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NEWS
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libmongoc 1.20.1
================
Bug fixes:
* Fix bug where first hello command on a single-threaded client may not include full handshake.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
libmongoc 1.20.0
================
Features:
* Improve multi-threaded performance of client pool.
* Support KMIP as a provider for Client-Side Field Level Encryption (CSFLE).
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Ezra Chung
* Colby Pike
* Jesse Williamson
* Jeremy Mikola
* Kaitlin Mahar
mongo-c-driver 1.19.2
=====================
Announcing libmongoc 1.19.2.
Bug fixes:
* Fix assert on invalid URI options in client pools connected to load balanced clusters when a topology closed callback is registered.
Thanks to everyone who contributed to the development of this release.
--Kevin Albertson
libmongoc 1.19.1
================
It is my pleasure to announce libmongoc 1.19.1.
Bug fixes:
* Permit NULL platform argument in mongoc_handshake_data_append.
* Fix wire version check in server selection when maxStalenessSeconds is specified in read preferences.
* Fix assert on invalid URI options in client pools connected to load balanced clusters.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Ezra Chung
--Kevin Albertson
mongo-c-driver 1.19.0
=====================
It is my pleasure to announce the MongoDB C Driver 1.19.0 release.
This release adds full support for MongoDB 5.0 servers and MongoDB Atlas Serverless Instances.
Features:
* Add full support to connect to MongoDB Atlas Serverless Instances.
* Add support for snapshot reads on a session with mongoc_session_opts_set_snapshot.
* Support the new URI option loadBalanced to connect to a MongoDB cluster behind a TCP load balancer.
Bug fixes:
* Fix the uploadDate set on newly created GridFS files in the mongoc_gridfs_bucket_t API.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Jeremy Mikola
* Benjamin Rewis
* Andreas Braun
* Colby Pike
* Ezra Chung
* Roberto C. Sánchez
* Jesse Williamson
--Kevin Albertson
mongo-c-driver 1.18.0
=====================
It is my pleasure to announce the MongoDB C Driver 1.18.0 release.
This release adds partial support for MongoDB 5.0 servers.
Features:
* Introduces support to select an API version when connecting to a MongoDB instance.
* Supports Azure and Google Cloud Platform as Key Management Service (KMS) providers in Client-Side Field Level Encryption (CSFLE).
* Support "let" option in aggregate command.
* Support time series collections.
* Relax validation for insert and replace documents to support fields containing dots and dollars.
* Expose the reason operations fail document validation.
Bug fixes:
* Forward opts from mongoc_gridfs_bucket_find to underlying find operation.
* Fixes a possible hang when a limited size client pool is waiting for a client to become available in mongoc_client_pool_pop.
Improvements
* Deprecate API containing deprecated terminology.
* Use "hello" command for monitoring servers.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Roberto C. Sánchez
* Andreas Braun
* Clyde Bazile
* Benjamin Rewis
* Jeremy Mikola
* Andrew Witten
* Samantha Ritter
* samantharitter
* Fermín Galán Márquez
* David Carlier
* Colby Pike
* Josh Weinstein
* Pierre Mickael Gonzalo
mongo-c-driver 1.18.0-alpha
===========================
It is my pleasure to announce the MongoDB C Driver 1.18.0-alpha.
This is an unstable prerelease and is unsuitable for production applications.
Features:
* Introduces support to select an API version when connecting to a MongoDB instance.
* Supports Azure and Google Cloud Platform as Key Management Service (KMS) providers in Client-Side Field Level Encryption (CSFLE)
Bug fixes:
* Fixes a possible hang when a limited size client pool is waiting for a client to become available in mongoc_client_pool_pop.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Roberto C. Sánchez
* Clyde Bazile
* Andreas Braun
* Andrew Witten
* Samantha Ritter
* Benjamin Rewis
* Fermín Galán Márquez
* David Carlier
* Josh Weinstein
* Pierre Mickael Gonzalo
mongo-c-driver 1.17.7
=====================
It is my pleasure to announce the MongoDB C Driver 1.17.7.
- Print correct error message when DNS resolution fails
- Mix time to avoid duplicate RAND_bytes for the same PIDs
Thanks to everyone who contributed to the development of this release.
