Aggregate can now return a cursor
Aggregation pipelines can now be explained
Possible to set maxTimeMS for commands and queries
Transparent support for the new command-based MongoDB write API
New MongoWriteBatch classes (using the new MongoDB write API)
Support for MongoDB Enterprise features (e.g. Kerberos, LDAP, X509)
Option to tune acceptable server latency for secondary reads (secondaryAcceptableLatencyMS)

With this release, some driver functionality which was previously documented as deprecated will now formally raise deprecation notices. This includes:

Instantiating the Mongo class
Calling MongoCursor::slaveOkay()
"wtimeout" and "safe" options for MongoCollection write operations
Manipulating public properties on core classes (such as $collection->w)

Замечание:
No previously deprecated features have been removed.

Changes in behaviour:

Setting the mongo.native_long INI setting now raises an error on 32-bit platforms, and now defaults to true for 64-bit platforms.

MongoDB PHP Driver 1.4.0

The 1.4 series introduced fundemental changes in how connections are created to the MongoDB servers. The driver now utilizes PHP native streams, so all normal PHP stream options apply. Furthermore, an experimental Stream Context Support was added.

The 1.4.x series also added support for MongoDB 2.4.x.

The most important improvements however deal with the handling of replica sets, especially nodes that timeout and nodes that are unreachable for various reasons. Besides the improvements to replica set handling, this release addresses issues with read preferences through mongos nodes. It also adds support for SSL enabled connections as well as journal and fsync connection string options.

MongoDB PHP Driver 1.3.0

The 1.3 series introduced several major changes to the extension such as completely rewritten connection handling (and removal of the pooling mechanism), support for ReadPreferences and change the default WriteConcerns to be acknowledged by introducing a new class MongoClient which serves as a replacement class for the now deprecated Mongo class.

The driver now also supports connecting to multiple mongos instances (the Mongo Shard router) for loadbalancing.

Other enhancements include improved logging for easier connection handling debugging with MongoLog and support for the » Aggregation Framework via the MongoCollection::aggregate() method.

Changes to existing methods

Following is a list of all improvements to existing methods since their inception.

