CHANGELOG.md

Release History

4.60.0-beta.1 (Unreleased)

Features Added

Breaking Changes

Bugs Fixed

Other Changes

4.59.0 (2024-04-27)

Features Added

• Added public APIs getCustomItemSerializer and setCustomItemSerializer to allow customers to specify custom payload transformations or serialization settings. - See PR 38997 and PR 39933

Other Changes

• Load Blackbird or Afterburner into the ObjectMapper depending upon Java version and presence of modules in classpath. Make Afterburner and Blackbird optional maven dependencies. See - PR 39689

4.53.5-hotfix (2024-04-25)

Bugs Fixed

• Fixed an issue in QuorumReader when quorum could not be selected even though 1 secondary and Primary are reachable and in sync. - See PR 38832

4.58.0 (2024-04-16)

Other Changes

• Changed initial targetBatchSize to be capped by both initialBatchSize and maxBatchSize configured in CosmosBulkExecutionOptions - See39500
• Ensured that exceptionMessage is populated even for non-cosmos Exceptions in GatewayStatistics - See PR 39507
• Added partition key helper functions to PartitionKeyBuilder that are needed for azure-spring-data-cosmos. - See PR 39213
• Added cosmos.client.req.rntbd.actualItemCount and cosmos.client.req.gw.actualItemCount metrics. - See PR 39682

4.57.0 (2024-03-25)

Features Added

• Added public APIs setMaxMicroBatchSize and getMaxMicroBatchSize in CosmosBulkExecutionOptions - See PR 39335

Bugs Fixed

• Suppressed exceptions when calling diagnostics handlers. - See PR 39077
• Fixed an issue where no cross region retry for write operations due to channel acquisition timeout. - See PR 39255
• Fixed incorrect container tag value in metrics. - See PR 39322
• Fixed issue where CosmosDiagnosticsContext is null when diagnostics are sampled out. - See PR 39352

Other Changes

• Changed logic to only call System.exit() in DiagnosticsProvider for Error scenario. Also added System.err for Error cases. - See PR 39077
• Removed System.exit() calls from ImplementationBridgeHelpers. - See PR 39387

4.53.4-hotfix (2024-03-15)

Other Changes

• Removed System.exit() calls from ImplementationBridgeHelpers. - See PR 39215

4.48.3-hotfix (2024-03-15)

Bugs Fixed

• Fixed an issue where sampleDiagnostics is not being honored for `query. See PR 37015
• Suppressed exceptions when calling diagnostics handlers. - See PR 39077

Other Changes

• Changed logic to only call System.exit() in DiagnosticsProvider for Error scenario. Also added System.err for Error cases. - See PR 39077
• Removed System.exit() calls from ImplementationBridgeHelpers. - See PR 39182

4.45.3-hotfix (2024-03-15)

Bugs Fixed

• Fixed an issue where sampleDiagnostics is not being honored for `query. See PR 37015
• Suppressed exceptions when calling diagnostics handlers. - See PR 39077

Other Changes

• Changed logic to only call System.exit() in DiagnosticsProvider for Error scenario. Also added System.err for Error cases. - See PR 39077
• Removed System.exit() calls from ImplementationBridgeHelpers. - See PR 39184

4.53.3-hotfix (2024-03-07)

Bugs Fixed

• Suppressed exceptions when calling diagnostics handlers. - See PR 39121

Other Changes

• Changed logic to only call System.exit() in DiagnosticsProvider for Error scenario. Also added System.err for Error cases. - See PR 39121

4.56.0 (2024-02-20)

Features Added

• Added overloads for CosmosAsyncContainer.readMany and CosmosContainr.readMany accepting request options via CosmosReadManyRequestOptions to allow specifying excluded regions, diagnostics thresholds and end-to-end timeout etc. - See PR 38821

Bugs Fixed

• Fixed an issue in QuorumReader when quorum could not be selected even though 1 secondary and Primary are reachable and in sync. - See PR 38832

4.55.1 (2024-02-13)

Other Changes

• Limited max. number of threads possible to be used by BulkExecutor instances . - See PR 38745

4.55.0 (2024-02-08)

• Added option to override the Http Connection Pool size in Gateway mode. Increasing the connection pool size beyond 1000 can be useful when the number of concurrent requests in Gateway mode is very high and you see a reactor.netty.internal.shaded.reactor.pool.PoolAcquirePendingLimitException: Pending acquire queue has reached its maximum size of 2000 error. - See PR 38305

Features Added

• Added payload size metrics for Gateway mode. - See PR 38517

Other Changes

• Reduced CPU overhead slightly for workloads with high throughput of point operations - especially when diagnostics like traces or metrics are enabled. - See PR 38232
• Changed to add transportRequestChannelAcquisitionContext in CosmosDiagnostics based on duration in channelAcquisitionStarted stage. By default, if channelAcquisitionStarted took more than 1s, transportRequestChannelAcquisitionContext will be added. - See PR 38416
• Added information about the path when it is invalid in RxDocumentService ctor. - See PR 38482
• Removed CancellationException callstack from RntbdRequestRecord.toString. - See PR 38504
• Using customized subStatusCodes for client generated InternalServerErrorException. - See PR 38518
• Added an option to opt-out of E2E timeout defined in CosmosClientBuilder for non-point operations via system property or environment variable. - See PR 38388
• Using ConnectionTimeout as the RNTBD connection acquisitionTimeout. - See PR 38695

4.53.2-hotfix (2024-02-04)

Other Changes

• Reduced CPU overhead slightly for workloads with high throughput of point operations - especially when diagnostics like traces or metrics are enabled. - See PR 38232
• Changed to add transportRequestChannelAcquisitionContext in CosmosDiagnostics based on duration in channelAcquisitionStarted stage. By default, if channelAcquisitionStarted took more than 1s, transportRequestChannelAcquisitionContext will be added. - See PR 38416
• Added an option to opt-out of E2E timeout defined in CosmosClientBuilder for non-point operations via system property or environment variable. - See PR 38388

4.54.0 (2024-01-03)

Features Added

• Integrate ThroughputControl with ChangeFeedProcessor - See PR 38052

Bugs Fixed

• Fixed issue where AAD/Entra ID related exceptions are not fully propagated to the caller when CosmosAsyncClient is created, causing ambiguity for user on the root cause of the error - See PR 37977
• Fixed a NullPointerException issue in MetadataRequestRetryPolicy when locationEndpointToRoute is not set. - See PR 38094

Other Changes

• Reset transitTimeoutCount and cancellationCount in RntbdClientChannelHealthChecker when CPU load is above threshold. - See PR 38157
• Perf-improvement avoiding extra-buffer copy for query and point operations - See PR 38072

4.53.1 (2023-12-06)

Bugs Fixed

• Fixed high number of PKRangeFeed calls when using BulkExecution without SparkConnector - See PR 37920

Other Changes

• Changed to DEBUG log level in WebExceptionRetryPolicy for non-handled exception scenario and retry scenario - See PR 37918

4.53.0 (2023-12-01)

