diff --git a/package.json b/package.json
index 016c41f232..982b544610 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "bugs": "https://github.com/neos/neos-ui/issues",
   "homepage": "https://github.com/neos/neos-ui/blob/master/README.md",
   "license": "GNU GPLv3",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "private": true,
   "resolutions": {
     "moment": "^2.20.1",
@@ -44,5 +44,6 @@
   "jest": {
     "preset": "@neos-project/jest-preset-neos-ui"
   },
-  "packageManager": "yarn@3.2.0"
+  "packageManager": "yarn@3.2.0",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/debug-reason-for-rendering/package.json b/packages/debug-reason-for-rendering/package.json
index 3bd670bf7a..b145840b96 100644
--- a/packages/debug-reason-for-rendering/package.json
+++ b/packages/debug-reason-for-rendering/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/debug-reason-for-rendering",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "React Performance Optimization Utility - Why does a component re-render?",
   "repository": "neos/neos-ui",
   "bugs": "https://github.com/neos/neos-ui/issues",
@@ -9,5 +9,6 @@
   "license": "MIT",
   "peerDependencies": {
     "react": "^16.12.0"
-  }
+  },
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/jest-preset-neos-ui/package.json b/packages/jest-preset-neos-ui/package.json
index 0463c5d65e..da83632911 100644
--- a/packages/jest-preset-neos-ui/package.json
+++ b/packages/jest-preset-neos-ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/jest-preset-neos-ui",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "The jest preset for all packages of the neos-ui mono-repo.",
   "main": "jest-preset.json",
   "private": true,
@@ -13,5 +13,6 @@
   "peerDependencies": {
     "enzyme": "^3.8.0"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ts-interfaces/package.json b/packages/neos-ts-interfaces/package.json
index 189a597055..d736816a67 100644
--- a/packages/neos-ts-interfaces/package.json
+++ b/packages/neos-ts-interfaces/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ts-interfaces",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Neos domain-related TypeScript interfaces",
   "private": true,
   "main": "src/index.ts",
@@ -9,5 +9,6 @@
     "@neos-project/neos-ui-build": "workspace:*",
     "typescript": "^4.6.4"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-backend-connector/package.json b/packages/neos-ui-backend-connector/package.json
index 6f1e7ab7b9..156d4e783f 100644
--- a/packages/neos-ui-backend-connector/package.json
+++ b/packages/neos-ui-backend-connector/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-backend-connector",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Endoints and fetch cals to the Neos CMS backend",
   "private": true,
   "main": "./src/index.ts",
@@ -12,5 +12,6 @@
     "@neos-project/neos-ts-interfaces": "workspace:*",
     "@neos-project/utils-helpers": "workspace:*"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-build/package.json b/packages/neos-ui-build/package.json
index 9ca0c51991..1a7990f450 100644
--- a/packages/neos-ui-build/package.json
+++ b/packages/neos-ui-build/package.json
@@ -1,6 +1,7 @@
 {
   "name": "@neos-project/neos-ui-build",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Bob der Baumeister",
-  "private": true
+  "private": true,
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-ckeditor5-bindings/package.json b/packages/neos-ui-ckeditor5-bindings/package.json
index 1c8cdb1cb4..a0c985136c 100644
--- a/packages/neos-ui-ckeditor5-bindings/package.json
+++ b/packages/neos-ui-ckeditor5-bindings/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-ckeditor5-bindings",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Prepare CKEditor5 for the Neos CMS UI",
   "private": true,
   "main": "./src/manifest.js",
@@ -34,5 +34,6 @@
     "react": "^16.12.0",
     "react-redux": "^7.1.3"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-constants/package.json b/packages/neos-ui-constants/package.json
index e95ec2960c..0f3b93e974 100644
--- a/packages/neos-ui-constants/package.json
+++ b/packages/neos-ui-constants/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-constants",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Container package to store Neos CMS UI constants",
   "private": true,
   "main": "./src/index.js",
@@ -8,5 +8,6 @@
     "@neos-project/jest-preset-neos-ui": "workspace:*",
     "typescript": "^4.6.4"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-containers/package.json b/packages/neos-ui-containers/package.json
index 020cf01134..3874068311 100644
--- a/packages/neos-ui-containers/package.json
+++ b/packages/neos-ui-containers/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-containers",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Smart components for Neos CMS UI.",
   "private": true,
   "main": "./src/index.js",
@@ -18,5 +18,6 @@
     "prop-types": "^15.5.10",
     "react": "^16.12.0"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-contentrepository/package.json b/packages/neos-ui-contentrepository/package.json
index df9e7d3c30..e144f96fd1 100644
--- a/packages/neos-ui-contentrepository/package.json
