MongoDB.Bson 3.5.1

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
MongoDB.Driver.Core
Core Component of the Official MongoDB .NET Driver.
48
MongoDB.Driver.Core
Core Component of the Official MongoDB .NET Driver.
45
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver.
45
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver
44
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver
43
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver.
43
MongoDB.Driver
Official .NET driver for MongoDB.
43
MongoDB.Driver.Core
Core Component of the Official MongoDB .NET Driver.
42
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver
42
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver.
42
MongoDB.Driver
Official .NET driver for MongoDB.
42
MongoDB.Driver
Official .NET driver for MongoDB.
41
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver
41
mongocsharpdriver
This package contains the legacy driver. The new driver's package name is MongoDB.Driver.
41

https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.5.1

Version Downloads Last updated
3.5.1 5 11/20/2025
3.5.0 9 9/11/2025
3.4.3 13 8/19/2025
3.4.2 17 7/27/2025
3.4.1 16 7/19/2025
3.4.0 21 5/3/2025
3.3.0 24 3/28/2025
3.2.1 30 2/21/2025
3.2.0 27 2/21/2025
3.1.0 28 12/12/2024
3.0.0 22 10/29/2024
2.30.0 28 10/29/2024
2.29.0 24 9/23/2024
2.28.0 34 8/11/2024
2.27.0 32 6/29/2024
2.26.0 30 6/25/2024
2.25.0 35 8/23/2024
2.24.0 37 3/8/2024
2.23.2 34 3/8/2024
2.23.1 33 3/8/2024
2.23.0 32 3/8/2024
2.22.0 36 3/8/2024
2.21.0 39 3/8/2024
2.20.0 36 7/2/2023
2.19.2 36 3/8/2024
2.19.1 36 3/8/2024
2.19.0 35 3/8/2024
2.18.0 40 3/8/2024
2.17.1 38 3/8/2024
2.17.0 36 3/8/2024
2.16.1 32 3/8/2024
2.16.0 45 3/8/2024
2.15.1 39 3/8/2024
2.15.0 32 3/8/2024
2.14.1 36 3/8/2024
2.14.0 36 3/8/2024
2.14.0-beta1 31 3/8/2024
2.13.3 37 3/8/2024
2.13.2 36 3/8/2024
2.13.1 30 3/8/2024
2.13.0 36 3/8/2024
2.13.0-beta1 31 3/8/2024
2.12.5 35 3/8/2024
2.12.4 31 3/8/2024
2.12.3 36 3/8/2024
2.12.2 35 3/8/2024
2.12.1 37 3/8/2024
2.12.0 35 3/8/2024
2.12.0-beta1 39 3/8/2024
2.11.6 33 3/8/2024
2.11.5 36 3/8/2024
2.11.4 39 4/12/2022
2.11.3 37 3/8/2024
2.11.2 33 3/8/2024
2.11.1 39 3/8/2024
2.11.0 36 3/8/2024
2.11.0-beta2 28 3/8/2024
2.11.0-beta1 33 3/8/2024
2.10.4 41 3/8/2024
2.10.3 30 3/8/2024
2.10.2 37 3/8/2024
2.10.1 30 3/8/2024
2.10.0 35 3/8/2024
2.10.0-beta1 28 3/8/2024
2.9.3 35 3/8/2024
2.9.2 40 3/8/2024
2.9.1 36 3/8/2024
2.9.0 32 3/8/2024
2.9.0-beta2 34 3/8/2024
2.9.0-beta1 35 3/8/2024
2.8.1 33 3/8/2024
2.8.0 34 3/8/2024
2.7.3 39 3/8/2024
2.7.2 32 3/8/2024
2.7.1 35 3/8/2024
2.7.0 34 3/8/2024
2.7.0-beta0001 36 3/8/2024
2.6.1 38 3/8/2024
2.6.0 35 3/8/2024
2.5.1 32 3/8/2024
2.5.0 37 3/8/2024
2.4.4 35 3/8/2024
2.4.3 37 3/8/2024
2.4.2 36 3/8/2024
2.4.1 34 3/8/2024
2.4.0 44 3/8/2024
2.4.0-beta1 31 3/8/2024
2.3.0 39 3/8/2024
2.3.0-rc1 35 3/8/2024
2.3.0-beta1 28 3/8/2024
2.2.4 33 3/8/2024
2.2.3 34 3/8/2024
2.2.2 33 3/8/2024
2.2.1 38 3/8/2024
2.2.0 35 3/8/2024
2.2.0-rc0 29 3/8/2024
2.1.1 31 3/8/2024
2.1.0 32 3/8/2024
2.1.0-rc1 31 3/8/2024
2.1.0-rc0 32 3/8/2024
2.0.2 30 3/8/2024
2.0.1 34 3/8/2024
2.0.0 37 3/8/2024
2.0.0-rc0 35 3/8/2024
2.0.0-beta4 30 3/8/2024
2.0.0-beta3 34 3/8/2024
2.0.0-beta2 30 3/8/2024
2.0.0-beta1 36 3/8/2024