PYTHON-1023 - Explicitly drop support for MongoDB 2.2

We haven't tested against anything older than MongoDB 2.2
in a long timei, but we've never been explicit about what
versions we actually support. As of this commit we are
no longer testing against MongoDB 2.2 either. MongoDB 2.2
reached EOL in February of 2014.

README.rst

@@ -16,6 +16,8 @@ is a `gridfs
 <http://www.mongodb.org/display/DOCS/GridFS+Specification>`_
 implementation on top of ``pymongo``.
 
+PyMongo 3.3.0.dev0 supports MongoDB 2.4, 2.6, 3.0, and 3.2
+
 Support / Feedback
 ==================
 

doc/examples/aggregation.rst

@@ -151,9 +151,8 @@ documents that will be mapped over:
   {u'_id': u'cat', u'value': 1.0}
   {u'_id': u'dog', u'value': 1.0}
 
-With MongoDB 1.8.0 or newer you can use :class:`~bson.son.SON` or
-:class:`collections.OrderedDict` to specify a different database to store the
-result collection:
+You can use :class:`~bson.son.SON` or :class:`collections.OrderedDict` to
+specify a different database to store the result collection:
 
 .. doctest::
 

doc/examples/authentication.rst

@@ -88,7 +88,7 @@ MONGODB-X509
 The MONGODB-X509 mechanism authenticates a username derived from the
 distinguished subject name of the X.509 certificate presented by the driver
 during SSL negotiation. This authentication method requires the use of SSL
-connections with certificate validation and is available in MongoDB 2.5.1
+connections with certificate validation and is available in MongoDB 2.6
 and newer::
 
   >>> import ssl
@@ -202,7 +202,7 @@ SASL PLAIN (RFC 4616)
 ---------------------
 .. versionadded:: 2.6
 
-MongoDB Enterprise Edition versions 2.5.0 and newer support the SASL PLAIN
+MongoDB Enterprise Edition version 2.6 and newer support the SASL PLAIN
 authentication mechanism, initially intended for delegating authentication
 to an LDAP server. Using the PLAIN mechanism is very similar to MONGODB-CR.
 These examples use the $external virtual database for LDAP support::

pymongo/collection.py

@@ -1360,11 +1360,10 @@ class Collection(common.BaseObject):
         See the MongoDB documentation for a full list of supported options by
         server version.
 
-        .. warning:: `dropDups` is not supported by MongoDB 2.7.5 or newer. The
+        .. warning:: `dropDups` is not supported by MongoDB 3.0 or newer. The
           option is silently ignored by the server and unique index builds
           using the option will fail if a duplicate value is detected.
 
-        .. note:: `expireAfterSeconds` requires server version **>= 2.2**
         .. note:: `partialFilterExpression` requires server version **>= 3.2**
 
         :Parameters:

pymongo/database.py

@@ -559,11 +559,6 @@ class Database(common.BaseObject):
         Returns a dict of validation info. Raises CollectionInvalid if
         validation fails.
 
-        With MongoDB < 1.9 the result dict will include a `result` key
-        with a string value that represents the validation results. With
-        MongoDB >= 1.9 the `result` key no longer exists and the results
-        are split into individual fields in the result dict.
-
         :Parameters:
           - `name_or_collection`: A Collection object or the name of a
             collection to validate.
@@ -572,7 +567,7 @@ class Database(common.BaseObject):
           - `full`: Have the server do a more thorough scan of the
             collection. Use with `scandata` for a thorough scan
             of the structure of the collection and the individual
-            documents. Ignored in MongoDB versions before 1.9.
+            documents.
         """
         name = name_or_collection
         if isinstance(name, Collection):