diff --git a/addons/a11y/package.json b/addons/a11y/package.json
index 1209b27b46d2..3ea6b9cd4d48 100644
--- a/addons/a11y/package.json
+++ b/addons/a11y/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-a11y",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "a11y addon for storybook",
   "keywords": [
     "a11y",
@@ -29,10 +29,10 @@
   },
   "dependencies": {
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/client-logger": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/client-logger": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
     "axe-core": "^3.1.2",
     "global": "^4.3.2",
     "prop-types": "^15.6.2"
diff --git a/addons/actions/package.json b/addons/actions/package.json
index 289015e67e19..5a77d4dc8538 100644
--- a/addons/actions/package.json
+++ b/addons/actions/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-actions",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Action Logger addon for storybook",
   "keywords": [
     "storybook"
@@ -26,9 +26,9 @@
     "@emotion/core": "^0.13.1",
     "@emotion/provider": "^0.11.2",
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
     "deep-equal": "^1.0.1",
     "global": "^4.3.2",
     "lodash": "^4.17.11",
diff --git a/addons/backgrounds/package.json b/addons/backgrounds/package.json
index 01782d8848d0..8132a3edb531 100644
--- a/addons/backgrounds/package.json
+++ b/addons/backgrounds/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-backgrounds",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "A storybook addon to show different backgrounds for your preview",
   "keywords": [
     "addon",
@@ -28,8 +28,8 @@
   },
   "dependencies": {
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
     "global": "^4.3.2",
     "prop-types": "^15.6.2",
     "util-deprecate": "^1.0.2"
diff --git a/addons/centered/package.json b/addons/centered/package.json
index c7b16276f1eb..78b581b03c37 100644
--- a/addons/centered/package.json
+++ b/addons/centered/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-centered",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook decorator to center components",
   "keywords": [
     "addon",
diff --git a/addons/events/package.json b/addons/events/package.json
index ef249a3b2797..dc1c81da98fd 100644
--- a/addons/events/package.json
+++ b/addons/events/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-events",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Add events to your Storybook stories.",
   "keywords": [
     "addon",
@@ -27,8 +27,8 @@
   },
   "dependencies": {
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
     "format-json": "^1.0.3",
     "prop-types": "^15.6.2",
     "react-lifecycles-compat": "^3.0.4",
diff --git a/addons/google-analytics/package.json b/addons/google-analytics/package.json
index e446bdffa676..d1972f312a8b 100644
--- a/addons/google-analytics/package.json
+++ b/addons/google-analytics/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-google-analytics",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook addon for google analytics",
   "keywords": [
     "addon",
@@ -24,7 +24,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
     "global": "^4.3.2",
     "react-ga": "^2.5.3"
   }
diff --git a/addons/graphql/package.json b/addons/graphql/package.json
index 2c76bb692960..b16266cb5e30 100644
--- a/addons/graphql/package.json
+++ b/addons/graphql/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-graphql",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook addon to display the GraphiQL IDE",
   "keywords": [
     "addon",
diff --git a/addons/info/package.json b/addons/info/package.json
index b523c55feeb4..8a209835dc13 100644
--- a/addons/info/package.json
+++ b/addons/info/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-info",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "A Storybook addon to show additional information for your stories.",
   "keywords": [
     "addon",
@@ -25,9 +25,9 @@
   },
   "dependencies": {
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/client-logger": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/client-logger": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
     "core-js": "2.5.7",
     "global": "^4.3.2",
     "marksy": "^6.1.0",
diff --git a/addons/jest/package.json b/addons/jest/package.json
index ff87f452e6ef..e9ce4ac86035 100644
--- a/addons/jest/package.json
+++ b/addons/jest/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-jest",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "React storybook addon that show component jest report",
   "keywords": [
     "addon",
@@ -31,8 +31,8 @@
   },
   "dependencies": {
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
     "global": "^4.3.2",
     "prop-types": "^15.6.2",
     "upath": "^1.1.0",
diff --git a/addons/knobs/package.json b/addons/knobs/package.json
index f6f7056f8179..8c3f019eb175 100644
--- a/addons/knobs/package.json
