diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+## 5.2.0-beta.40 (August 23, 2019)
+
+### Bug Fixes
+
+* Addon-docs: Fix DocsPage primary story switching ([#7849](https://github.com/storybookjs/storybook/pull/7849))
+* Source-loader: Selectively ignore typescript errors in generated code ([#7845](https://github.com/storybookjs/storybook/pull/7845))
+* Addon-docs: Force hidden attribute on #root element ([#7841](https://github.com/storybookjs/storybook/pull/7841))
+
+### Maintenance
+
+* Remove temporarily added --no-dll option on examples ([#7647](https://github.com/storybookjs/storybook/pull/7647))
+
 ## 5.2.0-beta.39 (August 22, 2019)
 
 ### Bug Fixes