Bugs Fixed

• Fixed a bug resulting in CosmosDiagnosticsContext.getStatusCode() always returning 0 for readMany operations. - See PR 37394
• Fixed an issue where PartitionKeyRange request will not do cross region retry. - See PR 37403
• Fixed an issue where Session consistency was not honored when the consistency level on the CosmosClientBuilder.consistencyLevel was not explicitly set to ConsistencyLevel.SESSION but the default account consistency level is session. If not enforcing session consistency is the intended behavior, you can set the CosmsoClientBuilder.consistencyLevel to ConsistencyLevel.EVENTUAL. - See PR 37377
• Fixed an issue where client level EndToEndOperationLatencyPolicyConfig.availabilityStrategy is not being applied for query - See PR 37511
• Fixed an issue where operation is not cancelled based on CosmosEndToEndOperationLatencyPolicyConfig.endToEndOperationTimeout when 429 happens - See PR 37764
• Fixed an issue where CosmosEndToEndOperationLatencyPolicyConfig.endToEndOperationTimeout is not applied for ReadMany - See PR 37764
• Fixed an issue with OFFSET and LIMIT query clause returning partial query results when used with DISTINCT - See PR 37860

Other Changes

• Modified the event payload when diagnostic details are traced (vis Open telemetry traces). The diagnostics can exceed the max. attribute size of 8KB. This PR will split the diagnostics and trace them in multiple events (ordered by SequenceNumber attribute) to ensure the full diagnostics message is available in logged events. - See PR 37376
• Added sessionRetryCfg to the diagnostic string and modified proactiveInit key name to proactiveInitCfg in the diagnostic string. - See PR 36711
• Modified 429 retry backoff time when retryAfter is not being returned from server. For 429/3200, SDK will retry immediately, for others SDK will backoff 100ms - See PR 37764

4.52.0 (2023-10-24)

Features Added

• Added an option to configure the minimum retry duration for 404/1002 session not available. - See PR 37143 and PR 37240

Bugs Fixed

• Fixed an issue where emptyPageDiagnosticsEnabled in CosmosQueryRequestOptions was being overridden. This caused empty page diagnostics to be logged (with INFO level) even when the flag was set to false - See PR 37199
• Fixed an issue where the HttpTimeoutPolicy was not being used correctly - See PR 37188
• Fixed an issue where SDK mark region unavailable on http timeout - See PR 37163
• Fixed an issue where SDK do A, B, C, A retry pattern for 404/1002 - See PR 37040
• Fixed an issue where SDK do aggressive retry on 449 - See PR 37040
• Fixed an issue where SDK skip cross region retry for server generated 410 for write operations - See PR 37040
• Added 410/1002 handling for ChangeFeedProcessor#getCurrentState in Latest Version, All Version and Deletes changes modes. - See PR 37107
  • NOTE : Here the fix is for a ChangeFeedProcessor instance built with either handleLatestVersionChanges or handleAllVersionsAndDeletesChanges.
• Fixed an issue where SDK does not do retry for AddressRefresh on HttpTimeout for write operations - See PR 37286

4.51.0 (2023-09-29)

Features Added

• Added a preview API to ChangeFeedProcessorBuilder to process an additional ChangeFeedProcessorContext for handling all versions and deletes changes. - See PR 36715
• Added public APIs to configure a Supplier<CosmosExcludedRegions> through CosmosClientBuilder#excludedRegionSupplier and CosmosExcludedRegions - a type which encapsulates a set of excluded regions. See PR 36616

Bugs Fixed

• Fixed an issue with the threshold based availability strategy, which could result in missing diagnostics and unnecessarily high tail latency - See PR 36508 and PR 36786.
• Fixed an issue where sampleDiagnostics is not being honored for query. See PR 37015
• Fixed the issue of excludeRegions not being honored for CosmosBulkExecutionOptions. - SeePR 36616
• Fixed an issue with missing diagnostics (metrics, logging) for Cosmos(Async)Container.readMany calls - See PR 37009

4.50.0 (2023-09-25)

Features Added

• Added throughput control support for gateway mode. See PR 36687
• Added public API to change the initial micro batch size in CosmosBulkExecutionOptions. The micro batch size is dynamically adjusted based on throttling rate. By default, it starts with a relatively large micro batch size, which can result in a short spike of throttled requests at the beginning of a bulk execution - reducing the initial micro batch size - for example to 1 - will start with smaller batch size and then dynamically increase it without causing the initial short spike of throttled requests. See PR 36910

Bugs Fixed

• Disabled CosmosEndToEndOperationLatencyPolicyConfig feature in ChangeFeedProcessor. Setting CosmosEndToEndOperationLatencyPolicyConfig at CosmosClient level will not affect ChangeFeedProcessor requests in any way. See PR 36775
• Fixed staleness issue of COSMOS.MIN_CONNECTION_POOL_SIZE_PER_ENDPOINT system property - See PR 36599.
• Fixed an issue where pageSize from byPage is not always being honored. This only happens when the same CosmosQueryRequestOptions being used through different requests, and different pageSize being used. See PR 36847
• Fixed an issue where build of CosmosClient and CosmosAsyncClient was getting blocked for the entire aggressive warmup duration even when all the connections have been opened already. - See PR 36889
• Fixed CosmosClient connection warm up bug to open connections aggressively. - See PR 36889

Other Changes

• Handling negative end-to-end timeouts provided more gracefully by throwing a CosmsoException (OperationCancelledException) instead of IllegalArgumentException. - See PR 36507
• Reverted preserve ordering in bulk mode(PR 35892). See PR 36638

4.45.2-hotfix (2023-09-18)

Important

We strongly recommend our customers to upgrade directly to at least 4.48.2 or above if they have been using the 4.45.2-hotfix version of azure-cosmos. Versions 4.46.0 - 4.48.1 will miss important fixes that have been backported to 4.45.2-hotfix.

Bugs Fixed

• Added capability to mark a region as unavailable when a request is cancelled due to end-to-end timeout and connection issues with the region in the direct connectivity mode. - See PR 35586
• Fixed an issue where ConnectionStateListener tracked staled Uris which fails to mark the current Uris unhealthy properly - See PR 36067
• Fixed an issue to update the last unhealthy timestamp for an Uri instance only when transitioning to Unhealthy from a different health status - See 36083
• Improved the channel health check flow to deem a channel unhealthy when it sees consecutive cancellations. - See PR 36225
• Optimized the replica validation flow to validate replica health with Unknown health status only when the replica is used by a container which is also part of the connection warm-up flow. - See PR 36225
• Fixed possible NullPointerException issue if health-check flow kicks in before RNTBD context negotiation for a given channel - See PR 36397.

4.48.2 (2023-08-25)

Important

We strongly recommend our customers to use version 4.48.2 and above.

Bugs Fixed

• Fixed possible NullPointerException issue if health-check flow kicks in before RNTBD context negotiation for a given channel - See PR 36397.

