Load-balanced mode for Atlas Serverless
Versioned MongoDB API for Drivers
Implemented change stream oplog parsing code for delta oplog entries
Snapshot reads on secondaries
Support for creating time-series collections
Permit dots and dollars in field names
Improved error messages from document validation
Better ExpandoObject support
estimatedDocumentCount() now uses the $collStats aggregation stage instead of the count command
Reduced lock contention in BsonSerializer.LookupActualType
slaveOk connection string option removed; use readPreference instead

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.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%202.13.0%20ORDER%20BY%20key%20ASC

Documentation on the .NET driver can be found at:

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

Assets 2

04 Jun 21:11

rstam

v2.12.4

f7e91ab

.NET Driver Version 2.12.4 Release Notes

This is a patch release that addresses some issues reported since 2.12.3 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%20v2.12.4.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%202.12.4%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.

Assets 2

04 May 17:57

JamesKovacs

v2.12.3

5fbdf9e

.NET Driver Version 2.12.3 Release Notes

This is a patch release that addresses some issues reported since 2.12.2 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%20v2.12.3.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%202.12.3%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.

Assets 2

07 Apr 19:59

DmitryLukyanov

v2.12.2

a4a3888

.NET Driver Version 2.12.2 Release Notes

This is a patch release that addresses some issues reported since 2.12.1 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%20v2.12.2.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%202.12.2%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.

Assets 2

31 Mar 21:57

BorisDog

v2.13.0-beta1

29ae904

.NET Driver Version 2.13.0-beta1 Release Notes Pre-release

Pre-release

.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/

Assets 2

23 Mar 17:47

JamesKovacs

v2.12.1

59cb655

.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.

Assets 2

03 Mar 01:16

JamesKovacs

v2.12.0

e75af27

.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/

Assets 2