use localhost

skip host table update
test with ruby 3.4
2025-12-30 12:07:06 +00:00 · 2025-09-27 16:33:24 +08:00 · 2025-09-27 16:19:59 +08:00 · 2025-09-27 16:17:40 +08:00 · 2025-09-27 15:53:48 +08:00 · 2025-09-27 15:32:08 +08:00
8718 changed files with 9348 additions and 168921 deletions
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -1,6 +1,6 @@
 <!--
 Please follow the issue template below for bug reports and feature requests.
-Also please indicate in the issue title which language/library is concerned. E.g.:  [JAVA] Bug generating foo with bar 
+Also please indicate in the issue title which language/library is concerned. Eg:  [JAVA] Bug generating foo with bar 
 -->

 ##### Description
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -18,7 +18,7 @@ assignees: ''

 <!--
 Please follow the issue template below for bug reports.
-Also please indicate in the issue title which language/library is concerned. E.g.:  [BUG][JAVA] Bug generating foo with bar 
+Also please indicate in the issue title which language/library is concerned. Eg:  [BUG][JAVA] Bug generating foo with bar 
 -->

 ##### Description
--- a/.github/workflows/linux.yaml
+++ b/.github/workflows/linux.yaml
@@ -44,12 +44,12 @@ jobs:
          restore-keys: |
            ${{ runner.os }}-gradle-

-      - uses: gradle/actions/setup-gradle@v5
+      - uses: gradle/actions/setup-gradle@v4
        with:
          gradle-version: '8.14.3'

      - name: Setup Maven
-        uses: s4u/setup-maven-action@v1.19.0
+        uses: s4u/setup-maven-action@v1.18.0
        with:
          java-version: ${{ matrix.java }}
          maven-version: 3.8.8
@@ -91,7 +91,7 @@ jobs:
      - name: Check out code
        uses: actions/checkout@v5
      - name: Setup Maven
-        uses: s4u/setup-maven-action@v1.19.0
+        uses: s4u/setup-maven-action@v1.18.0
        with:
          java-version: 11
          maven-version: 3.8.8
--- a/.github/workflows/samples-go.yaml
+++ b/.github/workflows/samples-go.yaml
@@ -6,13 +6,13 @@ on:
      - 'samples/server/petstore/go-echo-server/**'
      - 'samples/server/petstore/go-api-server/**'
      - 'samples/server/petstore/go-chi-server/**'
-      - 'samples/server/others/go-server/**'
+      - 'samples/server/others/go-server/no-body-path-params/**'
  pull_request:
    paths:
      - 'samples/server/petstore/go-echo-server/**'
      - 'samples/server/petstore/go-api-server/**'
      - 'samples/server/petstore/go-chi-server/**'
-      - 'samples/server/others/go-server/**'
+      - 'samples/server/others/go-server/no-body-path-params/**'

 jobs:
  build:
@@ -26,7 +26,6 @@ jobs:
          - samples/server/petstore/go-api-server/
          - samples/server/petstore/go-chi-server/
          - samples/server/others/go-server/no-body-path-params/
-          - samples/server/others/go-server/optional-body/
    steps:
      - uses: actions/checkout@v5
      - uses: actions/setup-go@v6
@@ -59,4 +58,4 @@ jobs:
          go mod tidy
      - name: Run tests
        working-directory: ${{ matrix.sample }}
-        run: go test ./samples_tests -v
+        run: go test ./samples_tests -v
--- a/.github/workflows/samples-java-client-jdk11.yaml
+++ b/.github/workflows/samples-java-client-jdk11.yaml
@@ -5,7 +5,6 @@ on:
    paths:
      - 'samples/client/petstore/java/**'
      - samples/client/petstore/jaxrs-cxf-client/**
-      - samples/client/petstore/jaxrs-cxf-client-swagger2/**
      - samples/client/petstore/java-micronaut-client/**
      - samples/openapi3/client/petstore/java/jersey2-java8-special-characters/**
      - samples/openapi3/client/petstore/java/jersey2-java8-swagger1/**
@@ -28,7 +27,6 @@ on:
    paths:
      - 'samples/client/petstore/java/**'
      - samples/client/petstore/jaxrs-cxf-client/**
-      - samples/client/petstore/jaxrs-cxf-client-swagger2/**
      - samples/client/petstore/java-micronaut-client/**
      - samples/openapi3/client/petstore/java/jersey2-java8-special-characters/**
      - samples/openapi3/client/petstore/java/jersey2-java8-swagger1/**
@@ -56,7 +54,6 @@ jobs:
      matrix:
        sample:
          # clients
-          - samples/client/petstore/jaxrs-cxf-client-swagger2
          - samples/client/petstore/jaxrs-cxf-client
          - samples/client/petstore/java/native
          - samples/client/petstore/java/native-async
--- a/.github/workflows/samples-javascript.yaml
+++ b/.github/workflows/samples-javascript.yaml
@@ -1,51 +0,0 @@
-name: Samples JS clients
-
-on:
-  push:
-    paths:
-      #- samples/client/petstore/javascript-flowtyped/**
-      - samples/client/petstore/javascript-es6/**
-      - samples/client/petstore/javascript-promise-es6/**
-  pull_request:
-    paths:
-      #- samples/client/petstore/javascript-flowtyped/**
-      - samples/client/petstore/javascript-es6/**
-      - samples/client/petstore/javascript-promise-es6/**
-jobs:
-  build:
-    name: Build projects
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        node:
-          - "18.x"
-          - "20.x"
-        sample:
-          # clients
-          - samples/client/petstore/javascript-es6/
-          - samples/client/petstore/javascript-promise-es6/
-    services:
-      petstore-api:
-        image: swaggerapi/petstore
-        ports:
-          - 80:8080
-        env:
-          SWAGGER_HOST: http://petstore.swagger.io
-          SWAGGER_BASE_PATH: /v2
-    steps:
-      - uses: actions/checkout@v5
-      - name: Add hosts to /etc/hosts
-        run: |
-            sudo echo "127.0.0.1 petstore.swagger.io" | sudo tee -a /etc/hosts
-      - name: Use Node.js 20.x
-        uses: actions/setup-node@v5
-        with:
-          node-version: ${{ matrix.node }}
-          cache: 'npm' # Or 'yarn'
-      - name: npm install
-        working-directory: ${{ matrix.sample }}
-        run: npm install
-      - name: npm test
-        working-directory: ${{ matrix.sample }}
-        run: npm test
--- a/.github/workflows/samples-jaxrs.yaml
+++ b/.github/workflows/samples-jaxrs.yaml
@@ -20,7 +20,10 @@ jobs:
          - samples/server/petstore/jaxrs/jersey2-useTags
          - samples/server/petstore/jaxrs-jersey
          - samples/server/petstore/jaxrs-spec
-          - samples/server/petstore/jaxrs-spec-withxml
+          - samples/server/petstore/jaxrs-spec-interface
+          - samples/server/petstore/jaxrs-spec-interface-response
+          - samples/server/petstore/jaxrs-jersey
+          - samples/server/petstore/jaxrs-spec
          - samples/server/petstore/jaxrs-spec-interface
          - samples/server/petstore/jaxrs-spec-interface-response
          - samples/server/petstore/jaxrs-datelib-j8
--- a/.github/workflows/samples-kotlin-server-jdk17.yaml
+++ b/.github/workflows/samples-kotlin-server-jdk17.yaml
@@ -34,7 +34,6 @@ jobs:
          # server
          - samples/server/petstore/kotlin-server-required-and-nullable-properties
          - samples/server/petstore/kotlin-springboot-3
-          - samples/server/petstore/kotlin-springboot-additionalproperties
          - samples/server/petstore/kotlin-springboot-delegate-nodefaults
          - samples/server/petstore/kotlin-springboot-request-cookie
          - samples/server/petstore/kotlin-server/jaxrs-spec
@@ -68,4 +67,4 @@ jobs:
          arguments: wrapper
      - name: Build
        working-directory: ${{ matrix.sample }}
-        run: ./gradlew build -x test
+        run: ./gradlew build -x test
--- a/.github/workflows/samples-kotlin-server.yaml
+++ b/.github/workflows/samples-kotlin-server.yaml
@@ -76,4 +76,4 @@ jobs:
          arguments: wrapper
      - name: Build
        working-directory: ${{ matrix.sample }}
-        run: ./gradlew build -x test
+        run: ./gradlew build -x test
--- a/.github/workflows/samples-python-petstore.yaml
+++ b/.github/workflows/samples-python-petstore.yaml
@@ -34,7 +34,6 @@ jobs:
          - "3.13"
        sample:
          - samples/openapi3/client/petstore/python-aiohttp
-          - samples/openapi3/client/petstore/python-httpx
          - samples/openapi3/client/petstore/python
          - samples/openapi3/client/petstore/python-lazyImports
    services:
--- a/.github/workflows/samples-ruby-client-echo-api.yaml
+++ b/.github/workflows/samples-ruby-client-echo-api.yaml
@@ -0,0 +1,43 @@
+name: Samples Ruby 
+
+on:
+  push:
+    paths:
+      - 'samples/client/echo_api/ruby-httpx/**'
+      - 'samples/client/echo_api/ruby-faraday/**'
+      - 'samples/client/echo_api/ruby-typhoeus/**'
+  pull_request:
+    paths:
+      - 'samples/client/echo_api/ruby-httpx/**'
+      - 'samples/client/echo_api/ruby-faraday/**'
+      - 'samples/client/echo_api/ruby-typhoeus/**'
+
+jobs:
+  build:
+    name: Build Ruby
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sample:
+          - 'samples/client/echo_api/ruby-httpx/'
+          - 'samples/client/echo_api/ruby-faraday/'
+          - 'samples/client/echo_api/ruby-typhoeus/'
+    steps:
+      - uses: actions/checkout@v5
+      - name: Setup node.js
+        uses: actions/setup-node@v5
+      - name: Run echo server
+        run: |
+          git clone https://github.com/wing328/http-echo-server -b openapi-generator-test-server
+          (cd http-echo-server && npm install && npm start &)
+      - uses: actions/setup-ruby@v1
+        with:
+          ruby-version: 3.2
+          bundler-cache: true
+      - name: Install bundle
+        working-directory: ${{ matrix.sample }}
+        run: bundle install
+      - name: Run rspec
+        working-directory: ${{ matrix.sample }}
+        run: rspec
--- a/.github/workflows/samples-ruby.yaml
+++ b/.github/workflows/samples-ruby.yaml
@@ -1,16 +1,18 @@
-name: Samples Ruby 
+name: Samples Ruby

 on:
  push:
    paths:
-      - 'samples/client/echo_api/ruby-httpx/**'
-      - 'samples/client/echo_api/ruby-faraday/**'
-      - 'samples/client/echo_api/ruby-typhoeus/**'
+      - samples/client/petstore/ruby/**
+      - samples/client/petstore/ruby-faraday/**
+      - samples/client/petstore/ruby-httpx/**
+      - samples/client/petstore/ruby-autoload/**
  pull_request:
    paths:
-      - 'samples/client/echo_api/ruby-httpx/**'
-      - 'samples/client/echo_api/ruby-faraday/**'
-      - 'samples/client/echo_api/ruby-typhoeus/**'
+      - samples/client/petstore/ruby/**
+      - samples/client/petstore/ruby-faraday/**
+      - samples/client/petstore/ruby-httpx/**
+      - samples/client/petstore/ruby-autoload/**

 jobs:
  build:
@@ -20,21 +22,28 @@ jobs:
      fail-fast: false
      matrix:
        sample:
-          - 'samples/client/echo_api/ruby-httpx/'
-          - 'samples/client/echo_api/ruby-faraday/'
-          - 'samples/client/echo_api/ruby-typhoeus/'
+          - samples/client/petstore/ruby/
+          #- samples/client/petstore/ruby-faraday/
+          #- samples/client/petstore/ruby-httpx/
+          #- samples/client/petstore/ruby-autoload/
+    services:
+      petstore-api:
+        image: swaggerapi/petstore
+        ports:
+          - 80:8080
+        env:
+          SWAGGER_HOST: http://petstore.swagger.io
+          SWAGGER_BASE_PATH: /v2
    steps:
      - uses: actions/checkout@v5
-      - name: Setup node.js
-        uses: actions/setup-node@v5
-      - name: Run echo server
-        run: |
-          git clone https://github.com/wing328/http-echo-server -b openapi-generator-test-server
-          (cd http-echo-server && npm install && npm start &)
-      - uses: actions/setup-ruby@v1
+      #- name: Add hosts to /etc/hosts
+      #  run: |
+      #      sudo echo "127.0.0.1 petstore.swagger.io" | sudo tee -a /etc/hosts
+      #      cat /etc/hosts
+      - uses: ruby/setup-ruby@v1
        with:
-          ruby-version: 3.0
-          bundler-cache: true
+          ruby-version: '3.4' # Not needed with a .ruby-version, .tool-versions or mise.toml
+          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
      - name: Install bundle
        working-directory: ${{ matrix.sample }}
        run: bundle install
--- a/.github/workflows/samples-typescript-client.yaml
+++ b/.github/workflows/samples-typescript-client.yaml
@@ -1,142 +0,0 @@
-name: Samples TS clients
-
-on:
-  push:
-    paths:
-      - samples/client/others/typescript-angular/**
-      # comment out angular released before Nov 2023
-      #- samples/client/petstore/typescript-angular-v12-provided-in-root/**
-      #- samples/client/petstore/typescript-angular-v13-provided-in-root/**
-      #- samples/client/petstore/typescript-angular-v14-provided-in-root/**
-      #- samples/client/petstore/typescript-angular-v15-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v16-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v17-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v18-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v19-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v20-provided-in-root/**
-      - samples/openapi3/client/petstore/typescript/builds/default/**
-      # comment out due to build failure
-      #- samples/openapi3/client/petstore/typescript/tests/default/**
-      - samples/openapi3/client/petstore/typescript/builds/jquery/**
-      # comment out due to build failure
-      #- samples/openapi3/client/petstore/typescript/tests/jquery/**
-      - samples/openapi3/client/petstore/typescript/builds/object_params/**
-      # comment out due to build failure
-      #- samples/openapi3/client/petstore/typescript/tests/object_params/**
-      #- samples/openapi3/client/petstore/typescript/builds/inversify/**
-      #- samples/openapi3/client/petstore/typescript/tests/inversify/**
-      #- samples/openapi3/client/petstore/typescript/tests/deno/**
-      - samples/openapi3/client/petstore/typescript/builds/browser/**
-      # comment out due to build failure
-      #- samples/openapi3/client/petstore/typescript/tests/browser/**
-      #- samples/openapi3/client/petstore/typescript/builds/nullable-enum/**
-      - samples/client/petstore/typescript-fetch/builds/default/**
-      - samples/client/petstore/typescript-fetch/builds/es6-target/**
-      - samples/client/petstore/typescript-fetch/builds/with-npm-version/**
-      - samples/client/petstore/typescript-fetch/tests/default/**
-      # comment out due to build failure
-      #- samples/client/petstore/typescript-node/npm/**
-      - samples/client/petstore/typescript-rxjs/builds/with-npm-version/**
-      - samples/client/petstore/typescript-axios/builds/with-npm-version/**
-      # comment out due to build failure
-      #- samples/client/petstore/typescript-axios/tests/default/**
-  pull_request:
-    paths:
-      - samples/client/others/typescript-angular/**
-      #- samples/client/petstore/typescript-angular-v12-provided-in-root/**
-      #- samples/client/petstore/typescript-angular-v13-provided-in-root/**
-      #- samples/client/petstore/typescript-angular-v14-provided-in-root/**
-      #- samples/client/petstore/typescript-angular-v15-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v16-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v17-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v18-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v19-provided-in-root/**
-      - samples/client/petstore/typescript-angular-v20-provided-in-root/**
-      - samples/openapi3/client/petstore/typescript/builds/default/**
-      #- samples/openapi3/client/petstore/typescript/tests/default/**
-      - samples/openapi3/client/petstore/typescript/builds/jquery/**
-      #- samples/openapi3/client/petstore/typescript/tests/jquery/**
-      - samples/openapi3/client/petstore/typescript/builds/object_params/**
-      #- samples/openapi3/client/petstore/typescript/tests/object_params/**
-      #- samples/openapi3/client/petstore/typescript/builds/inversify/**
-      #- samples/openapi3/client/petstore/typescript/tests/inversify/**
-      #- samples/openapi3/client/petstore/typescript/tests/deno/**
-      - samples/openapi3/client/petstore/typescript/builds/browser/**
-      #- samples/openapi3/client/petstore/typescript/tests/browser/**
-      #- samples/openapi3/client/petstore/typescript/builds/nullable-enum/**
-      - samples/client/petstore/typescript-fetch/builds/default/**
-      - samples/client/petstore/typescript-fetch/builds/es6-target/**
-      - samples/client/petstore/typescript-fetch/builds/with-npm-version/**
-      - samples/client/petstore/typescript-fetch/tests/default/**
-      #- samples/client/petstore/typescript-node/npm/**
-      - samples/client/petstore/typescript-rxjs/builds/with-npm-version/**
-      - samples/client/petstore/typescript-axios/builds/with-npm-version/**
-      #- samples/client/petstore/typescript-axios/tests/default/**
-jobs:
-  build:
-    name: Build projects
-    runs-on: ubuntu-latest
-    services:
-      petstore-api:
-        image: swaggerapi/petstore
-        ports:
-          - 80:8080
-        env:
-          SWAGGER_HOST: http://petstore.swagger.io
-          SWAGGER_BASE_PATH: /v2
-    strategy:
-      fail-fast: false
-      matrix:
-        node:
-          #- "18.x"
-          - "20.x"
-        sample:
-          - samples/client/others/typescript-angular/
-          #- samples/client/petstore/typescript-angular-v12-provided-in-root/
-          #- samples/client/petstore/typescript-angular-v13-provided-in-root/
-          #- samples/client/petstore/typescript-angular-v14-provided-in-root/
-          #- samples/client/petstore/typescript-angular-v15-provided-in-root/
-          - samples/client/petstore/typescript-angular-v16-provided-in-root/
-          - samples/client/petstore/typescript-angular-v17-provided-in-root/
-          - samples/client/petstore/typescript-angular-v18-provided-in-root/
-          - samples/client/petstore/typescript-angular-v19-provided-in-root/
-          - samples/client/petstore/typescript-angular-v20-provided-in-root/
-          - samples/openapi3/client/petstore/typescript/builds/default/
-          #- samples/openapi3/client/petstore/typescript/tests/default/
-          - samples/openapi3/client/petstore/typescript/builds/jquery/
-          #- samples/openapi3/client/petstore/typescript/tests/jquery/
-          - samples/openapi3/client/petstore/typescript/builds/object_params/
-          #- samples/openapi3/client/petstore/typescript/tests/object_params/
-          #- samples/openapi3/client/petstore/typescript/builds/inversify/
-          #- samples/openapi3/client/petstore/typescript/tests/inversify/
-          #- samples/openapi3/client/petstore/typescript/tests/deno/
-          - samples/openapi3/client/petstore/typescript/builds/browser/
-          #- samples/openapi3/client/petstore/typescript/tests/browser/
-          #- samples/openapi3/client/petstore/typescript/builds/nullable-enum/
-          - samples/client/petstore/typescript-fetch/builds/default/
-          - samples/client/petstore/typescript-fetch/builds/es6-target/
-          - samples/client/petstore/typescript-fetch/builds/with-npm-version/
-          - samples/client/petstore/typescript-fetch/tests/default/
-          #- samples/client/petstore/typescript-node/npm/
-          - samples/client/petstore/typescript-rxjs/builds/with-npm-version/
-          - samples/client/petstore/typescript-axios/builds/with-npm-version/
-          #- samples/client/petstore/typescript-axios/tests/default/
-    steps:
-      - uses: actions/checkout@v5
-      - name: Add hosts to /etc/hosts
-        run: |
-            sudo echo "127.0.0.1 petstore.swagger.io" | sudo tee -a /etc/hosts
-      - name: Set up JDK 17
-        uses: actions/setup-java@v5
-        with:
-          java-version: '17' # Specify your desired Java version
-          distribution: 'temurin' # Or 'adopt', 'oracle', etc.
-          cache: maven # Cache Maven dependencies for faster builds
-      - name: Use Node.js
-        uses: actions/setup-node@v5
-        with:
-          node-version: ${{ matrix.node }}
-          cache: 'npm' # Or 'yarn'
-      - name: mvn integration-test
-        working-directory: ${{ matrix.sample }}
-        run: mvn integration-test
--- a/.github/workflows/samples-typescript-server.yaml
+++ b/.github/workflows/samples-typescript-server.yaml
@@ -1,34 +0,0 @@
-name: Samples TS servers
-
-on:
-  push:
-    paths:
-      - samples/server/petstore/typescript-nestjs-server/**
-  pull_request:
-    paths:
-      - samples/server/petstore/typescript-nestjs-server/**
-jobs:
-  build:
-    name: Build projects
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        node:
-          - "18.x"
-          - "20.x"
-        sample:
-          - samples/server/petstore/typescript-nestjs-server/
-    steps:
-      - uses: actions/checkout@v5
-      - name: Use Node.js 20.x
-        uses: actions/setup-node@v5
-        with:
-          node-version: ${{ matrix.node }}
-          cache: 'npm' # Or 'yarn'
-      - name: npm install
-        working-directory: ${{ matrix.sample }}
-        run: npm install
-      - name: npm test
-        working-directory: ${{ matrix.sample }}
-        run: npm test
--- a/.github/workflows/windows.yaml
+++ b/.github/workflows/windows.yaml
@@ -39,7 +39,7 @@ jobs:
            ${{ runner.os }}-build-${{ env.cache-name }}-
            ${{ runner.os }}-build-
      - name: Setup Maven
-        uses: s4u/setup-maven-action@v1.19.0
+        uses: s4u/setup-maven-action@v1.18.0
        with:
          java-version: ${{ matrix.java }}
          maven-version: 3.8.8
--- a/.gitignore
+++ b/.gitignore
@@ -49,8 +49,6 @@ nb-configuration.xml
 *.xml~
 *.t~