Other Changes

• Handling negative end-to-end timeouts provided more gracefully by throwing a CosmosException (OperationCancelledException) instead of IllegalArgumentException. - See PR 36535

4.49.0 (2023-08-21)

Features Added

• Added a flag for allowing customers to preserve ordering in bulk mode. See PR 35892
• Added a flag to bypass integrated cache when dedicated gateway is used. See PR 35865
• Added new aggressive retry timeouts for in-region calls. See PR 35987

Bugs Fixed

• Wired proactiveInit into the diagnostics to track warmed up containers, proactive connection regions and aggressive warm up duration - See PR 36111
• Fixed possible NullPointerException issue if health-check flow kicks in before RNTBD context negotiation for a given channel - See PR 36397.

Other Changes

• Added coverage for ChangeFeedProcessor in Latest Version change feed mode to read change feed from a custom start time for multi-write accounts. - SeePR 36257

4.48.1 (2023-08-09)

Bugs Fixed

• Fixed request start time in the CosmosDiagnostics for individual request responses - See PR 35705
• Fixed an issue where ConnectionStateListener tracked staled Uris which fails to mark the current Uris unhealthy properly - See PR 36067
• Gone exceptions that are not idempotent should not be retried because it is not known if they succeeded for sure. The handling of the exception in this case is left to the user. Fixed retrying write operations when a gone exception occurs in bulk mode. - See PR 35838
• Fixed an issue to update the last unhealthy timestamp for an Uri instance only when transitioning to Unhealthy from a different health status - See 36083

Other Changes

• Query metrics diagnostics changed to JSON format. - See PR 35761
• Improved the channel health check flow to deem a channel unhealthy when it sees consecutive cancellations. - See PR 36225
• Optimized the replica validation flow to validate replica health with Unknown health status only when the replica is used by a container which is also part of the connection warm-up flow. - See PR 36225

4.48.0 (2023-07-18)

Bugs Fixed

• Fixed an issue with deserialization of conflictResolutionTimestamp for All versions and deletes change feed mode. - See PR 35909
• Added capability to mark a region as unavailable when a request is cancelled due to end-to-end timeout and connection issues with the region in the direct connectivity mode. - See PR 35586

Other Changes

• Added fault injection support for Gateway connection mode - See PR 35378

4.37.2-hotfix (2023-07-17)

Bugs Fixed

• Fixed an issue with deserialization of conflictResolutionTimestamp for All versions and deletes change feed mode. - See PR 35912

4.47.0 (2023-06-26)

Features Added

• Added the capability to specify region switch hints through CosmosClientBuilder#setSessionRetryOptions for optimizing retries for READ_SESSION_NOT_AVAILABLE errors. - See PR 35292
• Added API to exclude regions on request options which helps avoid a regions from preferred regions for the request. - See PR 35166
• Added API for providing an availability strategy to improve availability when end-end timeout is specified. - See PR 35166
• Added Threshold based availability strategy. - See PR 35166

Bugs Fixed

• Fixes the readMany API to not drop existing documents from the response in point-read scenarios when there are non-existent document IDs also passed through the API - See PR 35513

4.46.0 (2023-06-09)

Features Added

• Added the capability to filter request-level metrics based on diagnostic thresholds. Request-level metrics usually are used to capture metrics per backend endpoint/replica - a high cardinality dimension. Filtering by diagnostic thresholds reduces the overhead - but also means request-level metrics can only be used for debugging purposes - not for monitoring purposes. So, it is important to use the unfiltered operation-level metrics for health monitoring in this case. - See PR 35114
• Added optional tags/dimensions for PartitionId/ReplicaId as alternative to ServiceAddress for direct-mode (rntbd) request-level metrics. - See PR 35164
• Added request level info including timeline and system usage to the CosmosDiagnosticsContext. - See PR 35254 and PR 35405
• Added an optional dimension/tag OperationSubStatusCode for operation-level metrics. - See PR 35334
• Added support for ComputedProperty in CosmosContainerProperties - See PR 35046

Breaking Changes

• Renamed the JVM configuration - COSMOS.DEFENSIVE_WARMUP_CONCURRENCY to COSMOS.OPEN_CONNECTIONS_CONCURRENCY - See PR 34859

Bugs Fixed

• Enabled connection warm-up to continue in a best-effort manner to other regions in case of address resolution errors for a particular region - See PR 35323
• Fixed an issue with ChangeFeedProcessor to fetch all changes before delay based on configured PollDelay. - See PR 35324

Other Changes

• Refactored CosmosContainerProactiveInitConfigBuilder to make use of ContainerDirectConnectionMetadata and to wire DirectConnectionConfig with JVM configuration - COSMOS.MIN_CONNECTION_POOL_SIZE_PER_ENDPOINT - See PR 34859
• Extending maximum retry delay in SessionTokenMismatchRetryPolicy. - See PR 35360

4.45.1 (2023-05-19)

Bugs Fixed

• Fixed an issue where status code & sub-status code 408/20008 will always be populated in the CosmosDiagnostics in case of RNTBD request failures - See PR 34999
• Fixed readMany API bug to enable swallowing of 404 Not Found exceptions for 404/0 scenarios when readMany performs point-reads internally - See PR 34966

4.45.0 (2023-05-12)

Features Added

• Added support for priority based throttling - See PR 34121
• Added configurability for minimum connection pool size for all containers through a system property - COSMOS.MIN_CONNECTION_POOL_SIZE_PER_ENDPOINT - See PR 33983.
• Added CosmosContainerProactiveInitConfigBuilder:setAggressiveWarmupDuration(Duration aggressiveWarmupDuration) public API to switch between aggressively opening connections in a blocking manner to defensively opening connections in a non-blocking manner after aggressiveWarmupDuration has elapsed - See PR 33983.
• Added end to end timeout policy for item operations. Requests will be cancelled if they have not finished before the configured timeout - See PR 34554.
• Added capability to sample diagnostics dynamically (without need to reinitialize the app or the Cosmos Client instance). - See PR 34915.

Bugs Fixed

• Fixed IllegalArgumentException in changeFeedProcessor when maxScaleCount is configured - See PR 34618
• Removed custom user agent suffix from client telemetry - See PR 34866
• Fixed an issue where userAgentSuffix is not being used in CosmosDiagnostics - See PR 34863
• Enabled proactive connection management to only reopen closed / reset connections to those endpoints used by containers which were part of the connection warm up flow - See PR 34892

Other Changes

• Disabled initialization of client telemetry background threads if client telemetry is disabled - See PR 34889
• Removed synchronized locking on generating random UUIDs - See PR 34879
• Capture diagnostics for cancelled RNTBD requests - See PR 34912
• Added support for threshold based speculative processing - See PR 34686

4.44.0 (2023-04-21)

Bugs Fixed

• Fixed an issue where throughput control is not triggered properly when target throughput is being used - See PR 34393
• Fixed an issue where IllegalStateException being thrown during replica validation - See PR 34538

4.43.0 (2023-04-06)

Features Added

• Added option to enable automatic retries for write operations - See 34227
• Added option to enable automatic logging of Cosmos diagnostics for errors or requests exceeding latency threshold - See 33209
• Added support for OpenTelemetry traces following the Semantic profile for Cosmos DB - See 33209

Breaking Changes

• Changed the default structure of Open Telemetry events being emitted by the SDK to follow the semantic profile for Cosmos DB. Use the COSMOS.USE_LEGACY_TRACING system property to retrun to the previous event structure: -DCOSMOS.USE_LEGACY_TRACING=true - See 33209

4.42.0 (2023-03-17)

Features Added

• Added support for Move operation - See PR 31078
• GA of subpartition functionality in SDK - See 32501
• Added ability for SDK to use partial partition keys for queries in subpartitioned containers - See 32501
• Enable handleLatestVersionChanges in ChangeFeedProcessor - See 33972
• Added Merge support. NOTE: to use Change Feed Processor with merge support, onboard to the new API handleLatestVersionChanges() in ChangeFeedProcessorBuilder.