* Andreas Braun
* Jeremy Mikola
--Kevin Albertson
mongo-c-driver 1.17.6
=====================
It is my pleasure to announce the MongoDB C Driver 1.17.6.
Bug fixes:
* Fix possible crash when speculative authentication fails with network error.
Thanks to everyone who contributed to the development of this release.
* Andreas Braun
--Kevin Albertson
mongo-c-driver 1.17.5
=====================
It is my pleasure to announce the MongoDB C Driver 1.17.5.
Improvements:
* Fix documentation regarding when to call mongoc_log_set_handler
Thanks to everyone who contributed to the development of this release.
* Clyde Bazile
* Fermín Galán Márquez
--Kevin Albertson
mongo-c-driver 1.17.4
=====================
It is my pleasure to announce the MongoDB C Driver 1.17.4.
Bug fixes:
* Fix crash on macOS on client pool shutdown.
* Fix spacing in extended JSON output for numberLong.
* Clear error in mongoc_collection_find_and_modify_with_opts on a successful retry.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Samantha Ritter
-- Kevin Albertson
mongo-c-driver 1.17.3
=====================
It is my pleasure to announce the MongoDB C Driver 1.17.3.
Bug fixes:
* Do not send session ID on GSSAPI auth commands.
* Fix build against zlib when zlib is installed in non-standard location.
* Fix build when source directory path contains a space.
* Fix a platform-specific bug causing mongoc_client_pool_pop to block indefinitely if all clients are checked out.
* Fix a possible buffer overflow with hostnames resolving to IPv6 addresses on OpenSSL.
Thanks to everyone who contributed to the development of this release.
* Roberto C. Sánchez
* Kevin Albertson
* Andrew Witten
* gonzalo
-- Kevin Albertson
mongo-c-driver 1.17.2
=====================
It is my pleasure to announce the MongoDB C Driver 1.17.2.
Bug fixes:
* Stop the SRV polling thread when an SRV URI is used to connect to a deployment other than a sharded cluster.
Thanks to everyone who contributed to the development of this release.
* Roberto C. Sánchez
* Kevin Albertson
-- Kevin Albertson
mongo-c-driver 1.17.1
=====================
It is my pleasure to announce the MongoDB C Driver 1.17.1.
Bug fixes:
* Fix SRV/TXT record lookup for DNS records exceeding 1024 bytes.
-- Kevin Albertson
mongo-c-driver 1.17.0
=====================
It is my pleasure to announce the MongoDB C Driver 1.17.0 release.
This release adds support for MongoDB 4.4 servers.
Features:
* Support streamable server monitoring to reduce recovery time when the server topology changes.
* Support the MONGODB-AWS authentication mechanism.
* Support Online Certificate Status Protocol (OCSP).
* Support configuring hedged reads in read preferences.
* Reduce the number of round trips necessary for SCRAM and X509 authentication.
* Monitor servers in parallel when using a mongoc_client_pool_t instead of doing serial scans.
* Support the "hint" option in operations using the update, replace, delete, and findAndModify commands.
* Improve behavior for retryable writes.
* Improve resuming behavior of change streams on server errors.
* Remove restriction of 255 character collection namespaces.
Bug fixes:
* Fix criteria for resumable errors in change streams.
* Fix rare crashes when server is invalidated during authentication.
* Reject client session for mongoc_collection_estimated_document_count.
* Fix behavior of a SecondaryPreferred read preference for exhaust cursor operations against a sharded cluster. Prior to the fix, a nonzero maxStalenessSeconds would not trigger sending the read preference.
* Fix SRV polling. Prior to the fix, SRV polling did not properly apply newly discovered results.
* Fix checks for existing GridFS indexes to handle indexes created by the MongoDB shell.
* Fix possible use of invalidated streams during an unordered OP_QUERY bulk write, and when ending many pooled sessions at client destruction.
* Fix a crash when setting the crl_file TLS option for Secure Channel.
* Avoid emitting duplicate ServerChanged events when no change is observed during monitoring.
* Properly handle large SASL messages instead of erroring.
Notes:
* Deprecated "lib" prefixed artifacts are no longer produced when building on Windows.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Roberto C. Sánchez
* Andrew Witten
* Andreas Braun
* Clyde Bazile
* Josh Weinstein
-- Kevin Albertson
mongo-c-driver 1.17.0 rc0
=========================
It is my pleasure to announce the MongoDB C Driver 1.17.0 rc0 release.
