diff --git a/bson/__init__.py b/bson/__init__.py
index c95edbb67..d0410ac68 100644
--- a/bson/__init__.py
+++ b/bson/__init__.py
@@ -405,18 +405,6 @@ if _use_c:
     _dict_to_bson = _cbson._dict_to_bson
 
 
-def _to_dicts(data, as_class=dict, tz_aware=True):
-    """DEPRECATED - `_to_dicts` has been renamed to `decode_all`.
-
-    .. versionchanged:: 1.9
-       Deprecated in favor of :meth:`decode_all`.
-    .. versionadded:: 1.7
-       The `as_class` parameter.
-    """
-    warnings.warn("`_to_dicts` has been renamed to `decode_all`",
-                  DeprecationWarning)
-    return decode_all(data, as_class, tz_aware)
-
 
 def decode_all(data, as_class=dict, tz_aware=True):
     """Decode BSON data to multiple documents.
@@ -474,17 +462,6 @@ class BSON(str):
     """BSON (Binary JSON) data.
     """
 
-    @classmethod
-    def from_dict(cls, dct, check_keys=False, uuid_subtype=OLD_UUID_SUBTYPE):
-        """DEPRECATED - `from_dict` has been renamed to `encode`.
-
-        .. versionchanged:: 1.9
-           Deprecated in favor of :meth:`encode`
-        """
-        warnings.warn("`from_dict` has been renamed to `encode`",
-                      DeprecationWarning)
-        return cls.encode(dct, check_keys, uuid_subtype)
-
     @classmethod
     def encode(cls, document, check_keys=False, uuid_subtype=OLD_UUID_SUBTYPE):
         """Encode a document to a new :class:`BSON` instance.
@@ -507,20 +484,6 @@ class BSON(str):
         """
         return cls(_dict_to_bson(document, check_keys, uuid_subtype))
 
-    def to_dict(self, as_class=dict, tz_aware=False):
-        """DEPRECATED - `to_dict` has been renamed to `decode`.
-
-        .. versionchanged:: 1.9
-           Deprecated in favor of :meth:`decode`
-        .. versionadded:: 1.8
-           The `tz_aware` parameter.
-        .. versionadded:: 1.7
-           The `as_class` parameter.
-        """
-        warnings.warn("`to_dict` has been renamed to `decode`",
-                      DeprecationWarning)
-        return self.decode(as_class, tz_aware)
-
     def decode(self, as_class=dict, tz_aware=False):
         """Decode this BSON data.
 
diff --git a/pymongo/common.py b/pymongo/common.py
index 581329d30..0a96e56f1 100644
--- a/pymongo/common.py
+++ b/pymongo/common.py
@@ -183,23 +183,6 @@ class BaseObject(object):
                 else:
                     self.__set_safe_option(option, value)
 
-    def __get_slave_okay(self):
-        """DEPRECATED. Use `read_preference` instead.
-
-        .. versionchanged:: 2.1
-           Deprecated slave_okay.
-        .. versionadded:: 2.0
-        """
-        return self.__slave_okay
-
-    def __set_slave_okay(self, value):
-        """Property setter for slave_okay"""
-        warnings.warn("slave_okay is deprecated. Please use "
-                      "read_preference instead.", DeprecationWarning)
-        self.__slave_okay = validate_boolean('slave_okay', value)
-
-    slave_okay = property(__get_slave_okay, __set_slave_okay)
-
     def __get_read_pref(self):
         """The read preference for this instance.