-**/.angular
-
 /target
 /generated-files
 test-output/
--- a/CI/circle_parallel.sh
+++ b/CI/circle_parallel.sh
@@ -62,51 +62,55 @@ elif [ "$NODE_INDEX" = "3" ]; then

  echo "Running node $NODE_INDEX ... "

-  ## Install node@stable (for angular 6)
-  #set +e
-  #curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
-  #export NVM_DIR="/opt/circleci/.nvm"
-  #[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
-  ##nvm install stable
-  ## install v16 instead of the latest stable version
-  #nvm install 18
-  #nvm alias default 18
-  #node --version
+  # Install node@stable (for angular 6)
+  set +e
+  curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
+  export NVM_DIR="/opt/circleci/.nvm"
+  [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
+  #nvm install stable
+  # install v16 instead of the latest stable version
+  nvm install 18
+  nvm alias default 18
+  node --version

-  ## Each step uses the same `$BASH_ENV`, so need to modify it
-  #echo 'export NVM_DIR="/opt/circleci/.nvm"' >> $BASH_ENV
-  #echo "[ -s \"$NVM_DIR/nvm.sh\" ] && . \"$NVM_DIR/nvm.sh\"" >> $BASH_ENV
+  # Each step uses the same `$BASH_ENV`, so need to modify it
+  echo 'export NVM_DIR="/opt/circleci/.nvm"' >> $BASH_ENV
+  echo "[ -s \"$NVM_DIR/nvm.sh\" ] && . \"$NVM_DIR/nvm.sh\"" >> $BASH_ENV

-  #(cd samples/client/others/typescript-angular && mvn integration-test)
-  #(cd samples/client/petstore/typescript-angular-v12-provided-in-root && mvn integration-test)
-  #(cd samples/client/petstore/typescript-angular-v13-provided-in-root && mvn integration-test)
-  #(cd samples/client/petstore/typescript-angular-v14-provided-in-root && mvn integration-test)
-  #(cd samples/client/petstore/typescript-angular-v15-provided-in-root && mvn integration-test)
-  #(cd samples/client/petstore/typescript-angular-v16-provided-in-root && mvn integration-test)
-  #(cd samples/client/petstore/typescript-angular-v17-provided-in-root && mvn integration-test)
-  #(cd samples/client/petstore/typescript-angular-v18-provided-in-root && mvn integration-test)
-  #(cd samples/client/petstore/typescript-angular-v19-provided-in-root && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/builds/default && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/tests/default && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/builds/jquery && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/tests/jquery && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/builds/object_params && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/tests/object_params && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/builds/inversify && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/tests/inversify && mvn integration-test)
-  ##(cd samples/openapi3/client/petstore/typescript/tests/deno && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/builds/browser && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/tests/browser && mvn integration-test)
-  #(cd samples/openapi3/client/petstore/typescript/builds/nullable-enum && mvn integration-test)
-  #(cd samples/client/petstore/typescript-fetch/builds/default && mvn integration-test)
-  #(cd samples/client/petstore/typescript-fetch/builds/es6-target && mvn integration-test)
-  #(cd samples/client/petstore/typescript-fetch/builds/with-npm-version && mvn integration-test)
-  #(cd samples/client/petstore/typescript-fetch/tests/default && mvn integration-test)
-  #(cd samples/client/petstore/typescript-node/npm && mvn integration-test)
-  #(cd samples/client/petstore/typescript-rxjs/builds/with-npm-version && mvn integration-test)
-  #(cd samples/client/petstore/typescript-axios/builds/with-npm-version && mvn integration-test)
-  #(cd samples/client/petstore/typescript-axios/tests/default && mvn integration-test)
-  #(cd samples/client/petstore/typescript-axios/tests/with-complex-headers && mvn integration-test)
+  (cd samples/client/others/typescript-angular && mvn integration-test)
+  (cd samples/client/petstore/typescript-angular-v12-provided-in-root && mvn integration-test)
+  (cd samples/client/petstore/typescript-angular-v13-provided-in-root && mvn integration-test)
+  (cd samples/client/petstore/typescript-angular-v14-provided-in-root && mvn integration-test)
+  (cd samples/client/petstore/typescript-angular-v15-provided-in-root && mvn integration-test)
+  (cd samples/client/petstore/typescript-angular-v16-provided-in-root && mvn integration-test)
+  (cd samples/client/petstore/typescript-angular-v17-provided-in-root && mvn integration-test)
+  (cd samples/client/petstore/typescript-angular-v18-provided-in-root && mvn integration-test)
+  (cd samples/client/petstore/typescript-angular-v19-provided-in-root && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/builds/default && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/tests/default && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/builds/jquery && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/tests/jquery && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/builds/object_params && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/tests/object_params && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/builds/inversify && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/tests/inversify && mvn integration-test)
+  #(cd samples/openapi3/client/petstore/typescript/tests/deno && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/builds/browser && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/tests/browser && mvn integration-test)
+  (cd samples/openapi3/client/petstore/typescript/builds/nullable-enum && mvn integration-test)
+  (cd samples/client/petstore/typescript-fetch/builds/default && mvn integration-test)
+  (cd samples/client/petstore/typescript-fetch/builds/es6-target && mvn integration-test)
+  (cd samples/client/petstore/typescript-fetch/builds/with-npm-version && mvn integration-test)
+  (cd samples/client/petstore/typescript-fetch/tests/default && mvn integration-test)
+  (cd samples/client/petstore/typescript-node/npm && mvn integration-test)
+  (cd samples/client/petstore/typescript-rxjs/builds/with-npm-version && mvn integration-test)
+  (cd samples/client/petstore/typescript-axios/builds/with-npm-version && mvn integration-test)
+  (cd samples/client/petstore/typescript-axios/tests/default && mvn integration-test)
+  (cd samples/client/petstore/typescript-axios/tests/with-complex-headers && mvn integration-test)
+  (cd samples/client/petstore/javascript-flowtyped && mvn integration-test)
+  (cd samples/client/petstore/javascript-es6 && mvn integration-test)
+  (cd samples/client/petstore/javascript-promise-es6 && mvn integration-test)
+  (cd samples/server/petstore/typescript-nestjs-server && mvn integration-test)

 else
  echo "Running node $NODE_INDEX ..."
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@

 <div align="center">

-[Master](https://github.com/OpenAPITools/openapi-generator/tree/master) (`7.17.0`):
+[Master](https://github.com/OpenAPITools/openapi-generator/tree/master) (`7.16.0`):
 [![Integration Test2](https://circleci.com/gh/OpenAPITools/openapi-generator.svg?style=shield)](https://circleci.com/gh/OpenAPITools/openapi-generator)
 [![Bitrise](https://img.shields.io/bitrise/4a2b10a819d12b67/master?label=bitrise%3A%20Swift+4,5&token=859FMDR8QHwabCzwvZK6vQ)](https://app.bitrise.io/app/4a2b10a819d12b67)

@@ -148,8 +148,8 @@ The OpenAPI Specification has undergone 3 revisions since initial creation in 20

 | OpenAPI Generator Version                                                                                                                                 | Release Date | Notes                                             |
 | --------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | ------------------------------------------------- |
-| 7.17.0 (upcoming minor release) [SNAPSHOT](https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-to-test-with-the-latest-master-of-openapi-generator) | 24.10.2025   | Minor release with breaking changes (with fallback) |
-| [7.16.0](https://github.com/OpenAPITools/openapi-generator/releases/tag/v7.16.0) (latest stable release)                                                    | 28.09.2025   | Minor release with breaking changes (with fallback) |
+| 7.16.0 (upcoming minor release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/org/openapitools/openapi-generator-cli/7.16.0-SNAPSHOT/) | 22.09.2025   | Minor release with breaking changes (with fallback) |
+| [7.15.0](https://github.com/OpenAPITools/openapi-generator/releases/tag/v7.15.0) (latest stable release)                                                    | 22.08.2025   | Minor release with breaking changes (with fallback) |
 | [6.6.0](https://github.com/OpenAPITools/openapi-generator/releases/tag/v6.6.0)                                                    | 11.05.2023   | Minor release with breaking changes (with fallback) |
 | [5.4.0](https://github.com/OpenAPITools/openapi-generator/releases/tag/v5.4.0)                                                    | 31.01.2022   | Minor release with breaking changes (with fallback) |
 | [4.3.1](https://github.com/OpenAPITools/openapi-generator/releases/tag/v4.3.1)                                                    | 06.05.2020   | Patch release (enhancements, bug fixes, etc)                       |
@@ -212,16 +212,16 @@ See the different versions of the [openapi-generator-cli](https://search.maven.o
 <!-- RELEASE_VERSION -->
 If you're looking for the latest stable version, you can grab it directly from Maven.org (Java 11 runtime at a minimum):

-JAR location: `https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.16.0/openapi-generator-cli-7.16.0.jar`
+JAR location: `https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.15.0/openapi-generator-cli-7.15.0.jar`

 For **Mac/Linux** users:
 ```sh
-wget https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.16.0/openapi-generator-cli-7.16.0.jar -O openapi-generator-cli.jar
+wget https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.15.0/openapi-generator-cli-7.15.0.jar -O openapi-generator-cli.jar
 ```

 For **Windows** users, you will need to install [wget](http://gnuwin32.sourceforge.net/packages/wget.htm) or you can use Invoke-WebRequest in PowerShell (3.0+), e.g.
 ```
-Invoke-WebRequest -OutFile openapi-generator-cli.jar https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.16.0/openapi-generator-cli-7.16.0.jar
+Invoke-WebRequest -OutFile openapi-generator-cli.jar https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.15.0/openapi-generator-cli-7.15.0.jar
 ```

 After downloading the JAR, run `java -jar openapi-generator-cli.jar help` to show the usage.
@@ -456,7 +456,7 @@ openapi-generator-cli version
 To use a specific version of "openapi-generator-cli"

 ```sh
-openapi-generator-cli version-manager set 7.16.0
+openapi-generator-cli version-manager set 7.15.0
 ```

 Or install it as dev-dependency:
@@ -480,7 +480,7 @@ pip install openapi-generator-cli

 To install a specific version
 ```
-pip install openapi-generator-cli==7.16.0
+pip install openapi-generator-cli==7.15.0
 ```

 You can also install with [jdk4py](https://github.com/activeviam/jdk4py) instead of java binary. (python>=3.10 is required)
@@ -506,7 +506,7 @@ java -jar modules/openapi-generator-cli/target/openapi-generator-cli.jar generat
 (if you're on Windows, replace the last command with `java -jar modules\openapi-generator-cli\target\openapi-generator-cli.jar generate -i https://raw.githubusercontent.com/openapitools/openapi-generator/master/modules/openapi-generator/src/test/resources/3_0/petstore.yaml -g php -o c:\temp\php_api_client`)

 <!-- RELEASE_VERSION -->
-You can also download the JAR (latest release) directly from [maven.org](https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.16.0/openapi-generator-cli-7.16.0.jar)
+You can also download the JAR (latest release) directly from [maven.org](https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.15.0/openapi-generator-cli-7.15.0.jar)
 <!-- /RELEASE_VERSION -->

 To get a list of **general** options available, please run `java -jar modules/openapi-generator-cli/target/openapi-generator-cli.jar help generate`
--- a/bin/configs/go-server-optional-body.yaml
+++ b/bin/configs/go-server-optional-body.yaml
@@ -1,8 +0,0 @@
-generatorName: go-server
-outputDir: samples/server/others/go-server/optional-body
-inputSpec: modules/openapi-generator/src/test/resources/3_0/optional_body.yaml
-templateDir: modules/openapi-generator/src/main/resources/go-server
-additionalProperties:
-  hideGenerationTimestamp: "true"
-  packageName: petstoreserver
-  addResponseHeaders: true
--- a/bin/configs/jaxrs-cxf-client-swagger2.yaml
+++ b/bin/configs/jaxrs-cxf-client-swagger2.yaml
@@ -1,8 +0,0 @@
-generatorName: jaxrs-cxf-client
-outputDir: samples/client/petstore/jaxrs-cxf-client-swagger2
-inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
-templateDir: modules/openapi-generator/src/main/resources/JavaJaxRS/cxf
-additionalProperties:
-  artifactId: jaxrs-cxf-petstore-swagger2
-  documentationProvider: swagger2
-  annotationLibrary: swagger2
--- a/bin/configs/jaxrs-spec-withxml.yaml
+++ b/bin/configs/jaxrs-spec-withxml.yaml
@@ -1,10 +0,0 @@
-generatorName: jaxrs-spec
-outputDir: samples/server/petstore/jaxrs-spec-withxml/
-inputSpec: modules/openapi-generator/src/test/resources/3_0/jaxrs-spec/petstore-with-fake-endpoints-models-for-testing.yaml
-templateDir: modules/openapi-generator/src/main/resources/JavaJaxRS/spec
-additionalProperties:
-  artifactId: jaxrs-spec-withxml-petstore-server
-  serializableModel: "true"
-  hideGenerationTimestamp: "true"
-  generateBuilders: "true"
-  withXml: true
--- a/bin/configs/kotlin-spring-boot-additionalproperties.yaml
+++ b/bin/configs/kotlin-spring-boot-additionalproperties.yaml
@@ -1,14 +0,0 @@
-generatorName: kotlin-spring
-outputDir: samples/server/petstore/kotlin-springboot-additionalproperties
-library: spring-boot
-inputSpec: samples/server/petstore/kotlin-springboot-additionalproperties/src/main/resources/openapi.yaml
-templateDir: modules/openapi-generator/src/main/resources/kotlin-spring
-additionalProperties:
-  documentationProvider: none
-  annotationLibrary: none
-  useSwaggerUI: "false"
-  serviceImplementation: "true"
-  serializableModel: "true"
-  beanValidations: "true"
-  useSpringBoot3: "true"
-  requestMappingMode: api_interface
--- a/bin/configs/python-httpx.yaml
+++ b/bin/configs/python-httpx.yaml
@@ -1,15 +0,0 @@
-generatorName: python
-outputDir: samples/openapi3/client/petstore/python-httpx
-inputSpec: modules/openapi-generator/src/test/resources/3_0/python/petstore-with-fake-endpoints-models-for-testing.yaml
-templateDir: modules/openapi-generator/src/main/resources/python
-library: httpx
-additionalProperties:
-  packageName: petstore_api
-  mapNumberTo: float
-  poetry1: true
-nameMappings:
-  _type: underscore_type
-  type_: type_with_underscore
-modelNameMappings:
-  # The OpenAPI spec ApiResponse conflicts with the internal ApiResponse
-  ApiResponse: ModelApiResponse
--- a/bin/configs/typescript-angular-v19-provided-in-root.yaml
+++ b/bin/configs/typescript-angular-v19-provided-in-root.yaml
@@ -1,9 +0,0 @@
-generatorName: typescript-angular
-outputDir: samples/client/petstore/typescript-angular-v19-provided-in-root/builds/default
-inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
-templateDir: modules/openapi-generator/src/main/resources/typescript-angular
-additionalProperties:
-  ngVersion: 19.0.0
-  supportsES6: true
-enumNameMappings:
-  delivered: SHIPPED
--- a/bin/configs/typescript-angular-v20-provided-in-root.yaml
+++ b/bin/configs/typescript-angular-v20-provided-in-root.yaml
@@ -1,9 +0,0 @@
-generatorName: typescript-angular
-outputDir: samples/client/petstore/typescript-angular-v20-provided-in-root/builds/default
-inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
-templateDir: modules/openapi-generator/src/main/resources/typescript-angular
-additionalProperties:
-  ngVersion: 20.0.0
-  supportsES6: true
-enumNameMappings:
-  delivered: SHIPPED
--- a/bin/configs/typescript-fetch-infinite-recursion-issue.yaml
+++ b/bin/configs/typescript-fetch-infinite-recursion-issue.yaml
@@ -1,7 +0,0 @@
-generatorName: typescript-fetch
-outputDir: samples/client/others/typescript-fetch/infinite-recursion-issue
-inputSpec: modules/openapi-generator/src/test/resources/3_0/typescript-fetch/infinite-recursion-issue.yaml
-templateDir: modules/openapi-generator/src/main/resources/typescript-fetch
-additionalProperties:
-  enumPropertyNaming: "original"
-  enumUnknownDefaultCase: true
--- a/bin/utils/dart-keywords/README.md
+++ b/bin/utils/dart-keywords/README.md
@@ -5,11 +5,11 @@ Running `./save_dart_keywords.sh` from this directory will generate `dart-keywor

 ## When should the keywords be generated?

-`save_dart_keywords.sh` should be run when a new version of Dart is released to update the keywords file.
+`save_dart_keywords.sh` should be run when a new version of Dart is release to update the keywords file.

 The last Dart version that was used to generate the keywords can be found in `dart-version.txt`.

-## What does the shell script do? 
+## What does the shellscript do? 

 1. run the dart app 
    - `dart run save-dart-keywords.dart`
--- a/bin/utils/test_file_list.yaml
+++ b/bin/utils/test_file_list.yaml
@@ -61,4 +61,4 @@
 - filename: "samples/server/petstore/rust-axum/output/rust-axum-oneof/tests/oneof_with_discriminator.rs"
  sha256: 2d4f5a069fdcb3057bb078d5e75b3de63cd477b97725e457079df24bd2c30600
 - filename: "samples/server/petstore/rust-axum/output/openapi-v3/tests/oneof_untagged.rs"
-  sha256: 1d3fb01f65e98290b1d3eece28014c7d3e3f2fdf18e7110249d3c591cc4642ab
+  sha256: e72fbf81a9849dc7abb7e2169f2fc355c8b1cf991c0e2ffc083126abd9e966e7
--- a/docs/debugging.md
+++ b/docs/debugging.md
@@ -5,7 +5,7 @@ title: Debugging

 ## Generation

-As a user there may be times when generated outputs don't match your expectations and it's unclear why. The CLI supports a `--dry-run` option which may be used to inspect the anticipated file operations without making changes to the file system.
+As a user there may be times when generated outputs don't match your expectations it's unclear why. The CLI supports a `--dry-run` option which may be used to inspect the anticipated file operations without making changes to the file system.

 Suppose you generate using the `--minimal-update` option, and you notice on subsequent generations of a client that no files have changed. This is by design.

