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Release Notes - Python Driver - Version 2.9 - HTML format

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Bug

[PYTHON-933] - "maxPoolSize=0" allowed, causes hang
[PYTHON-951] - Corrupt GridFS files can send GridOut.read / readline into an infinite loop
[PYTHON-977] - Some BSON types are hashable in python 2 but not python 3

Epic

[PYTHON-878] - 3.0 migration support.

Task

[PYTHON-832] - Re-enable copy_database tests in auth.py for MongoDB 3.0+
[PYTHON-879] - Backport new read preference classes from 3.x.
[PYTHON-880] - Backport WriteConcern class from 3.x
[PYTHON-881] - Backport CodecOptions class from 3.x.
[PYTHON-882] - Backport get_database, get_collection, and with_options from 3.x.
[PYTHON-883] - Backport CursorType from 3.x
[PYTHON-884] - 3.0 migration guide.
[PYTHON-885] - Support maxPoolSize URI option in 2.x
[PYTHON-886] - Add CRUD API find / find_one options
[PYTHON-887] - Deprecate all features removed in 3.0.
[PYTHON-888] - Add codec_options support to the bson module.
[PYTHON-889] - The aggregate method should always return CommandCursor when passed the cursor option
[PYTHON-890] - Support localThresholdMS URI option
[PYTHON-911] - Add Database.client alias for 3.0 migration support.
[PYTHON-945] - Remove validation of the OP_REPLY "startingFrom" field
[PYTHON-949] - Support CodecOptions in message.py
[PYTHON-950] - Backport CRUD write methods
[PYTHON-955] - Backport "connect" option.
[PYTHON-963] - Fix doctests for modern MongoDB.
[PYTHON-965] - Add address attribute to MongoClient
[PYTHON-966] - 3.0 compatibility for read preference options
[PYTHON-967] - print is a function with Python 3
[PYTHON-980] - Document deprecation of Database.eval
[PYTHON-996] - Python 3.5 support

Improvement

[PYTHON-834] - option to disable hostname validation during CA validation
[PYTHON-940] - Unhelpful and pretty wrong error message
[PYTHON-954] - TxMongo is recommended for production use
[PYTHON-974] - Use appropriate hash comparators for sensitive functions

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Release Notes - Python Driver - Version 2.9
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
<h2>        Bug
</h2>
<ul>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-933'>PYTHON-933</a>] -         &quot;maxPoolSize=0&quot; allowed, causes hang
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-951'>PYTHON-951</a>] -         Corrupt GridFS files can send GridOut.read / readline into an infinite loop
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-977'>PYTHON-977</a>] -         Some BSON types are hashable in python 2 but not python 3
</li>
</ul>
    
<h2>        Epic
</h2>
<ul>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-878'>PYTHON-878</a>] -         3.0 migration support.
</li>
</ul>
            
<h2>        Task
</h2>
<ul>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-832'>PYTHON-832</a>] -         Re-enable copy_database tests in auth.py for MongoDB 3.0+
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-879'>PYTHON-879</a>] -         Backport new read preference classes from 3.x.
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-880'>PYTHON-880</a>] -         Backport WriteConcern class from 3.x
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-881'>PYTHON-881</a>] -         Backport CodecOptions class from 3.x.
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-882'>PYTHON-882</a>] -         Backport get_database, get_collection, and with_options from 3.x.
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-883'>PYTHON-883</a>] -         Backport CursorType from 3.x
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-884'>PYTHON-884</a>] -         3.0 migration guide.
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-885'>PYTHON-885</a>] -         Support maxPoolSize URI option in 2.x
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-886'>PYTHON-886</a>] -         Add CRUD API find / find_one options
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-887'>PYTHON-887</a>] -         Deprecate all features removed in 3.0.
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-888'>PYTHON-888</a>] -         Add codec_options support to the bson module.
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-889'>PYTHON-889</a>] -         The aggregate method should always return CommandCursor when passed the cursor option
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-890'>PYTHON-890</a>] -         Support localThresholdMS URI option
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-911'>PYTHON-911</a>] -         Add Database.client alias for 3.0 migration support.
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-945'>PYTHON-945</a>] -         Remove validation of the OP_REPLY &quot;startingFrom&quot; field
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-949'>PYTHON-949</a>] -         Support CodecOptions in message.py
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-950'>PYTHON-950</a>] -         Backport CRUD write methods
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-955'>PYTHON-955</a>] -         Backport &quot;connect&quot; option.
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-963'>PYTHON-963</a>] -         Fix doctests for modern MongoDB.
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-965'>PYTHON-965</a>] -         Add address attribute to MongoClient
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-966'>PYTHON-966</a>] -         3.0 compatibility for read preference options
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-967'>PYTHON-967</a>] -         print is a function with Python 3
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-980'>PYTHON-980</a>] -         Document deprecation of Database.eval
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-996'>PYTHON-996</a>] -         Python 3.5 support
</li>
</ul>
    
<h2>        Improvement
</h2>
<ul>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-834'>PYTHON-834</a>] -         option to disable hostname validation during CA validation
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-940'>PYTHON-940</a>] -         Unhelpful and pretty wrong error message
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-954'>PYTHON-954</a>] -         TxMongo is recommended for production use
</li>
<li>[<a href='https://jira.mongodb.org/browse/PYTHON-974'>PYTHON-974</a>] -         Use appropriate hash comparators for sensitive functions
</li>
</ul>