all: sync with master

openapi/openapi.yaml

@@ -1524,10 +1524,15 @@
         'cache_optimistic':
           'type': 'boolean'
         'upstream_mode':
+          'type': 'string'
           'enum':
-          - ''
-          - 'parallel'
-          - 'fastest_addr'
+          - const: ''
+            deprecated: true
+            description: Use `load_balance` instead.
+          - const: 'fastest_addr'
+          - const: 'load_balance'
+          - const: 'parallel'
+          'description': Upstream modes enumeration.
         'use_private_ptr_resolvers':
           'type': 'boolean'
         'resolve_clients':
@@ -2463,6 +2468,11 @@
           'example': true
           'description': >
             Set to true if both certificate and private key are correct.
+        'serve_plain_dns':
+          'type': 'boolean'
+          'example': true
+          'description': >
+            Set to true if plain DNS is allowed for incoming requests.
     'NetInterface':
       'type': 'object'
       'description': 'Network interface info'
@@ -2704,7 +2714,7 @@
             changed.
 
             This behaviour can be changed in the future versions.
-          'type': 'boolean'
+          'type': 'integer'
     'ClientAuto':
       'type': 'object'
       'description': 'Auto-Client information'