diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5150fb7af..b987d9322 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,108 @@
+## 4.2.0 (Nov 1, 2024)
+
+High level enhancements
+
+- Massive refactor of plugin and theme that dramatically optimizes and reduces generated MDX.
+- Added sample JSON code snippet component to schema pages.
+- Improvements to how allOf, additonalProperties and discriminators are processed/handled.
+
+Other enhancements and bug fixes
+
+### Features/Enhancements
+
+- **discriminators**
+  - Improve handling of discriminators ([#1009](https://github.com/PaloAltoNetworks/docusaurus-openapi-docs/pull/1009))
+- **schema**
+  - Migrate schema page to Schema component and refactor layout ([#1001](https://github.com/PaloAltoNetworks/docusaurus-openapi-docs/pull/1001))
+  - Refactor to use new theme components
+  - Add new RequestSchema and Schema components
+- **additional properties**
+  - Add additionalProperties examples to tests
+  - Support object as primitive additional properties
+  - Improve Items support for allOf and primitives
+- **allOf handling**
+  - Refactor items allOf to new pattern/library
+  - Extend allOf tests
+  - Migrate to allof-merge library to improve merging
+  - Improve handling of top-level primitives
+  - Improve support for allOf
+  - Avoid returning on first schema match and improve support for AnyOneOf
+- **UI/UX improvements**
+  - Implement skeleton loader component
+  - Try lazy loading on all
+  - Implement lazy loading without BrowserOnly
+  - Render loading spinner instead of text
+  - Add language tabs back
+  - Add default logo for http and shell
+  - Add margin top to enum descriptions
+  - Change label from generated to auto
+  - Add Summary component, cleanup PropertyDiscriminator and SchemaNodeDetails
+  - Rename Edge to SchemaEdge and fix props and types
+  - Rename SchemaComponent to SchemaNode
+  - Cleanup Properties and add missing props
+  - Port x-enumDescription fix from [#981](https://github.com/PaloAltoNetworks/docusaurus-openapi-docs/pull/981)
+  - Add additional schema support to edge
+  - Support single mime type schemas
+  - Make props optional
+  - Add DetailsNode component and markdown rendering for description and qualifier
+  - Add StatusCodes component
+  - Use ExecutionEnvironment to avoid SSR
+  - Render ParamsDetails client-side
+  - Add response examples
+  - Add ResponseExamples component
+  - Import new ResponseSchema component
+  - Switch to new ResponseSchema component
+  - Add new ResponseSchema component
+  - Reduce params details to single component for all types
+  - Switch to docusaurus Details component
+  - Fix details summaries
+  - Add ParamsDetails to imports
+  - Refactor createParamsDetails to use component
+  - Add className to Props
+  - Add new ParamsDetails component
+
+### Bug Fixes
+
+- **allOf items**
+  - [Fix] All of items in array for API response ([#995](https://github.com/PaloAltoNetworks/docusaurus-openapi-docs/pull/995))
+  - Fix linter errors
+  - Update test snapshot
+  - Fix create allof request/response samples
+- **empty language tabs**
+  - Fix bug in CodeSnippets component ([#988](https://github.com/PaloAltoNetworks/docusaurus-openapi-docs/pull/988))
+- **contact info**
+  - Fix bug in createContactInfo.ts, protocol was set to mailto even though it was a URL ([#992](https://github.com/PaloAltoNetworks/docusaurus-openapi-docs/pull/992))
+- **import names**
+  - Fix import name
