edits

Author: stephmarie17

source/write/transactions.txt

@@ -35,14 +35,14 @@ meets an expectation of atomicity, consistency, isolation, and durability.
 MongoDB guarantees that the data involved in your transaction operations remains
 consistent, even if the operations encounter unexpected errors.
 
-When using the {+driver-short+}, you can start a ``ClientSession`` by calling
+When using the {+driver-short+}, you can start a ``Mongo::Session`` by calling
 the ``start_session`` method on your client. Then, you can perform transactions
 within the session.
 
 .. warning::
 
-   Use a ``ClientSession`` only in operations running on the ``MongoClient``
-   that created it. Using a ``ClientSession`` with a different ``MongoClient``
+   Use a ``Mongo::Session`` only in operations running on the ``Mongo::Client``
+   that created it. Using a ``Mongo::Session`` with a different ``Mongo::Client``
    results in operation errors.
 
 Methods 
@@ -66,8 +66,7 @@ following table describes the methods you can use to manage a transaction:
          the session.
        |
        | You can set transaction options including read concern, write concern,
-         and read preference by passing a ``TransactionOptions`` instance as a
-         parameter.
+         and read preference by passing a ``Hash`` as a parameter.
 
    * - ``commit_transaction``
      - | Commits the active transaction for this session. This method returns an
@@ -109,13 +108,12 @@ actions:
 
 .. sharedinclude:: dbx/transactions-parallelism.rst
 
-   .. replacement:: driver-specific-content
-
     The {+driver-short+} does not support running parallel operations within a
     single transaction.
 
     .. TODO:
          Replace content to use this wording when the bulk write guide is added:
+    .. replacement:: driver-specific-content
     ..   If you're using {+mdb-server+} v8.0 or later, you can perform
     ..   write operations on multiple namespaces within a single transaction by using
     ..   the ``bulk-write`` method. For more information, see the :ref:`<ruby-bulk-write>`