Bugs Fixed

• Fixed readMany API to take in hierarchical partition keys - See 32501
• Fixed an issue in the Direct Transport metrics for acquired/closed channels which would be triggered when endpoint get closed/evicted due to exceeding idle timeouts. This would surface as stale metrics for these endpoints. - See 33969

Other Changes

• Added fault injection support - See PR 33329.

4.41.0 (2023-02-17)

Features Added

• Added ability to configure proactive connection management via CosmosClientBuilder.openConnectionsAndInitCaches(CosmosContainerProactiveInitConfig). - See PR 33267
• Added internal merge handling - See PR 31428. See PR 32097. See PR 32078. See PR 32165. See 32259. See 32496
• Added more granular control of which Cosmos client-side metrics to emit, whether to collect histograms and percentiles (and which) and also which tags/dimensions to associate with individual metrics. - See PR 33436

Breaking Changes

• NOTE: the PR to provide more granular control over metrics - See PR 33436 - includes two technically breaking changes. We don't expect any customers to be impacted by this, but the PR description as well as information below provides some context and options on how to revert the behavior to previous version.
  • The API CosmosClientTelemetryConfig.metricTagNames has been marked deprecated in favor of CosmosMicrometerMetricsOptions.defaultTagNames or CosmosMicrometerMeterOptions.suppressTagNames - the CosmosClientTelemetryConfig.metricTagNames API can still be used as long as none of the new configuration APIs is used - but we recommend starting to switch over to the new APIs.
  • Capturing metrics - especially Timer and DistributionSummary with percentiles/histograms has some performance overhead. We got feedback that initially we were emitting some metrics with relatively high cardinality on tags with percentiles/histograms of questionable value (only useful in certain scenarios). So, we decided to disable collecting these metrics by default - but still allow them to be collected when enabled manually via the APIs described in PR 33436.

Bugs Fixed

• Change feed pull API is using an incorrect key value for collection lookup, which can result in using the old collection in collection recreate scenarios. - See PR 33178

Other Changes

• Give a meaningful name to the GlobalEndpointManager worker thread. - See PR 33507
• Adding activity id in header of gateway address refresh call. - See PR 33074
• Direct mode - RNTBD connection health check improvements in RntbdClientChannelHealthChecker to allow recovering quicker when existing connections get broken (without TCP close or reset, just timeouts because packets get dropped). - See PR 33464 and - See PR 33566

4.40.0 (2023-01-13)

Features Added

• Added retryAfterInMs to StoreResult in CosmosDiagnostics - See PR 31219
• Added CosmosDiagnostics to readMany API - See PR 32290

Bugs Fixed

• Fixed issue on noisy CancellationException log - See PR 31882
• Fixed issue with TracerProvider constructor inadvertently disabling tracing when isClientMetricsEnabled is true - See PR 32787
• Added improvement in handling for idle connection being closed unexpectedly - See PR 32936

Other Changes

• Reduced log noisiness when bulk ingestion completes and sink is already terminated or cancelled. - See PR 32601
• Optimized the readMany API to make use of point reads when a single item is requested for a given physical partition - See PR 31723
• Added cross region retries for data plane, query plan and metadata requests failed with http timeouts - See PR 32450

4.39.0 (2022-11-16)

Bugs Fixed

• Fixed a rare race condition for query plan cache exceeding the allowed size limit - See PR 31859
• Added improvement in RntbdClientChannelHealthChecker for detecting continuous transit timeout. - See PR 31544
• Fixed an issue in replica validation where addresses may have not sorted properly when replica validation is enabled. - See PR 32022
• Fixed unicode char handling in Uris in Cosmos Http Client. - See PR 32058
• Fixed an eager prefetch issue to lazily prefetch pages on a query - See PR 32122

Other Changes

• Shaded MurmurHash3 of apache commons-codec to enable removing of the guava dependency - CVE-2020-8908 - See PR 31761
• Updated test dependency of testng to version 7.5 - See PR 31761
• Reduced the logging noise level on CancellationExceptions from RntbdReporter.reportIssue. - See PR 32175

4.38.1 (2022-10-21)

Other Changes

• Updated test dependency of apache commons-text to version 1.10.0 - CVE-2022-42889 - See PR 31674
• Updated jackson-databind dependency to 2.13.4.2 - CVE-2022-42003 - See PR 31559

4.38.0 (2022-10-12)

Features Added

• Added option to set throughput control group name on per-request level for batch and bulk operations. - See PR 31362

4.37.1 (2022-10-07)

Bugs Fixed

• Fixed incorrect RU metric reporting in micrometer metrics. - See PR 31307
• Enabled failover to preferred locations in the case of single-write/multi-read region enabled account for read in Gateway mode and for metadata requests in Direct mode. - More details about the Bug: Cosmos DB Client gets stuck in timeout retry loop. - See PR 31314

Other Changes

• Added SslHandshakeTimeout minimum duration config - See PR 31298

4.37.0 (2022-09-30)

Features Added

• Added new preview APIs to ChangeFeedProcessor for handling all versions and deletes changes - See PR 30399
• Added option to emit client-side metrics via micrometer.io MeterRegistry. - See PR 30065

Bugs Fixed

• Fixed a race condition that could result in a memory/thread leak for BulkExecutor instances (and their corresponding cosmos-daemon-BulkExecutor-* thread). - See PR 31082

Other Changes

• Enable replica validation by default - See PR 31159

4.36.0 (2022-09-15)

Other Changes

• Added system property to turn on replica validation - See PR 29767
• Added improvement to avoid retry on same replica that previously failed with 410, 408 and >= 500 status codes - See PR 29767
• Improvement when connectionEndpointRediscoveryEnabled is enabled - See PR 30281
• Added replica validation for Unknown status if openConnectionsAndInitCaches is used and replica validation is enabled - See PR 30277

4.35.1 (2022-08-29)

Other Changes

• Added non-blocking async lazy cache to improve upgrade and scaling scenarios - See PR 29322
• Improved performance of StoreResponse using array headers - See PR 30596

4.35.0 (2022-08-19)

Other Changes

• Updated netty library version to 4.1.79.Final.
• Updated reactor-core version to 3.4.21.

