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Author: gmiller-mdb

source/reference/mongosync/mongosync-behavior.txt

@@ -172,6 +172,15 @@ Primary Shards
 When you sync to a sharded destination cluster, ``mongosync`` assigns a
 primary shard to each database by means of a round-robin. 
 
+Embedded Config Server Shards
+'''''''''''''''''''''''''''''
+
+Starting in 8.0. MongoDB introduces support for embedded config server shards.
+
+``mongosync`` supports sync from dedicated config server sharded clusters to 
+embedded config server sharded clusters and vice versa. Additionally, ``mongosync`` 
+supports sync from replica sets to embedded config sharded clusters.
+
 .. warning::
 
    Running :dbcommand:`movePrimary` on the source or destination cluster