DOCSP-16233 arbiters unsupported for continuous releases

Author: andf-mongodb

source/reference/versioning.txt

@@ -40,7 +40,10 @@ Continuous Releases are designed for use with `MongoDB Atlas
 <https://www.mongodb.com/cloud/atlas?tck=docs_server>`_, and are not
 generally supported for use in an on-premise capacity. Continuous
 Releases are not available for use with `MongoDB Ops Manager
-<https://docs.opsmanager.mongodb.com/current/?tck=docs_server>`_.
+<https://docs.opsmanager.mongodb.com/current/?tck=docs_server>`_, and
+are not supported for :ref:`arbiters <replica-set-arbiters>`. If
+arbiters are part of your MongoDB deployment, use the most recent
+:abbr:`LTS (Long Term Support)` release instead.
 
 *Example versions:*