Merge pull request #5651 from Karl-WE/patch-5

more restrictions of SQL Express Local DB and security concerns

Author: ktoliver

docs/database-engine/configure-windows/sql-server-express-localdb.md

@@ -60,6 +60,10 @@ The instance collation for LocalDB is set to `SQL_Latin1_General_CP1_CI_AS` and
 
 ### Restrictions
 
+- LocalDB cannot be patched beyond Service Packs. CUs and Security Updates cannot be applied manually and will not be applied via Windows Update, Windows Update for Business, or other methods.
+
+- LocalDB cannot be managed remotely via SQL Management Studio.
+
 - LocalDB cannot be a merge replication subscriber.
 
 - LocalDB does not support FILESTREAM.
@@ -142,4 +146,4 @@ An instance of SQL Server Express LocalDB is an instance created by a user for t
 
 ## See Also
 
-[SqlLocalDB Utility](../../tools/sqllocaldb-utility.md)
+[SqlLocalDB Utility](../../tools/sqllocaldb-utility.md)