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What's New

On this page

  • What's New in 1.27.6
  • What's New in 1.27.5
  • What's New in 1.27.4
  • What's New in 1.27.3
  • What's New in 1.27.2
  • What's New in 1.27.1
  • What's New in 1.27.0
  • What's New in 1.26.2
  • What's New in 1.26.1
  • What's New in 1.26.0

Learn what's new in:

  • Version 1.27.6

  • Version 1.27.5

  • Version 1.27.4

  • Version 1.27.3

  • Version 1.27.2

  • Version 1.27.1

  • Version 1.27.0

  • Version 1.26.2

  • Version 1.26.1

  • Version 1.26.0

What's New in 1.27.6

The 1.27.6 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

The 1.27.6 release of libbson includes the following changes:

Fixes

  • Fixes handling of malformed extended JSON for special BSON types

libmongoc

The 1.27.6 release of libmongoc includes the following changes:

Fixes

  • Fixes TSan warning

  • Fixes C23 compile

Improvements

  • Documents expected behavior of command errors in a transaction

What's New in 1.27.5

The 1.27.5 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

The 1.27.5 release of libbson includes the following changes:

Fixes

  • Fixes large string handling in bson_append_utf8

libmongoc

The 1.27.5 release of libmongoc includes the following changes:

Fixes

  • Fixes possible build error in environments where bool or _Bool is a macro

What's New in 1.27.4

The 1.27.4 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

The 1.27.4 release of libbson includes the following changes:

Fixes

  • Fixes build issues with Visual Studio 2013

libmongoc

The 1.27.4 release of libmongoc includes the following changes:

Fixes

  • Fixes possible crash reading malformed wired protocol message

  • Fixes build issues with Visual Studio 2013

What's New in 1.27.3

The 1.27.3 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

The 1.27.3 release of libbson includes the following changes:

Changes

  • Introduces changes surrounding the development processes, including new code signing and dependency tracking. There are no behavioral or API changes.

libmongoc

The 1.27.3 release of libmongoc includes the following changes:

Fixes

  • Upgrades bundled Zlib from 1.2.3 to 1.3.1

What's New in 1.27.2

The 1.27.2 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

The 1.27.2 release of libbson includes the following changes:

Fixes

  • Fixes parsing of colon in timezone

  • Fixes error on failure to initialize a subdocument in bson_iter_visit_all

libmongoc

The 1.27.2 release of libmongoc includes the following changes:

Fixes

  • Closes leftover connections to remote servers

New Features

  • Checks environment variable MONGO_EXPERIMENTAL_SRV_PREFER_TCP to prefer TCP over SRV lookup

What's New in 1.27.1

The 1.27.1 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

The 1.27.1 release of libbson includes the following changes:

Fixes

  • Fixes large string handling in bson_string_new and bson_string_append

libmongoc

This version is incremented to match the libbson version, but there are no changes since 1.27.0.

What's New in 1.27.0

The 1.27.0 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

This version is incremented to match the libbson version, but there are no changes since 1.26.2.

libmongoc

The 1.27.0 release of libmongoc includes the following changes:

Changes

  • Raises the required version of libmongocrypt to 1.10.0 to support In-Use Encryption. This corresponds to CMake option ENABLE_CLIENT_SIDE_ENCRYPTION.

Fixes

  • Fixes possible crash when client is configured with an empty password

New Features

  • Adds database name to command events mongoc_apm_command_failed_get_database_name and mongoc_apm_command_succeeded_get_database_name

  • Supports delegated KMIP protocol for In-Use Encryption

  • Enables setting socket timeout per client

What's New in 1.26.2

The 1.26.2 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

The 1.26.2 release of libbson includes the following changes:

Fixes

  • Fixes iteration on bson_strfreev

libmongoc

The 1.26.2 release of libmongoc includes the following changes:

Changes

  • By default, disables plugin loading with Cyrus SASL on Windows. To re-enable, set the CMake option CYRUS_PLUGIN_PATH_PREFIX to the absolute path prefix of the Cyrus SASL plugins.

Fixes

  • Fixes possible hang if mongoc_gridfs_file_readv is called with a corrupt chunk with incomplete data

  • Fixes assert with legacy exhaust cursor protocol when connected to MongoDB server versions earlier than 4.2

What's New in 1.26.1

The 1.26.1 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

The 1.26.1 release of libbson includes the following changes:

Fixes

  • Uses aligned allocation for bson_array_builder_t

libmongoc

The 1.26.1 release of libmongoc includes the following changes:

Fixes

  • Fixes 32-bit compile with 64-bit time_t

What's New in 1.26.0

The 1.26.0 release of libbson and libmongoc, the libraries constituting the C driver, includes several changes.

libbson

This version is incremented to match the libmongoc version, but there are no changes since 1.25.4.

libmongoc

The 1.26.0 release of libmongoc includes the following changes:

New Features

  • Supports named KMS providers

  • Redirects retries in sharded clusters to another mongos if possible

Improvements

  • Adds VERSION_CURRENT file in source to ease building

  • Considers more errors retryable

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