This release adds support for MongoDB 4.4 servers.
Features:
* Support streamable server monitoring to reduce recovery time when the server topology changes.
* Support tlsDisableCertificateRevocationCheck when built with Secure Channel.
Bug fixes:
* Fix criteria for resumable errors in change streams.
* Fix rare crashes when server is invalidated during authentication.
* Improve behavior when reaching out to OCSP responders for certificate revocation checking.
* Reject client session for mongoc_collection_estimated_document_count.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Andrew Witten
* Roberto C. Sánchez
* Clyde Bazile
-- Kevin Albertson
mongo-c-driver 1.17.0 beta2
===========================
It is my pleasure to announce the MongoDB C Driver 1.17.0 beta2 release.
Features:
* Support Online Certificate Status Protocol (OCSP) response caching.
* Support configuring hedged reads in read preferences.
* Reduce the number of round trips necessary for SCRAM and X509 authentication.
* Monitor servers in parallel when using a mongoc_client_pool_t instead of doing serial scans.
* Support OCSP on older versions of OpenSSL (1.0.1+).
Bug fixes:
* Fix behavior of a SecondaryPreferred read preference for exhaust cursor operations against a sharded cluster. Prior to the fix, a nonzero maxStalenessSeconds would not trigger sending the read preference.
* Fix SRV polling. Prior to the fix, SRV polling did not properly apply newly discovered results.
* Fix checks for existing GridFS indexes to handle indexes created by the MongoDB shell.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Roberto C. Sánchez
* Andreas Braun
* Clyde Bazile
* Josh Weinstein
-- Kevin Albertson
mongo-c-driver 1.17.0 beta
==========================
It is my pleasure to announce the MongoDB C Driver 1.17.0 beta release.
Features:
* Support the MONGODB-AWS authentication mechanism.
* Support the Online Certificate Status Protocol (OCSP) for OpenSSL 1.1.0+, Secure Transport, and Secure Channel.
* Support the "hint" option in operations using the update, replace, delete, and findAndModify commands.
* Improve behavior for retryable writes.
* Improve resuming behavior of change streams on server errors.
* Remove an extra round trip for SCRAM authentication.
* Remove restriction of 255 character collection namespaces.
Bug fixes:
* Fix possible use of invalidated streams during an unordered OP_QUERY bulk write, and when ending many pooled sessions at client destruction.
* Fix a crash when setting the crl_file TLS option for Secure Channel.
* Avoid emitting duplicate ServerChanged events when no change is observed during monitoring.
* Properly handle large SASL messages instead of erroring.
Notes:
* Deprecated "lib" prefixed artifacts are no longer produced when building on Windows.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Roberto C. Sánchez
* Andreas Braun
* Clyde Bazile
* Jeremy Mikola
* Sara Golemon
-- Kevin Albertson
mongo-c-driver 1.16.1
=====================
It is my pleasure to announce the MongoDB C Driver 1.16.1.
Bug fixes:
* Fix listed library dependency on mongoc_static target when building with libmongocrypt.
* Replace a call of free to bson_free.
* Vendor Sphinx basic theme and correctly list static files for docs.
* Fix a compilation warning introduced in 1.16.0.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
Peace,
Kevin Albertson
mongo-c-driver 1.16.0
=====================
It is my pleasure to announce the MongoDB C Driver 1.16.0.
Features:
* Support Client-side Field Level Encryption.
* Support ability to pass an index hint to update operations.
* Add cmake export targets.
Bug fixes:
* Fix a bug with Windows SSPI failing to authenticate with GSSAPI when using
pooled clients for certain operations.
* Fix behavior for bulk writes that retry to keep track of the successful server.
* Remove hard limit of 1024 characters for SRV response.
* Fix racy crash when using client pool against a sharded cluster if a server is invalidated shortly before a new socket is opened against it.
* Remove unnecessary library dependencies causing overlinking.