--- a/docs/generators/java-camel.md
+++ b/docs/generators/java-camel.md
@@ -95,7 +95,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |sortModelPropertiesByRequiredFlag|Sort model properties to place required parameters before optional parameters.| |true|
 |sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |true|
 |sourceFolder|source folder for generated code| |src/main/java|
-|springApiVersion|Value for 'version' attribute in @RequestMapping (for Spring 7 and above).| |null|
 |testOutput|Set output folder for models and APIs tests| |${project.build.directory}/generated-test-sources/openapi|
 |title|server title name or client service name| |OpenAPI Spring|
 |unhandledException|Declare operation methods to throw a generic exception and allow unhandled exceptions (useful for Spring `@ControllerAdvice` directives).| |false|
@@ -133,7 +132,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |x-spring-paginated|Add `org.springframework.data.domain.Pageable` to controller method. Can be used to handle `page`, `size` and `sort` query parameters. If these query parameters are also specified in the operation spec, they will be removed from the controller method as their values can be obtained from the `Pageable` object.|OPERATION|false
 |x-version-param|Marker property that tells that this parameter would be used for endpoint versioning. Applicable for headers & query params. true/false|OPERATION_PARAMETER|null
 |x-pattern-message|Add this property whenever you need to customize the invalidation error message for the regex pattern of a variable|FIELD, OPERATION_PARAMETER|null
-|x-spring-api-version|Value for 'version' attribute in @RequestMapping (for Spring 7 and above).|OPERATION|null


 ## IMPORT MAPPING
--- a/docs/generators/postman.md
+++ b/docs/generators/postman.md
@@ -0,0 +1,167 @@
+---
+title: Documentation for the postman Generator
+---
+
+## METADATA
+
+| Property | Value | Notes |
+| -------- | ----- | ----- |
+| generator name | postman | pass this to the generate command after -g |
+| generator stability | BETA | |
+| generator type | DOCUMENTATION | |
+| generator default templating engine | mustache | |
+| helpTxt | Generates a postman JSON file | |
+
+## CONFIG OPTIONS
+These options may be applied as additional-properties (cli) or configOptions (plugins). Refer to [configuration docs](https://openapi-generator.tech/docs/configuration) for more details.
+
+| Option | Description | Values | Default |
+| ------ | ----------- | ------ | ------- |
+|folderStrategy|whether to create folders according to the spec&rsquo;s paths or tags| |null|
+|pathParamsAsVariables|whether to create Postman variables for path parameters| |false|
+|postmanGuid|whether to convert placeholders (i.e. {{UNIQUE_REFERENCE}}) into Postman formula {{$guid}}| |null|
+|postmanGuidPlaceholderName|name of the placeholder (i.e. {{UNIQUE_REFERENCE}}) to replace with Postman formula {{$guid}}| |null|
+|postmanIsoTimestamp|whether to convert placeholders (i.e. {{ISO_TIMESTAMP}}) into Postman formula {{$isoTimestamp}}| |null|
+|postmanIsoTimestampPlaceholderName|name of the placeholder (i.e. {{ISO_TIMESTAMP}}) to replace with Postman formula {{$isoTimestamp}}| |null|
+|postmanVariables|whether to convert placeholders (i.e. {{VAR_1}}) into Postman variables| |null|
+|requestParameterGeneration|whether to generate the request parameters based on the schema or the examples| |null|
+
+## IMPORT MAPPING
+
+| Type/Alias | Imports |
+| ---------- | ------- |
+
+
+## INSTANTIATION TYPES
+
+| Type/Alias | Instantiated By |
+| ---------- | --------------- |
+
+
+## LANGUAGE PRIMITIVES
+
+<ul class="column-ul">
+</ul>
+
+## RESERVED WORDS
+
+<ul class="column-ul">
+</ul>
+
+## FEATURE SET
+
+
+### Client Modification Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|BasePath|✗|ToolingExtension
+|Authorizations|✗|ToolingExtension
+|UserAgent|✗|ToolingExtension
+|MockServer|✗|ToolingExtension
+
+### Data Type Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Custom|✗|OAS2,OAS3
+|Int32|✓|OAS2,OAS3
+|Int64|✓|OAS2,OAS3
+|Float|✓|OAS2,OAS3
+|Double|✓|OAS2,OAS3
+|Decimal|✓|ToolingExtension
+|String|✓|OAS2,OAS3
+|Byte|✓|OAS2,OAS3
+|Binary|✓|OAS2,OAS3
+|Boolean|✓|OAS2,OAS3
+|Date|✓|OAS2,OAS3
+|DateTime|✓|OAS2,OAS3
+|Password|✓|OAS2,OAS3
+|File|✓|OAS2
+|Uuid|✗|
+|Array|✓|OAS2,OAS3
+|Null|✗|OAS3
+|AnyType|✗|OAS2,OAS3
+|Object|✓|OAS2,OAS3
+|Maps|✓|ToolingExtension
+|CollectionFormat|✓|OAS2
+|CollectionFormatMulti|✓|OAS2
+|Enum|✓|OAS2,OAS3
+|ArrayOfEnum|✓|ToolingExtension
+|ArrayOfModel|✓|ToolingExtension
+|ArrayOfCollectionOfPrimitives|✓|ToolingExtension
+|ArrayOfCollectionOfModel|✓|ToolingExtension
+|ArrayOfCollectionOfEnum|✓|ToolingExtension
+|MapOfEnum|✓|ToolingExtension
+|MapOfModel|✓|ToolingExtension
+|MapOfCollectionOfPrimitives|✓|ToolingExtension
+|MapOfCollectionOfModel|✓|ToolingExtension
+|MapOfCollectionOfEnum|✓|ToolingExtension
+
+### Documentation Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Readme|✗|ToolingExtension
+|Model|✓|ToolingExtension
+|Api|✓|ToolingExtension
+
+### Global Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Host|✓|OAS2,OAS3
+|BasePath|✓|OAS2,OAS3
+|Info|✓|OAS2,OAS3
+|Schemes|✗|OAS2,OAS3
+|PartialSchemes|✓|OAS2,OAS3
+|Consumes|✓|OAS2
+|Produces|✓|OAS2
+|ExternalDocumentation|✓|OAS2,OAS3
+|Examples|✓|OAS2,OAS3
+|XMLStructureDefinitions|✗|OAS2,OAS3
+|MultiServer|✗|OAS3
+|ParameterizedServer|✗|OAS3
+|ParameterStyling|✗|OAS3
+|Callbacks|✓|OAS3
+|LinkObjects|✗|OAS3
+
+### Parameter Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Path|✓|OAS2,OAS3
+|Query|✓|OAS2,OAS3
+|Header|✓|OAS2,OAS3
+|Body|✓|OAS2
+|FormUnencoded|✓|OAS2
+|FormMultipart|✓|OAS2
+|Cookie|✓|OAS3
+
+### Schema Support Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Simple|✓|OAS2,OAS3
+|Composite|✓|OAS2,OAS3
+|Polymorphism|✓|OAS2,OAS3
+|Union|✗|OAS3
+|allOf|✗|OAS2,OAS3
+|anyOf|✗|OAS3
+|oneOf|✗|OAS3
+|not|✗|OAS3
+
+### Security Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|BasicAuth|✓|OAS2,OAS3
+|ApiKey|✓|OAS2,OAS3
+|OpenIDConnect|✗|OAS3
+|BearerToken|✓|OAS3
+|OAuth2_Implicit|✓|OAS2,OAS3
+|OAuth2_Password|✓|OAS2,OAS3
+|OAuth2_ClientCredentials|✓|OAS2,OAS3
+|OAuth2_AuthorizationCode|✓|OAS2,OAS3
+|SignatureAuth|✗|OAS3
+
+### Wire Format Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|JSON|✓|OAS2,OAS3
+|XML|✓|OAS2,OAS3
+|PROTOBUF|✗|ToolingExtension
+|Custom|✗|OAS2,OAS3
--- a/docs/generators/python.md
+++ b/docs/generators/python.md
@@ -25,7 +25,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |generateSourceCodeOnly|Specifies that only a library source code is to be generated.| |false|
 |hideGenerationTimestamp|Hides the generation timestamp when files are generated.| |true|
 |lazyImports|Enable lazy imports.| |false|
-|library|library template (sub-template) to use: asyncio, tornado (deprecated), urllib3, httpx| |urllib3|
+|library|library template (sub-template) to use: asyncio, tornado (deprecated), urllib3| |urllib3|
 |mapNumberTo|Map number to Union[StrictFloat, StrictInt], StrictStr or float.| |Union[StrictFloat, StrictInt]|
 |packageName|python package name (convention: snake_case).| |openapi_client|
 |packageUrl|python package URL.| |null|
--- a/docs/generators/rust-axum.md
+++ b/docs/generators/rust-axum.md
@@ -77,7 +77,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>dyn</li>
 <li>else</li>
 <li>enum</li>
-<li>errors</li>
 <li>extern</li>
 <li>false</li>
 <li>final</li>
@@ -208,8 +207,8 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |Composite|✓|OAS2,OAS3
 |Polymorphism|✗|OAS2,OAS3
 |Union|✗|OAS3
-|allOf|✓|OAS2,OAS3
-|anyOf|✓|OAS3
+|allOf|✗|OAS2,OAS3
+|anyOf|✗|OAS3
 |oneOf|✓|OAS3
 |not|✗|OAS3

--- a/docs/generators/rust.md
+++ b/docs/generators/rust.md
@@ -27,7 +27,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |packageName|Rust package name (convention: lowercase).| |openapi|
 |packageVersion|Rust package version.| |1.0.0|
 |preferUnsignedInt|Prefer unsigned integers where minimum value is &gt;= 0| |false|
-|reqwestDefaultFeatures|Default features for the reqwest dependency (comma-separated). Use empty for no defaults. This option is for 'reqwest' and 'reqwest-trait' library only.| |native-tls|
 |supportAsync|If set, generate async function call instead. This option is for 'reqwest' library only| |true|
 |supportMiddleware|If set, add support for reqwest-middleware. This option is for 'reqwest' and 'reqwest-trait' library only| |false|
 |supportMultipleResponses|If set, return type wraps an enum of all possible 2xx schemas. This option is for 'reqwest' and 'reqwest-trait' library only| |false|
--- a/docs/generators/spring.md
+++ b/docs/generators/spring.md
@@ -88,7 +88,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |sortModelPropertiesByRequiredFlag|Sort model properties to place required parameters before optional parameters.| |true|
 |sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |true|
 |sourceFolder|source folder for generated code| |src/main/java|
-|springApiVersion|Value for 'version' attribute in @RequestMapping (for Spring 7 and above).| |null|
 |testOutput|Set output folder for models and APIs tests| |${project.build.directory}/generated-test-sources/openapi|
 |title|server title name or client service name| |OpenAPI Spring|
 |unhandledException|Declare operation methods to throw a generic exception and allow unhandled exceptions (useful for Spring `@ControllerAdvice` directives).| |false|
@@ -126,7 +125,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |x-spring-paginated|Add `org.springframework.data.domain.Pageable` to controller method. Can be used to handle `page`, `size` and `sort` query parameters. If these query parameters are also specified in the operation spec, they will be removed from the controller method as their values can be obtained from the `Pageable` object.|OPERATION|false
 |x-version-param|Marker property that tells that this parameter would be used for endpoint versioning. Applicable for headers & query params. true/false|OPERATION_PARAMETER|null
 |x-pattern-message|Add this property whenever you need to customize the invalidation error message for the regex pattern of a variable|FIELD, OPERATION_PARAMETER|null
-|x-spring-api-version|Value for 'version' attribute in @RequestMapping (for Spring 7 and above).|OPERATION|null


 ## IMPORT MAPPING
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -22,7 +22,7 @@ npm install @openapitools/openapi-generator-cli -g
 To install a specific version of the tool, pass the version during installation:
 <!-- RELEASE_VERSION -->
 ```bash
-openapi-generator-cli version-manager set 7.16.0
+openapi-generator-cli version-manager set 7.15.0
 ```
 <!-- /RELEASE_VERSION -->
 To install the tool as a dev dependency in your current project:
@@ -119,18 +119,18 @@ docker run --rm \
 <!-- RELEASE_VERSION -->
 If you're looking for the latest stable version, you can grab it directly from Maven.org (Java 11 runtime at a minimum):

-JAR location: `https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.16.0/openapi-generator-cli-7.16.0.jar`
+JAR location: `https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.15.0/openapi-generator-cli-7.15.0.jar`

 For **Mac/Linux** users:

 ```bash
-wget https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.16.0/openapi-generator-cli-7.16.0.jar -O openapi-generator-cli.jar
+wget https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.15.0/openapi-generator-cli-7.15.0.jar -O openapi-generator-cli.jar
 ```

 For **Windows** users, you will need to install [wget](http://gnuwin32.sourceforge.net/packages/wget.htm) or you can use Invoke-WebRequest in PowerShell (3.0+), e.g.

 ```powershell
-Invoke-WebRequest -OutFile openapi-generator-cli.jar https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.16.0/openapi-generator-cli-7.16.0.jar
+Invoke-WebRequest -OutFile openapi-generator-cli.jar https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.15.0/openapi-generator-cli-7.15.0.jar
 ```
 <!-- /RELEASE_VERSION -->

--- a/docs/plugins.md
+++ b/docs/plugins.md
@@ -16,7 +16,7 @@ Add to your `build->plugins` section (default phase is `generate-sources` phase)
 <plugin>
    <groupId>org.openapitools</groupId>
    <artifactId>openapi-generator-maven-plugin</artifactId>
-    <version>7.16.0</version>
+    <version>7.15.0</version>
    <executions>
        <execution>
            <goals>
--- a/modules/openapi-generator-cli/pom.xml
+++ b/modules/openapi-generator-cli/pom.xml
@@ -4,7 +4,7 @@
        <groupId>org.openapitools</groupId>
        <artifactId>openapi-generator-project</artifactId>
        <!-- RELEASE_VERSION -->
-        <version>7.17.0-SNAPSHOT</version>
+        <version>7.16.0-SNAPSHOT</version>
        <!-- /RELEASE_VERSION -->
        <relativePath>../../pom.xml</relativePath>
    </parent>
--- a/modules/openapi-generator-core/pom.xml
+++ b/modules/openapi-generator-core/pom.xml
@@ -6,7 +6,7 @@
    <artifactId>openapi-generator-project</artifactId>
    <groupId>org.openapitools</groupId>
    <!-- RELEASE_VERSION -->
-    <version>7.17.0-SNAPSHOT</version>
+    <version>7.16.0-SNAPSHOT</version>
    <!-- /RELEASE_VERSION -->
    <relativePath>../../pom.xml</relativePath>
  </parent>
--- a/modules/openapi-generator-gradle-plugin/README.adoc
+++ b/modules/openapi-generator-gradle-plugin/README.adoc
@@ -97,7 +97,7 @@ task validateGoodSpec(type: org.openapitools.generator.gradle.plugin.tasks.Valid
 [source,group]
 ----
 plugins {
-  id "org.openapi.generator" version "7.16.0"
+  id "org.openapi.generator" version "7.15.0"
 }
 ----

@@ -113,7 +113,7 @@ buildscript {
    // url "https://plugins.gradle.org/m2/"
  }
  dependencies {
-    classpath "org.openapitools:openapi-generator-gradle-plugin:7.16.0"
+    classpath "org.openapitools:openapi-generator-gradle-plugin:7.15.0"
  }
 }

@@ -759,7 +759,7 @@ buildscript {
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
-        classpath('org.openapitools:openapi-generator-gradle-plugin:7.16.0') {
+        classpath('org.openapitools:openapi-generator-gradle-plugin:7.15.0') {
            exclude group: 'com.google.guava'
        }
    }
--- a/modules/openapi-generator-gradle-plugin/gradle.properties
+++ b/modules/openapi-generator-gradle-plugin/gradle.properties
@@ -1,5 +1,5 @@
 # RELEASE_VERSION
-openApiGeneratorVersion=7.17.0-SNAPSHOT
+openApiGeneratorVersion=7.16.0-SNAPSHOT
 # /RELEASE_VERSION

 # BEGIN placeholders
--- a/modules/openapi-generator-gradle-plugin/pom.xml
+++ b/modules/openapi-generator-gradle-plugin/pom.xml
@@ -4,7 +4,7 @@
        <groupId>org.openapitools</groupId>
        <artifactId>openapi-generator-project</artifactId>
        <!-- RELEASE_VERSION -->
-        <version>7.17.0-SNAPSHOT</version>
+        <version>7.16.0-SNAPSHOT</version>
        <!-- /RELEASE_VERSION -->
        <relativePath>../../pom.xml</relativePath>
    </parent>
--- a/modules/openapi-generator-gradle-plugin/samples/local-spec/README.md
+++ b/modules/openapi-generator-gradle-plugin/samples/local-spec/README.md
@@ -19,5 +19,5 @@ gradle generateGoWithInvalidSpec    # expected outcome: BUILD FAILED
 The samples can be tested against other versions of the plugin using the `openApiGeneratorVersion` property. For example:

 ```bash
-gradle -PopenApiGeneratorVersion=7.16.0 openApiValidate
+gradle -PopenApiGeneratorVersion=7.15.0 openApiValidate
 ```
--- a/modules/openapi-generator-gradle-plugin/samples/local-spec/gradle.properties
+++ b/modules/openapi-generator-gradle-plugin/samples/local-spec/gradle.properties
@@ -1,3 +1,3 @@
 # RELEASE_VERSION
-openApiGeneratorVersion=7.17.0-SNAPSHOT
+openApiGeneratorVersion=7.16.0-SNAPSHOT
 # /RELEASE_VERSION
--- a/modules/openapi-generator-maven-plugin/README.md
+++ b/modules/openapi-generator-maven-plugin/README.md
@@ -12,7 +12,7 @@ Add to your `build->plugins` section (default phase is `generate-sources` phase)
    <groupId>org.openapitools</groupId>
    <artifactId>openapi-generator-maven-plugin</artifactId>
    <!-- RELEASE_VERSION -->
-    <version>7.16.0</version>
+    <version>7.15.0</version>
    <!-- /RELEASE_VERSION -->
    <executions>
        <execution>
--- a/modules/openapi-generator-maven-plugin/examples/java-client.xml
+++ b/modules/openapi-generator-maven-plugin/examples/java-client.xml
@@ -13,7 +13,7 @@
                <groupId>org.openapitools</groupId>
                <artifactId>openapi-generator-maven-plugin</artifactId>
                <!-- RELEASE_VERSION -->
-                <version>7.17.0-SNAPSHOT</version>
+                <version>7.16.0-SNAPSHOT</version>
                <!-- /RELEASE_VERSION -->
                <executions>
                    <execution>
--- a/modules/openapi-generator-maven-plugin/examples/kotlin.xml
+++ b/modules/openapi-generator-maven-plugin/examples/kotlin.xml
@@ -15,7 +15,7 @@
 				<groupId>org.openapitools</groupId>
 				<artifactId>openapi-generator-maven-plugin</artifactId>
 				<!-- RELEASE_VERSION -->
-				<version>7.17.0-SNAPSHOT</version>
+				<version>7.16.0-SNAPSHOT</version>
 				<!-- /RELEASE_VERSION -->
 				<executions>
 					<execution>
--- a/modules/openapi-generator-maven-plugin/examples/multi-module/java-client/pom.xml
+++ b/modules/openapi-generator-maven-plugin/examples/multi-module/java-client/pom.xml
@@ -19,7 +19,7 @@
                <groupId>org.openapitools</groupId>
                <artifactId>openapi-generator-maven-plugin</artifactId>
                <!-- RELEASE_VERSION -->
-                <version>7.17.0-SNAPSHOT</version>
+                <version>7.16.0-SNAPSHOT</version>
                <!-- /RELEASE_VERSION -->
                <dependencies>
                    <dependency>
--- a/modules/openapi-generator-maven-plugin/examples/non-java-invalid-spec.xml
+++ b/modules/openapi-generator-maven-plugin/examples/non-java-invalid-spec.xml
@@ -13,7 +13,7 @@
                <groupId>org.openapitools</groupId>
                <artifactId>openapi-generator-maven-plugin</artifactId>
                <!-- RELEASE_VERSION -->
-                <version>7.17.0-SNAPSHOT</version>
+                <version>7.16.0-SNAPSHOT</version>
                <!-- /RELEASE_VERSION -->
                <executions>
                    <execution>
--- a/modules/openapi-generator-maven-plugin/examples/non-java.xml
+++ b/modules/openapi-generator-maven-plugin/examples/non-java.xml
@@ -13,7 +13,7 @@
                <groupId>org.openapitools</groupId>
                <artifactId>openapi-generator-maven-plugin</artifactId>
                <!-- RELEASE_VERSION -->
-                <version>7.17.0-SNAPSHOT</version>
+                <version>7.16.0-SNAPSHOT</version>
                <!-- /RELEASE_VERSION -->
                <executions>
                    <execution>
--- a/modules/openapi-generator-maven-plugin/examples/spring.xml
+++ b/modules/openapi-generator-maven-plugin/examples/spring.xml
@@ -20,7 +20,7 @@
                <groupId>org.openapitools</groupId>
                <artifactId>openapi-generator-maven-plugin</artifactId>
                <!-- RELEASE_VERSION -->
-                <version>7.17.0-SNAPSHOT</version>
+                <version>7.16.0-SNAPSHOT</version>
                <!-- /RELEASE_VERSION -->
                <executions>
                    <execution>
--- a/modules/openapi-generator-maven-plugin/pom.xml
+++ b/modules/openapi-generator-maven-plugin/pom.xml
@@ -5,7 +5,7 @@
        <groupId>org.openapitools</groupId>
        <artifactId>openapi-generator-project</artifactId>
        <!-- RELEASE_VERSION -->
-        <version>7.17.0-SNAPSHOT</version>
+        <version>7.16.0-SNAPSHOT</version>
        <!-- /RELEASE_VERSION -->
        <relativePath>../../pom.xml</relativePath>
    </parent>
--- a/modules/openapi-generator-online/pom.xml
+++ b/modules/openapi-generator-online/pom.xml
@@ -4,7 +4,7 @@
        <groupId>org.openapitools</groupId>
        <artifactId>openapi-generator-project</artifactId>
        <!-- RELEASE_VERSION -->
-        <version>7.17.0-SNAPSHOT</version>
+        <version>7.16.0-SNAPSHOT</version>
        <!-- /RELEASE_VERSION -->
        <relativePath>../../pom.xml</relativePath>
    </parent>
--- a/modules/openapi-generator/pom.xml
+++ b/modules/openapi-generator/pom.xml
@@ -4,7 +4,7 @@
        <groupId>org.openapitools</groupId>
        <artifactId>openapi-generator-project</artifactId>
        <!-- RELEASE_VERSION -->
-        <version>7.17.0-SNAPSHOT</version>
+        <version>7.16.0-SNAPSHOT</version>
        <!-- /RELEASE_VERSION -->
        <relativePath>../../pom.xml</relativePath>
    </parent>
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/CodegenConstants.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/CodegenConstants.java
@@ -456,31 +456,4 @@ public class CodegenConstants {
    public static final String USE_DEFAULT_VALUES_FOR_REQUIRED_VARS = "useDefaultValuesForRequiredVars";

    public static final String DEFAULT_TO_EMPTY_CONTAINER = "defaultToEmptyContainer";
-
-    // Vendor extensions
-    public static final String X_INTERNAL = "x-internal";
-    public static final String X_PARENT = "x-parent";
-    public static final String X_COMPOSED_DATA_TYPE = "x-composed-data-type";
-    public static final String X_BASE_NAME = "x-base-name";
-    public static final String X_IS_VALUE_TYPE = "x-is-value-type";
-    public static final String X_IS_REFERENCE_TYPE = "x-is-reference-type";
-    public static final String X_IS_NULLABLE_TYPE = "x-is-nullable-type";
-    public static final String X_IS_BASE_OR_NEW_DISCRIMINATOR = "x-is-base-or-new-discriminator";
-    public static final String X_ENUM_BYTE = "x-enum-byte";
-    public static final String X_HTTP_STATUS = "x-http-status";
-    public static final String X_HTTP_STATUSES_WITH_RETURN = "x-http-statuses-with-return";
-    public static final String X_SET_COOKIE = "x-set-cookie";
-    public static final String X_DUPLICATES = "x-duplicates";
-    public static final String X_HTTP_STATUS_IS_DEFAULT = "x-http-status-is-default";
-    public static final String X_ONLY_DEFAULT = "x-only-default";
-    public static final String X_HTTP_STATUS_RANGE = "x-http-status-range";
-    public static final String X_NOT_NULLABLE_REFERENCE_TYPES = "x-not-nullable-reference-types";
-    public static final String X_HAS_NOT_NULLABLE_REFERENCE_TYPES = "x-has-not-nullable-reference-types";
-    public static final String X_NULLABLE_VALUE_TYPE = "x-nullable-value-type";
-    public static final String X_NULLABLE_TYPE = "x-nullable-type";
-    public static final String X_CSHARP_VALUE_TYPE = "x-csharp-value-type";
-    public static final String X_REGEX = "x-regex";
-    public static final String X_MODIFIERS = "x-modifiers";
-    public static final String X_MODIFIER_PREFIX = "x-modifier-";
-    public static final String X_MODEL_IS_MUTABLE = "x-model-is-mutable";
 }
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/CodegenOperation.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/CodegenOperation.java
@@ -115,15 +115,6 @@ public class CodegenOperation {
        return nonEmpty(bodyParams);
    }

