @RIT3shSapata in #8198
• CBG-4985: Support LeakyBucket for CBS in RestTester by @torcolvin in #8177
• Update version of github actions by @torcolvin in #8200
• topologytest: use waitForConvergingTombstones in multi-actor delete/resurrect by @bbrks in #8201
• CBG-5335: fix flaky TestAttachmentMigrationMultiNode under Rosmar by @bbrks in #8197
• Update to version that uses node24 by @torcolvin in #8202
• CBG-5261 lock on StartOnlineProcesses by @torcolvin in #8203
• CBG-5337 remove pointless lock for DatabaseContext.Authenticator by @torcolvin in #8204
• CBG-4985 test-only: fix TestResyncWithoutIndexes by @torcolvin in #8199
• CBG-5322 flaky test wait for stats by @torcolvin in #8211
• CBG-5321: TestDeltaGenerationWithBypassRevCache test flake by @gregns1 in #8212
• CBG-5262 fix missing changes with active_only=true and limit= by @torcolvin in #8144
• CBG-5232: cache memory managment by @gregns1 in #8151
• CBG-5302: error for starting replication with non existant run_as by @gregns1 in #8205
• Add debug logging for test by @torcolvin in #8214
• docs/api: add user-data examples and clarify Document schema by @bbrks in #8213
• Bump gocbcore to uptake GOCBC-1815 snappy logging improvement by @bbrks in #8216
• CBG-5351: TestReplicationStatusActions: avoid flake and crash by @torcolvin in #8217
• undo temp assertion error for bad gocb version by @bbrks in #8219
• Bump github.com/shirou/gopsutil/v4 from 4.26.3 to 4.26.4 by @dependabot[bot] in #8221
• CBG-5325: Add REST API spec for Document channel history compaction by @RIT3shSapata in #8209
• CBG-5329: Add REST API spec for user channel history pruning by @RIT3shSapata in #8210
• CBG-5358: fix test flake TestCfgNodePoller_StartPolling by @RIT3shSapata in #8222
• CBG-5354 fix flake in TestDeltaReplicationWithBypassRevCacheAndInflightRevChanged by @torcolvin in #8220
• CBG-5216: ClusterCompatVersion phase 1 by @bbrks in #8190
• CBG-5224: cross collection query joins by @gregns1 in #8185
• CBG-5353: No-op stub for bootstrap.use_system_metadata_collection config by @bbrks in #8223
• CBG-5180 add a multi node mode to BackgroundManager by @torcolvin in #8215
• CBG-5360 add context to FatalPanicHandler by @torcolvin in #8224
• CBG-5223: Include both MetadataStore datastores in caching feed by @bbrks in #8226
• Allow longer timeout while waiting fora bucket to get ready by @torcolvin in #8234
• CBG-5219: Prune stale nodes using heartbeat timestamps from registry by @bbrks in #8232
• Update sg-bucket/rosmar fixes by @torcolvin in #8243
• CBG-5370: update go version 1.26.3 by @RIT3shSapata in #8244
• CBG-5355: fix panic for on demand get when ErrImportCancelled is returned from import by @gregns1 in #8225
• CBG-4496 add regression test for SetRaw/AddRaw for rosmar by @torcolvin in #8239
• CBG-5175: resync - purge checkpoints if needed by @torcolvin in #8233
• CBG-4920 Fix test flake: TestActiveReplicatorHLVConflictCustom by @torcolvin in #8247
• CBG-5291: CAS-safe Update on dual MetadataStore wrapper by @bbrks in #8238
• Fix TestImportPartitionsServerless in CE mode by @torcolvin in #8250
• CBG-5260: remove panic call in rev cache Put by @gregns1 in #8237
• CBG-5290: Wire up ctx into sg-bucket apis by @bbrks in #8240
• CBG-5365: escape . characters for channel removal macro expansion by @gregns1 in #8241
• CI: upload rendered test logs as artifacts on failure by @bbrks in #8246
• CBG-5266: Prevent downgrades across cluster compatibility versions by @bbrks in #8235
• Fix issues from go vet: by @torcolvin in #8251
• CBG-5365-followup: fix escaping issue by @gregns1 in #8256
• Bump golang.org/x modules by @bbrks in #8255
• CBG-5298: Cleanup for GetUser by @bbrks in #8259
• CBG-5376 skip test temporarily by @torcolvin in #8265
• Improve agent instructions by @bbrks in #8260
• Move a db scoped function from DatabaseCollection by @torcolvin in #8248