+++ b/addons/knobs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-knobs",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook Addon Prop Editor Component",
   "keywords": [
     "addon",
@@ -25,9 +25,9 @@
   },
   "dependencies": {
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
     "copy-to-clipboard": "^3.0.8",
     "escape-html": "^1.0.3",
     "fast-deep-equal": "^2.0.1",
diff --git a/addons/links/package.json b/addons/links/package.json
index 49a2788514e7..891d7808e91f 100644
--- a/addons/links/package.json
+++ b/addons/links/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-links",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Story Links addon for storybook",
   "keywords": [
     "addon",
@@ -24,9 +24,9 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
     "global": "^4.3.2",
     "prop-types": "^15.6.2"
   },
diff --git a/addons/notes/package.json b/addons/notes/package.json
index ea4bd354b671..183d46bc92f9 100644
--- a/addons/notes/package.json
+++ b/addons/notes/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-notes",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Write notes for your Storybook stories.",
   "keywords": [
     "addon",
@@ -26,7 +26,7 @@
   },
   "dependencies": {
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
     "marked": "^0.5.1",
     "prop-types": "^15.6.2"
   },
diff --git a/addons/ondevice-backgrounds/package.json b/addons/ondevice-backgrounds/package.json
index 9187ff0a6364..9c7bc9f88b0c 100644
--- a/addons/ondevice-backgrounds/package.json
+++ b/addons/ondevice-backgrounds/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-ondevice-backgrounds",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "A storybook addon to show different backgrounds for your preview",
   "keywords": [
     "addon",
@@ -26,7 +26,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
     "prop-types": "^15.6.2"
   },
   "peerDependencies": {
diff --git a/addons/ondevice-knobs/package.json b/addons/ondevice-knobs/package.json
index 10faf20fcc71..4d4723e55612 100644
--- a/addons/ondevice-knobs/package.json
+++ b/addons/ondevice-knobs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-ondevice-knobs",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Display storybook story knobs on your deviced.",
   "keywords": [
     "addon",
@@ -23,7 +23,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
     "deep-equal": "^1.0.1",
     "prop-types": "^15.6.2",
     "react-native-color-picker": "^0.4.0",
diff --git a/addons/ondevice-notes/package.json b/addons/ondevice-notes/package.json
index edf133030681..e5421e46fc80 100644
--- a/addons/ondevice-notes/package.json
+++ b/addons/ondevice-notes/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-ondevice-notes",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Write notes for your Storybook stories.",
   "keywords": [
     "addon",
@@ -21,7 +21,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
     "prop-types": "^15.6.2",
     "react-native-simple-markdown": "^1.1.0"
   },
diff --git a/addons/options/package.json b/addons/options/package.json
index bf46482edca4..6307acd3696d 100644
--- a/addons/options/package.json
+++ b/addons/options/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-options",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Options addon for storybook",
   "keywords": [
     "addon",
@@ -23,7 +23,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
     "util-deprecate": "^1.0.2"
   },
   "peerDependencies": {
diff --git a/addons/storyshots/storyshots-core/package.json b/addons/storyshots/storyshots-core/package.json
index d44e1fff3346..e09c97f6eb67 100644
--- a/addons/storyshots/storyshots-core/package.json
+++ b/addons/storyshots/storyshots-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-storyshots",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "StoryShots is a Jest Snapshot Testing Addon for Storybook.",
   "keywords": [
     "addon",
@@ -28,17 +28,17 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@storybook/addons": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
     "glob": "^7.1.3",
     "global": "^4.3.2",
     "jest-specific-snapshot": "^1.0.0",
     "read-pkg-up": "^4.0.0"
   },
   "devDependencies": {
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
     "@storybook/addons": "4.0.0-alpha.24",
-    "@storybook/react": "4.0.0-rc.1",
+    "@storybook/react": "4.0.0-rc.2",
     "enzyme-to-json": "^3.3.4",
     "react": "^16.5.2"
   }
diff --git a/addons/storyshots/storyshots-puppeteer/package.json b/addons/storyshots/storyshots-puppeteer/package.json
index 9f21ec2de681..f9b23dfa3e87 100644
--- a/addons/storyshots/storyshots-puppeteer/package.json
+++ b/addons/storyshots/storyshots-puppeteer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-storyshots-puppeteer",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Image snappshots addition to StoryShots base on puppeteer",
   "keywords": [