Version	Function	Description
1.7.0	MongoDB::execute	This method has been deprecated as a result of the underlaying eval command being deprecated in MongoDB 3.0+.
1.6.0	MongoCollection::count	The second parameter is now an options array. Passing limit and skip as the second and third parameters, respectively, is deprecated.
	MongoDB::getCollectionNames	Changed first parameter to be an array of options. Pre-1.6.0, the first parameter was a boolean indicating the "includeSystemCollections" option.
	MongoDB::listCollections	Changed first parameter to be an array of options. Pre-1.6.0, the first parameter was a boolean indicating the "includeSystemCollections" option.
1.5.0	log_cmd_delete	Only available when connected to MongoDB 2.6.0+
	log_cmd_insert	Only available when connected to MongoDB 2.6.0+
	log_cmd_update	Only available when connected to MongoDB 2.6.0+
	log_write_batch	Only available when connected to MongoDB 2.6.0+
	MongoBinData::__construct	The default changed from 2 (MongoBinData::BYTE_ARRAY) to 0 (MongoBinData::GENERIC).
	MongoClient::__construct	Added "authSource".
	MongoClient::__construct	Added "authMechanism", "gssapiServiceName", and "secondaryAcceptableLatencyMS".
	MongoCollection::aggregate	Added optional options argument
	MongoCollection::batchInsert	Added the "wTimeoutMS" option, which replaces "wtimeout". Emits E_DEPRECATED when "wtimeout" is used. Added the "socketTimeoutMS" option, which replaces "timeout". Emits E_DEPRECATED when "timeout" is used. Emits E_DEPRECATED when "safe" is used.
	MongoCollection::ensureIndex	Renamed the "wtimeout" option to "wTimeoutMS". Emits E_DEPRECATED when "wtimeout" is used. Renamed the "timeout" option to "socketTimeoutMS". Emits E_DEPRECATED when "timeout" is used. Emits E_DEPRECATED when "safe" is used.
	MongoCollection::findOne	Added optional options argument.
	MongoCollection::group	Added "maxTimeMS" option.
	MongoCollection::insert	Added the "wTimeoutMS" option, which replaces "wtimeout". Emits E_DEPRECATED when "wtimeout" is used. Added the "socketTimeoutMS" option, which replaces "timeout". Emits E_DEPRECATED when "timeout" is used. Emits E_DEPRECATED when "safe" is used.
	MongoCollection::remove	Added "wTimeoutMS" option, which replaces "wtimeout". Emits E_DEPRECATED when "wtimeout" is used. Added "socketTimeoutMS" option, which replaces "timeout". Emits E_DEPRECATED when "timeout" is used. Emits E_DEPRECATED when "safe" is used.
	MongoCollection::save	Added "wTimeoutMS" option, which replaces "wtimeout". Emits E_DEPRECATED when "wtimeout" is used. Added "socketTimeoutMS" option, which replaces "timeout". Emits E_DEPRECATED when "timeout" is used. Emits E_DEPRECATED when "safe" is used.
	MongoCollection::toIndexString	This method has been deprecated.
	MongoCollection::update	Added the "wTimeoutMS" option, which replaces "wtimeout". Emits E_DEPRECATED when "wtimeout" is used. Added the "socketTimeoutMS" option, which replaces "timeout". Emits E_DEPRECATED when "timeout" is used. Emits E_DEPRECATED when "safe" is used.
	MongoCursor::slaveOkay	This method has been deprecated in favour of MongoCursor::setReadPreference and .
	MongoDB::command	Renamed the "timeout" option to "socketTimeoutMS". Emits E_DEPRECATED when "timeout" is used. Added hash by-reference parameter.
1.4.5	MongoCursor::batchSize	Before 1.4.5, this method would throw an MongoCursorException if the cursor had already started iterating.
1.4.0	MongoClient::__construct	Added "ssl" option and support for connecting over SSL. Added "wTimeoutMS" option, which replaces "wTimeout". Emits E_DEPRECATED when "slaveOkay" or "timeout" is used.
	MongoCursor::hint	The index argument now supports index names as string values. In versions before 1.4.0, only array or object values were accepted.
	MongoCursor::setFlag	Support for flag 3 (OPLOG_REPLAY) is added. Versions before 1.4.0 would throw a warning saying that the flag is unsupported.
	MongoDB::createCollection	In versions before 1.4.0, the options were all arguments to the method. The function synopsis in those older versions is: public MongoCollectionMongoDB::createCollection stringname boolcappedFALSE intsize0 intmax0 The meaning of the options is the same as described under the options argument above.
	MongoId::__construct	An exception is thrown when passed invalid string
1.3.4	MongoClient::__construct	Added "connectTimeoutMS" and "socketTimeoutMS" options.
	MongoCollection::batchInsert	Added "wtimeout" option.
	MongoCollection::ensureIndex	Added "wtimeout" option.
	MongoCollection::insert	Added "wtimeout" option.
	MongoCollection::remove	Added "wtimeout" option.
	MongoCollection::update	Added "wtimeout" option.
1.3.3	MongoClient::getReadPreference	The return value has changed to be consistent with MongoClient::setReadPreference. The type value was changed from a number to a string, type_string was removed, and tagsets now expresses tags as key/value pairs instead of colon-delimited strings.
	MongoCollection::getReadPreference	The return value has changed to be consistent with MongoCollection::setReadPreference. The type value was changed from a number to a string, type_string was removed, and tagsets now expresses tags as key/value pairs instead of colon-delimited strings.
	MongoDB::getReadPreference	The return value has changed to be consistent with MongoDB::setReadPreference. The type value was changed from a number to a string, type_string was removed, and tagsets now expresses tags as key/value pairs instead of colon-delimited strings.
1.3.0	MongoClient::close	The connection parameter to this function was added in 1.3.0. Before that, only the write connection would be closed by this method.
	MongoClient::__construct	Added "readPreference", "readPreferenceTags", "w", and "wTimeout" options.
	MongoCollection::batchInsert	Added "w" option.
	MongoCollection::ensureIndex	Added "w" option. The options parameter no longer accepts a boolean to signify a unique index. Instead, this now has to be done with array('unique' => true).
	MongoCollection::insert	Added "w" option. The options parameter no longer accepts a boolean to signify an acknowledged write. Instead, this now has to be done with array('w' => 1) (the default behaviour of MongoClient).
	MongoCollection::remove	Added "w" option. The options parameter no longer accepts a boolean to signify "justOne". Instead, this now has to be done with array('justOne' => true).
	MongoCollection::update	Added "w" option. The options parameter no longer accepts a boolean to signify an upsert. Instead, this now has to be done with array('upsert' => true).
	MongoDB::listCollections	Added the includeSystemCollections parameter.