4.34.0 (2022-08-05)

Features Added

• GA of DedicatedGatewayRequestOptions API. See PR 30142

Other Changes

• Added requestSessionToken to CosmosDiagnostics - See PR 29516
• Reverted changes of PR 29944 to avoid possible regression when customers use id with special characters and their account is on ComputeGateway already. - See PR 30283
• Added changes for changeFeed APIs for handling all versions and deletes changes. See PR 30161

4.33.1 (2022-07-22)

Bugs Fixed

• Fixed issues with "id" encoding when using special characters that should be allowed in the "id" property of a document. - See PR 29944
• Fixed NotFoundException for queryChangeFeed with staled feed range after split - See PR 29982
• Fixed ForbiddenException for azure instance metadata service requests if proxy is configured for client telemetry. - See PR 30004
• Fixed a regression introduced in PR 27440 which causes an IllegalArgumentException for distinct queries when using POJO serialization. - See PR 30025
• Fixed IllegalArgumentException when trying to update targetThroughput(Threshold) without process restart. - See PR 30049

Other Changes

• Supported username and password to be used in GatewayConnectionConfig.setProxy . - See PR 30004

4.33.0 (2022-07-14)

Other Changes

• Updated netty library version to 4.1.78.Final.
• Updated reactor-core version to 3.4.19.

4.32.1 (2022-06-30)

Bugs Fixed

• Added a fix for CloneNotSupportedException when trying to instantiate a Cosmos(Async)Client and using a MAC provider which would not support cloning. Instead, this should be handled gracefully (less ideal perf is expected - but functionally it should work.) - See PR 29719

4.32.0 (2022-06-27)

Other Changes

• Remove requires io.netty.transport.epoll from module-info - See PR 29509
• Converted from durationInMicroSec to durationInMilliSecs in CosmosDiagnostics - See PR 29643

4.31.0 (2022-06-08)

Bugs Fixed

• Fixed Store Response headers case insensitivity. - See PR 29268

Other Changes

• Add IdleStateHandler after Ssl handshake has completed and improvement on keeping inner exceptions for creating new channels. - See PR 29253

4.30.1 (2022-06-01)

Other Changes

• Made CosmosPatchOperations thread-safe. Usually there is no reason to modify a CosmosPatchOperations instance concurrently form multiple threads - but making it thread-safe acts as protection in case this is done anyway - See PR 29143
• Added system property to allow overriding proxy setting for client telemetry endpoint. - See PR 29022
• Added additional information about the reason on Rntbd channel health check failures. - See PR 29174

4.30.0 (2022-05-20)

Bugs Fixed

• Fixed bubbling of Errors in case of any java.lang.Error - See PR 28620
• Fixed an issue with creating new Throughput control client item when enableThroughputControlGroup is being called multiple times with the same throughput control group. - See PR 28905
• Fixed a possible dead-lock on static ctor for CosmosException when the runtime is using custom class loaders. - See PR 28912 and PR 28961

Other Changes

• Added exceptionMessage and exceptionResponseHeaders to CosmosDiagnostics in case of any exceptions - See PR 28620
• Improved performance of query plan cache by using ConcurrentHashMap with a fixed size of 1000 - See PR 28537
• Changed 429 (Throttling) retry policy to have an upper bound for the back-off time of 5 seconds - See PR 28764
• Improved openConnectionsAndInitCaches by using rntbd context negotiation. - See PR 28470
• Enable connectionEndpointRediscoveryEnabled by default - See PR 28471

4.29.1 (2022-04-27)

Bugs Fixed

• Fixed AAD authentication for CosmosPatchOperations - See PR 28537

4.29.0 (2022-04-22)

Features Added

• Added Beta API continueOnInitError in ThroughputControlGroupConfigBuilder - See PR 27702

Bugs Fixed

• Added improvement for handling idle connection close event when connectionEndpointRediscoveryEnabled is enabled - See PR 27242
• Fixed memory leak issue related to circular reference of CosmosDiagnostics in StoreResponse and CosmosException - See PR 28343

4.28.1 (2022-04-08)

Other Changes

• Updated jackson dependency to 2.13.2 and jackson-databind dependency to 2.13.2.1 - CVE-2020-36518. - See PR 27847

4.28.0 (2022-03-18)

Features Added

• Added the "VM Unique ID" - see Accessing and Using Azure VM Unique ID - to the request diagnostics. This information helps to simplify investigating any network issues between an application hosted in Azure and the corresponding Cosmos DB service endpoint. - See PR 27692
• Added overload of read api on ClientEncryptionKey with request options for cosmos encrytion project. - See PR 27210

Bugs Fixed

• Added decodeTime in CosmosDiagnostics - See PR 22808

Other Changes

• Reduced CPU usage for some String operations by switching to APIs that don't compile a pattern for each call. - See PR 27654
• Reduced GC (Garbage Collection) pressure when executing queries returning many documents by pushing down type conversion. - See PR 27440

4.27.0 (2022-03-10)

Bugs Fixed

• Fixed an issue in CosmosPagedIterable resulting in excessive memory consumption due to unbounded prefetch of pages when converting the CosmosPagedIterable into an Iterator<FeedResponse<T>>. - See PR 27237 and PR 27299
• Fixed a NullPointerException in CosmosDiagnostics isDiagnosticsCapturedInPagedFlux - See PR 27261
• Fixed an issue with allowing null values for add, set and replace operations in Patch API - See PR 27501
• Fixed an issue with top query when top x is greater than the total number of items in the database - See PR 27377
• Fixed synchronized lists and maps for order by query race condition - See PR 27142

4.26.0 (2022-02-11)

Features Added

• Added support to resume a "multi order by query" from a continuation token - See PR 26267
• Added RNTBD - open connections information in ClientTelemetry.
• Added Beta API to set custom Reactor scheduler to be used by the ChangeFeedProcessor implementation - See PR 26750
• Added support for correlating queries executed via the Cosmos Spark connector with service-telemetry based on the correlationActivityId - See PR 26908

Bugs Fixed

• Fixed an issue in ChangeFeedProcessor related to leases that were found expired - See PR 26750
• Fixed an issue with query plan caching double initialization - See PR 26825

Other Changes

• Added support for logging CosmosDiagnostics for empty pages through system property for cross partition query - See PR 26869

4.26.0-beta.1 (2022-01-25)

Features Added

• Added support to resume a "multi order by query" from a continuation token - See PR 26267

4.25.0 (2022-01-14)

Bugs Fixed

• Fixed NullPointerException in bulk mode for deleted/recreated containers.
• Added missing exception cause in case of InternalServerException.

4.24.0 (2021-12-21)

Features Added

• Added implementation for CosmosAuthorizationTokenResolver.
• Scoped session token per partition level for gateway call.

Bugs Fixed

• Fixed issue causing CosmosException with statusCode 0 to be thrown on connectivity issues for Gateway.
• Addressed potential race condition in ChangeFeedProcessor when check-pointing current state.