* Ensure server proof has been validated during SCRAM conversation.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Jeremy Mikola
* Clyde Bazile
* Andreas Braun
* Roberto C. Sánchez
* Samantha Ritter
* Isabel Atkinson
* Kaitlin Mahar
* Diego Barrios Romero
* Sara Golemon
* Vasil Velichkov
* EGuesnet
Peace,
Kevin Albertson
mongo-c-driver 1.15.3
=====================
It is my pleasure to announce the MongoDB C Driver 1.15.3.
Bug fixes:
* Fix a hang on macOS when connecting to a server over TLS
* Add zstd as a dependency when libmongoc static library is compiled with zstd support
* Fix compilation on AIX 6.1
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Samantha Ritter
* EGuesnet
mongo-c-driver 1.15.2
=====================
It is my pleasure to announce the MongoDB C Driver 1.15.2.
Bug fixes:
* Prevent mongoc_transaction_opts_set_max_commit_time_ms from applying to subsequent transactions that should be using the default.
* Do not report the initial error if a retry for a change stream function (mongoc_collection_watch, mongoc_database_watch, or mongoc_client_watch) succeeds
Thanks to everyone who contributed to the development of this release.
* Andreas Braun
* Clyde Bazile
Peace,
Kevin Albertson
mongo-c-driver 1.15.1
=====================
It is my pleasure to announce the MongoDB C Driver 1.15.1.
Bug fixes:
* Fix change stream resume logic when no documents received
* Reduce the required cmake version to build with zstd support
* Minor fixes to mongos pinning logic
* Do not resume a change stream on NonResumableChangeStreamError
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Clyde Bazile
Peace,
Clyde Bazile
mongo-c-driver 1.15.0
=====================
It is my pleasure to announce the MongoDB C Driver 1.15.0. This release adds
support for MongoDB 4.2 features.
Features:
* Support for sharded transactions on MongoDB sharded clusters 4.2+.
* Add convenient transaction runner (mongoc_client_session_with_transaction),
which accepts a callback and performs appropriate retry logic.
* Add a new transaction option to specify maximum time to wait for a commit,
mongoc_transaction_opts_set_max_commit_time_ms.
* Add URI option "retryReads=true" safely and automatically retries certain
read operations if the server is a MongoDB 3.6+.
* Poll SRV records to mongos servers periodically.
* Keep connections alive after a primary stepdown detected.
* Standardizes URI options supported across all spec-compliant MongoDB drivers.
* "retryWrites" URI option now defaults to true (requires crypto for session
support).
* Send any aggregate with $out or $merge stage to a primary.
* Add the ability to specify an aggregate pipeline as an update document.
* Add a database aggregate helper, mongoc_database_aggregate.
* Add option for change streams, "startAfter".
* Add mongoc_change_stream_get_resume_token, which returns the resume token
which should be used to resume a change stream.
* Add support for zstd compression.
Bug fixes:
* Correctly report an error in mongoc_change_stream_next if the resume token
(_id) is not a document. Previously, an error was only reported if the
field was missing.
* Fix mongoc_collection_update with MONGOC_UPDATE_MULTI_UPDATE,
mongoc_collection_remove, and mongoc_collection_delete when retryWrites
was enabled. They would fail previously.
* Command options are now correctly taken into account when batching bulk
writes for OP_QUERY. It was possible to exceed the maximum document size
before.
* Fix a crash if a multi-batch bulk write with OP_MSG errored on a batch.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* Jeremy Mikola
* Haris Sheikh
* Samantha Ritter
* Isabel Atkinson
* Sara Golemon
* Clyde Bazile
* Roberto C. Sánchez
* Lior Kaplan
* pasniak
Peace,
Kevin Albertson
mongo-c-driver 1.14.1
=====================
It is my pleasure to announce the MongoDB C Driver 1.14.1.
Bug fixes:
* Prohibit starting a transaction for pre-4.0 MongoDB servers.
* Prohibit starting a sharded transaction for pre-4.2 MongoDB servers.
Thanks to everyone who contributed to the development of this release.
* Jeremy Mikola
* Clyde Bazile
Peace,
Kevin Albertson
mongo-c-driver 1.14.0
=====================
It is my pleasure to announce the MongoDB C Driver 1.14.0.
Features:
* Support for OpenSSL 1.1.1 and its implementation of TLS v1.3.
* New function mongoc_stream_should_retry.
* New accessor mongoc_server_description_last_update_time.