     "addon",
@@ -25,7 +25,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@storybook/node-logger": "4.0.0-rc.1",
+    "@storybook/node-logger": "4.0.0-rc.2",
     "jest-image-snapshot": "^2.6.0",
     "puppeteer": "^1.9.0"
   },
diff --git a/addons/storysource/package.json b/addons/storysource/package.json
index 95ef900d7d72..dbd82096ce26 100644
--- a/addons/storysource/package.json
+++ b/addons/storysource/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-storysource",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Stories addon for storybook",
   "keywords": [
     "addon",
@@ -25,8 +25,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
     "estraverse": "^4.2.0",
     "loader-utils": "^1.1.0",
     "prettier": "^1.14.3",
diff --git a/addons/viewport/package.json b/addons/viewport/package.json
index cfa1d3be6546..d66316cb143b 100644
--- a/addons/viewport/package.json
+++ b/addons/viewport/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addon-viewport",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook addon to change the viewport size to mobile",
   "keywords": [
     "addon",
@@ -24,9 +24,9 @@
   },
   "dependencies": {
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
     "global": "^4.3.2",
     "prop-types": "^15.6.2",
     "util-deprecate": "^1.0.2"
diff --git a/app/angular/package.json b/app/angular/package.json
index 9483f420b09b..95130c814541 100644
--- a/app/angular/package.json
+++ b/app/angular/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/angular",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for Angular: Develop Angular Components in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -29,8 +29,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@storybook/core": "4.0.0-rc.1",
-    "@storybook/node-logger": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
+    "@storybook/node-logger": "4.0.0-rc.2",
     "angular2-template-loader": "^0.6.2",
     "core-js": "^2.5.7",
     "fork-ts-checker-webpack-plugin": "^0.4.10",
diff --git a/app/ember/package.json b/app/ember/package.json
index 0955f42badb8..883abe52f9f9 100644
--- a/app/ember/package.json
+++ b/app/ember/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/ember",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for Ember: Develop Ember Component in isolation with Hot Reloading.",
   "homepage": "https://github.com/storybooks/storybook/tree/master/app/ember",
   "publishConfig": {
@@ -27,7 +27,7 @@
   "dependencies": {
     "@babel/runtime": "^7.1.2",
     "@ember/test-helpers": "^0.7.27",
-    "@storybook/core": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
     "common-tags": "^1.8.0",
     "global": "^4.3.2",
     "react": "^16.5.2",
diff --git a/app/html/package.json b/app/html/package.json
index 89ee832231ba..633673530ef6 100644
--- a/app/html/package.json
+++ b/app/html/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/html",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for HTML: View HTML snippets in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -28,7 +28,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@storybook/core": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
     "common-tags": "^1.8.0",
     "global": "^4.3.2",
     "html-loader": "^0.5.5",
diff --git a/app/marko/package.json b/app/marko/package.json
index 80ffad98ee39..0f59fab5d52f 100644
--- a/app/marko/package.json
+++ b/app/marko/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/marko",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for Marko: Develop Marko Component in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -29,7 +29,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@storybook/core": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
     "common-tags": "^1.8.0",
     "global": "^4.3.2",
     "marko-loader": "^1.3.3",
diff --git a/app/mithril/package.json b/app/mithril/package.json
index cc0f835a7052..553311188862 100644
--- a/app/mithril/package.json
+++ b/app/mithril/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/mithril",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for Mithril: Develop Mithril Component in isolation.",
   "keywords": [
     "storybook"
@@ -30,7 +30,7 @@
   "dependencies": {
     "@babel/plugin-transform-react-jsx": "^7.0.0",
     "@babel/runtime": "^7.1.2",
-    "@storybook/core": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
     "common-tags": "^1.8.0",
     "global": "^4.3.2",
     "react": "^16.5.2",
diff --git a/app/polymer/package.json b/app/polymer/package.json
index 8401651695d0..9b48e566a2dc 100644
--- a/app/polymer/package.json
+++ b/app/polymer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/polymer",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for Polymer: Develop Polymer components in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -29,7 +29,7 @@
   "dependencies": {
     "@babel/polyfill": "^7.0.0",
     "@babel/runtime": "^7.1.2",