+
+### Refactoring
+
+- **schema**
+  - Refactor create schema tests to cypress ([#997](https://github.com/PaloAltoNetworks/docusaurus-openapi-docs/pull/997))
+  - Rename 'from schema' to 'generated' and cleanup examples
+- **imports**
+  - Remove unused imports
+  - Cleanup API doc template imports
+  - Update imports
+  - Remove unused imports
+  - Update imports
+- **code cleanup**
+  - Remove unused import
+  - Cleanup AdditionalProperties types and logic
+  - Cleanup PropertyDiscriminator and Markdown types
+  - Cleanup code comments
+  - Remove unnecessary div
+  - Revert CSR experiment
+  - Remove unnecessary div
+  - Remove code comment
+
+### Other
+
+- **internal**
+  - Migrate branch 'main' into params-details
+  - Update build-perf.yml
+  - Update build-perf.yml
+
 ## 4.1.0 (Oct 4, 2024)
 
 High level enhancements
diff --git a/README.md b/README.md
index 5756170e8..9fac7bf9c 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ Key Features:
 
 | Docusaurus OpenAPI Docs | Docusaurus      |
 | ----------------------- | --------------- |
-| 4.0.x (current)         | `3.5.0 - 3.5.2` |
+| 4.x.x (current)         | `3.5.0 - 3.5.2` |
 | 3.0.x (end-of-support)  | `3.0.1 - 3.4.0` |
 | 2.2.3 (legacy)          | `2.4.1 - 2.4.3` |
 | 1.7.3 (end-of-support)  | `2.0.1 - 2.2.0` |
diff --git a/demo/package.json b/demo/package.json
index dc45fa330..1f0dc8b77 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -1,6 +1,6 @@
 {
   "name": "demo",
-  "version": "4.1.0",
+  "version": "4.2.0",
   "private": true,
   "scripts": {
     "docusaurus": "docusaurus",
@@ -25,8 +25,8 @@
     "@docusaurus/plugin-google-gtag": "3.5.2",
     "@docusaurus/preset-classic": "3.5.2",
     "clsx": "^1.1.1",
-    "docusaurus-plugin-openapi-docs": "^4.1.0",
-    "docusaurus-theme-openapi-docs": "^4.1.0",
+    "docusaurus-plugin-openapi-docs": "^4.2.0",
+    "docusaurus-theme-openapi-docs": "^4.2.0",
     "prism-react-renderer": "^2.3.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"
diff --git a/lerna.json b/lerna.json
index b60acb1e9..8419cd22c 100644
--- a/lerna.json
+++ b/lerna.json
@@ -1,4 +1,4 @@
 {
-  "version": "4.1.0",
+  "version": "4.2.0",
   "npmClient": "yarn"
 }
diff --git a/packages/docusaurus-plugin-openapi-docs/package.json b/packages/docusaurus-plugin-openapi-docs/package.json
index 306a977c2..6a78542e2 100644
--- a/packages/docusaurus-plugin-openapi-docs/package.json
+++ b/packages/docusaurus-plugin-openapi-docs/package.json
@@ -1,7 +1,7 @@
 {
   "name": "docusaurus-plugin-openapi-docs",
   "description": "OpenAPI plugin for Docusaurus.",
-  "version": "4.1.0",
+  "version": "4.2.0",
   "license": "MIT",
   "keywords": [
     "openapi",
diff --git a/packages/docusaurus-theme-openapi-docs/package.json b/packages/docusaurus-theme-openapi-docs/package.json
index f365baaee..8240aa847 100644
--- a/packages/docusaurus-theme-openapi-docs/package.json
+++ b/packages/docusaurus-theme-openapi-docs/package.json
@@ -1,7 +1,7 @@
 {
   "name": "docusaurus-theme-openapi-docs",
   "description": "OpenAPI theme for Docusaurus.",
-  "version": "4.1.0",
+  "version": "4.2.0",
   "license": "MIT",
   "keywords": [
     "openapi",
@@ -43,7 +43,7 @@
     "clsx": "^1.1.1",
     "copy-text-to-clipboard": "^3.1.0",
     "crypto-js": "^4.1.1",
-    "docusaurus-plugin-openapi-docs": "^4.1.0",
+    "docusaurus-plugin-openapi-docs": "^4.2.0",
     "docusaurus-plugin-sass": "^0.2.3",
     "file-saver": "^2.0.5",
     "lodash": "^4.17.20",