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deps: Bump MongoDB.Driver from 3.5.2 to 3.8.0#1198

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deps: Bump MongoDB.Driver from 3.5.2 to 3.8.0#1198
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dependabot/nuget/Libraries/Spark.Mongo/MongoDB.Driver-3.8.0

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@dependabot dependabot Bot commented on behalf of github Apr 25, 2026

Updated MongoDB.Driver from 3.5.2 to 3.8.0.

Release notes

Sourced from MongoDB.Driver's releases.

3.8.0

This is the general availability release for the 3.8.0 version of the driver.

The main new features in 3.8.0 include:

[!IMPORTANT]
Added support for MongoDB ’s Intelligent Workload Management (IWM) and ingress connection rate limiting features. The driver now gracefully handles write-blocking scenarios and optimizes connection establishment during high-load conditions to maintain application availability. More details in CSHARP-5802: Client Backpressure Support

  • CSHARP-5882: Support storedSource in vector search indexes and returnStoredSource in $vectorSearch queries
  • CSHARP-5769: Implement hasAncestor, hasRoot, and returnScope for Atlas Search
  • CSHARP-5646: Implement vector similarity match expressions
  • CSHARP-5762: MongoDB Vector Search now supports vector search against nested embeddings and arrays of embeddings.
  • CSHARP-5884: Add new fields for Auto embedding in Atlas Vector search indexes

MongoDB v8.3 Compatible Features:

  • CSHARP-5852: Expression to determine the subtype of BinData field
  • CSHARP-5713: Allow native conversion from string to BSON object
  • CSHARP-5949: $convert should allow any type to be converted to string
  • CSHARP-5818: Allow users to generate a hash from a UTF-8 string or binary data
  • CSHARP-5950: Support base conversion in $convert
  • CSHARP-5847: Support Select/SelectMany/Where index overloads in LINQ provider
  • CSHARP-5828: Add Rerank stage builder
  • CSHARP-5656: Support Aggregation Operator to generate random object ids
  • CSHARP-5973: Support SkipWhile/TakeWhile index overloads in LINQ provider
  • CSHARP-5825: Support (de)serialization between BSON and EJSON
  • CSHARP-5655: Support regular expressions in $replaceAll search string and $split delimiter

Improvements:

  • CSHARP-5887: Simplify retryable read and writes
  • CSHARP-2593: Add numeric error code to default error message in NativeMethods.CreateException
  • CSHARP-2150: Add check that the serializer's ValueType matches the type when registering the serializer

Fixes:

  • CSHARP-5947: Increase SingleServerReadBinding timeout
  • CSHARP-2862: Check that max pool size is never less than min pool size in connection string
  • CSHARP-5935: Command activities may be skipped when using pooled connection
  • CSHARP-5952: SerializerFinder resolve wrong serializer for BsonDocument members

Maintenance:

The full list of issues resolved in this release is available at CSHARP JIRA project.

Documentation on the .NET driver can be found here.

3.7.1

This is a patch release that contains fixes and stability improvements:

  • CSHARP-5916: ExpressionNotSupportedException when a $set stage expression references a member of a captured constant
  • CSHARP-5918: ExpressionNotSupportedException when a $set stage expression uses ToList method
  • CSHARP-5917: Mql.Field should lookup for default serializer if null is provided as a bsonSerializer parameter
  • CSHARP-5920: SerializerFinder wrapping serializer into Upcast/Downcast serializer breaks some expressions translation
  • CSHARP-5905: Fix bug when using EnumRepresentationConvention or ObjectSerializerAllowedTypesConvention
  • CSHARP-5928: LINQ Provider throws misleading exception if expression translation is not supported
  • CSHARP-5929: Improve SerializerFinder to proper handling of IUnknowableSerializer

The full list of issues resolved in this release is available at CSHARP JIRA project.

Documentation on the .NET driver can be found here.

3.7.0

This is the general availability release for the 3.7.0 version of the driver.

The main new features in 3.7.0 include:

  • CSHARP-3124: OpenTelemetry implementation
  • CSHARP-5736: Expose atClusterTime parameter in snapshot sessions
  • CSHARP-5805: Add support for server selection's deprioritized servers to all topologies
  • CSHARP-5712: WithTransaction API retries too frequently
  • CSHARP-5836: Support new Reverse with array overload introduced by .NET 10
  • CSHARP-4566: Support filters comparing nullable numeric or char field to constant
  • CSHARP-5606: Support ConvertChecked as well as Convert

Improvements:

  • CSHARP-5841: Rewrite $elemMatch with $or referencing implied element due to server limitations
  • CSHARP-5572: Implement new SerializerFinder
  • CSHARP-5861: Use ConnectAsync in synchronous code-path to avoid dead-locks
  • CSHARP-5876: Convert some disposer classes to structs
  • CSHARP-5889: Optimize comparison with nullable constant translation
  • CSHARP-5890: Avoid byte array allocations writing Int64, Double, Decimal128 in ByteBufferStream
  • CSHARP-5888: Optimize CommandEventHelper to avoid redundant message decoding

Fixes:

  • CSHARP-5564: Enum with ushort underlying type is not serialized correctly
  • CSHARP-5654: String.IndexOf comparisons to -1 return incorrect results
  • CSHARP-5866: Avoid raising ClusterDescriptionChangedEvent on unchanged DNS records update
  • CSHARP-5850: Use of an untranslatable property reference in a LINQ expression should be executed client-side
  • CSHARP-5863: The built-in IPAddressSerializer throws when using IPAddress.Any, etc
  • CSHARP-5877: Fix First/Last field path in GroupBy optimizer when source is wrapped
  • CSHARP-5894: Deadlock during concurrent BsonClassMap initialization

The full list of issues resolved in this release is available at CSHARP JIRA project.

Documentation on the .NET driver can be found here.

3.6.0

This is the general availability release for the 3.6.0 version of the driver.

The main new features in 3.6.0 include:

  • CSHARP-5717: Typed builders for vector indexes
  • CSHARP-5812: Support lexical prefilters for vector search
  • CSHARP-5763: Auto-embedding for vector search
  • CSHARP-5737: Add legacy representation for TimeOnly
  • CSHARP-5705: Use standard RID paths in MongoDB.Driver.Encryption packaging
  • CSHARP-5730: Support static String.Compare method
  • CSHARP-1913: Support using Dictionary fields as IEnumerable<KeyValuePair<TKey, TValue>>
  • CSHARP-5779: Support Dictionary Keys and Values properties
  • CSHARP-5786: Add Decimal128 ctor overload for byte/short, for compatibility with net10
  • CSHARP-5793: Map MemoryExtensions Contains and SequenceEqual with null comparer to Enumerable methods with no comparer parameter
  • CSHARP-5749: Support C# 14 changes that result in overloads now binding MemoryExtensions extension methods

Improvements:

  • CSHARP-5675: Where possible, return null for average over the empty set
  • CSHARP-5666: Remove GetBitArray allocations in BsonClassMapSerializer.DeserializeClass
  • CSHARP-5748: Use KeyValuePairSerializer consistently for KeyValuePair
  • CSHARP-5663: Avoid RentedBuffer boxing in DisposableSegment
  • CSHARP-5734: Update doc comments for IBsonIdProvider GetDocumentId method
  • CSHARP-5348: Avoid allocations for Bson*Context
  • CSHARP-5628: Add new boolean expression simplifications to PartialEvaluator
  • CSHARP-5632: Consolidate driver project Type extension methods in Misc\TypeExtensions.cs
  • CSHARP-5785: Optimize LINQ translation for First() and FirstOrDefault() methods with predicates
  • CSHARP-5667: Switch to 'for' loop in BsonClassMapSerializer.SerializeClass to reduce allocations
  • CSHARP-5807: Add benchmarks with strong-typed POCOs

Fixes:

  • CSHARP-5725: C# driver stopped working with Unity since v3.2.0
  • CSHARP-5757: The problem of filtering by derived types

Maintenance:

  • CSHARP-3984: Remove BinaryConnection.DropBox
  • CSHARP-5744: Fix interruptInUse flaky tests
    The full list of issues resolved in this release is available at CSHARP JIRA project.
    Documentation on the .NET driver can be found here.

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---
updated-dependencies:
- dependency-name: MongoDB.Driver
  dependency-version: 3.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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@dependabot dependabot Bot added .NET Pull requests that update .net code dependencies Pull requests that update a dependency file labels Apr 25, 2026
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