DOCSP-37452: srvServiceName cxn opt (#593)

* DOCSP-37452: srvServiceName cxn opt

* fix

(cherry picked from commit 3f5638c)
(cherry picked from commit f4d18a2)

Author: rustagir

source/fundamentals/connection/connection-options.txt

@@ -408,6 +408,20 @@ relevant options.
        | **Default**: ``0``
        | **Connection URI Example**: ``srvMaxHosts=3``
 
+   * - **SrvServiceName**
+     - | The service name of the `SRV resource records <https://www.rfc-editor.org/rfc/rfc2782>`__
+       | that the driver retrieves to construct your seedlist. This
+       | property overrides the default service name for SRV lookup in
+       | discovery and polling.
+       |
+       | You can use this property only if the connection-string scheme is set
+       | to ``ConnectionStringScheme.MongoDBPlusSrv``. You cannot use it when connecting
+       | to a replica set.
+       |
+       | **Data Type**: {+string-data-type+}
+       | **Default**: ``"mongodb"``
+       | **Connection URI Example**: ``srvServiceName="customname"``
+
    * - **SslSettings**
      - | TLS/SSL options, including client certificates, revocation handling, and
        | enabled and disabled TLS/SSL protocols.

source/whats-new.txt

@@ -134,6 +134,7 @@ The 2.26 driver release includes the following new features:
 - Implemented read and write retries to other ``mongos`` instances when
   possible.
 
+.. _csharp-version-2.25:
 .. _version-2.25:
 
 What's New in 2.25
@@ -143,12 +144,17 @@ The 2.25 driver release includes the following new features:
 
 - Added support for the ``MONGODB-OIDC`` authentication mechanism and automatic
   token acquisition for Azure Identity Provider.
+
 - Added the class name to the error message reported when
   ``BsonClassMapSerializer`` cannot locate a matching creator.
+
 - Added a ``LoggedStages`` field to surface the MQL executed after performing
   a LINQ query.
+
 - Added support for overriding the ``"mongodb"`` service name with a custom one
-  by using the ``srvServiceName`` connection option.
+  by using the ``srvServiceName`` connection option. To learn more, see
+  the :ref:`csharp-connection-options` guide.
+
 - Improved behavior of bulk write operations to prevent enumerating the requests
   parameter more than once.