+++ b/packages/neos-ui-contentrepository/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-contentrepository",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Bindings for the Neos ContentRepository",
   "private": true,
   "main": "./src/manifest.js",
@@ -21,5 +21,6 @@
     "setupFiles": [
       "../jest-preset-neos-ui/src/setupNeosUiHostEnv.js"
     ]
-  }
+  },
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-decorators/package.json b/packages/neos-ui-decorators/package.json
index 5af1ad95bf..445be0733a 100644
--- a/packages/neos-ui-decorators/package.json
+++ b/packages/neos-ui-decorators/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-decorators",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Decorators for Neos CMS UI.",
   "private": true,
   "main": "./src/index.ts",
@@ -16,5 +16,6 @@
     "@neos-project/neos-ts-interfaces": "workspace:*",
     "reselect": "^3.0.1"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-editors/package.json b/packages/neos-ui-editors/package.json
index afc0571b67..b68f244d92 100644
--- a/packages/neos-ui-editors/package.json
+++ b/packages/neos-ui-editors/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-editors",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Neos CMS UI Editors for use in the inspector.",
   "main": "src/manifest.js",
   "private": true,
@@ -42,5 +42,6 @@
     "react-redux": "^7.1.3",
     "redux": "^4.0.5"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-extensibility-webpack-adapter/package.json b/packages/neos-ui-extensibility-webpack-adapter/package.json
index f7624b24cc..59f0d1c256 100644
--- a/packages/neos-ui-extensibility-webpack-adapter/package.json
+++ b/packages/neos-ui-extensibility-webpack-adapter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-extensibility-webpack-adapter",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Minimal configuration, highly opinionated Webpack 4 + Babel plugin build stack for the Neos CMS UI",
   "repository": "neos/neos-ui",
   "bugs": "https://github.com/neos/neos-ui/issues",
@@ -36,5 +36,6 @@
       "babel-core": "^6.26.3",
       "typescript": "^4.6.4"
     }
-  }
+  },
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-extensibility/package.json b/packages/neos-ui-extensibility/package.json
index 1c1104f806..6c2b10d47f 100644
--- a/packages/neos-ui-extensibility/package.json
+++ b/packages/neos-ui-extensibility/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-extensibility",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Core of the extensibility mechanisms for the Neos UI",
   "repository": "neos/neos-ui",
   "bugs": "https://github.com/neos/neos-ui/issues",
@@ -22,5 +22,6 @@
   },
   "dependencies": {
     "@neos-project/positional-array-sorter": "workspace:*"
-  }
+  },
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-guest-frame/package.json b/packages/neos-ui-guest-frame/package.json
index 61ce3b322f..4178bd746a 100644
--- a/packages/neos-ui-guest-frame/package.json
+++ b/packages/neos-ui-guest-frame/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-guest-frame",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Guest frame initialization bindings",
   "private": true,
   "main": "./src/manifest.js",
@@ -28,5 +28,6 @@
     "react": "^16.12.0",
     "react-redux": "^7.1.3"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-i18n/package.json b/packages/neos-ui-i18n/package.json
index dd4227fa9f..81b82ce079 100644
--- a/packages/neos-ui-i18n/package.json
+++ b/packages/neos-ui-i18n/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-i18n",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "I18n utilities and components for Neos CMS UI.",
   "private": true,
   "main": "./src/index.tsx",
@@ -18,5 +18,6 @@
   "peerDependencies": {
     "react": "^16.12.0"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-inspector/package.json b/packages/neos-ui-inspector/package.json
index d25e7b86af..5e0d20edbe 100644
--- a/packages/neos-ui-inspector/package.json
+++ b/packages/neos-ui-inspector/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-inspector",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Components for integrating views and editors into the Neos CMS UI inspector.",
   "private": true,
   "main": "./src/index.js",
@@ -19,5 +19,6 @@
     "react": "^16.12.0",
     "react-redux": "^7.1.3"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-redux-store/package.json b/packages/neos-ui-redux-store/package.json
index 4ec2e6049d..f427a6b040 100644
--- a/packages/neos-ui-redux-store/package.json
+++ b/packages/neos-ui-redux-store/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-redux-store",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Redux store implementation for the Neos CMS UI",
   "private": true,
   "main": "./src/index.ts",
@@ -19,5 +19,6 @@
     "reselect": "^3.0.1",
     "typesafe-actions": "^5.1.0"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-sagas/package.json b/packages/neos-ui-sagas/package.json
index 4c4eedb0a4..5c4ba1a515 100644
--- a/packages/neos-ui-sagas/package.json
+++ b/packages/neos-ui-sagas/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-sagas",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Redux Sagas implementation for the Neos CMS UI",
