mongoid.yml in mongoid-7.0.0.beta

- old
+ new

@@ -9,14 +9,10 @@
       # Provides the hosts the default client can connect to. Must be an array
       # of host:port pairs. (required)
       hosts:
         - localhost:27017
       options:
-        # Note that all options listed below are Ruby driver client options (the mongo gem).
-        # Please refer to the driver documentation of the version of the mongo gem you are using
-        # for the most up-to-date list of options.
-        #
         # Change the default write concern. (default = { w: 1 })
         # write:
         #   w: 1
 
         # Change the default read preference. Valid options for mode are: :secondary,
@@ -147,9 +143,12 @@
     # belongs_to_required_by_default: true
 
     # Application name that is printed to the mongodb logs upon establishing a
     # connection in server versions >= 3.4. Note that the name cannot exceed 128 bytes.
     # app_name: MyApplicationName
+
+    # Use background indexes by default if `background` option not specified. (default: false)
+    # background_indexing: false
 test:
   clients:
     default:
       database: <%= database_name || app_name %>_test
       hosts: