MongoDB.Bson 3.5.0

MongoDB C# Driver

MongoDB.Driver Documentation Documentation License

The official MongoDB .NET/C# driver.

The MongoDB .NET/C# driver follows semantic versioning since v3.0.0 of its releases.

Getting Started

Untyped Documents

using MongoDB.Bson;
using MongoDB.Driver;
var client = new MongoClient("mongodb://localhost:27017");
var database = client.GetDatabase("foo");
var collection = database.GetCollection<BsonDocument>("bar");

await collection.InsertOneAsync(new BsonDocument("Name", "Jack"));

var list = await collection.Find(new BsonDocument("Name", "Jack"))
    .ToListAsync();

foreach(var document in list)
{
    Console.WriteLine(document["Name"]);
}

Typed Documents

using MongoDB.Bson;
using MongoDB.Driver;
public class Person
{
    public ObjectId Id { get; set; }
    public string Name { get; set; }
}
var client = new MongoClient("mongodb://localhost:27017");
var database = client.GetDatabase("foo");
var collection = database.GetCollection<Person>("bar");

await collection.InsertOneAsync(new Person { Name = "Jack" });

var list = await collection.Find(x => x.Name == "Jack")
    .ToListAsync();

foreach(var person in list)
{
    Console.WriteLine(person.Name);
}

Documentation

Questions/Bug Reports

If you’ve identified a security vulnerability in a driver or any other MongoDB project, please report it according to the instructions here.

Contributing

Please see our guidelines for contributing to the driver.

Thank you to everyone who has contributed to this project.

Showing the top 20 packages that depend on MongoDB.Bson.

Packages Downloads
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver
37
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver
35
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver.
35
MongoDB.Driver.Core
Core Component of the Official MongoDB .NET Driver.
34
MongoDB.Driver
Official .NET driver for MongoDB.
34
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver
34
MongoDB.Driver.Core
Core Component of the Official MongoDB .NET Driver.
33
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver
33
MongoDB.Driver.Core
Core Component of the Official MongoDB .NET Driver.
32
MongoDB.Driver
Official .NET driver for MongoDB.
32
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver.
32
MongoDB.Driver.Core
Core Component of the Official MongoDB .NET Driver.
31
MongoDB.Driver
Official .NET driver for MongoDB.
31
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver.
31

https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.5.0

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3.5.0 4 9/11/2025
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2.13.0 29 3/8/2024
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2.11.0 30 3/8/2024
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2.10.1 26 3/8/2024
2.10.0 28 3/8/2024
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2.9.1 31 3/8/2024
2.9.0 27 3/8/2024
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2.7.0 27 3/8/2024
2.7.0-beta0001 27 3/8/2024
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2.5.1 27 3/8/2024
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2.4.4 27 3/8/2024
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2.4.0-beta1 27 3/8/2024
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2.0.0-rc0 28 3/8/2024
2.0.0-beta4 26 3/8/2024
2.0.0-beta3 28 3/8/2024
2.0.0-beta2 25 3/8/2024
2.0.0-beta1 29 3/8/2024