	MongoGridFSCursor::key	The document's _id is returned as a string value, since the key should be unique. Pre-1.3.0, filename was returned.
1.2.11	Mongo::getPoolSize	Emits E_DEPRECATED when used.
	Mongo::getSlave	Emits E_DEPRECATED when used.
	Mongo::getSlaveOkay	Emits E_DEPRECATED when used.
	Mongo::poolDebug	Emits E_DEPRECATED when used.
	Mongo::setSlaveOkay	Emits E_DEPRECATED when used.
	Mongo::switchSlave	Emits E_DEPRECATED when used.
	MongoBinData::__construct	Emits E_DEPRECATED when the second argument is not used. The default value for type may change in the near future.
	MongoCollection::ensureIndex	Emits E_DEPRECATED when options is scalar.
	MongoCollection::getSlaveOkay	Emits E_DEPRECATED when used.
	MongoCollection::group	Emits E_DEPRECATED when options is scalar.
	MongoCollection::remove	Emits E_DEPRECATED when options is scalar.
	MongoCollection::setSlaveOkay	Emits E_DEPRECATED when used.
	MongoCollection::update	Emits E_DEPRECATED when options is scalar.
	MongoCursor::doQuery	Emits E_DEPRECATED when used.
	MongoDB::authenticate	Emits E_DEPRECATED when used. Please pass in the authentication details to the constructor.
	MongoDB::forceError	Emits E_DEPRECATED when used.
	MongoDB::getSlaveOkay	Emits E_DEPRECATED when used.
	MongoDB::prevError	Emits E_DEPRECATED when used.
	MongoDB::resetError	Emits E_DEPRECATED when used.
	MongoDB::setSlaveOkay	Emits E_DEPRECATED when used.
	MongoPool::getSize	Emits E_DEPRECATED when used.
	MongoPool::info	Emits E_DEPRECATED when used.
	MongoPool::setSize	Emits E_DEPRECATED when used.
1.2.10	MongoClient::getHosts	Support for non-replicasets was added. The returned array elements now also include the hostname and port.
1.2.7	MongoCollection::batchInsert	Added "continueOnError" option.
1.2.5	MongoGridFS::storeUpload	Changed second parameter to an array of metadata. Pre-1.2.5, the second parameter was an optional string overriding the filename.
1.2.0	MongoClient::close	Before version 1.2.0 the driver would not use persistent connections by default, and all connections would be closed as soon as a MongoDB connection went out if scope. Since version 1.2.0 this is no longer the case and it is a bad idea to call close as you might end up overloading the server with connections under high load.
	MongoClient::__construct	Added "username" and "password" options. Removed "persist" option, as all connections are now persistent. It can still be used, but it doesn't affect anything. "persist" If the connection should be persistent. If set, the connection will be persistent. The string representation of the value is used as an ID for the connection, so two instances of MongoClient that are initialized with array("persist" => "foobar") will share the same database connection, whereas an instance initialized with array("persist" => "barbaz") will use a different database connection. The "replicaSet" option now takes a string, not a boolean.
	MongoCollection::ensureIndex	Added "timeout" option.
	MongoCollection::insert	Added "timeout" option.
	MongoCollection::remove	Added "timeout" option.
	MongoCollection::save	Added "timeout" option.
	MongoCollection::update	Added "timeout" option.
	MongoDB::command	Added options parameter with a single option: "timeout".
1.1.0	MongoCursor::info	Added a number of other fields, including id (the cursor id), at (the driver's counter of which document is current), numReturned (the number returned by the server in the current batch), and server (which server the query was sent to—useful in conjunction with .
1.0.11	MongoCollection::ensureIndex	The "safe" option will trigger a primary failover, if necessary. MongoException will be thrown if the index name (either generated or set) is longer than 128 bytes.
	MongoCollection::insert	Disconnects on "not master" errors if "safe" is set.
	MongoCollection::remove	Disconnects on "not master" errors if "safe" is set.
	MongoCollection::save	Disconnects on "not master" errors if "safe" is set.
	MongoCollection::update	Disconnects on "not master" errors if "safe" is set.
1.0.10	MongoCursor::info	Added started_iterating field, a boolean indicating if cursor is pre- or post-query.
1.0.9	MongoClient::__construct	Added "replicaSet" option.
	MongoCollection::batchInsert	Added ability to pass integers to the "safe" option, which previously only accepted booleans. Added "fsync" option.
	MongoCollection::insert	Added ability to pass integers to the "safe" option, which previously only accepted booleans. Added "fsync" option. The return type was changed to be an array containing error information if the "safe" option is used. Otherwise, a boolean is returned as before.
	MongoCollection::remove	Added ability to pass integers to the "safe" option, which previously only accepted booleans. Added "fsync" option. The return type was changed to be an array containing error information if the "safe" option is used. Otherwise, a boolean is returned as before.
	MongoCollection::save	Added "fsync" option.
	MongoCollection::update	Added ability to pass integers to the "safe" option, which previously only accepted booleans. Added "fsync" option. The return type was changed to be an array containing error information if the "safe" option is used. Otherwise, a boolean is returned as before.
1.0.7	MongoCollection::count	Added limit and skip as second and third parameters, respectively.
1.0.5	MongoCollection::batchInsert	Added options parameter.
	MongoCollection::ensureIndex	Added the "name" option to override index name creation.
	MongoCollection::remove	Changed second parameter to be an array of options. Pre-1.0.5, the second parameter was a boolean indicating the "safe" option.
	MongoCollection::save	Added options parameter.
	MongoCollection::update	Added "safe" option.
1.0.2	MongoClient::__construct	Changed constructor to take an array of options. Pre-1.0.2, the constructor took the following parameters: server The server name. connect Optional boolean parameter specifying if the constructor should connect to the database before returning. Defaults to TRUE. persistent If the connection should be persistent. paired If the connection should be paired.
	MongoCollection::ensureIndex	Changed options parameter from boolean to array. Pre-1.0.2, the second parameter was an optional boolean value specifying a unique index.
	MongoCollection::insert	Changed second parameter to be an array of options. Pre-1.0.2, the second parameter was a boolean indicating the "safe" option.
1.0.1	MongoCollection::insert	Throw a MongoCursorException if the "safe" option is set and the insert fails.
	MongoCollection::update	Changed options parameter from boolean to array. Pre-1.0.1, the second parameter was an optional boolean value specifying an upsert.

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