DOCSP-27170: aws sdk is an optional dependency (#490)

* DOCSP-27170: aws sdk is an optional dependency

* DB PR fixes 1

Author: rustagir

source/whats-new.txt

@@ -41,9 +41,30 @@ What's New in 5.0
 
 New features of the 5.0 {+driver-short+} release include:
 
-- Removal of ``Collection.insert()``, ``Collection.update()``, and
-  ``Collection.remove()`` helper methods.
+- Optional installation of ``@aws-sdk/credential-providers`` as a dependency.
 
+  - The driver no longer includes AWS SDK modules by default. Use the
+    following ``npm`` command to install the SDK:
+
+    .. code-block:: bash
+
+       npm install --save @aws-sdk/[email protected]
+
+    If you install the SDK, ``npm`` notifies you if the version of the SDK you
+    installed is incompatible with the driver. Once you install the
+    dependency successfully, the driver uses the AWS SDK itself to
+    manage credentials from the environment.
+
+.. important:: Breaking Change: Removal of CRUD Helper Methods
+
+   This release removes support for the ``Collection.insert()``, ``Collection.update()``, and
+   ``Collection.remove()`` helper methods. The following list provides
+   instructions on how to replace the functionality of the removed methods:
+
+   - Migrate from ``Collection.insert()`` to ``insertOne()`` or ``insertMany()``
+   - Migrate from ``Collection.update()`` to ``updateOne()`` or ``updateMany()``
+   - Migrate from ``Collection.remove()`` to ``deleteOne()`` or ``deleteMany()``
+   
 .. _version-4.13:
 
 What's New in 4.13