-    "@storybook/core": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
     "@webcomponents/webcomponentsjs": "^1.2.0",
     "common-tags": "^1.8.0",
     "global": "^4.3.2",
diff --git a/app/react-native/package.json b/app/react-native/package.json
index 95edc8c1a949..c68576bf6bc1 100644
--- a/app/react-native/package.json
+++ b/app/react-native/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/react-native",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "A better way to develop React Native Components for your app",
   "keywords": [
     "react",
@@ -28,12 +28,12 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/channel-websocket": "4.0.0-rc.1",
-    "@storybook/channels": "4.0.0-rc.1",
-    "@storybook/core": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
-    "@storybook/ui": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/channel-websocket": "4.0.0-rc.2",
+    "@storybook/channels": "4.0.0-rc.2",
+    "@storybook/core": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
+    "@storybook/ui": "4.0.0-rc.2",
     "babel-loader": "^8.0.4",
     "babel-plugin-macros": "^2.4.2",
     "babel-plugin-syntax-async-functions": "^6.13.0",
diff --git a/app/react/package.json b/app/react/package.json
index e58239f6b1f6..eb955d9af7a0 100644
--- a/app/react/package.json
+++ b/app/react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/react",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for React: Develop React Component in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -32,7 +32,7 @@
     "@babel/preset-react": "^7.0.0",
     "@babel/runtime": "^7.1.2",
     "@emotion/styled": "^0.10.6",
-    "@storybook/core": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
     "@storybook/node-logger": "^3.4.11",
     "babel-plugin-react-docgen": "^2.0.0",
     "common-tags": "^1.8.0",
diff --git a/app/riot/package.json b/app/riot/package.json
index d9cf43222ded..7330efa826b4 100644
--- a/app/riot/package.json
+++ b/app/riot/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/riot",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for riot.js: View riot snippets in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -28,7 +28,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@storybook/core": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
     "common-tags": "^1.8.0",
     "global": "^4.3.2",
     "raw-loader": "^0.5.1",
diff --git a/app/svelte/package.json b/app/svelte/package.json
index 50eb6e5ce22a..246c8fe0d784 100644
--- a/app/svelte/package.json
+++ b/app/svelte/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/svelte",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for Svelte: Develop Svelte Component in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -28,7 +28,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/core": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
     "common-tags": "^1.8.0",
     "global": "^4.3.2",
     "react": "^16.5.2",
diff --git a/app/vue/package.json b/app/vue/package.json
index 459db6d1f768..a2294200e919 100644
--- a/app/vue/package.json
+++ b/app/vue/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/vue",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook for Vue: Develop Vue Component in isolation with Hot Reloading.",
   "keywords": [
     "storybook"
@@ -29,7 +29,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@storybook/core": "4.0.0-rc.1",
+    "@storybook/core": "4.0.0-rc.2",
     "common-tags": "^1.8.0",
     "global": "^4.3.2",
     "react": "^16.5.2",
diff --git a/examples/angular-cli/package.json b/examples/angular-cli/package.json
index 890662ac1b6e..7eb88fe58ec5 100644
--- a/examples/angular-cli/package.json
+++ b/examples/angular-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "angular-cli",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "license": "MIT",
   "scripts": {
@@ -54,18 +54,18 @@
     "@angular-devkit/build-angular": "^0.8.5",
     "@angular/cli": "^6.2.5",
     "@angular/compiler-cli": "^6.1.10",
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-jest": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storyshots": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/angular": "4.0.0-rc.1",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-jest": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storyshots": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/angular": "4.0.0-rc.2",
     "@types/core-js": "^2.5.0",
     "@types/jest": "^23.3.5",
     "@types/node": "~10.12.0",
diff --git a/examples/cra-kitchen-sink/package.json b/examples/cra-kitchen-sink/package.json
index dfbe3f1d8915..d78806ca7f23 100644
--- a/examples/cra-kitchen-sink/package.json
+++ b/examples/cra-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cra-kitchen-sink",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "scripts": {
     "build": "react-scripts build",
@@ -18,21 +18,21 @@