-    /**
-     * Check if there's at least one optional body parameter
-     *
-     * @return true if optional body parameter exists, false otherwise
-     */
-    public boolean getHasOptionalBodyParam() {
-        return nonEmpty(bodyParams) && nonEmpty(optionalParams) && bodyParams.stream().anyMatch(optionalParams::contains);
-    }
-
    /**
     * Check if there's at least one query parameter
     *
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java
@@ -88,7 +88,8 @@ import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;

-import static org.openapitools.codegen.CodegenConstants.*;
+import static org.openapitools.codegen.CodegenConstants.DEFAULT_TO_EMPTY_CONTAINER;
+import static org.openapitools.codegen.CodegenConstants.UNSUPPORTED_V310_SPEC_MSG;
 import static org.openapitools.codegen.utils.CamelizeOption.LOWERCASE_FIRST_LETTER;
 import static org.openapitools.codegen.utils.OnceLogger.once;
 import static org.openapitools.codegen.utils.StringUtils.*;
@@ -5196,7 +5197,7 @@ public class DefaultCodegen implements CodegenConfig {
                        String method = p.getKey();
                        Operation op = p.getValue();

-                        if (op.getExtensions() != null && Boolean.TRUE.equals(op.getExtensions().get(X_INTERNAL))) {
+                        if (op.getExtensions() != null && Boolean.TRUE.equals(op.getExtensions().get("x-internal"))) {
                            // skip operation if x-internal sets to true
                            LOGGER.info("Operation ({} {} - {}) not generated since x-internal is set to true",
                                    method, expression, op.getOperationId());
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultGenerator.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultGenerator.java
@@ -61,7 +61,6 @@ import java.util.function.Supplier;
 import java.util.stream.Collectors;

 import static org.apache.commons.lang3.StringUtils.removeStart;
-import static org.openapitools.codegen.CodegenConstants.X_INTERNAL;
 import static org.openapitools.codegen.utils.OnceLogger.once;

@SuppressWarnings("rawtypes")
@@ -487,7 +486,7 @@ public class DefaultGenerator implements Generator {

                Schema schema = ModelUtils.getSchemas(this.openAPI).get(name);

-                if (schema.getExtensions() != null && Boolean.TRUE.equals(schema.getExtensions().get(X_INTERNAL))) {
+                if (schema.getExtensions() != null && Boolean.TRUE.equals(schema.getExtensions().get("x-internal"))) {
                    LOGGER.info("Model {} not generated since x-internal is set to true", name);
                    continue;
                } else if (ModelUtils.isFreeFormObject(schema, openAPI)) { // check to see if it's a free-form object
@@ -1565,7 +1564,7 @@ public class DefaultGenerator implements Generator {
        final List<SecurityRequirement> globalSecurities = openAPI.getSecurity();
        for (Tag tag : tags) {
            try {
-                if (operation.getExtensions() != null && Boolean.TRUE.equals(operation.getExtensions().get(X_INTERNAL))) {
+                if (operation.getExtensions() != null && Boolean.TRUE.equals(operation.getExtensions().get("x-internal"))) {
                    // skip operation if x-internal sets to true
                    LOGGER.info("Operation ({} {} - {}) not generated since x-internal is set to true",
                            httpMethod, resourcePath, operation.getOperationId());
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/OpenAPINormalizer.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/OpenAPINormalizer.java
@@ -37,8 +37,6 @@ import java.util.*;
 import java.util.function.Function;
 import java.util.stream.Collectors;

-import static org.openapitools.codegen.CodegenConstants.X_INTERNAL;
-import static org.openapitools.codegen.CodegenConstants.X_PARENT;
 import static org.openapitools.codegen.utils.ModelUtils.simplifyOneOfAnyOfWithOnlyOneNonNullSubSchema;
 import static org.openapitools.codegen.utils.StringUtils.getUniqueString;

@@ -129,6 +127,7 @@ public class OpenAPINormalizer {

    // when set to true, remove x-internal: true from models, operations
    final String REMOVE_X_INTERNAL = "REMOVE_X_INTERNAL";
+    final String X_INTERNAL = "x-internal";
    boolean removeXInternal;

    // when set (e.g. operationId:getPetById|addPet), filter out (or remove) everything else
@@ -432,17 +431,17 @@ public class OpenAPINormalizer {
            for (Operation operation : operations) {
                if (operationIdFilters.size() > 0) {
                    if (operationIdFilters.contains(operation.getOperationId())) {
-                        operation.addExtension(X_INTERNAL, false);
+                        operation.addExtension("x-internal", false);
                    } else {
                        LOGGER.info("operation `{}` marked as internal only (x-internal: true) by the operationId FILTER", operation.getOperationId());
-                        operation.addExtension(X_INTERNAL, true);
+                        operation.addExtension("x-internal", true);
                    }
                } else if (!tagFilters.isEmpty()) {
                    if (operation.getTags().stream().anyMatch(tagFilters::contains)) {
-                        operation.addExtension(X_INTERNAL, false);
+                        operation.addExtension("x-internal", false);
                    } else {
                        LOGGER.info("operation `{}` marked as internal only (x-internal: true) by the tag FILTER", operation.getOperationId());
-                        operation.addExtension(X_INTERNAL, true);
+                        operation.addExtension("x-internal", true);
                    }
                }

@@ -724,17 +723,15 @@ public class OpenAPINormalizer {
        if (skipNormalization(schema, visitedSchemas)) {
            return schema;
        }
-
-        if (ModelUtils.isNullTypeSchema(openAPI, schema)) {
-            return schema;
-        }
-
        markSchemaAsVisited(schema, visitedSchemas);

        if (ModelUtils.isArraySchema(schema)) { // array
            Schema result = normalizeArraySchema(schema);
            normalizeSchema(result.getItems(), visitedSchemas);
            return result;
+        } else if (schema.getAdditionalProperties() instanceof Schema) { // map
+            normalizeMapSchema(schema);
+            normalizeSchema((Schema) schema.getAdditionalProperties(), visitedSchemas);
        } else if (ModelUtils.isOneOf(schema)) { // oneOf
            return normalizeOneOf(schema, visitedSchemas);
        } else if (ModelUtils.isAnyOf(schema)) { // anyOf
@@ -771,9 +768,6 @@ public class OpenAPINormalizer {
            return schema;
        } else if (schema.getProperties() != null && !schema.getProperties().isEmpty()) {
            normalizeProperties(schema.getProperties(), visitedSchemas);
-        } else if (schema.getAdditionalProperties() instanceof Schema) { // map
-            normalizeMapSchema(schema);
-            normalizeSchema((Schema) schema.getAdditionalProperties(), visitedSchemas);
        } else if (schema instanceof BooleanSchema) {
            normalizeBooleanSchema(schema, visitedSchemas);
        } else if (schema instanceof IntegerSchema) {
@@ -855,20 +849,6 @@ public class OpenAPINormalizer {
        }
        for (Map.Entry<String, Schema> propertiesEntry : properties.entrySet()) {
            Schema property = propertiesEntry.getValue();
-            
-            // remove x-internal if needed (same logic as normalizeComponentsSchemas)
-            if (property.getExtensions() != null && getRule(REMOVE_X_INTERNAL)) {
-                Object xInternalValue = property.getExtensions().get(X_INTERNAL);
-                boolean isInternal = false;
-                if (xInternalValue instanceof Boolean) {
-                    isInternal = (Boolean) xInternalValue;
-                } else if (xInternalValue instanceof String) {
-                    isInternal = Boolean.parseBoolean((String) xInternalValue);
-                }
-                if (isInternal) {
-                    property.getExtensions().remove(X_INTERNAL);
-                }
-            }
            Schema newProperty = normalizeSchema(property, new HashSet<>());
            propertiesEntry.setValue(newProperty);
        }
@@ -1031,7 +1011,6 @@ public class OpenAPINormalizer {
        if (schema.getAnyOf() == null) {
            return schema;
        }
-
        for (int i = 0; i < schema.getAnyOf().size(); i++) {
            // normalize anyOf sub schemas one by one
            Object item = schema.getAnyOf().get(i);
@@ -1104,10 +1083,10 @@ public class OpenAPINormalizer {
                    refSchema.setExtensions(new HashMap<>());
                }

-                if (refSchema.getExtensions().containsKey(X_PARENT)) {
+                if (refSchema.getExtensions().containsKey("x-parent")) {
                    // doing nothing as x-parent already exists
                } else {
-                    refSchema.getExtensions().put(X_PARENT, true);
+                    refSchema.getExtensions().put("x-parent", true);
                }

                LOGGER.debug("processUseAllOfRefAsParent added `x-parent: true` to {}", refSchema);
@@ -1129,7 +1108,7 @@ public class OpenAPINormalizer {
            return;
        }

-        if (Boolean.parseBoolean(String.valueOf(operation.getExtensions().get(X_INTERNAL)))) {
+        if (Boolean.parseBoolean(String.valueOf(operation.getExtensions().get("x-internal")))) {
            operation.getExtensions().remove(X_INTERNAL);
        }
    }
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/VendorExtension.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/VendorExtension.java
@@ -13,7 +13,6 @@ public enum VendorExtension {
    X_KOTLIN_IMPLEMENTS("x-kotlin-implements", ExtensionLevel.MODEL, "Ability to specify interfaces that model must implement", "empty array"),
    X_KOTLIN_IMPLEMENTS_FIELDS("x-kotlin-implements-fields", ExtensionLevel.MODEL, "Specify attributes that are implemented by the interface(s) added via `x-kotlin-implements`", "empty array"),
    X_SPRING_PAGINATED("x-spring-paginated", ExtensionLevel.OPERATION, "Add `org.springframework.data.domain.Pageable` to controller method. Can be used to handle `page`, `size` and `sort` query parameters. If these query parameters are also specified in the operation spec, they will be removed from the controller method as their values can be obtained from the `Pageable` object.", "false"),
-    X_SPRING_API_VERSION("x-spring-api-version", ExtensionLevel.OPERATION, "Value for 'version' attribute in @RequestMapping (for Spring 7 and above).", null),
    X_SPRING_PROVIDE_ARGS("x-spring-provide-args", ExtensionLevel.OPERATION, "Allows adding additional hidden parameters in the API specification to allow access to content such as header values or properties", "empty array"),
    X_DISCRIMINATOR_VALUE("x-discriminator-value", ExtensionLevel.MODEL, "Used with model inheritance to specify value for discriminator that identifies current model", ""),
    X_SETTER_EXTRA_ANNOTATION("x-setter-extra-annotation", ExtensionLevel.FIELD, "Custom annotation that can be specified over java setter for specific field", "When field is array & uniqueItems, then this extension is used to add `@JsonDeserialize(as = LinkedHashSet.class)` over setter, otherwise no value"),
@@ -27,7 +26,8 @@ public enum VendorExtension {
    X_OPERATION_EXTRA_ANNOTATION("x-operation-extra-annotation", ExtensionLevel.OPERATION, "List of custom annotations to be added to operation", null),
    X_VERSION_PARAM("x-version-param", ExtensionLevel.OPERATION_PARAMETER, "Marker property that tells that this parameter would be used for endpoint versioning. Applicable for headers & query params. true/false", null),
    X_PATTERN_MESSAGE("x-pattern-message", Arrays.asList(ExtensionLevel.FIELD, ExtensionLevel.OPERATION_PARAMETER), "Add this property whenever you need to customize the invalidation error message for the regex pattern of a variable", null),
-    X_ZERO_BASED_ENUM("x-zero-based-enum", ExtensionLevel.MODEL, "When used on an enum, the index will not be generated and the default numbering will be used, zero-based", "false");
+    X_ZERO_BASED_ENUM("x-zero-based-enum", ExtensionLevel.MODEL, "When used on an enum, the index will not be generated and the default numbering will be used, zero-based", "false"),
+    ;

    private final String name;
    private final List<ExtensionLevel> levels;
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractCSharpCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractCSharpCodegen.java
@@ -46,7 +46,6 @@ import java.util.*;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;

-import static org.openapitools.codegen.CodegenConstants.*;
 import static org.openapitools.codegen.utils.CamelizeOption.LOWERCASE_FIRST_LETTER;
 import static org.openapitools.codegen.utils.ModelUtils.getSchemaItems;
 import static org.openapitools.codegen.utils.StringUtils.camelize;
@@ -117,9 +116,6 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
    // A cache to efficiently lookup schema `toModelName()` based on the schema Key
    private final Map<String, String> schemaKeyToModelNameCache = new HashMap<>();

-    // A cache to efficiently lookup CodegenModel `fromModel(codegenModelName, parentModelSchema)` based on the pair of model name and schema
-    private final Map<Map.Entry<String, Schema>, CodegenModel> codegenModelNameAndSchemaKeyToCodegenModelCache = new HashMap<>();
-
    public AbstractCSharpCodegen() {
        super();

@@ -547,7 +543,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                        if (dataTypeSet.contains(oneOfProperty.dataType)) {
                            // add "x-duplicated-data-type" to indicate if the dataType already occurs before
                            // in other sub-schemas of allOf/anyOf/oneOf
-                            oneOfProperty.vendorExtensions.putIfAbsent(X_COMPOSED_DATA_TYPE, true);
+                            oneOfProperty.vendorExtensions.putIfAbsent("x-composed-data-type", true);
                        } else {
                            dataTypeSet.add(oneOfProperty.dataType);
                        }
@@ -561,7 +557,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                        if (dataTypeSet.contains(anyOfProperty.dataType)) {
                            // add "x-duplicated-data-type" to indicate if the dataType already occurs before
                            // in other sub-schemas of allOf/anyOf/oneOf
-                            anyOfProperty.vendorExtensions.putIfAbsent(X_COMPOSED_DATA_TYPE, true);
+                            anyOfProperty.vendorExtensions.putIfAbsent("x-composed-data-type", true);
                        } else {
                            dataTypeSet.add(anyOfProperty.dataType);
                        }
@@ -623,7 +619,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                continue;
            }

-            model.vendorExtensions.put(X_MODEL_IS_MUTABLE, modelIsMutable(model, null));
+            model.vendorExtensions.put("x-model-is-mutable", modelIsMutable(model, null));

            CodegenComposedSchemas composedSchemas = model.getComposedSchemas();
            if (composedSchemas != null) {
@@ -643,7 +639,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                        patchProperty(enumRefs, model, property);
                        property.name = patchPropertyName(model, property, camelize(property.baseType), composedPropertyNames);
                        property.isNullable = true;
-                        property.vendorExtensions.put(X_BASE_NAME, model.name.substring(model.name.lastIndexOf('_') + 1));
+                        property.vendorExtensions.put("x-base-name", model.name.substring(model.name.lastIndexOf('_') + 1));
                    }
                }

@@ -654,7 +650,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                        patchProperty(enumRefs, model, property);
                        property.name = patchPropertyName(model, property, camelize(property.baseType), composedPropertyNames);
                        property.isNullable = true;
-                        property.vendorExtensions.put(X_BASE_NAME, model.name.substring(model.name.lastIndexOf('_') + 1));
+                        property.vendorExtensions.put("x-base-name", model.name.substring(model.name.lastIndexOf('_') + 1));
                    }
                }
            }
@@ -788,10 +784,10 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {

    private void patchPropertyVendorExtensions(CodegenProperty property) {
        boolean isValueType = isValueType(property);
-        property.vendorExtensions.put(X_IS_VALUE_TYPE, isValueType);
-        property.vendorExtensions.put(X_IS_REFERENCE_TYPE, !isValueType);
-        property.vendorExtensions.put(X_IS_NULLABLE_TYPE, this.getNullableReferencesTypes() || isValueType);
-        property.vendorExtensions.put(X_IS_BASE_OR_NEW_DISCRIMINATOR, (property.isDiscriminator && !property.isInherited) || (property.isDiscriminator && property.isNew));
+        property.vendorExtensions.put("x-is-value-type", isValueType);
+        property.vendorExtensions.put("x-is-reference-type", !isValueType);
+        property.vendorExtensions.put("x-is-nullable-type", this.getNullableReferencesTypes() || isValueType);
+        property.vendorExtensions.put("x-is-base-or-new-discriminator", (property.isDiscriminator && !property.isInherited) || (property.isDiscriminator && property.isNew));
    }

    protected void patchPropertyIsInherited(CodegenModel model, CodegenProperty property) {
@@ -892,7 +888,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
        // Because C# uses nullable primitives for datatype, and datatype is used in DefaultCodegen for determining enum-ness, guard against weirdness here.
        if (var.isEnum) {
            if ("byte".equals(var.dataFormat)) {// C# Actually supports byte and short enums.
-                var.vendorExtensions.put(X_ENUM_BYTE, true);
+                var.vendorExtensions.put("x-enum-byte", true);
                var.isString = false;
                var.isLong = false;
                var.isInteger = false;
@@ -913,7 +909,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
    }

    private void postProcessResponseCode(CodegenResponse response, String status, Set<String> httpStatusesWithReturn) {
-        response.vendorExtensions.put(X_HTTP_STATUS, status);
+        response.vendorExtensions.put("x-http-status", status);
        if (response.dataType != null) {
            httpStatusesWithReturn.add(status);
        }
@@ -946,11 +942,11 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
    }

    private void postProcessOperations(OperationMap operations, List<ModelMap> allModels) {
-        Set<String> httpStatusesWithReturn = additionalProperties.get(X_HTTP_STATUSES_WITH_RETURN) instanceof Set<?>
-                ? (Set<String>) additionalProperties.get(X_HTTP_STATUSES_WITH_RETURN)
+        Set<String> httpStatusesWithReturn = additionalProperties.get("x-http-statuses-with-return") instanceof Set<?>
+                ? (Set<String>) additionalProperties.get("x-http-statuses-with-return")
                : new HashSet<String>();

-        additionalProperties.put(X_HTTP_STATUSES_WITH_RETURN, httpStatusesWithReturn);
+        additionalProperties.put("x-http-statuses-with-return", httpStatusesWithReturn);

        HashMap<String, CodegenModel> modelMaps = ModelMap.toCodegenModelMap(allModels);

@@ -959,7 +955,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
            for (CodegenOperation operation : ops) {
                String duplicates = duplicateOf.get(operation.operationId);
                if (duplicates != null) {
-                    operation.vendorExtensions.put(X_DUPLICATES, duplicates);
+                    operation.vendorExtensions.put("x-duplicates", duplicates);
                } else {
                    duplicateOf.put(operation.operationId, operations.getClassname());
                }
@@ -968,13 +964,13 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {

                        if (response.returnProperty != null) {
                            Boolean isValueType = isValueType(response.returnProperty);
-                            response.vendorExtensions.put(X_IS_VALUE_TYPE, isValueType);
-                            response.vendorExtensions.put(X_IS_REFERENCE_TYPE, !isValueType);
+                            response.vendorExtensions.put("x-is-value-type", isValueType);
+                            response.vendorExtensions.put("x-is-reference-type", !isValueType);
                        }