4.23.0 (2021-12-10)

Features Added

• Added setMaxMicroBatchConcurrency and getMaxMicroBatchConcurrency in CosmosBulkExecutionOptions.

Bugs Fixed

• Bulk execution improvement triggering a flush when total payload size exceeds the max payload size limit.
• Bulk execution improvement shortening the flush interval when the Flux of incoming operations signals completion.
• Fixed metadata cache refresh scenario on collection recreate for gateway mode.

4.22.0 (2021-12-03)

Features Added

• Added Beta API getContactedRegionNames in CosmosDiagnostics.

Bugs Fixed

• Fixed IllegalStateException for getFeedRanges when container recreated with same name.
• Made Cosmos spans CLIENT which will allow Azure Monitor to show HTTP calls nested under Cosmos spans.
• Fixed ConcurrentModificationException when getting NotFoundException with session consistency.

4.21.1 (2021-11-13)

Bugs Fixed

• Fixed an issue in ChangeFeedProcessor where processing stops in some rare cases because of a race condition can occur which prevents work to be promptly assigned to other instances.

4.21.0 (2021-11-12)

Features Added

• GA of CosmosPatch, CosmosBatch and CosmosBulk API.
• GA of ChangeFeedProcessorState API.
• Added networkRequestTimeout API for DirectConnectionConfig.

Bugs Fixed

• Override the default keep-alive config on linux to keep connections open and detect a broken connection faster.

Other Changes

• Removed deprecated BulkExecutionOptions.
• Removed deprecated BulkExecutionThresholds.
• Removed deprecated BulkItemRequestOptions.
• Removed deprecated BulkItemRequestOptionsBase.
• Removed deprecated BulkOperations.
• Removed deprecated BulkPatchItemRequestOptions.
• Removed deprecated BulkProcessingOptions.
• Removed deprecated BulkProcessingThresholds.
• Removed deprecated TransactionalBatch.
• Removed deprecated TransactionalBatchItemRequestOptions.
• Removed deprecated TransactionalBatchItemRequestOptionsBase.
• Removed deprecated TransactionalBatchOperationResult.
• Removed deprecated TransactionalBatchPatchItemRequestOptions.
• Removed deprecated TransactionalBatchRequestOptions.
• Removed deprecated TransactionalBatchResponse.

4.20.1 (2021-10-27)

Bugs Fixed

• Removed AfterBurner module for Java version 16+.
• Fixed BadRequestException issue when using Distinct with matched orderBy queries via continuationToken.

4.20.0 (2021-10-14)

Features Added

• Enabling query plan cache by default.

Bugs Fixed

• Fixed issue with bulk reads when contentResponseOnWrite is not explicitly enabled on the cosmos client.

4.19.1 (2021-09-24)

Features Added

• Added support to config retry count for openConnectionsAndInitCaches.

Bugs Fixed

• Fixed ReadMany Api on partition split.
• Removed full exception trace from 404 error on open telemetry.
• Fixed issue with onErrorDropped being called when using concatWith in QuorumReader.

4.20.0-beta.1 (2021-09-22)

Features Added

• Added support to config retry count for openConnectionsAndInitCaches.

4.19.0 (2021-09-09)

New Features

• Added support for distinct count queries.
• Added support for capturing IndexMetrics in CosmosQueryRequestOptions.

Bugs Fixed

• Added support to switch off IO thread for response processing.
• Fixed issue for resuming order by queries from continuation token that includes undefined/null.

Other Changes

• Renamed BulkExecutionOptions to CosmosBulkExecutionOptions.
• Renamed BulkExecutionThresholds to CosmosBulkExecutionThresholdsState.
• Renamed BulkItemRequestOptions to CosmosBulkItemRequestOptions.
• Renamed BulkItemRequestOptionsBase to CosmosBulkItemRequestOptionsBase.
• Renamed BulkOperations to CosmosBulkOperations.
• Renamed BulkPatchItemRequestOptions to CosmosBulkPatchItemRequestOptions.
• Renamed TransactionalBatch to CosmosBatch.
• Renamed TransactionalBatchItemRequestOptions to CosmosBatchItemRequestOptions.
• Renamed TransactionalBatchItemRequestOptionsBase to CosmosBatchItemRequestOptionsBase.
• Renamed TransactionalBatchOperationResult to CosmosBatchOperationResult.
• Renamed TransactionalBatchPatchItemRequestOptions to CosmosBatchPatchItemRequestOptions.
• Renamed TransactionalBatchRequestOptions to CosmosBatchRequestOptions.
• Renamed TransactionalBatchResponse to CosmosBatchResponse.
• Renamed processBulkOperations to executeBulkOperations API.
• Renamed executeTransactionalBatch to executeCosmosBatch API.
• Moved CosmosBulkItemResponse.java to com.azure.cosmos.models package.
• Moved CosmosBulkOperationResponse.java to com.azure.cosmos.models package.
• Moved CosmosItemOperation.java to com.azure.cosmos.models package.
• Moved CosmosItemOperationType.java to com.azure.cosmos.models package.
• Moved CosmosPatchOperations.java to com.azure.cosmos.models package.

4.19.0-beta.1 (2021-09-02)

Bugs Fixed

• Added support to switch off IO thread for response processing.

4.18.0 (2021-08-16)

New Features

• Integrated cosmos diagnostics with open telemetry tracer.

Bugs Fixed

• Added reactor netty timeline to query plan calls.
• Fixed serialization warning on clientSideRequestDiagnostics.
• Fixed an issue when IdleEndpointTimeout is set to 0 in DirectConnectionConfig.
• Added retry for PrematureCloseException.
• Fixed an issue where application hangs in bulk executor.
• Fixed an issue which preventing recovery from 410/0 after split.

4.18.0-beta.1 (2021-08-11)

Bugs Fixed

• Added TransportRequestChannelAcquisitionContext in CosmosDiagnostics.

4.17.0 (2021-07-08)

New Features

• Adjust MicroBatchSize dynamically based on throttling rate in BulkExecutor.

Bugs Fixed

• Fixed an issue with AAD authentication in Strong and BoundedStaleness in direct mode.
• Fixed an issue where ChangeFeedProcessor was resuming from zero continuation token for new partitions on partition splits.

4.16.0 (2021-06-11)

Bugs Fixed

• Fixed an issue on handling partition splits during bulk operations in Gateway Mode.
• Fixed an issue with NumberFormatException happening on requests on large containers.
• Fixed an issue with BackOff time in ThroughputController.
• Fixed an issue with ThroughputControl calculation.
• Improved behavior when CosmosClientBuilder.userAgentSuffix exceeds 64 characters. Now userAgentSuffix will be honored as long as total userAgent value is less than 256 characters or truncated to fit the 256 characters limited.
• Fixed issue when using client-side throughput control in combination with bulk upserts, previously resulting in unnecessarily upserting documents multiple times in some cases when getting throttled.

4.16.0-beta.1 (2021-05-20)

Bugs Fixed

• No changes from previous version, releasing for compatibility issues with cosmos encryption modules.