     "react-lifecycles-compat": "^3.0.4"
   },
   "devDependencies": {
-    "@storybook/addon-a11y": "4.0.0-rc.1",
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-events": "4.0.0-rc.1",
-    "@storybook/addon-info": "4.0.0-rc.1",
-    "@storybook/addon-jest": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storyshots": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/client-logger": "4.0.0-rc.1",
-    "@storybook/react": "4.0.0-rc.1",
+    "@storybook/addon-a11y": "4.0.0-rc.2",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-events": "4.0.0-rc.2",
+    "@storybook/addon-info": "4.0.0-rc.2",
+    "@storybook/addon-jest": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storyshots": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/client-logger": "4.0.0-rc.2",
+    "@storybook/react": "4.0.0-rc.2",
     "enzyme": "^3.7.0",
     "enzyme-adapter-react-16": "^1.6.0",
     "enzyme-to-json": "^3.3.4",
diff --git a/examples/ember-cli/package.json b/examples/ember-cli/package.json
index 31e34feebe86..11f26a1dd303 100644
--- a/examples/ember-cli/package.json
+++ b/examples/ember-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ember-example",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "scripts": {
     "build": "ember build",
@@ -10,18 +10,18 @@
   },
   "devDependencies": {
     "@babel/core": "^7.1.2",
-    "@storybook/addon-a11y": "4.0.0-rc.1",
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addon-viewport": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/ember": "4.0.0-rc.1",
+    "@storybook/addon-a11y": "4.0.0-rc.2",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addon-viewport": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/ember": "4.0.0-rc.2",
     "babel-loader": "^8",
     "broccoli-asset-rev": "^3.0.0",
     "cross-env": "^5.2.0",
diff --git a/examples/html-kitchen-sink/package.json b/examples/html-kitchen-sink/package.json
index a433fc30de54..b672b2ae5b2b 100644
--- a/examples/html-kitchen-sink/package.json
+++ b/examples/html-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "html-kitchen-sink",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "description": "",
   "keywords": [],
@@ -13,23 +13,23 @@
     "storybook": "start-storybook -p 9006"
   },
   "devDependencies": {
-    "@storybook/addon-a11y": "4.0.0-rc.1",
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-events": "4.0.0-rc.1",
-    "@storybook/addon-jest": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storyshots": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addon-viewport": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/core": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
-    "@storybook/html": "4.0.0-rc.1",
+    "@storybook/addon-a11y": "4.0.0-rc.2",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-events": "4.0.0-rc.2",
+    "@storybook/addon-jest": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storyshots": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addon-viewport": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/core": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
+    "@storybook/html": "4.0.0-rc.2",
     "eventemitter3": "^3.1.0",
     "format-json": "^1.0.3",
     "global": "^4.3.2",
diff --git a/examples/marko-cli/package.json b/examples/marko-cli/package.json
index 29374506a857..17479115fd00 100644
--- a/examples/marko-cli/package.json
+++ b/examples/marko-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "marko-cli",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "description": "Demo of how to build an app using marko-starter",
   "repository": {
@@ -22,12 +22,12 @@
     "marko-starter": "^2.0.4"
   },
   "devDependencies": {
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/marko": "4.0.0-rc.1",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/marko": "4.0.0-rc.2",
     "prettier": "^1.14.3",
     "webpack": "^4.21.0"
   }
diff --git a/examples/mithril-kitchen-sink/package.json b/examples/mithril-kitchen-sink/package.json
index 389590608d31..ccba16641061 100644
--- a/examples/mithril-kitchen-sink/package.json
+++ b/examples/mithril-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mithril-example",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "scripts": {
     "build-storybook": "build-storybook",
@@ -10,18 +10,18 @@
     "mithril": "^1.1.6"
   },
   "devDependencies": {
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storyshots": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addon-viewport": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/mithril": "4.0.0-rc.1",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storyshots": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addon-viewport": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/mithril": "4.0.0-rc.2",
     "webpack": "^4.21.0"
   }
 }
diff --git a/examples/official-storybook/package.json b/examples/official-storybook/package.json
index f9a8d4e7d463..955bf745c11d 100644