                        if (response.headers != null && response.headers.stream().anyMatch(h -> h.baseName.equals("Set-Cookie"))) {
-                            response.vendorExtensions.put(X_SET_COOKIE, true);
-                            operation.vendorExtensions.put(X_SET_COOKIE, true);
+                            response.vendorExtensions.put("x-set-cookie", true);
+                            operation.vendorExtensions.put("x-set-cookie", true);
                        }

                        String code = response.code.toLowerCase(Locale.ROOT);
@@ -982,9 +978,9 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                            case "default":
                            case "0":
                                postProcessResponseCode(response, "Default", httpStatusesWithReturn);
-                                response.vendorExtensions.put(X_HTTP_STATUS_IS_DEFAULT, true);
+                                response.vendorExtensions.put("x-http-status-is-default", true);
                                if ((long) operation.responses.size() == 1) {
-                                    response.vendorExtensions.put(X_ONLY_DEFAULT, true);
+                                    response.vendorExtensions.put("x-only-default", true);
                                }
                                break;
                            case "100":
@@ -1165,23 +1161,23 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                                postProcessResponseCode(response, "NetworkAuthenticationRequired", httpStatusesWithReturn);
                                break;
                            case "1xx":
-                                response.vendorExtensions.put(X_HTTP_STATUS_RANGE, 1);
+                                response.vendorExtensions.put("x-http-status-range", 1);
                                postProcessResponseCode(response, "HttpStatusCode1XX", httpStatusesWithReturn);
                                break;
                            case "2xx":
-                                response.vendorExtensions.put(X_HTTP_STATUS_RANGE, 2);
+                                response.vendorExtensions.put("x-http-status-range", 2);
                                postProcessResponseCode(response, "HttpStatusCode2XX", httpStatusesWithReturn);
                                break;
                            case "3xx":
-                                response.vendorExtensions.put(X_HTTP_STATUS_RANGE, 3);
+                                response.vendorExtensions.put("x-http-status-range", 3);
                                postProcessResponseCode(response, "HttpStatusCode3XX", httpStatusesWithReturn);
                                break;
                            case "4xx":
-                                response.vendorExtensions.put(X_HTTP_STATUS_RANGE, 4);
+                                response.vendorExtensions.put("x-http-status-range", 4);
                                postProcessResponseCode(response, "HttpStatusCode4XX", httpStatusesWithReturn);
                                break;
                            case "5xx":
-                                response.vendorExtensions.put(X_HTTP_STATUS_RANGE, 5);
+                                response.vendorExtensions.put("x-http-status-range", 5);
                                postProcessResponseCode(response, "HttpStatusCode5XX", httpStatusesWithReturn);
                                break;
                            default:
@@ -1282,9 +1278,9 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                    patchParameter(model, parameter);
                }

-                List<CodegenParameter> referenceTypes = operation.allParams.stream().filter(p -> p.vendorExtensions.get(X_IS_VALUE_TYPE) == null && !p.isNullable).collect(Collectors.toList());
-                operation.vendorExtensions.put(X_NOT_NULLABLE_REFERENCE_TYPES, referenceTypes);
-                operation.vendorExtensions.put(X_HAS_NOT_NULLABLE_REFERENCE_TYPES, referenceTypes.size() > 0);
+                List<CodegenParameter> referenceTypes = operation.allParams.stream().filter(p -> p.vendorExtensions.get("x-is-value-type") == null && !p.isNullable).collect(Collectors.toList());
+                operation.vendorExtensions.put("x-not-nullable-reference-types", referenceTypes);
+                operation.vendorExtensions.put("x-has-not-nullable-reference-types", referenceTypes.size() > 0);
                processOperation(operation);

                // Remove constant params from allParams list and add to constantParams
@@ -1295,7 +1291,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {

    protected void patchVendorExtensionNullableValueType(CodegenParameter parameter) {
        if (parameter.isNullable && !parameter.isContainer && (this.getValueTypes().contains(parameter.dataType) || parameter.isEnum)) {
-            parameter.vendorExtensions.put(X_NULLABLE_VALUE_TYPE, true);
+            parameter.vendorExtensions.put("x-nullable-value-type", true);
        }
    }

@@ -1311,15 +1307,15 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
     */
    protected void patchVendorExtensionNullableValueTypeLegacy(CodegenParameter parameter) {
        if (parameter.isNullable && !parameter.isContainer && (this.getNullableTypes().contains(parameter.dataType) || parameter.isEnum)) {
-            parameter.vendorExtensions.put(X_NULLABLE_VALUE_TYPE, true);
+            parameter.vendorExtensions.put("x-nullable-value-type", true);
        }
    }

    private void patchParameter(CodegenModel model, CodegenParameter parameter) {
        patchVendorExtensionNullableValueType(parameter);

-        if (this.getNullableReferencesTypes() || (parameter.vendorExtensions.get(X_NULLABLE_VALUE_TYPE) != null)) {
-            parameter.vendorExtensions.put(X_NULLABLE_TYPE, true);
+        if (this.getNullableReferencesTypes() || (parameter.vendorExtensions.get("x-nullable-value-type") != null)) {
+            parameter.vendorExtensions.put("x-nullable-type", true);
        }

        if (!isSupportNullable()) {
@@ -1366,12 +1362,12 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                parameter.isEnum = true;
                parameter.allowableValues = model.allowableValues;
                parameter.isPrimitiveType = true;
-                parameter.vendorExtensions.put(X_CSHARP_VALUE_TYPE, true);
+                parameter.vendorExtensions.put("x-csharp-value-type", true);
            }
        }

        if (!parameter.isContainer && this.getNullableTypes().contains(parameter.dataType)) {
-            parameter.vendorExtensions.put(X_CSHARP_VALUE_TYPE, true);
+            parameter.vendorExtensions.put("x-csharp-value-type", true);
        }
    }

@@ -1381,12 +1377,12 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                parameter.isEnum = true;
                parameter.allowableValues = model.allowableValues;
                parameter.isPrimitiveType = true;
-                parameter.vendorExtensions.put(X_IS_VALUE_TYPE, true);
+                parameter.vendorExtensions.put("x-is-value-type", true);
            }
        }

        if (!parameter.isContainer && this.getValueTypes().contains(parameter.dataType)) {
-            parameter.vendorExtensions.put(X_IS_VALUE_TYPE, true);
+            parameter.vendorExtensions.put("x-is-value-type", true);
        }
    }

@@ -1707,17 +1703,6 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
        return toModelName(name) + "Tests";
    }

-    protected CodegenModel getCodegenModel(String codegenModelName, Schema schema){
-       var key = new AbstractMap.SimpleEntry<>(codegenModelName, schema);
-       if(codegenModelNameAndSchemaKeyToCodegenModelCache.containsKey(key)){
-           return codegenModelNameAndSchemaKeyToCodegenModelCache.get(key);
-       }
-
-       CodegenModel model = super.fromModel(codegenModelName, schema);
-       codegenModelNameAndSchemaKeyToCodegenModelCache.put(key, model);
-       return model;
-    }
-
    public void setNullableReferenceTypes(final Boolean nullReferenceTypesFlag) {
        this.nullReferenceTypesFlag = nullReferenceTypesFlag;
        additionalProperties.put("nullableReferenceTypes", nullReferenceTypesFlag);
@@ -2065,13 +2050,13 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen {
                } else if (c == 'l') {
                    modifiers.remove("CultureInvariant");
                } else {
-                    vendorExtensions.put(X_MODIFIER_PREFIX + c, c);
+                    vendorExtensions.put("x-modifier-" + c, c);
                }
            }

            String regex = pattern.substring(start, end).replace("\"", "\"\"");
-            vendorExtensions.put(X_REGEX, regex);
-            vendorExtensions.put(X_MODIFIERS, modifiers);
+            vendorExtensions.put("x-regex", regex);
+            vendorExtensions.put("x-modifiers", modifiers);
        }
    }

--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractFSharpCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractFSharpCodegen.java
@@ -37,7 +37,6 @@ import org.slf4j.LoggerFactory;
 import java.io.File;
 import java.util.*;

-import static org.openapitools.codegen.CodegenConstants.X_ENUM_BYTE;
 import static org.openapitools.codegen.utils.CamelizeOption.LOWERCASE_FIRST_LETTER;
 import static org.openapitools.codegen.utils.StringUtils.camelize;
 import static org.openapitools.codegen.utils.StringUtils.underscore;
@@ -434,7 +433,7 @@ public abstract class AbstractFSharpCodegen extends DefaultCodegen implements Co
                    if (model.dataType.startsWith("byte")) {
                        // F# Actually supports byte and short enums, swagger spec only supports byte.
                        isByte = true;
-                        model.vendorExtensions.put(X_ENUM_BYTE, true);
+                        model.vendorExtensions.put("x-enum-byte", true);
                    } else if (model.dataType.startsWith("int32")) {
                        isInteger = true;
                        model.vendorExtensions.put("x-enum-integer", true);
@@ -488,7 +487,7 @@ public abstract class AbstractFSharpCodegen extends DefaultCodegen implements Co
        // Because C# uses nullable primitives for datatype, and datatype is used in DefaultCodegen for determining enum-ness, guard against weirdness here.
        if (var.isEnum) {
            if ("byte".equals(var.dataFormat)) {// C# Actually supports byte and short enums.
-                var.vendorExtensions.put(X_ENUM_BYTE, true);
+                var.vendorExtensions.put("x-enum-byte", true);
                var.isString = false;
                var.isLong = false;
                var.isInteger = false;
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonCodegen.java
@@ -40,8 +40,6 @@ import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;

-import static org.openapitools.codegen.CodegenConstants.X_MODIFIERS;
-import static org.openapitools.codegen.CodegenConstants.X_REGEX;
 import static org.openapitools.codegen.utils.StringUtils.*;


@@ -1355,9 +1353,9 @@ public abstract class AbstractPythonCodegen extends DefaultCodegen implements Co
                }
            }

-            vendorExtensions.put(X_REGEX, regex.replace("\"", "\\\""));
+            vendorExtensions.put("x-regex", regex.replace("\"", "\\\""));
            vendorExtensions.put("x-pattern", pattern.replace("\"", "\\\""));
-            vendorExtensions.put(X_MODIFIERS, modifiers);
+            vendorExtensions.put("x-modifiers", modifiers);
        }
    }

--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonConnexionServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonConnexionServerCodegen.java
@@ -46,8 +46,6 @@ import java.io.File;
 import java.io.IOException;
 import java.util.*;

-import static org.openapitools.codegen.CodegenConstants.X_MODIFIERS;
-import static org.openapitools.codegen.CodegenConstants.X_REGEX;
 import static org.openapitools.codegen.utils.StringUtils.camelize;

 public abstract class AbstractPythonConnexionServerCodegen extends AbstractPythonCodegen implements CodegenConfig {
@@ -745,8 +743,8 @@ public abstract class AbstractPythonConnexionServerCodegen extends AbstractPytho
                }
            }

-            vendorExtensions.put(X_REGEX, regex);
-            vendorExtensions.put(X_MODIFIERS, modifiers);
+            vendorExtensions.put("x-regex", regex);
+            vendorExtensions.put("x-modifiers", modifiers);
        }
    }
 }
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonPydanticV1Codegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonPydanticV1Codegen.java
@@ -39,8 +39,6 @@ import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;

-import static org.openapitools.codegen.CodegenConstants.X_MODIFIERS;
-import static org.openapitools.codegen.CodegenConstants.X_REGEX;
 import static org.openapitools.codegen.utils.StringUtils.*;

 public abstract class AbstractPythonPydanticV1Codegen extends DefaultCodegen implements CodegenConfig {
@@ -1917,9 +1915,9 @@ public abstract class AbstractPythonPydanticV1Codegen extends DefaultCodegen imp
                }
            }

-            vendorExtensions.put(X_REGEX, regex.replace("\"", "\\\""));
+            vendorExtensions.put("x-regex", regex.replace("\"", "\\\""));
            vendorExtensions.put("x-pattern", pattern.replace("\"", "\\\""));
-            vendorExtensions.put(X_MODIFIERS, modifiers);
+            vendorExtensions.put("x-modifiers", modifiers);
        }
    }

--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AspNetServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AspNetServerCodegen.java
@@ -37,7 +37,6 @@ import java.net.URL;
 import java.util.*;

 import static java.util.UUID.randomUUID;
-import static org.openapitools.codegen.CodegenConstants.X_CSHARP_VALUE_TYPE;

 public class AspNetServerCodegen extends AbstractCSharpCodegen {

@@ -348,7 +347,7 @@ public class AspNetServerCodegen extends AbstractCSharpCodegen {
    protected void updateCodegenParameterEnum(CodegenParameter parameter, CodegenModel model) {
        super.updateCodegenParameterEnumLegacy(parameter, model);

-        if (!parameter.required && parameter.vendorExtensions.get(X_CSHARP_VALUE_TYPE) != null) { //optional
+        if (!parameter.required && parameter.vendorExtensions.get("x-csharp-value-type") != null) { //optional
            parameter.dataType = parameter.dataType + "?";
        }
    }
@@ -628,7 +627,7 @@ public class AspNetServerCodegen extends AbstractCSharpCodegen {
        super.patchProperty(enumRefs, model, property);

        if (!property.isContainer && (this.getNullableTypes().contains(property.dataType) || property.isEnum)) {
-            property.vendorExtensions.put(X_CSHARP_VALUE_TYPE, true);
+            property.vendorExtensions.put("x-csharp-value-type", true);
        }
    }

--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpClientCodegen.java
@@ -39,7 +39,6 @@ import java.util.function.Consumer;
 import java.util.stream.Collectors;

 import static org.apache.commons.lang3.StringUtils.isEmpty;
-import static org.openapitools.codegen.CodegenConstants.X_CSHARP_VALUE_TYPE;
 import static org.openapitools.codegen.utils.CamelizeOption.LOWERCASE_FIRST_LETTER;
 import static org.openapitools.codegen.utils.StringUtils.camelize;
 import static org.openapitools.codegen.utils.StringUtils.underscore;
@@ -410,7 +409,7 @@ public class CSharpClientCodegen extends AbstractCSharpCodegen {

        super.updateCodegenParameterEnumLegacy(parameter, model);

-        if (!parameter.required && parameter.vendorExtensions.get(X_CSHARP_VALUE_TYPE) != null) { //optional
+        if (!parameter.required && parameter.vendorExtensions.get("x-csharp-value-type") != null) { //optional
            parameter.dataType = parameter.dataType + "?";
        }
    }
@@ -437,7 +436,7 @@ public class CSharpClientCodegen extends AbstractCSharpCodegen {
        if (allDefinitions != null && codegenModel != null && codegenModel.parent != null) {
            final Schema<?> parentModel = allDefinitions.get(toModelName(codegenModel.parent));
            if (parentModel != null) {
-                final CodegenModel parentCodegenModel = getCodegenModel(codegenModel.parent, parentModel);
+                final CodegenModel parentCodegenModel = super.fromModel(codegenModel.parent, parentModel);
                if (codegenModel.hasEnums) {
                    codegenModel = this.reconcileInlineEnums(codegenModel, parentCodegenModel);
                }
@@ -1627,7 +1626,7 @@ public class CSharpClientCodegen extends AbstractCSharpCodegen {

        if (!GENERICHOST.equals(getLibrary())) {
            if (!property.isContainer && (this.getNullableTypes().contains(property.dataType) || property.isEnum)) {
-                property.vendorExtensions.put(X_CSHARP_VALUE_TYPE, true);
+                property.vendorExtensions.put("x-csharp-value-type", true);
            }
        }
    }
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpFunctionsServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpFunctionsServerCodegen.java
@@ -36,7 +36,6 @@ import java.net.URL;
 import java.util.*;

 import static java.util.UUID.randomUUID;
-import static org.openapitools.codegen.CodegenConstants.X_CSHARP_VALUE_TYPE;

 public class CSharpFunctionsServerCodegen extends AbstractCSharpCodegen {

@@ -288,7 +287,7 @@ public class CSharpFunctionsServerCodegen extends AbstractCSharpCodegen {
        super.patchProperty(enumRefs, model, property);

        if (!property.isContainer && (this.getNullableTypes().contains(property.dataType) || property.isEnum)) {
-            property.vendorExtensions.put(X_CSHARP_VALUE_TYPE, true);
+            property.vendorExtensions.put("x-csharp-value-type", true);
        }
    }

@@ -296,7 +295,7 @@ public class CSharpFunctionsServerCodegen extends AbstractCSharpCodegen {
    protected void updateCodegenParameterEnum(CodegenParameter parameter, CodegenModel model) {
        super.updateCodegenParameterEnumLegacy(parameter, model);

-        if (!parameter.required && parameter.vendorExtensions.get(X_CSHARP_VALUE_TYPE) != null) { //optional
+        if (!parameter.required && parameter.vendorExtensions.get("x-csharp-value-type") != null) { //optional
            parameter.dataType = parameter.dataType + "?";
        }
    }
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpReducedClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpReducedClientCodegen.java
@@ -37,7 +37,6 @@ import java.util.function.Consumer;
 import java.util.stream.Collectors;

 import static org.apache.commons.lang3.StringUtils.isEmpty;
-import static org.openapitools.codegen.CodegenConstants.X_CSHARP_VALUE_TYPE;
 import static org.openapitools.codegen.utils.CamelizeOption.LOWERCASE_FIRST_LETTER;
 import static org.openapitools.codegen.utils.StringUtils.camelize;
 import static org.openapitools.codegen.utils.StringUtils.underscore;
@@ -351,7 +350,7 @@ public class CSharpReducedClientCodegen extends AbstractCSharpCodegen {
        super.patchProperty(enumRefs, model, property);

        if (!property.isContainer && (this.getNullableTypes().contains(property.dataType) || property.isEnum)) {
-            property.vendorExtensions.put(X_CSHARP_VALUE_TYPE, true);
+            property.vendorExtensions.put("x-csharp-value-type", true);
        }
    }

@@ -359,7 +358,7 @@ public class CSharpReducedClientCodegen extends AbstractCSharpCodegen {
    protected void updateCodegenParameterEnum(CodegenParameter parameter, CodegenModel model) {
        super.updateCodegenParameterEnumLegacy(parameter, model);

-        if (!parameter.required && parameter.vendorExtensions.get(X_CSHARP_VALUE_TYPE) != null) { //optional
+        if (!parameter.required && parameter.vendorExtensions.get("x-csharp-value-type") != null) { //optional
            parameter.dataType = parameter.dataType + "?";
        }
    }
@@ -381,7 +380,7 @@ public class CSharpReducedClientCodegen extends AbstractCSharpCodegen {
        if (allDefinitions != null && codegenModel != null && codegenModel.parent != null) {
            final Schema parentModel = allDefinitions.get(toModelName(codegenModel.parent));
            if (parentModel != null) {
-                final CodegenModel parentCodegenModel = getCodegenModel(codegenModel.parent, parentModel);
+                final CodegenModel parentCodegenModel = super.fromModel(codegenModel.parent, parentModel);
                if (codegenModel.hasEnums) {
                    codegenModel = this.reconcileInlineEnums(codegenModel, parentCodegenModel);
                }
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ElixirClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ElixirClientCodegen.java
@@ -226,7 +226,6 @@ public class ElixirClientCodegen extends DefaultCodegen {
        typeMapping.put("date", "Date.t");
        typeMapping.put("date-time", "DateTime.t");
        // other
-        typeMapping.put("AnyType", "any()");
        typeMapping.put("ByteArray", "binary()");
        typeMapping.put("DateTime", "DateTime.t");
        typeMapping.put("UUID", "String.t");
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/GoServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/GoServerCodegen.java
@@ -410,7 +410,6 @@ public class GoServerCodegen extends AbstractGoCodegen {
    private void addConditionalImportInformation(OperationsMap operations) {
        boolean hasPathParams = false;
        boolean hasBodyParams = false;
-        boolean hasOptionalBodyParams = false;

        for (CodegenOperation op : operations.getOperations().getOperation()) {
            if (op.getHasPathParams()) {
@@ -419,14 +418,10 @@ public class GoServerCodegen extends AbstractGoCodegen {
            if (op.getHasBodyParam()) {
                hasBodyParams = true;
            }
-            if (op.getHasOptionalBodyParam()) {
-                hasOptionalBodyParams = true;
-            }
        }

        additionalProperties.put("hasPathParams", hasPathParams);
        additionalProperties.put("hasBodyParams", hasBodyParams);
-        additionalProperties.put("hasOptionalBodyParams", hasOptionalBodyParams);
    }


--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinClientCodegen.java
@@ -996,7 +996,6 @@ public class KotlinClientCodegen extends AbstractKotlinCodegen {
        }
        return objs;
    }
-
    private Stream<List<CodegenProperty>> getAllVarProperties(CodegenModel model) {
        return Stream.of(model.vars, model.allVars, model.optionalVars, model.requiredVars, model.readOnlyVars, model.readWriteVars);
    }
@@ -1114,27 +1113,6 @@ public class KotlinClientCodegen extends AbstractKotlinCodegen {
        return false;
    }