4.15.0 (2021-05-12)

New Features

• Added backendLatencyInMs in CosmosDiagnostics for DIRECT connection mode.
• Added retryContext in CosmosDiagnostics for query operations.

Bugs Fixed

• Fixed ignored HttpClient decoder configuration issue.
• Fixed incorrect connection mode issue in CosmosDiagnostics.
• Fixed issue with handling collisions in the effective partition key.
• Fixed CosmosQueryRequestOptions NPE in readAllItems API.

4.15.0-beta.2 (2021-04-26)

Bugs Fixed

• No changes from previous version, releasing for compatibility issues with cosmos encryption modules.

4.15.0-beta.1 (2021-04-07)

Bugs Fixed

• No changes from previous version, releasing for compatibility issues with cosmos encryption modules.

4.14.0 (2021-04-06)

New Features

• General Availability for readMany() API in CosmosAsyncContainer and CosmosContainer.
• General Availability for handle() API in CosmosPagedFlux and CosmosPagedIterable.
• Upgraded Jackson to patch version 2.12.2.
• Exposed getDocumentUsage and getDocumentCountUsage() APIs in FeedResponse to retrieve document count metadata.

Bugs Fixed

• Allowed CosmosPagedFlux#handle() and CosmosPagedIterable#handle() API for chaining.
• Removed AfterBurner module usage from CosmosException causing the warning logs.
• Fixed issue of duplicate processing of items on the same Change Feed Processor instance.
• Return RequestTimeoutException on client side timeout for write operations.

4.13.1 (2021-03-22)

Bugs Fixed

• Fixed issue preventing recovery from 410 status code and 0 sub status code due to stale Gateway caches when threads in parallel scheduler are starved.
• Fixed warning caused because of afterburner module usage in CosmosDiagnostics.
• Query performance improvements.

4.13.0 (2021-03-11)

Important

This release updates reactor-core and reactor-netty major versions to 2020.0.4 (Europium) release train.

New Features

• Updated reactor-core version to 3.4.3.
• Updated reactor-netty version to 1.0.4.
• Added Diagnostics for queries.

Bugs Fixed

• Fixed OrderBy for mixed and undefined types for cross partition queries.
• Fixed readAllItems with resourceToken.
• Fixed issue with resourceToken usage in Gateway connection mode.
• Fixed issues with point operations with permissions in Gateway connection mode.

4.12.0 (2021-02-09)

New Features

• Added connection endpoint rediscovery feature to help reduce and spread-out high latency spikes.
• Added changeFeed pull model beta API.
• Added support for resuming query from a pre split continuation token after partition split.
• Optimized query execution time by caching query plan for single partition queries with filters and orderby.

Bugs Fixed

• Fixed telemetry deserialization issue.
• Skip session token for query plan, trigger and UDF.
• Improved session timeout 404/1002 exception handling.

4.11.0 (2021-01-15)

New Features

• Added Beta API for Patch support.
• Updated reactor-core library version to 3.3.12.RELEASE.
• Updated reactor-netty library version to 0.9.15.RELEASE.
• Updated netty library version to 4.1.54.Final.

Bugs Fixed

• Fixed RntbdServiceEnpoint close issue.
• Improved the latency and throughput for writes when multiplexing.

4.10.0 (2020-12-14)

New Features

• Added Conflict API support.

4.9.0 (2020-12-11)

New Features

• Added Beta API for Bulk Operations.
• Added getRegionsContacted API in CosmosDiagnostics.
• Added Diagnostics for CosmosStoredProcedureResponse.
• Added trouble shooting guide links to CosmosException.

Bugs Fixed

• Adding automatic retries on client-side transient failures on writes while possible with still being idempotent.
• Fixed NPE on getDiagnostics for CosmosStoredProcedureResponse.
• Fixed empty resourceAddress in CosmosException.

4.8.0 (2020-10-27)

New Features

• Added contentResponseOnWriteEnabled feature to CosmosItemRequestOptions.

Bugs Fixed

• Fixed an issue which may affect query behaviour when resuming from a continuation token.

4.7.1 (2020-10-21)

Bugs Fixed

• Improved the 449 retry policy to force back-off on initial retry and start with shorter back-offs.

4.7.0 (2020-10-17)

New Features

• Added Beta API for transactional batches.

Bugs Fixed

• Fixed an error parsing query metrics on locales with ',' as floating-point delimiter.
• Stopped excessive regional fail-overs when retrieving responses with invalid json from Gateway.
• Fixed an error resulting in certain queries unnecessarily being expected in the Gateway even when using Direct transport.
• Reduced logging noise level by handling SSLException on channel closure.
• Improved efficiency of retry logic for "404 - ReadSession not available" errors.

4.6.0 (2020-09-30)

New Features

• Added new API to support AAD role-based access control in Cosmos. This is a preview feature which needs to be enabled at the account settings.
• Added handler API(beta) to CosmosPagedFlux/CosmosPagedIterable to be invoked on every response.

4.5.2 (2020-09-29)

Bugs Fixed

• Increased robustness of query execution and fetching metadata cache in case of intermittent connectivity issues.

4.5.1 (2020-09-25)

Bugs Fixed

• Added preview implementation for ChangeFeedProcessor which allows for a more detailed view of the current state.
• Fixed Multiple partition supervisor tasks running simultaneously if leaseAcquireInterval is smaller than leaseRenewInterval.
• Improved Diagnostics for Rntbd connectivity.
• Stopped onError Dropped events from leaking into default reactor hook.

4.5.0 (2020-09-16)

New Features

• Increased robustness of the Rntbd stack in case of intermittent connectivity issues.
• Improved latency in case of intermittent connectivity issues to individual backend replicas for multi-region accounts avoiding initiation of unnecessary regional fail-overs.

4.4.0 (2020-09-12)

Bugs Fixed

• Fixed RequestTimeoutException when enabling netty-tcnative-boringssl dependency.
• Fixed memory leak issue on Delete operations in GATEWAY mode.
• Fixed a leak in CosmosClient instantiation when endpoint uri is invalid.
• Improved CPU History diagnostics.

4.4.0-beta.1 (2020-08-27)

New Features

• Added new API to efficiently load many documents (via list of pk/id pairs or all documents for a set of pk values).
• Added new deleteItem API.
• Enabled query metrics by default.

Bugs Fixed

• Fixed NPE in GatewayAddressCache.
• Fixing query metric issue for zero item response.
• Improved performance (reduced CPU usage) for address parsing and Master-Key authentication.

4.3.2-beta.2 (2020-08-17)

Bugs Fixed

• No changes from previous version, releasing for compatibility issues with spring data modules.

4.3.2-beta.1 (2020-08-14)

Bugs Fixed

• Fixed issue in RntbdServiceEndpoint to avoid early closure of an unused TCP connection.

4.3.1 (2020-08-13)

Bugs Fixed

• Fixed issue with GROUP BY query, where it was returning only one page.
• Fixed user agent string format to comply with central SDK guidelines.
• Enhanced diagnostics information to include query plan diagnostics.

