OAS3_1 types SchemaProperties updated per JSON Schema draft 2020-12 (#1310)

.changeset/short-poets-sleep.md

@@ -0,0 +1,9 @@
+---
+'@redocly/openapi-core': patch
+---
+
+OpenAPI 3.1.x defaults to JSON Schema draft 2020-12 and the value of property names defined in `properties` was updated since OpenAPI 3.0.x and JSON Schema draft-04.
+
+In the new JSON Schema specification, each property value within a `properties` schema accepts a `boolean` or `object` schema.
+
+https://json-schema.org/draft/2020-12/json-schema-core#section-10.3.2.1

packages/core/src/types/oas3_1.ts

@@ -181,6 +181,17 @@ const Schema: NodeType = {
   extensionsPrefix: 'x-',
 };
 
+const SchemaProperties: NodeType = {
+  properties: {},
+  additionalProperties: (value: any) => {
+    if (typeof value === 'boolean') {
+      return { type: 'boolean' };
+    } else {
+      return 'Schema';
+    }
+  },
+};
+
 const SecurityScheme: NodeType = {
   properties: {
     type: { enum: ['apiKey', 'http', 'oauth2', 'openIdConnect', 'mutualTLS'] },
@@ -256,6 +267,7 @@ export const Oas3_1Types: Record<string, NodeType> = {
   Info,
   Root,
   Schema,
+  SchemaProperties,
   License,
   Components,
   NamedPathItems: mapOf('PathItem'),