-    @Override
-    public void postProcessParameter(CodegenParameter parameter) {
-        super.postProcessParameter(parameter);
-        adjustEnumRefDefault(parameter);
-    }
-
-    /**
-     * Properly set the default value for enum (reference).
-     *
-     * @param param codegen parameter
-     */
-    private void adjustEnumRefDefault(CodegenParameter param) {
-        if (StringUtils.isEmpty(param.defaultValue) || !(param.isEnum || param.isEnumRef)) {
-            return;
-        }
-
-        String type = StringUtils.defaultIfEmpty(param.datatypeWithEnum, param.dataType);
-        param.enumDefaultValue = toEnumVarName(param.defaultValue, type);
-        param.defaultValue = type + "." + param.enumDefaultValue;
-    }
-
    @Override
    public void postProcess() {
        System.out.println("################################################################################");
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
@@ -157,8 +157,7 @@ public class PythonClientCodegen extends AbstractPythonCodegen implements Codege
        supportedLibraries.put("urllib3", "urllib3-based client");
        supportedLibraries.put("asyncio", "asyncio-based client");
        supportedLibraries.put("tornado", "tornado-based client (deprecated)");
-        supportedLibraries.put("httpx", "httpx-based client");
-        CliOption libraryOption = new CliOption(CodegenConstants.LIBRARY, "library template (sub-template) to use: asyncio, tornado (deprecated), urllib3, httpx");
+        CliOption libraryOption = new CliOption(CodegenConstants.LIBRARY, "library template (sub-template) to use: asyncio, tornado (deprecated), urllib3");
        libraryOption.setDefault(DEFAULT_LIBRARY);
        cliOptions.add(libraryOption);
        setLibrary(DEFAULT_LIBRARY);
@@ -331,15 +330,10 @@ public class PythonClientCodegen extends AbstractPythonCodegen implements Codege

        if ("asyncio".equals(getLibrary())) {
            supportingFiles.add(new SupportingFile("asyncio/rest.mustache", packagePath(), "rest.py"));
-            additionalProperties.put("async", "true");
            additionalProperties.put("asyncio", "true");
        } else if ("tornado".equals(getLibrary())) {
            supportingFiles.add(new SupportingFile("tornado/rest.mustache", packagePath(), "rest.py"));
            additionalProperties.put("tornado", "true");
-        } else if ("httpx".equals(getLibrary())) {
-            supportingFiles.add(new SupportingFile("httpx/rest.mustache", packagePath(), "rest.py"));
-            additionalProperties.put("async", "true");
-            additionalProperties.put("httpx", "true");
        } else {
            supportingFiles.add(new SupportingFile("rest.mustache", packagePath(), "rest.py"));
        }
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RustAxumServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RustAxumServerCodegen.java
@@ -99,18 +99,6 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
    public RustAxumServerCodegen() {
        super();

-        // The `#[validate(nested)]` macro relies on an internal field named `errors` to accumulate validation results. Therefore, defining a struct like this will fail:
-        //
-        // ```rust
-        // struct A {
-        //   #[validate(nested)]
-        //   errors: B,
-        // }
-        // ```
-        //
-        // To avoid this, either rename the field to something other than "errors", or reserve it.
-        this.reservedWords.add("errors");
-
        modifyFeatureSet(features -> features
                .wireFormatFeatures(EnumSet.of(
                        WireFormatFeature.JSON,
@@ -124,9 +112,7 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
                .schemaSupportFeatures(EnumSet.of(
                        SchemaSupportFeature.Simple,
                        SchemaSupportFeature.Composite,
-                        SchemaSupportFeature.oneOf,
-                        SchemaSupportFeature.anyOf,
-                        SchemaSupportFeature.allOf
+                        SchemaSupportFeature.oneOf
                ))
                .excludeGlobalFeatures(
                        GlobalFeature.Info,
@@ -647,163 +633,105 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
        return op;
    }

-    private void postProcessPolymorphism(final List<ModelMap> allModels) {
-        final HashMap<String, List<String>> discriminatorsForModel = new HashMap<>();
+    private void postProcessOneOfModels(List<ModelMap> allModels) {
+        final HashMap<String, List<String>> oneOfMapDiscriminator = new HashMap<>();

-        for (final ModelMap mo : allModels) {
+        for (ModelMap mo : allModels) {
            final CodegenModel cm = mo.getModel();

            final CodegenComposedSchemas cs = cm.getComposedSchemas();
            if (cs != null) {
                final List<CodegenProperty> csOneOf = cs.getOneOf();
+
                if (csOneOf != null) {
-                    processPolymorphismDataType(csOneOf);
+                    for (CodegenProperty model : csOneOf) {
+                        // Generate a valid name for the enum variant.
+                        // Mainly needed for primitive types.
+
+                        model.datatypeWithEnum = camelize(model.dataType.replaceAll("(?:\\w+::)+(\\w+)", "$1")
+                                .replace("<", "Of").replace(">", ""));
+
+                        // Primitive type is not properly set, this overrides it to guarantee adequate model generation.
+                        if (!model.getDataType().matches(String.format(Locale.ROOT, ".*::%s", model.getDatatypeWithEnum()))) {
+                            model.isPrimitiveType = true;
+                        }
+                    }
+
                    cs.setOneOf(csOneOf);
                    cm.setComposedSchemas(cs);
                }
-
-                final List<CodegenProperty> csAnyOf = cs.getAnyOf();
-                if (csAnyOf != null) {
-                    processPolymorphismDataType(csAnyOf);
-                    cs.setAnyOf(csAnyOf);
-                    cm.setComposedSchemas(cs);
-                }
            }

            if (cm.discriminator != null) {
-                for (final String model : cm.oneOf) {
-                    final List<String> discriminators = discriminatorsForModel.getOrDefault(model, new ArrayList<>());
+                for (String model : cm.oneOf) {
+                    List<String> discriminators = oneOfMapDiscriminator.getOrDefault(model, new ArrayList<>());
                    discriminators.add(cm.discriminator.getPropertyName());
-                    discriminatorsForModel.put(model, discriminators);
-                }
-
-                for (final String model : cm.anyOf) {
-                    final List<String> discriminators = discriminatorsForModel.getOrDefault(model, new ArrayList<>());
-                    discriminators.add(cm.discriminator.getPropertyName());
-                    discriminatorsForModel.put(model, discriminators);
+                    oneOfMapDiscriminator.put(model, discriminators);
                }
            }
        }

-        final var blocking = new HashSet<String>();
        for (ModelMap mo : allModels) {
            final CodegenModel cm = mo.getModel();

-            final List<String> discriminators = discriminatorsForModel.get(cm.getSchemaName());
-            if (discriminators != null) {
-                // If the discriminator field is not a defined attribute in the variant structure, create it.
-                if (!discriminating(discriminators, cm)) {
-                    final String discriminator = discriminators.get(0);
+            for (CodegenProperty var : cm.vars) {
+                var.isDiscriminator = false;
+            }

-                    CodegenProperty property = new CodegenProperty();
+            final List<String> discriminatorsForModel = oneOfMapDiscriminator.get(cm.getSchemaName());

-                    // Static attributes
-                    // Only strings are supported by serde for tag field types, so it's the only one we'll deal with
-                    property.openApiType = "string";
-                    property.complexType = "string";
-                    property.dataType = "String";
-                    property.datatypeWithEnum = "String";
-                    property.baseType = "string";
-                    property.required = true;
-                    property.isPrimitiveType = true;
-                    property.isString = true;
-                    property.isDiscriminator = true;
+            if (discriminatorsForModel != null) {
+                for (String discriminator : discriminatorsForModel) {
+                    boolean hasDiscriminatorDefined = false;

-                    // Attributes based on the discriminator value
-                    property.baseName = discriminator;
-                    property.name = discriminator;
-                    property.nameInCamelCase = camelize(discriminator);
-                    property.nameInPascalCase = property.nameInCamelCase.substring(0, 1).toUpperCase(Locale.ROOT) + property.nameInCamelCase.substring(1);
-                    property.nameInSnakeCase = underscore(discriminator).toUpperCase(Locale.ROOT);
-                    property.getter = String.format(Locale.ROOT, "get%s", property.nameInPascalCase);
-                    property.setter = String.format(Locale.ROOT, "set%s", property.nameInPascalCase);
-                    property.defaultValueWithParam = String.format(Locale.ROOT, " = data.%s;", property.name);
+                    for (CodegenProperty var : cm.vars) {
+                        if (var.baseName.equals(discriminator)) {
+                            var.isDiscriminator = true;
+                            hasDiscriminatorDefined = true;
+                            break;
+                        }
+                    }

-                    // Attributes based on the model name
-                    property.defaultValue = String.format(Locale.ROOT, "r#\"%s\"#.to_string()", cm.getSchemaName());
-                    property.jsonSchema = String.format(Locale.ROOT, "{ \"default\":\"%s\"; \"type\":\"string\" }", cm.getSchemaName());
+                    // If the discriminator field is not a defined attribute in the variant structure, create it.
+                    if (!hasDiscriminatorDefined) {
+                        CodegenProperty property = new CodegenProperty();

-                    cm.vars.add(property);
+                        // Static attributes
+                        // Only strings are supported by serde for tag field types, so it's the only one we'll deal with
+                        property.openApiType = "string";
+                        property.complexType = "string";
+                        property.dataType = "String";
+                        property.datatypeWithEnum = "String";
+                        property.baseType = "string";
+                        property.required = true;
+                        property.isPrimitiveType = true;
+                        property.isString = true;
+                        property.isDiscriminator = true;
+
+                        // Attributes based on the discriminator value
+                        property.baseName = discriminator;
+                        property.name = discriminator;
+                        property.nameInCamelCase = camelize(discriminator);
+                        property.nameInPascalCase = property.nameInCamelCase.substring(0, 1).toUpperCase(Locale.ROOT) + property.nameInCamelCase.substring(1);
+                        property.nameInSnakeCase = underscore(discriminator).toUpperCase(Locale.ROOT);
+                        property.getter = String.format(Locale.ROOT, "get%s", property.nameInPascalCase);
+                        property.setter = String.format(Locale.ROOT, "set%s", property.nameInPascalCase);
+                        property.defaultValueWithParam = String.format(Locale.ROOT, " = data.%s;", property.name);
+
+                        // Attributes based on the model name
+                        property.defaultValue = String.format(Locale.ROOT, "r#\"%s\"#.to_string()", cm.getSchemaName());
+                        property.jsonSchema = String.format(Locale.ROOT, "{ \"default\":\"%s\"; \"type\":\"string\" }", cm.getSchemaName());
+
+                        cm.vars.add(property);
+                    }
                }
            }
-
-            if (cm.vars.stream().noneMatch(v -> v.isDiscriminator)) {
-                blocking.add(cm.getSchemaName());
-            }
-        }
-
-        for (final ModelMap mo : allModels) {
-            final CodegenModel cm = mo.getModel();
-            if (cm.discriminator != null) {
-                // if no discriminator in any of variant -> disable discriminator
-                if (cm.oneOf.stream().anyMatch(blocking::contains) || cm.anyOf.stream().anyMatch(blocking::contains)) {
-                    cm.discriminator = null;
-                }
-            }
-        }
-    }
-
-    private static boolean discriminating(final List<String> discriminatorsForModel, final CodegenModel cm) {
-        resetDiscriminatorProperty(cm);
-
-        // Discriminator will be presented as enum tag -> One and only one tag is allowed
-        int countString = 0;
-        int countNonString = 0;
-        for (final CodegenProperty var : cm.vars) {
-            if (discriminatorsForModel.stream().anyMatch(discriminator -> var.baseName.equals(discriminator) || var.name.equals(discriminator))) {
-                if (var.isString) {
-                    var.isDiscriminator = true;
-                    ++countString;
-                } else
-                    ++countNonString;
-            }
-        }
-
-        if (countString > 0 && (countNonString > 0 || countString > 1)) {
-            // at least two discriminator, one of them is string -> should not render serde tag
-            resetDiscriminatorProperty(cm);
-        }
-
-        return countNonString > 0 || countString > 0;
-    }
-
-    private static void resetDiscriminatorProperty(final CodegenModel cm) {
-        for (final CodegenProperty var : cm.vars) {
-            var.isDiscriminator = false;
-        }
-    }
-
-    private static void processPolymorphismDataType(final List<CodegenProperty> cp) {
-        final HashSet<String> dedupDataTypeWithEnum = new HashSet<>();
-        final HashMap<String, Integer> dedupDataType = new HashMap<>();
-
-        int idx = 0;
-        for (CodegenProperty model : cp) {
-            // Generate a valid name for the enum variant.
-            // Mainly needed for primitive types.
-            model.datatypeWithEnum = camelize(model.dataType.replaceAll("(?:\\w+::)+(\\w+)", "$1")
-                    .replace("<", "Of").replace(">", "")).replace(" ", "").replace(",", "");
-            if (!dedupDataTypeWithEnum.add(model.datatypeWithEnum)) {
-                model.datatypeWithEnum += ++idx;
-            }
-
-            dedupDataType.put(model.getDataType(), dedupDataType.getOrDefault(model.getDataType(), 0) + 1);
-
-            if (!model.getDataType().matches(String.format(Locale.ROOT, ".*::%s", model.getDatatypeWithEnum()))) {
-                model.isPrimitiveType = true;
-            }
-        }
-
-        for (CodegenProperty model : cp) {
-            if (dedupDataType.get(model.getDataType()) == 1) {
-                model.vendorExtensions.put("x-from-trait", true);
-            }
        }
    }

    @Override
    public OperationsMap postProcessOperationsWithModels(final OperationsMap operationsMap, List<ModelMap> allModels) {
-        postProcessPolymorphism(allModels);
+        postProcessOneOfModels(allModels);

        final OperationMap operations = operationsMap.getOperations();
        operations.put("classnamePascalCase", camelize(operations.getClassname()));
@@ -973,7 +901,7 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
    // restore things to sensible values.
    @Override
    public CodegenParameter fromRequestBody(RequestBody body, Set<String> imports, String bodyParameterName) {
-        final var original_schema = ModelUtils.getSchemaFromRequestBody(body);
+        final Schema original_schema = ModelUtils.getSchemaFromRequestBody(body);
        CodegenParameter codegenParameter = super.fromRequestBody(body, imports, bodyParameterName);

        if (StringUtils.isNotBlank(original_schema.get$ref())) {
@@ -992,10 +920,10 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
    @Override
    public String toInstantiationType(final Schema p) {
        if (ModelUtils.isArraySchema(p)) {
-            final var inner = ModelUtils.getSchemaItems(p);
+            final Schema inner = ModelUtils.getSchemaItems(p);
            return instantiationTypes.get("array") + "<" + getSchemaType(inner) + ">";
        } else if (ModelUtils.isMapSchema(p)) {
-            final var inner = ModelUtils.getAdditionalProperties(p);
+            final Schema inner = ModelUtils.getAdditionalProperties(p);
            return instantiationTypes.get("map") + "<" + typeMapping.get("string") + ", " + getSchemaType(inner) + ">";
        } else {
            return null;
@@ -1024,10 +952,6 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
    @Override
    public String toDefaultValue(final Schema p) {
        String defaultValue = null;
-
-        if (ModelUtils.isEnumSchema(p))
-            return null;
-
        if ((ModelUtils.isNullable(p)) && (p.getDefault() != null) && ("null".equalsIgnoreCase(p.getDefault().toString())))
            return "Nullable::Null";

@@ -1041,9 +965,6 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
        } else if (ModelUtils.isNumberSchema(p)) {
            if (p.getDefault() != null) {
                defaultValue = p.getDefault().toString();
-                if (!defaultValue.contains(".")) {
-                    defaultValue += ".0";
-                }
            }
        } else if (ModelUtils.isIntegerSchema(p)) {
            if (p.getDefault() != null) {
@@ -1160,7 +1081,7 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
        String cmd = System.getenv("RUST_POST_PROCESS_FILE");
        if (StringUtils.isEmpty(cmd)) {
            cmd = "rustfmt";
-            command = new String[]{cmd, "--edition", "2024", fileName};
+            command = new String[]{cmd, "--edition", "2021", fileName};
        } else {
            command = new String[]{cmd, fileName};
        }
@@ -1172,7 +1093,7 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
    }

    @Override
-    protected void updateParameterForString(CodegenParameter codegenParameter, final Schema parameterSchema) {
+    protected void updateParameterForString(CodegenParameter codegenParameter, Schema parameterSchema) {
        if (ModelUtils.isEmailSchema(parameterSchema)) {
            codegenParameter.isEmail = true;
        } else if (ModelUtils.isUUIDSchema(parameterSchema)) {
@@ -1199,7 +1120,7 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
            codegenParameter.isDecimal = true;
            codegenParameter.isPrimitiveType = true;
        }
-        if (codegenParameter.isString) {
+        if (Boolean.TRUE.equals(codegenParameter.isString)) {
            codegenParameter.isPrimitiveType = true;
        }
    }
@@ -1231,16 +1152,6 @@ public class RustAxumServerCodegen extends AbstractRustCodegen implements Codege
        return null;
    }

-    @Override
-    public String toVarName(String name) {
-        final var varName = super.toVarName(name);
-
-        if (varName.startsWith("r#"))
-            return "r_" + varName.substring(2);
-
-        return varName;
-    }
-
    static class PathMethodOperations {
        public String path;
        public ArrayList<MethodOperation> methodOperations;
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RustClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RustClientCodegen.java
@@ -58,7 +58,6 @@ public class RustClientCodegen extends AbstractRustCodegen implements CodegenCon
    @Setter private boolean preferUnsignedInt = false;
    @Setter private boolean bestFitInt = false;
    @Setter private boolean avoidBoxedModels = false;
-    private List<String> reqwestDefaultFeatures = Arrays.asList("native-tls");

    public static final String PACKAGE_NAME = "packageName";
    public static final String EXTERN_CRATE_NAME = "externCrateName";
@@ -78,7 +77,6 @@ public class RustClientCodegen extends AbstractRustCodegen implements CodegenCon
    public static final String TOP_LEVEL_API_CLIENT = "topLevelApiClient";
    public static final String MOCKALL = "mockall";
    public static final String BON_BUILDER = "useBonBuilder";
-    public static final String REQWEST_DEFAULT_FEATURES = "reqwestDefaultFeatures";

    @Setter protected String packageName = "openapi";
    @Setter protected String packageVersion = "1.0.0";
@@ -229,8 +227,6 @@ public class RustClientCodegen extends AbstractRustCodegen implements CodegenCon
                .defaultValue(Boolean.FALSE.toString()));
        cliOptions.add(new CliOption(BON_BUILDER, "Use the bon crate for building parameter types. This option is for the 'reqwest-trait' library only", SchemaTypeUtil.BOOLEAN_TYPE)
                .defaultValue(Boolean.FALSE.toString()));
-        cliOptions.add(new CliOption(REQWEST_DEFAULT_FEATURES, "Default features for the reqwest dependency (comma-separated). Use empty for no defaults. This option is for 'reqwest' and 'reqwest-trait' library only.")
-                .defaultValue("native-tls"));

        supportedLibraries.put(HYPER_LIBRARY, "HTTP client: Hyper (v1.x).");
        supportedLibraries.put(HYPER0X_LIBRARY, "HTTP client: Hyper (v0.x).");
@@ -311,6 +307,69 @@ public class RustClientCodegen extends AbstractRustCodegen implements CodegenCon
            mdl.getComposedSchemas().setOneOf(newOneOfs);
        }

+        // Handle anyOf schemas similarly to oneOf
+        // This is pragmatic since Rust's untagged enum will deserialize to the first matching variant
+        if (mdl.getComposedSchemas() != null && mdl.getComposedSchemas().getAnyOf() != null
+                && !mdl.getComposedSchemas().getAnyOf().isEmpty()) {
+
+            List<CodegenProperty> newAnyOfs = mdl.getComposedSchemas().getAnyOf().stream()
+                    .map(CodegenProperty::clone)
+                    .collect(Collectors.toList());
+            List<Schema> schemas = ModelUtils.getInterfaces(model);
+            if (newAnyOfs.size() != schemas.size()) {
+                // For safety reasons, this should never happen unless there is an error in the code
+                throw new RuntimeException("anyOf size does not match the model");
+            }
+
+            Map<String, String> refsMapping = Optional.ofNullable(model.getDiscriminator())
+                    .map(Discriminator::getMapping).orElse(Collections.emptyMap());
+
+            // Reverse mapped references to use as baseName for anyOf, but different keys may point to the same $ref.
+            // Thus, we group them by the value
+            Map<String, List<String>> mappedNamesByRef = refsMapping.entrySet().stream()
+                    .collect(Collectors.groupingBy(Map.Entry::getValue,
+                            Collectors.mapping(Map.Entry::getKey, Collectors.toList())
+                    ));
+
+            for (int i = 0; i < newAnyOfs.size(); i++) {
+                CodegenProperty anyOf = newAnyOfs.get(i);
+                Schema schema = schemas.get(i);
+
+                if (mappedNamesByRef.containsKey(schema.get$ref())) {
+                    // prefer mapped names if present
+                    // remove mapping not in order not to reuse for the next occurrence of the ref
+                    List<String> names = mappedNamesByRef.get(schema.get$ref());
+                    String mappedName = names.remove(0);
+                    anyOf.setBaseName(mappedName);
+                    anyOf.setName(toModelName(mappedName));
+                } else if (!org.apache.commons.lang3.StringUtils.isEmpty(schema.get$ref())) {
+                    // use $ref if it's reference
+                    String refName = ModelUtils.getSimpleRef(schema.get$ref());
+                    if (refName != null) {
+                        String modelName = toModelName(refName);
+                        anyOf.setName(modelName);
+                        anyOf.setBaseName(refName);
+                    }
+                } else if (anyOf.isArray) {
+                    // If the type is an array, extend the name with the inner type to prevent name collisions
+                    // in case multiple arrays with different types are defined. If the user has manually specified
+                    // a name, use that name instead.
+                    String collectionWithTypeName = toModelName(schema.getType()) + anyOf.containerTypeMapped + anyOf.items.dataType;
+                    String anyOfName = Optional.ofNullable(schema.getTitle()).orElse(collectionWithTypeName);
+                    anyOf.setName(anyOfName);
+                }
+                else {
+                    // In-placed type (primitive), because there is no mapping or ref for it.
+                    // use camelized `title` if present, otherwise use `type`
+                    String anyOfName = Optional.ofNullable(schema.getTitle()).orElseGet(schema::getType);
+                    anyOf.setName(toModelName(anyOfName));
+                }
+            }
+
+            // Set anyOf as oneOf for template processing since we want the same output
+            mdl.getComposedSchemas().setOneOf(newAnyOfs);
+        }
+
        return mdl;
    }

