feat: add OpenAPI 3.2 support

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## [Unreleased]
+
+### Features
+
+- Add OpenAPI 3.2 support. OAS 3.2 uses the same JSON Schema dialect as 3.1 (no breaking changes), so the 3.1 codepath handles it correctly. Fixes #228.
+
 ## [2.5.0] - 2025-12-08
 
 ### Bug Fixes

README.md

@@ -1,6 +1,6 @@
 # JSONSchemer
 
-JSON Schema validator. Supports drafts 4, 6, 7, 2019-09, 2020-12, OpenAPI 3.0, and OpenAPI 3.1.
+JSON Schema validator. Supports drafts 4, 6, 7, 2019-09, 2020-12, OpenAPI 3.0, OpenAPI 3.1, and OpenAPI 3.2.
 
 ## Installation
 

lib/json_schemer/openapi.rb

@@ -6,7 +6,7 @@ def initialize(document, **options)
 
       version = document['openapi']
       case version
-      when /\A3\.1\.\d+\z/
+      when /\A3\.[12]\.\d+\z/
         @document_schema = JSONSchemer.openapi31_document
         meta_schema = document.fetch('jsonSchemaDialect') { OpenAPI31::BASE_URI.to_s }
       when /\A3\.0\.\d+\z/

test/open_api_test.rb

@@ -72,6 +72,27 @@ class OpenAPITest < Minitest::Test
     'hungry' => 'kinda'
   }
 
+  def test_openapi_3_2_accepted
+    openapi = JSONSchemer.openapi({
+      'openapi' => '3.2.0',
+      'info' => { 'title' => 'Test', 'version' => '1.0' },
+      'paths' => {},
+      'components' => {
+        'schemas' => {
+          'Widget' => {
+            'type' => 'object',
+            'properties' => {
+              'name' => { 'type' => 'string' }
+            }
+          }
+        }
+      }
+    })
+    schema = openapi.schema('Widget')
+    assert(schema.valid?({ 'name' => 'hello' }))
+    refute(schema.valid?({ 'name' => 42 }))
+  end
+
   def test_discriminator_specification_example
     openapi = {
       'openapi' => '3.1.0',