mongo-c-driver 1.2.0-rc0

It is my pleasure to announce the release candidate of the MongoDB C driver
1.2.0. It includes features and bugfixes developed since 1.2.0-beta1.

Notable bugs fixed:

• Much improved reporting of network errors, unavailable servers, and authentication failure
• Destroying an exhaust cursor must close its socket
• Various bugs in server reconnection logic
• mongoc_collection_aggregate returned invalid cursor after failure
• Wrong error message after failed network write on Sparc
• Missing JSON test files in release tarball

Other changes:

• Enable runtime asserts in release build.
• mongoc_client_kill_cursor is now deprecated and will be removed in version 2.0.

This release candidate also includes all bugfixes from 1.1.11.

Version 1.2.0 final will be a stable release with additive ABI changes and
bugfixes. It is compatible with MongoDB version 2.4 and later.

Thanks to everyone who contributed to this version of libmongoc.

• A. Jesse Jiryu Davis
• Hannes Magnusson
• Kyle Suarez
• rubicks
• Jose Sebastian Battig
• Jason Carey
• Remi Collet
• Yuval Hager

Peace,

-- A. Jesse Jiryu Davis

mongo-c-driver 1.1.11

It is my pleasure to announce to you the MongoDB C driver 1.1.11.

This is a patch release with bug fixes:

• Undetected network errors when sending messages to the server
• Off-by-one error in mongoc_gridfs_file_seek with mode SEEK_END
• Memory leak parsing a URI that contains an invalid option
• The libbson submodule's URL now uses the recommended https://, not git://

Thanks to everyone who contributed to the development of this point release for
libmongoc.

• A. Jesse Jiryu Davis
• Hannes Magnusson
• Jason Carey
• Jose Sebastian Battig
• rubicks

Peace,

A. Jesse Jiryu Davis

mongo-c-driver 1.2.0-beta1

It is my pleasure to announce the second beta release of the MongoDB C driver
1.2.0. It includes features and bugfixes developed since 1.2.0-beta.

New features:

• Set mongoc_client_pool_t's size with mongoc_client_pool_min_size()
  and mongoc_client_pool_max_size().
• The write concern "w=-1" is now documented as obsolete.
• Abundant fixes and additions to the documentation, beyond those in the
  previous beta.

Notable bugs fixed:

• Crashes and races in several replica set scenarios.
• The driver now uses the server's maxWireVersion to avoid an error and
  extra round-trip when executing aggregations on MongoDB 2.4 and older.
• Fixed network error handling in multiple code paths.
• connectTimeoutMS limits the time the driver can spend reconnecting to
  servers in single-threaded (non-pooled) mode with serverSelectionTryOnce.

Version 1.2.0 final will be a stable release with additive ABI changes and
bugfixes. It is compatible with MongoDB version 2.4 and later.

Thanks to everyone who contributed to this version of libmongoc.

• A. Jesse Jiryu Davis
• Hannes Magnusson
• Manuel Schoenlaub
• Kyle Suarez
• Remi Collet

Peace,

A. Jesse Jiryu Davis

mongo-c-driver 1.2.0-beta

It is my pleasure to announce to you the first beta release of the MongoDB C driver 1.2.0.

This release is a stable release with additive ABI changes and bugfixes. It is compatible with MongoDB version 2.4 and later.

Version 1.2.0 rewrites mongoc_client_t's internals to match two important new specs for MongoDB drivers: the Server Discovery And Monitoring Spec and the Server Selection Spec. The rewritten client has many advantages:

• All replica set members or mongoses are discovered and periodically
  checked in parallel. The driver's performance is dramatically better and
  more predictable with multi-server deployments, or with a flaky network,
  or when some servers are slow or down.
• Clients from the same mongoc_client_pool_t share a background thread that
  discovers and monitors all servers in parallel.
• Unnecessary round trips for server checks and pings are eliminated.
• Behavior is documented in the specs, and consistent with other drivers, even
  in complex or unusual scenarios.
• The URI's "replicaSet" option is enforced: the driver now refuses to connect
  to a server unless it is a member of a replica set with the right setName.
• Many race conditions related to changing deployment conditions are fixed.

To conform to the new specs, the client now accepts these options in the MongoDB URI; see the mongoc_uri_t documentation for details:

• heartbeatFrequencyMS
• serverSelectionTimeoutMS
• serverSelectionTryOnce
• socketCheckIntervalMS

Other features:

• All timeouts that can be configured in the URI now interpret 0 to mean "use the default value for this timeout".
• The client's read preference can be configured in the URI with the new
  options "readPreference" and "readPreferenceTags", see the mongoc_uri_t
  documentation.
• The new mongoc_uri_get_read_prefs_t function retrieves both the read mode
  and tags from a mongoc_uri_t.
• New accessors mongoc_gridfs_file_get_id, mongoc_client_get_default_database,
  and mongoc_bulk_operation_get_write_concern.
• Debug tracing can be controlled at runtime with mongoc_log_trace_enable and
  mongoc_log_trace_disable.