@@ -435,21 +494,6 @@ public class RustClientCodegen extends AbstractRustCodegen implements CodegenCon
        }
        writePropertyBack(AVOID_BOXED_MODELS, getAvoidBoxedModels());

-        if (additionalProperties.containsKey(REQWEST_DEFAULT_FEATURES)) {
-            Object value = additionalProperties.get(REQWEST_DEFAULT_FEATURES);
-            if (value instanceof List) {
-                reqwestDefaultFeatures = (List<String>) value;
-            } else if (value instanceof String) {
-                String str = (String) value;
-                if (str.isEmpty()) {
-                    reqwestDefaultFeatures = new ArrayList<>();
-                } else {
-                    reqwestDefaultFeatures = Arrays.asList(str.split(",\\s*"));
-                }
-            }
-        }
-        additionalProperties.put(REQWEST_DEFAULT_FEATURES, reqwestDefaultFeatures);
-
        additionalProperties.put(CodegenConstants.PACKAGE_NAME, packageName);
        additionalProperties.put(CodegenConstants.PACKAGE_VERSION, packageVersion);
        additionalProperties.put(EXTERN_CRATE_NAME, getExternCrateName());
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/SpringCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/SpringCodegen.java
@@ -100,7 +100,6 @@ public class SpringCodegen extends AbstractJavaCodegen
    public static final String OPTIONAL_ACCEPT_NULLABLE = "optionalAcceptNullable";
    public static final String USE_SPRING_BUILT_IN_VALIDATION = "useSpringBuiltInValidation";
    public static final String USE_DEDUCTION_FOR_ONE_OF_INTERFACES = "useDeductionForOneOfInterfaces";
-    public static final String SPRING_API_VERSION = "springApiVersion";

    @Getter
    public enum RequestMappingMode {
@@ -287,7 +286,6 @@ public class SpringCodegen extends AbstractJavaCodegen
                optionalAcceptNullable));

        cliOptions.add(CliOption.newBoolean(USE_DEDUCTION_FOR_ONE_OF_INTERFACES, "whether to use deduction for generated oneOf interfaces", useDeductionForOneOfInterfaces));
-        cliOptions.add(CliOption.newString(SPRING_API_VERSION, "Value for 'version' attribute in @RequestMapping (for Spring 7 and above)."));
        supportedLibraries.put(SPRING_BOOT, "Spring-boot Server application.");
        supportedLibraries.put(SPRING_CLOUD_LIBRARY,
                "Spring-Cloud-Feign client with Spring-Boot auto-configured settings.");
@@ -857,8 +855,6 @@ public class SpringCodegen extends AbstractJavaCodegen
    }

    private void prepareVersioningParameters(List<CodegenOperation> operations) {
-        Object apiVersion = additionalProperties.get(SPRING_API_VERSION);
-        boolean hasApiVersion = apiVersion != null;
        for (CodegenOperation operation : operations) {
            if (operation.getHasHeaderParams()) {
                List<CodegenParameter> versionParams = operation.headerParams.stream()
@@ -881,9 +877,6 @@ public class SpringCodegen extends AbstractJavaCodegen
                operation.hasVersionQueryParams = !versionParams.isEmpty();
                operation.vendorExtensions.put("versionQueryParamsList", versionParams);
            }
-            if (hasApiVersion) {
-                operation.vendorExtensions.putIfAbsent(VendorExtension.X_SPRING_API_VERSION.getName(), apiVersion);
-            }
        }
    }

@@ -988,11 +981,6 @@ public class SpringCodegen extends AbstractJavaCodegen
            codegenModel.imports.remove("ApiModel");
        }

-        if (getAnnotationLibrary() != AnnotationLibrary.SWAGGER2) {
-            // remove swagger imports
-            codegenModel.imports.remove("Schema");
-        }
-
        return codegenModel;
    }

@@ -1217,7 +1205,6 @@ public class SpringCodegen extends AbstractJavaCodegen
        extensions.add(VendorExtension.X_SPRING_PAGINATED);
        extensions.add(VendorExtension.X_VERSION_PARAM);
        extensions.add(VendorExtension.X_PATTERN_MESSAGE);
-        extensions.add(VendorExtension.X_SPRING_API_VERSION);
        return extensions;
    }
 }
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptClientCodegen.java
@@ -100,8 +100,6 @@ public class TypeScriptClientCodegen extends AbstractTypeScriptClientCodegen imp
    private final DateTimeFormatter iso8601Date = DateTimeFormatter.ISO_DATE;
    private final DateTimeFormatter iso8601DateTime = DateTimeFormatter.ISO_DATE_TIME;

-    protected String apiDocPath = "docs/";
-
    public TypeScriptClientCodegen() {
        super();

@@ -402,11 +400,6 @@ public class TypeScriptClientCodegen extends AbstractTypeScriptClientCodegen imp
        return objs;
    }

-    @Override
-    public String apiDocFileFolder() {
-        return (outputFolder + "/" + apiDocPath).replace('/', File.separatorChar);
-    }
-
    private List<Map<String, String>> toTsImports(CodegenModel cm, Set<String> imports) {
        List<Map<String, String>> tsImports = new ArrayList<>();
        for (String im : imports) {
@@ -439,8 +432,6 @@ public class TypeScriptClientCodegen extends AbstractTypeScriptClientCodegen imp
        apiPackage = this.apiPackage + ".apis";
        testPackage = this.testPackage + ".tests";

-        additionalProperties.put("apiDocPath", apiDocPath);
-
        additionalProperties.putIfAbsent(FRAMEWORK_SWITCH, FRAMEWORKS[0]);
        supportingFiles.add(new SupportingFile("index.mustache", "index.ts"));

--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptFetchClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptFetchClientCodegen.java
@@ -1499,16 +1499,11 @@ public class TypeScriptFetchClientCodegen extends AbstractTypeScriptClientCodege
        public Set<String> oneOfArrays = new TreeSet<>();
        @Getter @Setter
        public Set<CodegenProperty> oneOfPrimitives = new HashSet<>();
-        @Getter @Setter
-        public CodegenDiscriminator.MappedModel selfReferencingDiscriminatorMapping;
-      
+
        public boolean isEntity; // Is a model containing an "id" property marked as isUniqueId
        public String returnPassthrough;
        public boolean hasReturnPassthroughVoid;
-        
-        public boolean hasSelfReferencingDiscriminatorMapping(){
-            return selfReferencingDiscriminatorMapping != null;
-        }
+
        public boolean isDateType() {
            return isDate && "Date".equals(dataType);
        }
@@ -1602,17 +1597,6 @@ public class TypeScriptFetchClientCodegen extends AbstractTypeScriptClientCodege
            this.setAdditionalProperties(cm.getAdditionalProperties());
            this.setIsModel(cm.getIsModel());
            this.setComposedSchemas(cm.getComposedSchemas());
-            if (this.discriminator != null) {
-                Set<CodegenDiscriminator.MappedModel> mappedModels = this.discriminator.getMappedModels();
-                for(CodegenDiscriminator.MappedModel mappedModel : mappedModels) {
-                    if(mappedModel.getModelName().equals(cm.classname)) {
-                        this.selfReferencingDiscriminatorMapping = mappedModel;
-                    }
-                }
-                if(this.selfReferencingDiscriminatorMapping != null) {
-                    this.discriminator.getMappedModels().remove(this.selfReferencingDiscriminatorMapping);
-                }
-            }
        }

        @Override
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/utils/ModelUtils.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/utils/ModelUtils.java
@@ -56,7 +56,6 @@ import java.util.*;
 import java.util.Map.Entry;
 import java.util.stream.Collectors;

-import static org.openapitools.codegen.CodegenConstants.X_PARENT;
 import static org.openapitools.codegen.utils.OnceLogger.once;

 public class ModelUtils {
@@ -1717,7 +1716,7 @@ public class ModelUtils {
            return false;
        }

-        Object xParent = schema.getExtensions().get(X_PARENT);
+        Object xParent = schema.getExtensions().get("x-parent");
        if (xParent == null) {
            return false;
        } else if (xParent instanceof Boolean) {
--- a/modules/openapi-generator/src/main/resources/C-libcurl/api-body.mustache
+++ b/modules/openapi-generator/src/main/resources/C-libcurl/api-body.mustache
@@ -1,12 +1,10 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <ctype.h>
-
 #include "{{classname}}.h"

 #define MAX_NUMBER_LENGTH 16
 #define MAX_BUFFER_LENGTH 4096
-#define MAX_NUMBER_LENGTH_LONG 21

 {{#operations}}
 {{#operation}}
@@ -231,16 +229,10 @@ end:
    // query parameters
    {{^isArray}}
    char *keyQuery_{{{paramName}}} = NULL;
-    {{#isPrimitiveType}}{{#isNumber}}{{{dataType}}}{{/isNumber}}{{#isLong}}char *{{/isLong}}{{#isInteger}}char *{{/isInteger}}{{#isDouble}}char *{{/isDouble}}{{#isFloat}}char *{{/isFloat}}{{#isBoolean}}char *{{/isBoolean}}{{#isEnum}}{{#isString}}{{projectName}}_{{operationId}}_{{baseName}}_e{{/isString}}{{/isEnum}}{{^isEnum}}{{#isString}}{{{dataType}}} *{{/isString}}{{/isEnum}}{{#isByteArray}}{{{dataType}}} *{{/isByteArray}}{{#isDate}}{{{dataType}}}{{/isDate}}{{#isDateTime}}{{{dataType}}}{{/isDateTime}}{{#isFile}}{{{dataType}}}{{/isFile}}{{/isPrimitiveType}}{{^isPrimitiveType}}{{#isModel}}{{#isEnum}}{{datatypeWithEnum}}_e{{/isEnum}}{{^isEnum}}{{{dataType}}}_t *{{/isEnum}}{{/isModel}}{{^isModel}}{{#isEnum}}{{datatypeWithEnum}}_e{{/isEnum}}{{/isModel}}{{#isUuid}}{{dataType}} *{{/isUuid}}{{#isEmail}}{{dataType}}{{/isEmail}}{{/isPrimitiveType}} valueQuery_{{{paramName}}} {{#isString}}{{^isEnum}}= NULL{{/isEnum}}{{/isString}}{{#isInteger}}= NULL{{/isInteger}}{{#isBoolean}}= NULL{{/isBoolean}}{{#isDouble}}= NULL{{/isDouble}}{{#isFloat}}= NULL{{/isFloat}};
+    {{#isPrimitiveType}}{{#isNumber}}{{{dataType}}}{{/isNumber}}{{#isLong}}{{{dataType}}}{{/isLong}}{{#isInteger}}char *{{/isInteger}}{{#isDouble}}{{{dataType}}}{{/isDouble}}{{#isFloat}}{{{dataType}}}{{/isFloat}}{{#isBoolean}}char *{{/isBoolean}}{{#isEnum}}{{#isString}}{{projectName}}_{{operationId}}_{{baseName}}_e{{/isString}}{{/isEnum}}{{^isEnum}}{{#isString}}{{{dataType}}} *{{/isString}}{{/isEnum}}{{#isByteArray}}{{{dataType}}} *{{/isByteArray}}{{#isDate}}{{{dataType}}}{{/isDate}}{{#isDateTime}}{{{dataType}}}{{/isDateTime}}{{#isFile}}{{{dataType}}}{{/isFile}}{{/isPrimitiveType}}{{^isPrimitiveType}}{{#isModel}}{{#isEnum}}{{datatypeWithEnum}}_e{{/isEnum}}{{^isEnum}}{{{dataType}}}_t *{{/isEnum}}{{/isModel}}{{^isModel}}{{#isEnum}}{{datatypeWithEnum}}_e{{/isEnum}}{{/isModel}}{{#isUuid}}{{dataType}} *{{/isUuid}}{{#isEmail}}{{dataType}}{{/isEmail}}{{/isPrimitiveType}} valueQuery_{{{paramName}}} {{#isString}}{{^isEnum}}= NULL{{/isEnum}}{{/isString}}{{#isInteger}}= NULL{{/isInteger}}{{#isBoolean}}= NULL{{/isBoolean}};
    keyValuePair_t *keyPairQuery_{{paramName}} = 0;
    {{/isArray}}
-    {{^isLong}}
-    {{^isFloat}}
-    {{^isDouble}}
    if ({{paramName}})
-    {{/isDouble}}
-    {{/isFloat}}
-    {{/isLong}}
    {
        {{#isArray}}
        list_addElement(localVarQueryParameters,{{paramName}});
@@ -251,43 +243,17 @@ end:
        valueQuery_{{{paramName}}} = calloc(1,MAX_NUMBER_LENGTH);
        snprintf(valueQuery_{{{paramName}}}, MAX_NUMBER_LENGTH, "%d", *{{{paramName}}});
        {{/isInteger}}
-        {{#isFloat}}
-        int s = snprintf(NULL, 0, "%.7e", {{{paramName}}});
-        if (s >= 0)
-        {
-            valueQuery_{{{paramName}}} = calloc(1,s+1);
-            snprintf(valueQuery_{{{paramName}}}, s+1, "%.7e", {{{paramName}}});
-        }
-        {{/isFloat}}
-        {{#isDouble}}
-        int s = snprintf(NULL, 0, "%.16e", {{{paramName}}});
-        if (s >= 0)
-        {
-            valueQuery_{{{paramName}}} = calloc(1,s+1);
-            snprintf(valueQuery_{{{paramName}}}, s+1, "%.16e", {{{paramName}}});
-        }
-        {{/isDouble}}
-        {{#isLong}}
-        valueQuery_{{{paramName}}} = calloc(1,MAX_NUMBER_LENGTH_LONG);
-        snprintf(valueQuery_{{{paramName}}}, MAX_NUMBER_LENGTH_LONG, "%d", {{{paramName}}});
-        {{/isLong}}
        {{#isBoolean}}
        valueQuery_{{{paramName}}} = calloc(1,MAX_NUMBER_LENGTH);
        snprintf(valueQuery_{{{paramName}}}, MAX_NUMBER_LENGTH, "%d", *{{{paramName}}});
        {{/isBoolean}}
        {{^isInteger}}
        {{^isBoolean}}
-        {{^isFloat}}
-        {{^isDouble}}
-        {{^isLong}}
        valueQuery_{{{paramName}}} = {{#isString}}{{^isEnum}}strdup({{/isEnum}}{{/isString}}({{{paramName}}}){{#isString}}{{^isEnum}}){{/isEnum}}{{/isString}};
-        {{/isLong}}
-        {{/isDouble}}
-        {{/isFloat}}
        {{/isBoolean}}
        {{/isInteger}}
        keyPairQuery_{{paramName}} = keyValuePair_create(keyQuery_{{{paramName}}}, {{#isEnum}}strdup({{{operationId}}}_{{enumName}}_ToString(
-        {{/isEnum}}{{^isString}}{{^isInteger}}{{^isFloat}}{{^isDouble}}{{^isLong}}{{^isBoolean}}&{{/isBoolean}}{{/isLong}}{{/isDouble}}{{/isFloat}}{{/isInteger}}{{/isString}}valueQuery_{{{paramName}}}{{#isEnum}})){{/isEnum}});
+        {{/isEnum}}{{^isString}}{{^isInteger}}{{^isBoolean}}&{{/isBoolean}}{{/isInteger}}{{/isString}}valueQuery_{{{paramName}}}{{#isEnum}})){{/isEnum}});
        list_addElement(localVarQueryParameters,keyPairQuery_{{paramName}});
        {{/isArray}}
    }
--- a/modules/openapi-generator/src/main/resources/Java/libraries/microprofile/beanValidationCore.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/microprofile/beanValidationCore.mustache
@@ -1,4 +1,4 @@
-{{^isUuid}}{{#pattern}} @Pattern(regexp="{{{.}}}"){{/pattern}}{{!
+{{#pattern}} @Pattern(regexp="{{{.}}}"){{/pattern}}{{!
 minLength && maxLength set
 }}{{#minLength}}{{#maxLength}} @Size(min={{minLength}},max={{maxLength}}){{/maxLength}}{{/minLength}}{{!
 minLength set, maxLength not
@@ -17,4 +17,4 @@ isInteger set
 isLong set
 }}{{#isLong}}{{#minimum}} @Min({{.}}L){{/minimum}}{{#maximum}} @Max({{.}}L){{/maximum}}{{/isLong}}{{!
 Not Integer, not Long => we have a decimal value!
-}}{{^isInteger}}{{^isLong}}{{#minimum}} @DecimalMin("{{.}}"){{/minimum}}{{#maximum}} @DecimalMax("{{.}}"){{/maximum}}{{/isLong}}{{/isInteger}}{{/isUuid}}
+}}{{^isInteger}}{{^isLong}}{{#minimum}} @DecimalMin("{{.}}"){{/minimum}}{{#maximum}} @DecimalMax("{{.}}"){{/maximum}}{{/isLong}}{{/isInteger}}
--- a/modules/openapi-generator/src/main/resources/Java/libraries/webclient/ApiClient.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/webclient/ApiClient.mustache
@@ -357,7 +357,10 @@ public class ApiClient{{#jsr310}} extends JavaTimeFormatter{{/jsr310}} {
     * @return ApiClient this client
     */
    public ApiClient addDefaultHeader(String name, String value) {
-        defaultHeaders.set(name, value);
+        if (defaultHeaders.containsKey(name)) {
+            defaultHeaders.remove(name);
+        }
+        defaultHeaders.add(name, value);
        return this;
    }

@@ -734,12 +737,7 @@ public class ApiClient{{#jsr310}} extends JavaTimeFormatter{{/jsr310}} {
     * @param requestBuilder The current request
     */
    protected void addHeadersToRequest(HttpHeaders headers, WebClient.RequestBodySpec requestBuilder) {
-    {{#useJakartaEe}}
-        for (Entry<String, List<String>> entry : headers.headerSet()) {
-    {{/useJakartaEe}}
-    {{^useJakartaEe}}
        for (Entry<String, List<String>> entry : headers.entrySet()) {
-    {{/useJakartaEe}}
            List<String> values = entry.getValue();
            for(String value : values) {
                if (value != null) {
--- a/modules/openapi-generator/src/main/resources/Java/libraries/webclient/build.gradle.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/webclient/build.gradle.mustache
@@ -131,7 +131,7 @@ ext {
    swagger_annotations_version = "2.2.9"
    {{/swagger2AnnotationLibrary}}
    {{#useJakartaEe}}
-    spring_boot_version = "3.2.12"
+    spring_boot_version = "3.0.12"
    jakarta_annotation_version = "2.1.1"
    beanvalidation_version = "3.0.2"
    reactor_version = "3.5.12"
--- a/modules/openapi-generator/src/main/resources/Java/libraries/webclient/pom.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/webclient/pom.mustache
@@ -173,7 +173,7 @@
        <jackson-databind-nullable-version>0.2.7</jackson-databind-nullable-version>
        {{/openApiNullable}}
        {{#useJakartaEe}}
-        <spring-boot-version>3.2.12</spring-boot-version>
+        <spring-boot-version>3.0.12</spring-boot-version>
        <jakarta-annotation-version>2.1.1</jakarta-annotation-version>
        <reactor-version>3.5.12</reactor-version>
        <reactor-netty-version>1.2.8</reactor-netty-version>
--- a/modules/openapi-generator/src/main/resources/Java/oneof_interface.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/oneof_interface.mustache
@@ -1,7 +1,4 @@
 {{>additionalOneOfTypeAnnotations}}{{>generatedAnnotation}}{{>typeInfoAnnotation}}{{>xmlAnnotation}}
-{{#vendorExtensions.x-class-extra-annotation}}
-{{{vendorExtensions.x-class-extra-annotation}}}
-{{/vendorExtensions.x-class-extra-annotation}}
 public {{>sealed}}interface {{classname}} {{#vendorExtensions.x-implements}}{{#-first}}extends {{{.}}}{{/-first}}{{^-first}}, {{{.}}}{{/-first}}{{/vendorExtensions.x-implements}}{{>permits}}{
    {{#discriminator}}
    public {{propertyType}} {{propertyGetter}}();
--- a/modules/openapi-generator/src/main/resources/JavaJaxRS/cxf-cdi/api.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaJaxRS/cxf-cdi/api.mustache
@@ -27,7 +27,7 @@ import {{javaxPackage}}.validation.Valid;
@Path("{{commonPath}}")
@RequestScoped

