DOCSP-34502: consistent computation of connection mode (#496)

* DOCSP-34502: consistent computation of connection mode

* add list link

* fix

* NR PR fix

Author: rustagir

source/whats-new.txt

@@ -12,6 +12,7 @@ What's New
 
 Learn what's new in:
 
+* :ref:`Version 5.0 <version-5.0>`
 * :ref:`Version 4.11 <version-4.11>`
 * :ref:`Version 4.10 <version-4.10>`
 * :ref:`Version 4.9 <version-4.9>`
@@ -37,6 +38,19 @@ Learn what's new in:
 .. In addition to the deprecations mentioned in specific driver versions on this
    page, anticipated breaking changes include the following:
 
+.. _version-5.0:
+
+What's New in 5.0
+-----------------
+
+The 5.0 driver release introduces the following features:
+
+- Consistent computation of the ``ClusterConnectionMode`` type after
+  instantiating a ``ClusterSettings``. The connection mode defaults to
+  ``SINGLE`` if you specify one host and do not specify a replica set
+  name, or it defaults to ``MULTIPLE`` if you specify more than one
+  host.
+
 .. _version-4.11:
 
 What's New in 4.11
@@ -150,7 +164,6 @@ The 4.11 driver release deprecates the following items:
              .transportSettings(TransportSettings.nettyBuilder().build())
              .build();
 
-
 .. _java-new-features-4.11:
 
 New Features in 4.11