--- a/examples/official-storybook/package.json
+++ b/examples/official-storybook/package.json
@@ -1,6 +1,6 @@
 {
   "name": "official-storybook",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "scripts": {
     "build-storybook": "build-storybook -c ./ -s built-storybooks",
@@ -15,27 +15,27 @@
     "@emotion/core": "^0.13.1",
     "@emotion/provider": "^0.11.2",
     "@emotion/styled": "^0.10.6",
-    "@storybook/addon-a11y": "4.0.0-rc.1",
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-events": "4.0.0-rc.1",
-    "@storybook/addon-graphql": "4.0.0-rc.1",
-    "@storybook/addon-info": "4.0.0-rc.1",
-    "@storybook/addon-jest": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storyshots": "4.0.0-rc.1",
-    "@storybook/addon-storyshots-puppeteer": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addon-viewport": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
-    "@storybook/node-logger": "4.0.0-rc.1",
-    "@storybook/react": "4.0.0-rc.1",
+    "@storybook/addon-a11y": "4.0.0-rc.2",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-events": "4.0.0-rc.2",
+    "@storybook/addon-graphql": "4.0.0-rc.2",
+    "@storybook/addon-info": "4.0.0-rc.2",
+    "@storybook/addon-jest": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storyshots": "4.0.0-rc.2",
+    "@storybook/addon-storyshots-puppeteer": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addon-viewport": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
+    "@storybook/node-logger": "4.0.0-rc.2",
+    "@storybook/react": "4.0.0-rc.2",
     "cors": "^2.8.4",
     "cross-env": "^5.2.0",
     "enzyme-to-json": "^3.3.4",
diff --git a/examples/polymer-cli/package.json b/examples/polymer-cli/package.json
index d24c6ee94544..539cc98d1e47 100644
--- a/examples/polymer-cli/package.json
+++ b/examples/polymer-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "polymer-cli",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "scripts": {
     "build-storybook": "build-storybook",
@@ -9,15 +9,15 @@
   },
   "dependencies": {
     "@polymer/polymer": "^2.6.0",
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addon-viewport": "4.0.0-rc.1",
-    "@storybook/polymer": "4.0.0-rc.1",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addon-viewport": "4.0.0-rc.2",
+    "@storybook/polymer": "4.0.0-rc.2",
     "@webcomponents/webcomponentsjs": "^1.2.0",
     "global": "^4.3.2",
     "lit-html": "^0.12.0",
diff --git a/examples/riot-kitchen-sink/package.json b/examples/riot-kitchen-sink/package.json
index d690f18f1f56..b58823c74639 100644
--- a/examples/riot-kitchen-sink/package.json
+++ b/examples/riot-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "riot-example",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "scripts": {
     "build": "cross-env NODE_ENV=production webpack --progress --hide-modules",
@@ -15,18 +15,18 @@
   },
   "devDependencies": {
     "@babel/core": "^7.1.2",
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storyshots": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addon-viewport": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/riot": "4.0.0-rc.1",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storyshots": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addon-viewport": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/riot": "4.0.0-rc.2",
     "babel-loader": "^8.0.4",
     "cross-env": "^5.2.0",
     "file-loader": "^2.0.0",
diff --git a/examples/svelte-kitchen-sink/package.json b/examples/svelte-kitchen-sink/package.json
index a6e5050b49ec..c8017b441332 100644
--- a/examples/svelte-kitchen-sink/package.json
+++ b/examples/svelte-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "svelte-example",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "scripts": {
     "build-storybook": "build-storybook -s public",
@@ -10,17 +10,17 @@
     "global": "^4.3.2"
   },
   "devDependencies": {
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storyshots": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addon-viewport": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/svelte": "4.0.0-rc.1"
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storyshots": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addon-viewport": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/svelte": "4.0.0-rc.2"
   }
 }
diff --git a/examples/vue-kitchen-sink/package.json b/examples/vue-kitchen-sink/package.json
index e714951b6144..b470de64f47a 100644
--- a/examples/vue-kitchen-sink/package.json
+++ b/examples/vue-kitchen-sink/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-example",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "private": true,
   "scripts": {
     "build": "cross-env NODE_ENV=production webpack --progress --hide-modules",
@@ -14,18 +14,18 @@
   },
   "devDependencies": {
     "@babel/core": "^7.1.2",
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-backgrounds": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storyshots": "4.0.0-rc.1",
