See [changelog](https://github.com/Azure/azure-cosmos-dotnet-v3/blob/main/changelog.md#360) for details. NuGet: https://www.nuget.org/packages/Microsoft.Azure.Cosmos/3.61.0

#### Added - [5579](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5579) Change Feed Processor: Adds Lease container export support - [5709](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5709) Performance: Adds caching for URL-encoded AAD authorization signature - [5731](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5731) DNS dot-suffix: Adds TCP DNS dot-suffix for Direct mode to avoid Kubernetes ndots latency - [5755](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5755) Exceptionless: Adds enabling exception less 400 status code - [5756](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5756) Exceptionless: Adds enabling exception less 404/1002 status code - [5757](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5757) Exceptionless: Adds enabling exception less 403 - [5779](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5779) Direct: Adds Direct package version bump to 3.42.4 - [5786](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5786) Region Availability: Adds missing regions from Direct 3.42.4 - [5788](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5788) Socket Handler: Adds HTTP/2 PING keep-alive to detect broken connections in pool #### Fixed - [5553](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5553) NativeDLLs: Fixes Conditionally include win-x64 native DLLs based on RuntimeIdentifier - [5588](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5588) LINQ: Fixes memory leak from Expression.Compile() in all call sites - [5617](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5617) ChangeFeedProcessor: Fixes first-change skip during initial startup by anchoring StartTime - [5636](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5636) CosmosClientBuilder: Fixes self-referencing loop in GetSerializedConfiguration with STJ TypeInfoResolver - [5748](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5748) Routing: Fixes GetOverlappingRanges CPU overhead from repeated JSON deserialization - [5807](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5807) ChangeFeedProcessor: Fixes lease de-duplication for /partitionKey-partitioned lease containers See full changelog: https://github.com/Azure/azure-cosmos-dotnet-v3/blob/master/changelog.md#3590

### <a name="3.58.0-preview.1"/> [3.58.0-preview.1](https://www.nuget.org/packages/Microsoft.Azure.Cosmos/3.58.0-preview.1) - 2026-2-20 #### Fixed - [5613](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5613) CrossRegionHedgingAvailabilityStrategy: Fixes `ArgumentNullException` race condition in hedging cancellation

### <a name="3.57.0"/> [3.57.0](https://www.nuget.org/packages/Microsoft.Azure.Cosmos/3.57.0) - 2026-1-15 #### Added - [5511](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5511) Tracing: Adds tracing improvements for pkrange refresh calls - [5515](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5515) [FullTextPolicy]: Adds tests for full text policy multi-language support. - [5529](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5529) [Thin Client Integration]: Adds support for store procedure in thinclient mode. - [5535](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5535) [Thin Client Integration]: Adds thinclient header for refresh account data requests. #### Fixed - [5512](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5512) ChangeFeed: Fixes crts field being nullable - [5517](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5517) SystemTextSerializer: Fixes serialization to preserve polymorphic serialization when base type is marked [JsonPolymorphic] - [5498](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5498) Query: Fixes hybrid search query plan optimization to be enabled by default - [5543](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5543) Query: Fixes GetItemQueryIterator to honor the supplied (optional) FeedRange - [5541](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5541) Upsert/Batch: Fixes bug where RequestOptions are not honored for Upsert requests in Bulk Mode - [5544](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5544) Query : Fixes LINQ API to support builtin functions - ARRAY_CONTAINS_ALL and ARRAY_CONTAINS_ANY

### <a name="3.57.0-preview.1"/> [3.57.0-preview.1](https://www.nuget.org/packages/Microsoft.Azure.Cosmos/3.57.0-preview.1) - 2025-12-16 #### Fixed - [5528](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5528) Semantic Reranking: Refactors RerankResult.Document to return string type

### <a name="3.56.0"/> [3.56.0](https://www.nuget.org/packages/Microsoft.Azure.Cosmos/3.56.0) - 2025-11-25 #### Fixed - [5550](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5550) Owner not found: Fixes substatus code 1003 for item operations when container doesn't exist (Direct mode)

### <a name="3.55.0"/> [3.55.0](https://www.nuget.org/packages/Microsoft.Azure.Cosmos/3.55.0) - 2025-11-14 #### Added - [5462](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5462) [VectorIndexPath]: Adds GA IndexingSearchListSize and VectorIndexShardKey - [5470](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5470) Change feed: Adds id and pk to ChangeFeedMetadata for delete operations (Default policy excludes Previous for deletes) - [5474](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5474) Binary Encoding: Adds support to DateTimeOffset type #### Fixed - [5469](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5469) BarrierRequests: Adds 410/LeaseNotFound(1022) fail-fast to cross-region retries by retrying on primary (checks last replica response) - [5475](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5475) Query: Fixes query advisor prefix url links to use aka.ms - [5476](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5476) HttpTimeoutPolicy: Fixes QueryPlan retry gaps (Http POST but its Read) - [5497](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5497) HttpTimeoutPolicy: Fixes PPAF and ThinProxy timeout polices to (6s, 6s, 10s) for both PointReads and NonPointReads

### <a name="3.53.1"/> [3.53.1](https://www.nuget.org/packages/Microsoft.Azure.Cosmos/3.53.1) - 2025-8-28 #### Added - [5364](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5364) TokenCredentialCache: Adds a fallback mechanism to AAD scope override. - [5361](https://github.com/Azure/azure-cosmos-dotnet-v3/pull/5361) Trace: Fixes thread safety issue in Trace class causing high CPU usage and InvalidOperationException