   "private": true,
   "main": "src/index.js",
@@ -18,5 +18,6 @@
     "mousetrap": "^1.6.3",
     "redux-saga": "^0.15.0"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-validators/package.json b/packages/neos-ui-validators/package.json
index 8cb13efdfb..5c3122c777 100644
--- a/packages/neos-ui-validators/package.json
+++ b/packages/neos-ui-validators/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-validators",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Validators for Neos CMS UI.",
   "private": true,
   "main": "./src/index.ts",
@@ -18,5 +18,6 @@
   "peerDependencies": {
     "react": "^16.12.0"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui-views/package.json b/packages/neos-ui-views/package.json
index 1c9d2c50ce..0bfefe8851 100644
--- a/packages/neos-ui-views/package.json
+++ b/packages/neos-ui-views/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui-views",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Neos CMS UI Views for use in the inspector.",
   "main": "./src/index.js",
   "private": true,
@@ -27,5 +27,6 @@
     "react": "^16.12.0",
     "react-redux": "^7.1.3"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/neos-ui/package.json b/packages/neos-ui/package.json
index 14b54a56ff..b45bc324b7 100644
--- a/packages/neos-ui/package.json
+++ b/packages/neos-ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/neos-ui",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Neos CMS UI written in ReactJS and a ton of other fun technology.",
   "private": true,
   "devDependencies": {
@@ -64,5 +64,6 @@
     "reselect": "^3.0.1",
     "uuid": "^3.3.2"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/positional-array-sorter/package.json b/packages/positional-array-sorter/package.json
index d028ee1288..a3ad85b7a0 100644
--- a/packages/positional-array-sorter/package.json
+++ b/packages/positional-array-sorter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/positional-array-sorter",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Flexible array sorter that sorts an array according to a 'position' meta data.",
   "repository": "neos/neos-ui",
   "bugs": "https://github.com/neos/neos-ui/issues",
@@ -19,5 +19,6 @@
   "devDependencies": {
     "@neos-project/jest-preset-neos-ui": "workspace:*",
     "typescript": "^4.6.4"
-  }
+  },
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/react-proptypes/package.json b/packages/react-proptypes/package.json
index 747b08e3e2..c61e22b943 100644
--- a/packages/react-proptypes/package.json
+++ b/packages/react-proptypes/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/react-proptypes",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Neos CMS specific proptypes for react",
   "private": true,
   "main": "./src/index.js",
@@ -11,5 +11,6 @@
   "peerDependencies": {
     "prop-types": "^15.5.10"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/react-ui-components/package.json b/packages/react-ui-components/package.json
index 5e802a5c7d..1010b0be0f 100644
--- a/packages/react-ui-components/package.json
+++ b/packages/react-ui-components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/react-ui-components",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "The UI components which power the Neos backend application.",
   "repository": "neos/neos-ui",
   "bugs": "https://github.com/neos/neos-ui/issues",
@@ -95,5 +95,6 @@
     "stylelint": "^13.7.2",
     "typescript": "^4.6.0"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/utils-helpers/package.json b/packages/utils-helpers/package.json
index 7bba93fb5a..9cb34891ab 100644
--- a/packages/utils-helpers/package.json
+++ b/packages/utils-helpers/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/utils-helpers",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Helper functions for Neos CMS UI.",
   "private": true,
   "main": "./src/index.ts",
@@ -11,5 +11,6 @@
     "@neos-project/jest-preset-neos-ui": "workspace:*",
     "typescript": "^4.6.4"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/utils-logger/package.json b/packages/utils-logger/package.json
index 28ea7aaf35..fff849102c 100644
--- a/packages/utils-logger/package.json
+++ b/packages/utils-logger/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/utils-logger",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Logger implementation for Neos CMS UI.",
   "private": true,
   "main": "./src/index.ts",
@@ -11,5 +11,6 @@
     "@neos-project/jest-preset-neos-ui": "workspace:*",
     "typescript": "^4.6.4"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }
diff --git a/packages/utils-redux/package.json b/packages/utils-redux/package.json
index 582fcf0598..cce8e9e8e9 100644
--- a/packages/utils-redux/package.json
+++ b/packages/utils-redux/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@neos-project/utils-redux",
-  "version": "8.3.7",
+  "version": "9.0.0-beta8",
   "description": "Neos CMS UI Redux Helper utilitites",
   "private": true,
   "main": "./src/index.ts",
@@ -8,5 +8,6 @@
     "@neos-project/jest-preset-neos-ui": "workspace:*",
     "typescript": "^4.6.4"
   },
-  "license": "GNU GPLv3"
+  "license": "GNU GPLv3",
+  "stableVersion": "8.3.7"
 }