Notable bugs fixed:

• "wtimeoutms" was ignored for write concerns besides "majority".
• Bulk write operations might fail in mixed-version sharded clusters with
  some pre-2.6 mongos servers.
• Normal operations were logged during startup and could not be silenced.
• A variety of bugs and incorrect results in mongoc_bulk_operation_execute.
• Numerous compiler warnings and build failures on various platforms.
• Copious refinements to the documentation.

Thanks to everyone who contributed to this version of libmongoc.

• A. Jesse Jiryu Davis
• Sujan Dutta
• Jason Carey
• Hannes Magnusson
• Jeremy Mikola
• Derick Rethans
• Samantha Ritter
• Yuchen Xie
• Lloyd Zhou

Peace,

A. Jesse Jiryu Davis

mongo-c-driver 1.1.10

It is my pleasure to announce to you the MongoDB C driver 1.1.10.

This is a patch release with bug fixes:

• Occasional crash reconnecting to replica set.
• Queries sent to recovering replica set members.
• Memory leak when calling ismaster on replica set members.

Thanks to everyone who contributed to the development of this point release for
libmongoc.

• A. Jesse Jiryu Davis
• Daniil Zaitsev
• Jason Carey
• Jeremy Mikola

Peace,

A. Jesse Jiryu Davis

mongo-c-driver 1.1.9

It is my pleasure to announce to you the MongoDB C driver 1.1.9.

This release fixes a common crash in 1.1.8, which itself was introduced while
fixing a rare crash in 1.1.7. For further details:

https://jira.mongodb.org/browse/CDRIVER-721
https://jira.mongodb.org/browse/CDRIVER-695

Thanks to everyone who contributed to the development of this point release for
libmongoc.

Peace,

A. Jesse Jiryu Davis

mongo-c-driver 1.1.8

Update: this release suffers from a severe regression, CDRIVER-721, so I'm removing it.

It is my pleasure to announce to you the 1.1.8 release of the MongoDB C driver.

This is a patch release with bug fixes:

• Crash freeing client after a replica set auth error.
• Compile error in strict C89 mode.

Thanks to everyone who contributed to the development of this point release for
libmongoc.

Peace,

A. Jesse Jiryu Davis

Mongo-c-driver 1.1.7

mongo-c-driver 1.1.7

It is my pleasure to announce to you the 1.1.7 release of the MongoDB C driver.

This is a patch release with bug fixes:

• Thread-safe use of Cyrus SASL library.
• Experimental support for building with CMake and SASL.
• Faster reconnection to replica set with some hosts down.
• Crash iterating a cursor after reconnecting to a replica set.
• Unchecked errors decoding invalid UTF-8 in MongoDB URIs.
• Fix error reporting from mongoc_client_get_database_names.

Thanks to everyone who contributed to the development of this point release for
libmongoc.

• A. Jesse Jiryu Davis
• Jason Carey
• Hannes Magnusson

Peace,

A. Jesse Jiryu Davis

Mongo-c-driver 1.1.6

mongo-c-driver 1.1.6

It is my pleasure to announce to you the 1.1.6 release of the MongoDB C driver.

This is a patch release with performance enhancements and bug fixes:

• mongoc_bulk_operation_execute now coalesces consecutive update operations
  into a single message to a MongoDB 2.6+ server, yielding huge performance
  gains. Same for remove operations. (Inserts were always coalesced.)
• Large numbers of insert operations are now properly batched according to
  number of documents and total data size.
• GSSAPI / Kerberos auth now works.
• The driver no longer tries three times in vain to reconnect to a primary,
  so socketTimeoutMS and connectTimeoutMS now behave closer to what you
  expect for replica sets with down members. A full fix awaits 1.2.0.

I snuck in a feature:

• mongoc_matcher_t now supports basic subdocument and array matching

Thanks to everyone who contributed to the development of this point release for
libmongoc.

• A. Jesse Jiryu Davis
• Jason Carey
• Kai Mast
• Matt Cotter

Peace,

A. Jesse Jiryu Davis

Mongo-c-driver 1.1.5

mongo-c-driver 1.1.5

It is my pleasure to announce to you the 1.1.5 release of the MongoDB C driver.

This is a patch release with performance enhancements and bug fixes:

• The fsync and j write concern flags now imply acknowledged writes
• Prevent using fsync or j with conflicting w=0 write concern
• Obey socket timeout consistently in TLS/SSL mode
• Return an error promptly after a network hangup in TLS mode
• Prevent crash using SSL in FIPS mode
• Always return NULL from mongoc_database_get_collection_names on error
• Fix version check for GCC 5 and future versions of Clang
• Fix warnings and errors building on various platforms
• Add configure flag to enable/disable shared memory performance counters
• Minor docs improvements and fix links from C Driver docs to Libbson docs

With this release, Libbson abandons the convention that odd-numbered patch
versions indicate unstable releases. We switch to simple semantic versioning:
1.1.5 is a stable release with bug fixes since 1.1.4. During subsequent
development the version will be "1.1.6-dev".

Thanks to everyone who contributed to the development of this point release for
libmongoc.

• A. Jesse Jiryu Davis
• Christian Hergert
• Jason Carey
• Jeremy Mikola
• Jeroen Ooms
• Hannes Magnusson

Enjoy!

-- A. Jesse Jiryu Davis