diff --git a/package.json b/package.json
index 8b850b213e..60af35f0ba 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "kontena-lens",
   "productName": "Lens",
   "description": "Lens - The Kubernetes IDE",
-  "version": "3.6.6",
+  "version": "4.0.0-alpha.1",
   "main": "static/build/main.js",
   "copyright": "© 2020, Mirantis, Inc.",
   "license": "MIT",
diff --git a/static/RELEASE_NOTES.md b/static/RELEASE_NOTES.md
index 39d8b45aff..37196a413c 100644
--- a/static/RELEASE_NOTES.md
+++ b/static/RELEASE_NOTES.md
@@ -2,7 +2,17 @@
 
 Here you can find description of changes we've built into each release. While we try our best to make each upgrade automatic and as smooth as possible, there may be some cases where you might need to do something to ensure the application works smoothly. So please read through the release highlights!
 
-## 3.6.6 (current version)
+## 4.0.0-alpha.1 (current version)
+
+- Extension API
+- Improved pod logs
+- Tray icon
+- Add last-status information for container
+- Add LoadBalancer information to Ingress view
+- Move tracker to an extension
+- Add support page (as an extension)
+
+## 3.6.6
 - Fix labels' word boundary to cover only drawer badges
 - Fix cluster dashboard opening not to start authentication proxy twice
 - Fix: Refresh cluster connection status also when connection is disconnected