* New method mongoc_client_reset to be called after forking.
Bug fixes:
* OP_MSG with unacknowledged writes (write concern of w:0) would serialize
incorrectly on big-endian platforms, causing writes to use the default
write concern of w:1.
* mongoc_collection_update_many and mongoc_collection_delete_many would fail
with the URI option retryWrites=true.
* In a transaction, the driver now properly ignores the readConcern configured
on a client, database, or collection: only the mongoc_transaction_opt_t's
readConcern is used.
* Remove timestamp from uninstall scripts to permit reproducible build.
* Setting mongoc_ssl_opt_t.pem_file or ca_file to a bad file path caused a
hang with Darwin SSL.
* Fix the ENABLE_SASL cmake option:
* Remove unnecessary GSSAPI value. It was equivalent to specifying ENABLE_SASL=CYRUS.
* ENABLE_SASL=AUTO now correctly chooses SSPI on Windows instead of CYRUS.
* The client pool failed to set proper apm callbacks for clients created
via try_pop().
Thanks to everyone who contributed to the development of this release.
* A. Jesse Jiryu Davis
* Roberto C. Sánchez
* Kevin Albertson
* Samantha Ritter
* Spencer McKenney
* Henrik Edin
* Jeremy Mikola
* Evgeni Dobranov
* Derick Rethans
* 平民·寻梦(Pingmin Fenlly Liu)
* David Carlier
* Gustaf Neumann
* Jeroen
* Jeroen Ooms
* Kaitlin Mahar
* Tomas Mozes
* Clyde Bazile
Peace,
Samantha Ritter
mongo-c-driver 1.13.1
=====================
It is my pleasure to announce the MongoDB C Driver 1.13.1.
Bug fixes:
* mongoc_collection_update_many and mongoc_collection_delete_many would fail
with the URI option retryWrites=true.
* Remove timestamp from uninstall scripts to permit reproducible build.
* Add missing header files to the release tarball to fix compilation when
configuring with ENABLE_SASL=GSSAPI.
* Separate libmongoc and libbson uninstall scripts so they do not overwrite
each other.
* Fix running make install with DESTDIR.
Thanks to everyone who contributed to the development of this release.
* Kevin Albertson
* A. Jesse Jiryu Davis
* Henrik Edin
Peace,
Kevin Albertson
mongo-c-driver 1.13.0
=====================
It is my pleasure to announce the MongoDB C Driver 1.13.0.
Features:
* Report a new error code, MONGOC_ERROR_GRIDFS_CORRUPT, when a chunk larger
than chunkSize is detected. Before, the driver had crashed with an assert.
* Restructure of install directory. All mongoc headers are under mongoc/
and all bson headers are under bson/. The preferred way of including the
headers are mongoc/mongoc.h and bson/bson.h respectively.
Forwarding headers in the root are provided for backwards compatibility.
* The default CMake build type had been unspecified, now it is RelWithDebInfo.
* Support LibreSSL 2.7+.
Bug fixes:
* mongoc_collection_replace_one is now a correctly exported symbol.
* Fix multiple issues with readConcern and writeConcern inheritance.
* Fix rare crash with mongodb+srv URIs on Windows.
* mongoc_gridfs_create_file_from_stream ignored errors while writing chunks
to the server.
* The following functions should not have taken a "bypassDocumentValidation"
option in bson_t *opts, the option is now prohibited:
- mongoc_bulk_operation_insert_with_opts
- mongoc_bulk_operation_update_one_with_opts
- mongoc_bulk_operation_update_many_with_opts
- mongoc_bulk_operation_replace_one_with_opts
* The heartbeat-succeeded and heartbeat-failed events (part of SDAM
Monitoring) had uninitialized "duration" fields, they are now set correctly.
Thanks to everyone who contributed to the development of this release.
* A. Jesse Jiryu Davis
* Roberto C. Sánchez
* Kevin Albertson
* Henrik Edin
* Spencer McKenney
* Jeremy Mikola
* Evgeni Dobranov
* Tomas Mozes
* Derick Rethans
* Gustaf Neumann
* Jeroen Ooms
* Kaitlin Mahar
Peace,
Kevin Albertson
mongo-c-driver 1.12.0
=====================
It is my pleasure to announce the MongoDB C Driver 1.12.0.