• CBG-5249: collect value of GOMEMLIMIT in sgcollect by @gregns1 in #8269
• CBG-5381: fix resync regenerate sequences set sync info no-op by @gregns1 in #8267
• CBG-5386: Grafana generator: Stamp "version": 1 by @bbrks in #8274
• CBG-5330: Add function to compact user channel history by @RIT3shSapata in #8245
• CBG-5182: Add Database state management with polling by @RIT3shSapata in #8187
• CBG-5392: setup builds for 3.3.6/4.0.6 by @RIT3shSapata in #8278
• CBG-5367: add metadata store to dcp client for both CBS and rosmar by @gregns1 in #8279
• CBG-5225: sg-bucket KV range scan implementations by @bbrks in #8084
• Bump idna from 3.11 to 3.15 by @dependabot[bot] in #8282
• Skip flaky TestServerlessFetchConfigsLimited ahead of removal by @bbrks in #8281
• CBG-5371: create num partitions config option for resync by @gregns1 in #8280
• CBG-5398: Track heartbeat listener goroutine in sgReplicateManager.closeWg by @bbrks in #8283
• Add RequireWaitForStat for delta sync tests by @torcolvin in #8264
• CBG-4649 remove TestServerlessConnectionLimitingOneShotFeed by @torcolvin in #8285
• RedactableError support for errors.Is/As/AsType by @torcolvin in #8182
• Improve/fix status assertions for BackgroundManager tests by @torcolvin in #8286
• CBG-5229: Fully acknowledged db config updates by @gregns1 in #8287
• Parametrize running distributed resync tests by @torcolvin in #8288
• CBG-5220: Freezable cluster compat version by @bbrks in #8236
• CBG-5177 allow stats to be collated for distributed background manager by @torcolvin in #8242
• bump golang x net and crypto by @gregns1 in #8292
• CBG-5212: Fix requests dropping context information for NonCancellableContext type by @RIT3shSapata in #8284
• Create closer functions for DCP clients by @torcolvin in #8293
• CBG-5366: set sync info to binary document when cluster compat v4.1+ by @gregns1 in #8291
• Rosmar Bootstrap TouchMetadataDocument CAS fix by @bbrks in #8289
• CBG-5378: Track older SG nodes for ClusterCompatVersion via cbgt-based side-channels by @bbrks in #8297
• CBG-5326: Function to handle document channel history compaction by @RIT3shSapata in #8218
• Bump to latest released gocb versions by @bbrks in #8298
• CI Fix: shellcheck by @bbrks in #8301
• CBG-5227: background metadata migration task by @gregns1 in #8299
• CBG-5411: Uptake Rosmar Incr fix by @bbrks in #8300
• CBG-5379 add resync stats for targeted/error by @torcolvin in #8294
• CBG-5375 fix FlushChannelCache test data races by @torcolvin in #8290
• Add --hide-summary=skipped to remove github noise by @torcolvin in #8303
• fix flake for TestMetadataMigrationStartsAfterAllNodesApplyConfig by @gregns1 in #8304
• Parametrize resync tests by @torcolvin in #8306
• CBG-5412 do not mark error in async init manager if stopping by @torcolvin in #8305
• CBG-5372 Move single node resync code into its own functions by @torcolvin in #8310
• CBG-5226: Opt-in use of _system._mobile for databases and bootstrap by @bbrks in #8309
• CBG-5176: add resync targeted and resync errors to prometheus stats by @gregns1 in #8313
• CBG-5228: implement background metadata migration task by @bbrks in #8311
• CBG-5184 use cbgt one shot mode for distributed resync by @torcolvin in #8266
• CBG-5357: removal of fast fail retry by default by @gregns1 in #8308
• CBG-5356 don't respond with Set-Cookie for one_time session by @torcolvin in #8315
• CBG-5331: Wire up User Channel History compaction to REST API by @RIT3shSapata in #8277
• CBG-5327: Wire up REST API to document channel history compaction by @RIT3shSapata in #8275
• CBG-5332: Add audit events for user access history compaction by @RIT3shSapata in #8312
• CBG-5328: Add audit events for document channel history compaction by @RIT3shSapata in #8276
• CBG-5345: Remove major and minor versions from checkpoint names by @RIT3shSapata in #8317
• CBG-5183 resync: integrate background manager and database state by @torcolvin in #8314