-    "@storybook/addon-storysource": "4.0.0-rc.1",
-    "@storybook/addon-viewport": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/vue": "4.0.0-rc.1",
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-backgrounds": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storyshots": "4.0.0-rc.2",
+    "@storybook/addon-storysource": "4.0.0-rc.2",
+    "@storybook/addon-viewport": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/vue": "4.0.0-rc.2",
     "babel-core": "^7.0.0-bridge.0",
     "babel-loader": "^8.0.4",
     "cross-env": "^5.2.0",
diff --git a/lerna.json b/lerna.json
index 75c9c0308566..4ed46ff42164 100644
--- a/lerna.json
+++ b/lerna.json
@@ -7,5 +7,5 @@
   "npmClient": "yarn",
   "useWorkspaces": true,
   "registry": "https://registry.npmjs.org",
-  "version": "4.0.0-rc.1"
+  "version": "4.0.0-rc.2"
 }
diff --git a/lib/addons/package.json b/lib/addons/package.json
index 0a342b4240d9..9efd5e4658af 100644
--- a/lib/addons/package.json
+++ b/lib/addons/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/addons",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook addons store",
   "keywords": [
     "storybook"
@@ -23,8 +23,8 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/channels": "4.0.0-rc.1",
-    "@storybook/components": "4.0.0-rc.1",
+    "@storybook/channels": "4.0.0-rc.2",
+    "@storybook/components": "4.0.0-rc.2",
     "global": "^4.3.2",
     "util-deprecate": "^1.0.2"
   }
diff --git a/lib/channel-postmessage/package.json b/lib/channel-postmessage/package.json
index d2e8db7d2651..df8a61af25cc 100644
--- a/lib/channel-postmessage/package.json
+++ b/lib/channel-postmessage/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/channel-postmessage",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "",
   "keywords": [
     "storybook"
@@ -23,7 +23,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/channels": "4.0.0-rc.1",
+    "@storybook/channels": "4.0.0-rc.2",
     "global": "^4.3.2",
     "json-stringify-safe": "^5.0.1"
   }
diff --git a/lib/channel-websocket/package.json b/lib/channel-websocket/package.json
index e649725f8cd3..1bf33d907953 100644
--- a/lib/channel-websocket/package.json
+++ b/lib/channel-websocket/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/channel-websocket",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "",
   "keywords": [
     "storybook"
@@ -23,7 +23,7 @@
     "prepare": "node ../../scripts/prepare.js"
   },
   "dependencies": {
-    "@storybook/channels": "4.0.0-rc.1",
+    "@storybook/channels": "4.0.0-rc.2",
     "global": "^4.3.2"
   }
 }
diff --git a/lib/channels/package.json b/lib/channels/package.json
index ea1e9cde046f..b675cf000ef0 100644
--- a/lib/channels/package.json
+++ b/lib/channels/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/channels",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "",
   "keywords": [
     "storybook"
diff --git a/lib/cli/package.json b/lib/cli/package.json
index 8f418ed87f94..0fd0d13ff7a7 100644
--- a/lib/cli/package.json
+++ b/lib/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/cli",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook's CLI - easiest method of adding storybook to your projects",
   "keywords": [
     "cli",
@@ -34,7 +34,7 @@
     "@babel/preset-env": "^7.1.0",
     "@babel/register": "^7.0.0",
     "@babel/runtime": "^7.1.2",
-    "@storybook/codemod": "4.0.0-rc.1",
+    "@storybook/codemod": "4.0.0-rc.2",
     "chalk": "^2.4.1",
     "child-process-promise": "^2.2.1",
     "commander": "^2.19.0",
@@ -48,29 +48,29 @@
     "update-notifier": "^2.5.0"
   },
   "devDependencies": {
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-centered": "4.0.0-rc.1",
-    "@storybook/addon-graphql": "4.0.0-rc.1",
-    "@storybook/addon-info": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/addon-links": "4.0.0-rc.1",
-    "@storybook/addon-notes": "4.0.0-rc.1",
-    "@storybook/addon-options": "4.0.0-rc.1",
-    "@storybook/addon-storyshots": "4.0.0-rc.1",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/angular": "4.0.0-rc.1",
-    "@storybook/channel-postmessage": "4.0.0-rc.1",
-    "@storybook/channel-websocket": "4.0.0-rc.1",
-    "@storybook/channels": "4.0.0-rc.1",
-    "@storybook/ember": "4.0.0-rc.1",
-    "@storybook/html": "4.0.0-rc.1",
-    "@storybook/marko": "4.0.0-rc.1",
-    "@storybook/mithril": "4.0.0-rc.1",
-    "@storybook/polymer": "4.0.0-rc.1",
-    "@storybook/react": "4.0.0-rc.1",
-    "@storybook/react-native": "4.0.0-rc.1",
-    "@storybook/riot": "4.0.0-rc.1",
-    "@storybook/ui": "4.0.0-rc.1",
-    "@storybook/vue": "4.0.0-rc.1"
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-centered": "4.0.0-rc.2",
+    "@storybook/addon-graphql": "4.0.0-rc.2",
+    "@storybook/addon-info": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/addon-links": "4.0.0-rc.2",
+    "@storybook/addon-notes": "4.0.0-rc.2",