4.3.0 (2020-07-29)

New Features

• Updated reactor-core library version to 3.3.8.RELEASE.
• Updated reactor-netty library version to 0.9.10.RELEASE.
• Updated netty library version to 4.1.51.Final.
• Added new overload APIs for upsertItem with partitionKey.
• Added open telemetry tracing support.

Bugs Fixed

• Fixed issue where SSLException gets thrown in case of cancellation of requests in GATEWAY mode.
• Fixed resource throttle retry policy on stored procedures execution.
• Fixed issue where SDK hangs in log level DEBUG mode.
• Fixed periodic spikes in latency in Direct mode.
• Fixed high client initialization time issue.
• Fixed http proxy bug when customizing client with direct mode and gateway mode.
• Fixed potential NPE in users passes null options.
• Added timeUnit to requestLatency in diagnostics string.
• Removed duplicate uri string from diagnostics string.
• Fixed diagnostics string in proper JSON format for point operations.
• Fixed issue with .single() operator causing the reactor chain to blow up in case of Not Found exception.

4.2.0 (2020-07-14)

New Features

• Added script logging enabled API to CosmosStoredProcedureRequestOptions.
• Updated DirectConnectionConfig default idleEndpointTimeout to 1h and default connectTimeout to 5s.

Bugs Fixed

• Fixed issue where GatewayConnectionConfig idleConnectionTimeout was overriding DirectConnectionConfig idleConnectionTimeout.
• Fixed responseContinuationTokenLimitInKb get and set APIs in CosmosQueryRequestOptions.
• Fixed issue in query and change feed when recreating the collection with same name.
• Fixed issue with top query throwing ClassCastException.
• Fixed issue with order by query throwing NullPointerException.
• Fixed issue in handling of cancelled requests in direct mode causing reactor onErrorDropped being called.

4.1.0 (2020-06-25)

New Features

• Added support for GROUP BY query.
• Increased the default value of maxConnectionsPerEndpoint to 130 in DirectConnectionConfig.
• Increased the default value of maxRequestsPerConnection to 30 in DirectConnectionConfig.

Bugs Fixed

• Fixed issues with order by query returning duplicate results when resuming by using continuation token.
• Fixed issues with value query returning null values for nested object.
• Fixed null pointer exception on request manager in RntbdClientChannelPool.

4.0.1 (2020-06-10)

New Features

• Renamed QueryRequestOptions to CosmosQueryRequestOptions.
• Updated ChangeFeedProcessorBuilder to builder pattern.
• Updated CosmosPermissionProperties with new container name and child resources APIs.

Bugs Fixed

• Fixed ConnectionPolicy toString() Null Pointer Exception.

4.0.1-beta.4 (2020-06-03)

New Features

• Added more samples & enriched docs to CosmosClientBuilder.
• Updated CosmosDatabase & CosmosContainer APIs with throughputProperties for autoscale/autopilot support.
• Renamed CosmosClientException to CosmosException.
• Replaced AccessCondition & AccessConditionType by ifMatchETag() & ifNoneMatchETag() APIs.
• Merged all Cosmos*AsyncResponse & CosmosResponse types to a single CosmosResponse type.
• Renamed CosmosResponseDiagnostics to CosmosDiagnostics.
• Wrapped FeedResponseDiagnostics in CosmosDiagnostics.
• Removed jackson dependency from azure-cosmos & relying on azure-core.
• Replaced CosmosKeyCredential with AzureKeyCredential type.
• Added ProxyOptions APIs to GatewayConnectionConfig.
• Updated SDK to use Instant type instead of OffsetDateTime.
• Added new enum type OperationKind.
• Renamed FeedOptions to QueryRequestOptions.
• Added getETag() & getTimestamp() APIs to Cosmos*Properties types.
• Added userAgent information in CosmosException & CosmosDiagnostics.
• Updated new line character in Diagnostics to System new line character.
• Removed readAll* APIs, use query select all APIs instead.
• Added ChangeFeedProcessor estimate lag API.

Bugs Fixed

• Fixed issue with parsing of query results in case of Value order by queries.

4.0.1-beta.3 (2020-05-15)

New Features

• Added autoscale/autopilot throughput provisioning support to SDK.
• Replaced ConnectionPolicy with new connection configs. Exposed DirectConnectionConfig & GatewayConnectionConfig APIs through CosmosClientBuilder for Direct & Gateway mode connection configurations.
• Moved JsonSerializable & Resource to implementation package.
• Added contentResponseOnWriteEnabled API to CosmosClientBuilder which disables full response content on write operations.
• Exposed getETag() APIs on response types.
• Moved CosmosAuthorizationTokenResolver to implementation.
• Renamed preferredLocations & multipleWriteLocations API to preferredRegions & multipleWriteRegions.
• Updated reactor-core to 3.3.5.RELEASE, reactor-netty to 0.9.7.RELEASE & netty to 4.1.49.Final versions.
• Added support for analyticalStoreTimeToLive in SDK.

Bugs Fixed

• Fixed socket leak issues with Direct TCP client.
• Fixed orderByQuery with continuation token bug.

4.0.1-beta.2 (2020-04-21)

New Features

• CosmosClientException extends AzureException.
• Removed maxItemCount & requestContinuationToken APIs from FeedOptions instead using byPage() APIs from CosmosPagedFlux & CosmosPagedIterable.
• Introduced CosmosPermissionProperties on public surface for Permission APIs.
• Removed SqlParameterList type & replaced with List
• Fixed multiple memory leaks in Direct TCP client.
• Added support for DISTINCT queries.
• Removed external dependencies on fasterxml.uuid, guava, commons-io, commons-collection4, commons-text.
• Moved CosmosPagedFlux & CosmosPagedIterable to utils package.
• Updated netty to 4.1.45.Final & project reactor to 3.3.3 version.
• Updated public rest contracts to Final classes.
• Added support for advanced Diagnostics for point operations.

Bugs Fixed

• ChangeFeedProcessor bug fix for handling partition splits & when partition not found.
• ChangeFeedProcessor bug fix when synchronizing lease updates across different threads.

4.0.1-beta.1 (2020-03-10)

New Features

• Updated package to com.azure.cosmos
• Added models package for model / rest contracts
• Added utils package for CosmosPagedFlux & CosmosPagedIterable types.
• Updated public APIs to use Duration across the SDK.
• Added all rest contracts to models package.
• RetryOptions renamed to ThrottlingRetryOptions.
• Added CosmosPagedFlux & CosmosPagedIterable pagination types for query APIs.
• Added support for sharing TransportClient across multiple instances of CosmosClients using a new API in the CosmosClientBuilder#connectionSharingAcrossClientsEnabled(true)
• Query Optimizations by removing double serialization / deserialization.
• Response Headers optimizations by removing unnecessary copying back and forth.
• Optimized ByteBuffer serialization / deserialization by removing intermediate String instantiations.

Bugs Fixed

• Fixed race condition causing ArrayIndexOutOfBound exception in StoreReader