Features:
* New function mongoc_client_session_in_transaction to check if a multi-
document transaction is started.
* New examples for change streams and transactions, improved guide for
migrating from mongoc_collection_count to mongoc_collection_count_documents
Bug fixes:
* Fix occasional crash in sharded queries
* Retry all retryable write concern errors
* mongoc_client_session_commit_transaction sets the correct error label when
the primary is unavailable
* mongoc_collection_find_with_opts had prohibited read preference "primary"
in a transaction
* mongoc_collection_aggregate had not inherited its mongoc_collection_t's
read preference; only an explicitly provided read preference was used.
* Allow unencoded delimiters in username/password if unambiguous
Thanks to everyone who contributed to the development of this release.
* Roberto C. Sánchez
* A. Jesse Jiryu Davis
* Kevin Albertson
* Spencer McKenney
* Evgeni Dobranov
* Jeremy Mikola
* 平民·寻梦(Pingmin Fenlly Liu)
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.11.0
=====================
It is my pleasure to announce the MongoDB C Driver 1.11.0. This release adds
support for MongoDB 4.0 features. It includes the following additions and
improvements:
* Multi-document transactions, see mongoc_client_session_start_transaction
* New function mongoc_error_has_label to check for specific error labels such
as "TransientTransactionError" or "UnknownTransactionCommitResult" in
error replies.
* New functions to subscribe to changes on an entire client or database:
- mongoc_client_watch
- mongoc_database_watch
* New option for change streams, "startAtOperationTime".
* mongoc_collection_count_with_opts is deprecated for two new functions:
- mongoc_collection_count_documents
- mongoc_collection_estimated_document_count
* Support for SCRAM-SHA-256 authentication, including support for non-ASCII
passwords using libicu is an optional dependency.
* Faster mongoc_database_get_collection_names_with_opts fetches only names,
not the entire collection metadata.
Additional changes not specific to MongoDB 4.0:
* All "destroy" functions such as mongoc_collection_destroy now ignore a NULL
argument.
* The driver now returns an error if you attempt to use "arrayFilters" in an
update with a MongoDB server older than 3.6.
* Update functions include a new "upsertedCount" field in the reply document.
* Replace MD5 with FNV-1a hash to generate ObjectIds (for FIPS compliance).
Bug fixes:
* Functions incorrectly marked with the "const" compiler attribute are now
marked as "pure", fixes build error when link-time optimization is enabled.
Thanks to everyone who contributed to the development of this release.
* A. Jesse Jiryu Davis
* Kevin Albertson
* Evgeni Dobranov
* Spencer McKenney
* Jeremy Mikola
* Roberto C. Sánchez
* Remi Collet
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.10.3
=====================
No change since 1.10.2; released to keep pace with libbson's version.
-- A. Jesse Jiryu Davis
mongo-c-driver 1.10.2
=====================
It is my pleasure to announce the MongoDB C Driver 1.10.2. This release fixes
the libbson and libmongoc installed library filenames and SONAMEs on Linux.
They had changed unintentionally with the switch to CMake in 1.10.0; they are
now consistent with 1.9.x and previous releases. Thanks to Roberto C. Sánchez
for the fix.
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.10.1
=====================
It is my pleasure to announce the MongoDB C Driver 1.10.1. This release fixes
the following bugs introduced in version 1.10.0:
* Client sessions were not prohibited with unacknowledged write concern and
mongoc_bulk_operation_execute; now they are prohibited. Client sessions have
been prohibited with all other unacknowledged writes since 1.10.
* The "arrayFilters" update option, new in MongoDB 3.6 and supported since
libmongoc 1.9.0, was inadvertently prohibited by
mongoc_bulk_operation_update_one_with_opts and
mongoc_bulk_operation_update_many_with_opts in 1.10. The option is now
permitted again.
* The mongoc-stat tool for displaying shared counters was disabled on Linux
and not installed; it is now restored.
Thanks to everyone who contributed to the development of this release.
* A. Jesse Jiryu Davis
* Jeremy Mikola
* Remi Collet
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.10.0
=====================
It is my pleasure to announce MongoDB C Driver 1.10.0. This version drops
support for MongoDB 2.6 and adds the following features and bugfixes:
* libbson and libmongoc are now maintained in the mongo-c-driver repository,
although they are still built as separate libraries, and libbson can still
be used without libmongoc.