+    "@storybook/addon-options": "4.0.0-rc.2",
+    "@storybook/addon-storyshots": "4.0.0-rc.2",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/angular": "4.0.0-rc.2",
+    "@storybook/channel-postmessage": "4.0.0-rc.2",
+    "@storybook/channel-websocket": "4.0.0-rc.2",
+    "@storybook/channels": "4.0.0-rc.2",
+    "@storybook/ember": "4.0.0-rc.2",
+    "@storybook/html": "4.0.0-rc.2",
+    "@storybook/marko": "4.0.0-rc.2",
+    "@storybook/mithril": "4.0.0-rc.2",
+    "@storybook/polymer": "4.0.0-rc.2",
+    "@storybook/react": "4.0.0-rc.2",
+    "@storybook/react-native": "4.0.0-rc.2",
+    "@storybook/riot": "4.0.0-rc.2",
+    "@storybook/ui": "4.0.0-rc.2",
+    "@storybook/vue": "4.0.0-rc.2"
   }
 }
diff --git a/lib/client-logger/package.json b/lib/client-logger/package.json
index 4e5f5301fba4..688aa4f65ec4 100644
--- a/lib/client-logger/package.json
+++ b/lib/client-logger/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/client-logger",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "",
   "keywords": [
     "storybook"
diff --git a/lib/codemod/package.json b/lib/codemod/package.json
index fe73c5899b57..a7e65e7b78fe 100644
--- a/lib/codemod/package.json
+++ b/lib/codemod/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/codemod",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "A collection of codemod scripts written with JSCodeshift",
   "keywords": [
     "storybook"
diff --git a/lib/components/package.json b/lib/components/package.json
index 33e2184b6e19..d17537bb358b 100644
--- a/lib/components/package.json
+++ b/lib/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/components",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Core Storybook Components",
   "keywords": [
     "storybook"
@@ -37,9 +37,9 @@
     "render-fragment": "^0.1.1"
   },
   "devDependencies": {
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/addon-knobs": "4.0.0-rc.1",
-    "@storybook/react": "4.0.0-rc.1"
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/addon-knobs": "4.0.0-rc.2",
+    "@storybook/react": "4.0.0-rc.2"
   },
   "peerDependencies": {
     "react": "*",
diff --git a/lib/core-events/package.json b/lib/core-events/package.json
index 2ed21cb2ad9c..a5c0f28f0d96 100644
--- a/lib/core-events/package.json
+++ b/lib/core-events/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/core-events",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Event names used in storybook core",
   "keywords": [
     "storybook"
diff --git a/lib/core/package.json b/lib/core/package.json
index 0797a93eff83..38215fb4686c 100644
--- a/lib/core/package.json
+++ b/lib/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/core",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Storybook framework-agnostic API",
   "keywords": [
     "storybook"
@@ -30,12 +30,12 @@
     "@emotion/core": "^0.13.1",
     "@emotion/provider": "^0.11.2",
     "@emotion/styled": "^0.10.6",
-    "@storybook/addons": "4.0.0-rc.1",
-    "@storybook/channel-postmessage": "4.0.0-rc.1",
-    "@storybook/client-logger": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
-    "@storybook/node-logger": "4.0.0-rc.1",
-    "@storybook/ui": "4.0.0-rc.1",
+    "@storybook/addons": "4.0.0-rc.2",
+    "@storybook/channel-postmessage": "4.0.0-rc.2",
+    "@storybook/client-logger": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
+    "@storybook/node-logger": "4.0.0-rc.2",
+    "@storybook/ui": "4.0.0-rc.2",
     "airbnb-js-shims": "^1 || ^2",
     "autoprefixer": "^9.2.1",
     "babel-plugin-macros": "^2.4.2",
diff --git a/lib/node-logger/package.json b/lib/node-logger/package.json
index a6815e476710..484f590a45a4 100644
--- a/lib/node-logger/package.json
+++ b/lib/node-logger/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/node-logger",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "",
   "keywords": [
     "storybook"
diff --git a/lib/ui/package.json b/lib/ui/package.json
index c8ea886305b1..44f68560c24f 100644
--- a/lib/ui/package.json
+++ b/lib/ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@storybook/ui",
-  "version": "4.0.0-rc.1",
+  "version": "4.0.0-rc.2",
   "description": "Core Storybook UI",
   "keywords": [
     "storybook"
@@ -28,8 +28,8 @@
     "@emotion/core": "^0.13.1",
     "@emotion/provider": "^0.11.2",
     "@emotion/styled": "^0.10.6",
-    "@storybook/components": "4.0.0-rc.1",
-    "@storybook/core-events": "4.0.0-rc.1",
+    "@storybook/components": "4.0.0-rc.2",
+    "@storybook/core-events": "4.0.0-rc.2",
     "@storybook/mantra-core": "^1.7.2",
     "@storybook/podda": "^1.2.3",
     "@storybook/react-komposer": "^2.0.4",
@@ -47,8 +47,8 @@
     "react-treebeard": "^3.1.0"
   },
   "devDependencies": {
-    "@storybook/addon-actions": "4.0.0-rc.1",
-    "@storybook/react": "4.0.0-rc.1"
+    "@storybook/addon-actions": "4.0.0-rc.2",
+    "@storybook/react": "4.0.0-rc.2"
   },
   "peerDependencies": {
     "react": "*",