• Bump github.com/shirou/gopsutil/v4 from 4.26.4 to 4.26.5 by @dependabot[bot] in #8322
• Bump github.com/grafana/grafana-foundation-sdk/go from 0.0.12 to 0.0.13 by @dependabot[bot] in #8323
• CBG-5427: flake in TestSyncInfoUpgradeGate by @gregns1 in #8324
• CBG-5354 fix flake: TestDeltaReplicationWithBypassRevCacheAndInflightRevChanged by @torcolvin in #8302
• Support vBucket completed distributed by @torcolvin in #8321
• CBG-5183 Fix TestAttachmentCompactionRunTwice by @torcolvin in #8329
• CBG-5431: Update go version 1.26.4 by @RIT3shSapata in #8336
• CBG-5106: Incorrect history being sent for legacy revision cases in delta sync by @gregns1 in #8307
• CBG-5428: flaky test fixes relating to metadata migration by @gregns1 in #8325
• CBG-5433 make sure multi node background managers can restart by @torcolvin in #8337
• Don't error in views if no docs found by @torcolvin in #8339
• CBG-5426 drop duplicate lasterror field with separate locks by @torcolvin in #8338
• CBG-5434: Avoid calling ResyncManager.Resume for non distributed resync by @torcolvin in #8333
• Allow resync background manager Resume to round trip options by @torcolvin in #8331
• CBG-5359: Remove fatal panic handler calls from buildRevokedFeed and changesFeed by @RIT3shSapata in #8316
• Enable distributed resync if EE by @torcolvin in #8340
• Skip flaky tests for distributed resync until investigation by @torcolvin in #8341
• CBG-5413: supportability enhancements around metadata migration by @gregns1 in #8320
• CBG-5430: add system collection to purgeWithDCPFeed by @gregns1 in #8335
• CBG-5451: bootstrap xattr config migration fix by @gregns1 in #8347
• CBG-5442: sync function documents are not handled by migration process by @gregns1 in #8348
• CBG-5418 drop previous resync stats on restart by @torcolvin in #8344
• CBG-5424: check migration status before determining whether to set migration as complete by @gregns1 in #8343
• CBG-5418 Improve resync processed and changed stats when running across multiple nodes by @adamcfraser in #8350
• Bump github.com/grafana/grafana-foundation-sdk/go from 0.0.13 to 0.0.16 by @dependabot[bot] in #8346
• CBG-5438: make AttachmentMigrationManager.CollectionIDs race proof by @torcolvin in #8342
• mistake made using non existent bucket and was meant to use non exisent metadataID by @gregns1 in #8356
• CBG-5430 allow SG_TEST_USE_GSI=false by @torcolvin in #8354
• CBG-5432: metadata migration steals co-located sibling DB metadata when the default metadataID DB migrates by @gregns1 in #8352
• CBG-5397: On-demand import should consider mou when updating HLV by @RIT3shSapata in #8349
• CBG-5436: generate HLV.version from our own HLC for SGW actor writes by @gregns1 in #8355
• CBG-5444 Close terminator instead of stopProcess when polling detects StatusNotRunning by @adamcfraser in #8353
• CBG-5457 Use 64 partitions for resync by default by @adamcfraser in #8357
• CBG-5464 Test fix to TestResyncDCPInit by @adamcfraser in #8360
• Bump golang.org/x/sync from 0.20.0 to 0.21.0 by @dependabot[bot] in #8361
• Bump golang.org/x/net from 0.55.0 to 0.56.0 by @dependabot[bot] in #8362
• CBG-5457 fix test text assertion by @torcolvin in #8367
• CBG-5732 Principal invalidation and regen sequences for sharded resync by @adamcfraser in #8358
• CBG-5461: Support dropping _default._default after metadata migration, and make bootstrap migration-completion per-bucket by @gregns1 in #8365
• CBG-5441: fix resync tests for distributed resync by @torcolvin in #8368
• CBG-5467 when resuming via action=start preserve stats by @torcolvin in #8370
• [4.1.0 Backport] CBG-5339: do not send starting sequence greater than end sequence by @bbrks in #8378
• [4.1.0 Backport] CBG-5484: Support resync invalidate principals on both metadata collections by @bbrks in #8383

Full Changelog: 4.0.0...4.1.0