.NET Driver Version 2.13.0-beta1 Release Notes

.NET Driver Version 2.13.0-beta1 Release Notes

This is a beta release for the 2.13.0 version of the driver.

The main new features in 2.13.0-beta1 include:

• Versioned MongoDB API for Drivers
• Implemented change stream oplog parsing code for delta oplog entries
• estimatedDocumentCount() now uses the $collStats aggregation stage instead of the count command
• Reduced lock contention in BsonSerializer.LookupActualType

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.13.0-beta1.md

The full list of JIRA issues that are currently scheduled to be resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.13.0%20ORDER%20BY%20key%20ASC

The list may change as we approach the release date.

Documentation on the .NET driver can be found at:

http://mongodb.github.io/mongo-csharp-driver/

.NET Driver Version 2.12.1 Release Notes

.NET Driver Version 2.12.1 Release Notes

This is a patch release that addresses some issues reported since 2.12.0 was released.

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.12.1.md

The list of JIRA tickets resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.12.1%20ORDER%20BY%20key%20ASC

Documentation on the .NET driver can be found at:

http://mongodb.github.io/mongo-csharp-driver/

Upgrading

There are no known backwards breaking changes in this release.

.NET Driver Version 2.12.0 Release Notes

.NET Driver Version 2.12.0 Release Notes

This is the general availability release for the 2.12.0 version of the driver.

The main new features in 2.12.0 include:

• Support for Hidden Indexes in MongoDB 4.4
• Support for AWS temporary credentials in client-side field level encryption (CSFLE)
• Support for Azure and GCP keystores in client-side field level encryption (CSFLE)
• Support for client-side field level encryption (CSFLE) on Linux and Mac OSX
• Support for GSSAPI/Kerberos on Linux
• Support for .NET Standard 2.1
• Various improvements in serialization performance
• Fixed DNS failures in Kubernetes and Windows Subsystem for Linux (WSL/WSL2)
• Fixed memory leak in heartbeat when cluster is inaccessible
• Fixed SDAM deadlock when invalidating former primary

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.12.0.md

The full list of JIRA issues that are resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.12.0%20ORDER%20BY%20key%20ASC

Documentation on the .NET driver can be found at:

https://docs.mongodb.com/drivers/csharp/

.NET Driver Version 2.11.6 Release Notes

.NET Driver Version 2.11.6 Release Notes

This is a patch release that addresses some issues reported since 2.11.5 was released.

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.11.6.md

The list of JIRA tickets resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.11.6%20ORDER%20BY%20key%20ASC

Documentation on the .NET driver can be found at:

http://mongodb.github.io/mongo-csharp-driver/

Upgrading

There are no known backwards breaking changes in this release.

.NET Driver Version 2.11.5 Release Notes

.NET Driver Version 2.11.5 Release Notes

This is a patch release that addresses some issues reported since 2.11.4 was released.

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.11.5.md

The list of JIRA tickets resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.11.5%20ORDER%20BY%20key%20ASC

Documentation on the .NET driver can be found at:

http://mongodb.github.io/mongo-csharp-driver/

Upgrading

There are no known backwards breaking changes in this release.

.NET Driver Version 2.12.0-beta1 Release Notes

.NET Driver Version 2.12.0-beta1 Release Notes

This is a beta release for the 2.12.0 version of the driver.

The main new features in 2.12.0-beta1 include:

• Support for Hidden Indexes in MongoDB 4.4
• Support for Azure and GCP keystores in client-side field level encryption (CSFLE)
• Fixed memory leak in heartbeat when cluster is inaccessible

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.12.0-beta1.md

The full list of JIRA issues that are currently scheduled to be resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.12.0%20ORDER%20BY%20key%20ASC

The list may change as we approach the release date.

Documentation on the .NET driver can be found at:

http://mongodb.github.io/mongo-csharp-driver/

.NET Driver Version 2.11.4 Release Notes

.NET Driver Version 2.11.4 Release Notes

This is a patch release that addresses some issues reported since 2.11.3 was released.

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.11.4.md

The list of JIRA tickets resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.11.4%20ORDER%20BY%20key%20ASC

Documentation on the .NET driver can be found at:

http://mongodb.github.io/mongo-csharp-driver/

Upgrading

There are no known backwards breaking changes in this release.

v2.11.3

.NET Driver Version 2.11.3 Release Notes

This is a patch release that addresses an issue reported since 2.11.2 was released.

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.11.3.md

The list of JIRA tickets resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.11.3%20ORDER%20BY%20key%20ASC

Documentation on the .NET driver can be found at:

http://mongodb.github.io/mongo-csharp-driver/

Upgrading

Since the only change in this patch release is CSHARP-3218 and that issue is specific to Xamarin you only need
to upgrade from 2.11.2 to 2.11.3 if you are using the driver on Xamarin.

There are no known backwards breaking changes in this release.

v2.11.2

.NET Driver Version 2.11.2 Release Notes

This is a patch release that fixes a bug reported since 2.11.1 was released.

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.11.2.md

The list of JIRA tickets resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.11.2%20ORDER%20BY%20key%20ASC

Documentation on the .NET driver can be found at:

http://mongodb.github.io/mongo-csharp-driver/

Upgrading

Everyone using versions 2.11.0 or 2.11.1 of the C# driver with version 4.4.0 or later of the server should upgrade to 2.11.2.
The issue fixed is related to simultaneous authentication of two or more connections, in which case a change introduced
in 2.11.0 can result in authentication failing. Under loads low enough that only one connection is ever opened at the same
time the issue does not happen.

See: https://jira.mongodb.org/browse/CSHARP-3196

There are no known backwards breaking changes in this release.

.NET Driver Version 2.11.1 Release Notes

.NET Driver Version 2.11.1 Release Notes

This is a patch release that fixes a couple of bugs reported since 2.11.0 was released.

An online version of these release notes is available at:

https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.11.1.md

The list of JIRA tickets resolved in this release is available at:

https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.11.1%20ORDER%20BY%20key%20ASC

Documentation on the .NET driver can be found at:

http://mongodb.github.io/mongo-csharp-driver/

Upgrading

If you are writing a WinForms application you will want to upgrade to this version of the driver (see CSHARP-3182).

There are no known backwards breaking changes in this release.