* Building libbson and libmongoc now requires CMake on all platforms. The
Autotools build scripts ("configure" and related scripts) have been deleted.
See the "installing" page for updated instructions, including the new
ENABLE_MONGOC option and changes to the ENABLE_BSON option.
* IPv6 is now fully supported and conforms to RFC-6555. If a hostname has both
IPv4 and IPv6 DNS records, the driver tries connecting with IPv6 first. If a
connection can't be established after 250ms then IPv4 is tried in parallel.
Whichever succeeds connection first cancels the other. The successful DNS
result is cached for 10 minutes.
* If CMake is configured with ENABLE_SSL=AUTO (the default), libmongoc now
uses native TLS libraries on Mac and Windows, and OpenSSL everywhere else.
Before, it would search for OpenSSL on all platforms and only use native
TLS on Mac and Windows as a fallback.
* The driver now handshakes SSL connections to multiple servers in a replica
set or sharded cluster in parallel, so long as it uses OpenSSL or Windows
SChannel. (SSL handshakes with Apple's Secure Transport are still serial.)
A larger receive buffer with SChannel increases performance over slow
connections.
* All functions that accept read concern now prohibit it, if MongoDB is too
old to support it (MongoDB 3.0).
* Client sessions are now prohibited with unacknowledged writes.
* mongoc_collection_find_and_modify_with_opts now prohibits write concern if
MongoDB is too old to support it (MongoDB 3.0).
* Other helper functions for commands that write, now prohibit write concern
if MongoDB is too old to support it (pre-3.4):
mongoc_client_read_write_command_with_opts
mongoc_client_write_command_with_opts
mongoc_collection_read_write_command_with_opts
mongoc_collection_write_command_with_opts
mongoc_database_read_write_command_with_opts
mongoc_database_write_command_with_opts
mongoc_collection_aggregate with $out
mongoc_collection_drop_index_with_opts
mongoc_collection_drop_with_opts
mongoc_collection_rename_with_opts
mongoc_database_drop_with_opts
Write concern behavior is unchanged for regular CRUD functions.
* Setting a negative writeConcern level of -2 or smaller, via the "opts"
parameter to functions that accept BSON options, is now prohibited. The
special "w" values -2 through -4 are only used internally. The deprecated
"w=-1" is still allowed, as a synonym for "w=0".
* The Kerberos URI option authMechanismProperties=CANONICALIZE_HOST_NAME:true
is now implemented with the Windows Kerberos provider, SSPI.
* This repository now includes GDB and LLDB customizations for pretty-printing
bson_t structs as JSON while debugging. See the "debugging" page.
* The internal preprocessor symbol HAVE_STRINGS_H has been renamed
BSON_HAVE_STRINGS_H. If you maintain a handwritten bson-config.h you must
rename this symbol.
* The following helper functions do not work with mongoc_client_session_t,
they are deprecated in favor of running MongoDB commands directly with a
function like mongoc_client_read_command_with_opts:
mongoc_client_get_server_status
mongoc_collection_stats
mongoc_collection_validate
* mongoc_cursor_is_alive is now deprecated for mongoc_cursor_more, which is
functionally equivalent.
Thanks to everyone who contributed to the development of this release.
* A. Jesse Jiryu Davis
* Kevin Albertson
* Roberto C. Sánchez
* Jeremy Mikola
* Xiangyu Yao
* Jeroen Ooms
* Derick Rethans
* Kaitlin Mahar
* Pavithra Vetriselvan
* NotSpooky
* Iulian Rotaru
* Katherine Walker
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.9.5
====================
It is my pleasure to announce mongo-c-driver 1.9.5. This release fixes the following bugs:
* New change streams API functions were not marked extern "C"
* mongoc_collection_watch now accepts a pipeline argument as a BSON array, in
addition to accepting a BSON document with a "pipeline" array field
* Crashes in several change stream error handling paths
* Commands could return false with an empty bson_error_t after a replica set
reconfig
* Network error messages omitted the command name when using OP_MSG
Thanks to everyone who contributed to the development of this release.
* A. Jesse Jiryu Davis
* Kevin Albertson