-@Api
+@Api(description = "the {{{baseName}}} API")
 {{#hasConsumes}}@Consumes({ {{#consumes}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/consumes}} }){{/hasConsumes}}
 {{#hasProduces}}@Produces({ {{#produces}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/produces}} }){{/hasProduces}}
 {{>generatedAnnotation}}
--- a/modules/openapi-generator/src/main/resources/JavaJaxRS/cxf/api_test.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaJaxRS/cxf/api_test.mustache
@@ -8,9 +8,7 @@ import org.junit.Test;
 import org.junit.Before;
 import static org.junit.Assert.*;

-{{#useBeanValidation}}
 import {{javaxPackage}}.validation.Valid;
-{{/useBeanValidation}}
 import {{javaxPackage}}.ws.rs.core.Response;
 import org.apache.cxf.jaxrs.client.JAXRSClientFactory;
 import org.apache.cxf.jaxrs.client.ClientConfiguration;
--- a/modules/openapi-generator/src/main/resources/JavaJaxRS/spec/enumClass.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaJaxRS/spec/enumClass.mustache
@@ -1,11 +1,7 @@
-{{#withXml}}
-@XmlType(name="{{datatypeWithEnum}}")
-@XmlEnum({{dataType}}.class)
-{{/withXml}}
 {{>additionalEnumTypeAnnotations}}public enum {{datatypeWithEnum}} {

    {{#allowableValues}}
-    {{#enumVars}}{{#withXml}}@XmlEnumValue({{#isInteger}}"{{/isInteger}}{{#isDouble}}"{{/isDouble}}{{#isLong}}"{{/isLong}}{{#isFloat}}"{{/isFloat}}{{{value}}}{{#isInteger}}"{{/isInteger}}{{#isDouble}}"{{/isDouble}}{{#isLong}}"{{/isLong}}{{#isFloat}}"{{/isFloat}}){{/withXml}}{{name}}({{dataType}}.valueOf({{{value}}})){{^-last}}, {{/-last}}{{#-last}};{{/-last}}{{/enumVars}}
+    {{#enumVars}}{{name}}({{dataType}}.valueOf({{{value}}})){{^-last}}, {{/-last}}{{#-last}};{{/-last}}{{/enumVars}}
    {{/allowableValues}}


--- a/modules/openapi-generator/src/main/resources/JavaJaxRS/spec/pojo.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaJaxRS/spec/pojo.mustache
@@ -7,23 +7,13 @@ import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
 import com.fasterxml.jackson.annotation.JsonTypeName;

-{{#withXml}}
-import {{javaxPackage}}.xml.bind.annotation.XmlElement;
-import {{javaxPackage}}.xml.bind.annotation.XmlRootElement;
-import {{javaxPackage}}.xml.bind.annotation.XmlAccessType;
-import {{javaxPackage}}.xml.bind.annotation.XmlAccessorType;
-import {{javaxPackage}}.xml.bind.annotation.XmlType;
-import {{javaxPackage}}.xml.bind.annotation.XmlEnum;
-import {{javaxPackage}}.xml.bind.annotation.XmlEnumValue;
-{{/withXml}}
-
 {{#discriminator}}{{>typeInfoAnnotation}}{{/discriminator}}{{#description}}/**
 * {{.}}
 **/{{/description}}
 {{#useSwaggerAnnotations}}{{#description}}@ApiModel(description = "{{{.}}}"){{/description}}{{/useSwaggerAnnotations}}{{#useMicroProfileOpenAPIAnnotations}}
@org.eclipse.microprofile.openapi.annotations.media.Schema({{#title}}title="{{{.}}}", {{/title}}{{#description}}description="{{{.}}}"{{/description}}{{^description}}description=""{{/description}}){{/useMicroProfileOpenAPIAnnotations}}
@JsonTypeName("{{name}}")
-{{>generatedAnnotation}}{{>additionalModelTypeAnnotations}}{{>xmlPojoAnnotation}}
+{{>generatedAnnotation}}{{>additionalModelTypeAnnotations}}
 {{#vendorExtensions.x-class-extra-annotation}}
 {{{vendorExtensions.x-class-extra-annotation}}}
 {{/vendorExtensions.x-class-extra-annotation}}
@@ -102,9 +92,6 @@ public class {{classname}} {{#parent}}extends {{{.}}}{{/parent}} {{#vendorExtens
    return this;
  }

-  {{#withXml}}
-      @XmlElement(name="{{baseName}}"{{#required}}, required = {{required}}{{/required}})
-  {{/withXml}}
  {{#vendorExtensions.x-extra-annotation}}{{{vendorExtensions.x-extra-annotation}}}{{/vendorExtensions.x-extra-annotation}}{{#useSwaggerAnnotations}}
  @ApiModelProperty({{#example}}example = "{{{.}}}", {{/example}}{{#required}}required = {{required}}, {{/required}}value = "{{{description}}}"){{/useSwaggerAnnotations}}{{#useMicroProfileOpenAPIAnnotations}}
  @org.eclipse.microprofile.openapi.annotations.media.Schema({{#example}}example = "{{{.}}}", {{/example}}{{#required}}required = {{required}}, {{/required}}description = "{{{description}}}"){{/useMicroProfileOpenAPIAnnotations}}
--- a/modules/openapi-generator/src/main/resources/JavaJaxRS/spec/xmlPojoAnnotation.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaJaxRS/spec/xmlPojoAnnotation.mustache
@@ -1,8 +0,0 @@
-{{#withXml}}
-    @XmlAccessorType(XmlAccessType.FIELD)
-    {{#hasVars}} @XmlType(name = "{{classname}}", propOrder =
-    { {{#vars}}"{{name}}"{{^-last}}, {{/-last}}{{/vars}}
-    }){{/hasVars}}
-    {{^hasVars}}@XmlType(name = "{{classname}}"){{/hasVars}}
-    {{^parent}}@XmlRootElement(name="{{classname}}"){{/parent}}
-{{/withXml}}
--- a/modules/openapi-generator/src/main/resources/JavaSpring/api.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaSpring/api.mustache
@@ -252,8 +252,7 @@ public interface {{classname}} {
        produces = { {{#produces}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/produces}} }{{/hasProduces}}{{#hasConsumes}},
        consumes = { {{#consumes}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/consumes}} }{{/hasConsumes}}{{/singleContentTypes}}{{#hasVersionHeaders}},
        headers = { {{#vendorExtensions.versionHeaderParamsList}}"{{baseName}}{{#defaultValue}}={{{.}}}{{/defaultValue}}"{{^-last}}, {{/-last}}{{/vendorExtensions.versionHeaderParamsList}} } {{/hasVersionHeaders}}{{#hasVersionQueryParams}},
-        params = { {{#vendorExtensions.versionQueryParamsList}}"{{baseName}}{{#defaultValue}}={{{.}}}{{/defaultValue}}"{{^-last}}, {{/-last}}{{/vendorExtensions.versionQueryParamsList}} } {{/hasVersionQueryParams}}{{#vendorExtensions.x-spring-api-version}}{{^empty}},
-        version = "{{{vendorExtensions.x-spring-api-version}}}"{{/empty}}{{/vendorExtensions.x-spring-api-version}}
+        params = { {{#vendorExtensions.versionQueryParamsList}}"{{baseName}}{{#defaultValue}}={{{.}}}{{/defaultValue}}"{{^-last}}, {{/-last}}{{/vendorExtensions.versionQueryParamsList}} } {{/hasVersionQueryParams}}
    )
    {{^useResponseEntity}}
    @ResponseStatus({{#springHttpStatus}}{{#responses.0}}{{{code}}}{{/responses.0}}{{/springHttpStatus}})
--- a/modules/openapi-generator/src/main/resources/JavaSpring/oneof_interface.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaSpring/oneof_interface.mustache
@@ -13,8 +13,7 @@
    @JsonSubTypes.Type(value = {{classname}}.class){{^-last}}, {{/-last}}
    {{/interfaceModels}}
 })
-{{/useDeductionForOneOfInterfaces}}{{#vendorExtensions.x-class-extra-annotation}}{{{vendorExtensions.x-class-extra-annotation}}}
-{{/vendorExtensions.x-class-extra-annotation}}
+{{/useDeductionForOneOfInterfaces}}
 {{/discriminator}}
 {{>generatedAnnotation}}

--- a/modules/openapi-generator/src/main/resources/go-server/controller-api.mustache
+++ b/modules/openapi-generator/src/main/resources/go-server/controller-api.mustache
@@ -6,10 +6,12 @@ import (
 	{{#hasBodyParams}}
 	"encoding/json"
 	{{/hasBodyParams}}
-	{{#hasOptionalBodyParams}}
+	{{#isBodyParam}}
+	    {{^required}}
 	"errors"
 	"io"
-	{{/hasOptionalBodyParams}}
+	    {{/required}}
+	{{/isBodyParam}}
 	"net/http"
 	"strings"
 {{#imports}}	"{{import}}"
--- a/modules/openapi-generator/src/main/resources/kotlin-client/libraries/multiplatform/anyof_class.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-client/libraries/multiplatform/anyof_class.mustache
@@ -1,79 +0,0 @@
-{{#multiplatform}}
-import kotlinx.serialization.*
-import kotlinx.serialization.descriptors.*
-import kotlinx.serialization.encoding.*
-import kotlinx.serialization.json.*
-
-/**
- * {{{description}}}
- *
- */
-{{#isDeprecated}}
-@Deprecated(message = "This schema is deprecated.")
-{{/isDeprecated}}
-@Serializable(with = {{classname}}.{{classname}}Serializer::class)
-{{#nonPublicApi}}internal {{/nonPublicApi}}{{^nonPublicApi}}{{#explicitApi}}public {{/explicitApi}}{{/nonPublicApi}}data class {{classname}}(var actualInstance: Any? = null) {
-
-    object {{classname}}Serializer : KSerializer<{{classname}}> {
-        override val descriptor: SerialDescriptor = buildClassSerialDescriptor("{{classname}}") {
-            element("type", JsonPrimitive.serializer().descriptor)
-            element("actualInstance", JsonElement.serializer().descriptor)
-        }
-
-        override fun serialize(encoder: Encoder, value: {{classname}}) {
-            val jsonEncoder = encoder as? JsonEncoder ?: throw SerializationException("{{classname}} can only be serialized with Json")
-
-            when (val instance = value.actualInstance) {
-                {{#composedSchemas}}
-                {{#anyOf}}
-                {{#isPrimitiveType}}
-                {{#isString}}
-                is kotlin.String -> jsonEncoder.encodeString(instance)
-                {{/isString}}
-                {{#isBoolean}}
-                is kotlin.Boolean -> jsonEncoder.encodeBoolean(instance)
-                {{/isBoolean}}
-                {{#isInteger}}
-                is kotlin.Int -> jsonEncoder.encodeInt(instance)
-                {{/isInteger}}
-                {{#isNumber}}
-                {{#isDouble}}
-                is kotlin.Double -> jsonEncoder.encodeDouble(instance)
-                {{/isDouble}}
-                {{#isFloat}}
-                is kotlin.Float -> jsonEncoder.encodeFloat(instance)
-                {{/isFloat}}
-                {{/isNumber}}
-                {{/isPrimitiveType}}
-                {{^isPrimitiveType}}
-                is {{{dataType}}} -> jsonEncoder.encodeSerializableValue({{{dataType}}}.serializer(), instance)
-                {{/isPrimitiveType}}
-                {{/anyOf}}
-                {{/composedSchemas}}
-                null -> jsonEncoder.encodeJsonElement(JsonNull)
-                else -> throw SerializationException("Unknown type in actualInstance: ${instance::class}")
-            }
-        }
-
-        override fun deserialize(decoder: Decoder): {{classname}} {
-            val jsonDecoder = decoder as? JsonDecoder ?: throw SerializationException("{{classname}} can only be deserialized with Json")
-            val jsonElement = jsonDecoder.decodeJsonElement()
-
-            val errorMessages = mutableListOf<String>()
-
-            {{#composedSchemas}}
-            {{#anyOf}}
-            try {
-                val instance = jsonDecoder.json.decodeFromJsonElement<{{{dataType}}}>(jsonElement)
-                return {{classname}}(actualInstance = instance)
-            } catch (e: Exception) {
-                errorMessages.add("Failed to deserialize as {{{dataType}}}: ${e.message}")
-            }
-            {{/anyOf}}
-            {{/composedSchemas}}
-
-            throw SerializationException("Cannot deserialize {{classname}}. Tried: ${errorMessages.joinToString(", ")}")
-        }
-    }
-}
-{{/multiplatform}}
--- a/modules/openapi-generator/src/main/resources/kotlin-client/libraries/multiplatform/oneof_class.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-client/libraries/multiplatform/oneof_class.mustache
@@ -1,79 +0,0 @@
-{{#multiplatform}}
-import kotlinx.serialization.*
-import kotlinx.serialization.descriptors.*
-import kotlinx.serialization.encoding.*
-import kotlinx.serialization.json.*
-
-/**
- * {{{description}}}
- *
- */
-{{#isDeprecated}}
-@Deprecated(message = "This schema is deprecated.")
-{{/isDeprecated}}
-@Serializable(with = {{classname}}.{{classname}}Serializer::class)
-{{#nonPublicApi}}internal {{/nonPublicApi}}{{^nonPublicApi}}{{#explicitApi}}public {{/explicitApi}}{{/nonPublicApi}}data class {{classname}}(var actualInstance: Any? = null) {
-
-    object {{classname}}Serializer : KSerializer<{{classname}}> {
-        override val descriptor: SerialDescriptor = buildClassSerialDescriptor("{{classname}}") {
-            element("type", JsonPrimitive.serializer().descriptor)
-            element("actualInstance", JsonElement.serializer().descriptor)
-        }
-
-        override fun serialize(encoder: Encoder, value: {{classname}}) {
-            val jsonEncoder = encoder as? JsonEncoder ?: throw SerializationException("{{classname}} can only be serialized with Json")
-
-            when (val instance = value.actualInstance) {
-                {{#composedSchemas}}
-                {{#oneOf}}
-                {{#isPrimitiveType}}
-                {{#isString}}
-                is kotlin.String -> jsonEncoder.encodeString(instance)
-                {{/isString}}
-                {{#isBoolean}}
-                is kotlin.Boolean -> jsonEncoder.encodeBoolean(instance)
-                {{/isBoolean}}
-                {{#isInteger}}
-                is kotlin.Int -> jsonEncoder.encodeInt(instance)
-                {{/isInteger}}
-                {{#isNumber}}
-                {{#isDouble}}
-                is kotlin.Double -> jsonEncoder.encodeDouble(instance)
-                {{/isDouble}}
-                {{#isFloat}}
-                is kotlin.Float -> jsonEncoder.encodeFloat(instance)
-                {{/isFloat}}
-                {{/isNumber}}
-                {{/isPrimitiveType}}
-                {{^isPrimitiveType}}
-                is {{{dataType}}} -> jsonEncoder.encodeSerializableValue({{{dataType}}}.serializer(), instance)
-                {{/isPrimitiveType}}
-                {{/oneOf}}
-                {{/composedSchemas}}
-                null -> jsonEncoder.encodeJsonElement(JsonNull)
-                else -> throw SerializationException("Unknown type in actualInstance: ${instance::class}")
-            }
-        }
-
-        override fun deserialize(decoder: Decoder): {{classname}} {
-            val jsonDecoder = decoder as? JsonDecoder ?: throw SerializationException("{{classname}} can only be deserialized with Json")
-            val jsonElement = jsonDecoder.decodeJsonElement()
-
-            val errorMessages = mutableListOf<String>()
-
-            {{#composedSchemas}}
-            {{#oneOf}}
-            try {
-                val instance = jsonDecoder.json.decodeFromJsonElement<{{{dataType}}}>(jsonElement)
-                return {{classname}}(actualInstance = instance)
-            } catch (e: Exception) {
-                errorMessages.add("Failed to deserialize as {{{dataType}}}: ${e.message}")
-            }
-            {{/oneOf}}
-            {{/composedSchemas}}
-
-            throw SerializationException("Cannot deserialize {{classname}}. Tried: ${errorMessages.joinToString(", ")}")
-        }
-    }
-}
-{{/multiplatform}}
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/dataClass.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-spring/dataClass.mustache
@@ -18,7 +18,7 @@
 {{/hasOptional}}{{/hasRequired}}{{#optionalVars}}{{>dataClassOptVar}}{{^-last}},
 {{/-last}}{{/optionalVars}}
 ){{/discriminator}}{{! no newline
-}}{{#parent}} : {{{.}}}{{#isMap}}(){{/isMap}}{{! no newline
+}}{{#parent}} : {{{.}}}{{! no newline
    }}{{#serializableModel}}{{! no newline
      }}{{^vendorExtensions.x-kotlin-implements}}, Serializable{{/vendorExtensions.x-kotlin-implements}}{{! no newline
      }}{{#vendorExtensions.x-kotlin-implements}}, Serializable, {{! no newline
--- a/modules/openapi-generator/src/main/resources/php-nextgen/ObjectSerializer.mustache
+++ b/modules/openapi-generator/src/main/resources/php-nextgen/ObjectSerializer.mustache
@@ -579,6 +579,6 @@ class ObjectSerializer
            }
        }

-        return $qs ? substr($qs, 0, -1) : '';
+        return $qs ? (string) substr($qs, 0, -1) : '';
    }
 }
--- a/modules/openapi-generator/src/main/resources/php/ObjectSerializer.mustache
+++ b/modules/openapi-generator/src/main/resources/php/ObjectSerializer.mustache
@@ -586,6 +586,6 @@ class ObjectSerializer
            }
        }

-        return $qs ? substr($qs, 0, -1) : '';
+        return $qs ? (string) substr($qs, 0, -1) : '';
    }
 }
--- a/modules/openapi-generator/src/main/resources/php/api_doc.mustache
+++ b/modules/openapi-generator/src/main/resources/php/api_doc.mustache
@@ -1,6 +1,6 @@
-# {{invokerPackage}}\{{classname}}{{#operationTagDescription}}
+# {{invokerPackage}}\{{classname}}{{#description}}

-{{operationTagDescription}}{{/operationTagDescription}}
+{{.}}{{/description}}

 All URIs are relative to {{basePath}}, except if the operation defines another base path.

--- a/modules/openapi-generator/src/main/resources/python/README_onlypackage.mustache
+++ b/modules/openapi-generator/src/main/resources/python/README_onlypackage.mustache
@@ -28,10 +28,10 @@ To be able to use it, you will need these dependencies in your own package that

 * urllib3 >= 2.1.0, < 3.0.0
 * python-dateutil >= 2.8.2
-{{#async}}
+{{#asyncio}}
 * aiohttp >= 3.8.4
 * aiohttp-retry >= 2.8.3
-{{/async}}
+{{/asyncio}}
 {{#tornado}}
 * tornado >= 4.2, < 5
 {{/tornado}}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
William Cheng	3d25263e32	use localhost	2025-09-27 16:33:24 +08:00
William Cheng	9a2d997398	skip host table update	2025-09-27 16:19:59 +08:00
William Cheng	d920f72020	test with ruby 3.4	2025-09-27 16:17:40 +08:00
William Cheng	152c87ee18	Revert "test with mac" This reverts commit `3acc76a48b`.	2025-09-27 15:53:48 +08:00
William Cheng	3acc76a48b	test with mac	2025-09-27 15:32:08 +08:00
William Cheng	efd2fe60ad	Merge remote-tracking branch 'origin/master' into ruby-github-test	2025-09-24 16:24:15 +08:00
William Cheng	43c78856f5	add new files	2025-09-21 17:51:01 +08:00
William Cheng	564f4e023d	cat hosts	2025-09-21 17:34:07 +08:00
William Cheng	117773f14c	update samples	2025-09-21 17:29:03 +08:00
William Cheng	260787b0a1	update	2025-09-21 17:07:40 +08:00
William Cheng	ef0aef28d7	use 127.0.0.1	2025-09-21 17:02:14 +08:00
William Cheng	324d773123	update tests	2025-09-21 16:56:52 +08:00
William Cheng	2760903274	update config to use ruby petstore fake spec	2025-09-21 16:48:43 +08:00
William Cheng	9d29eb98bc	localhost	2025-09-21 16:44:59 +08:00
William Cheng	c2a8e11b45	add petstore, update host table	2025-09-21 16:39:50 +08:00
William Cheng	2b3947ea1a	fix workflow	2025-09-21 16:38:06 +08:00
William Cheng	33fdad9554	add echo client tests	2025-09-21 16:35:55 +08:00
William Cheng	dceb03a8f0	migrate ruby tests to github workflow	2025-09-21 16:33:18 +08:00