PYTHON-5859 - Remove mention and link to IWM from the changelog (mongodb#2899)

Author: NoahStapp

doc/changelog.rst

@@ -21,9 +21,8 @@ PyMongo 4.17 brings a number of changes including:
 - Added the :meth:`~pymongo.asynchronous.client_session.AsyncClientSession.bind` and :meth:`~pymongo.client_session.ClientSession.bind` methods
   that allow users to bind a session to all database operations within the scope of a context manager instead of having to explicitly pass the session to each individual operation.
   See the `Transactions docs <https://www.mongodb.com/docs/languages/python/pymongo-driver/current/crud/transactions/#methods>`_ for examples and more information.
-- Added support for MongoDB's Intelligent Workload Management (IWM) and ingress connection rate limiting features.
-  The driver now gracefully handles write-blocking scenarios and optimizes connection establishment during high-load conditions to maintain application availability.
-  See the `IWM <https://www.mongodb.com/docs/atlas/production-notes>`_ or `Overload Errors <https://www.mongodb.com/docs/atlas/overload-errors/?interface=driver&language=python>`_ docs for more information.
+- Added support for MongoDB's Intelligent Workload Management (IWM) and ingress connection rate limiting features in MongoDB server version 9.0.
+  The driver will gracefully handle write-blocking scenarios and optimizes connection establishment during high-load conditions to maintain application availability.
 
 Changes in Version 4.16.0 (2026/01/07)
 --------------------------------------

pymongo/asynchronous/mongo_client.py

@@ -609,6 +609,7 @@ def __init__(
             details.
 
           | **Overload retry options:**
+          | (Requires MongoDB server version 9.0+.)
 
           - `max_adaptive_retries`: (int) How many retries to allow for overload errors. Defaults to ``2``.
           - `enable_overload_retargeting`: (boolean) Whether overload retargeting is enabled for this client.

pymongo/synchronous/mongo_client.py

@@ -610,6 +610,7 @@ def __init__(
             details.
 
           | **Overload retry options:**
+          | (Requires MongoDB server version 9.0+.)
 
           - `max_adaptive_retries`: (int) How many retries to allow for overload errors. Defaults to ``2``.
           - `enable_overload_retargeting`: (boolean) Whether overload retargeting is enabled for this client.