diff --git a/src/content/blog/2024/04/01/react-19.md b/src/content/blog/2024/04/01/react-19.md
index bb2c94db5..de668a915 100644
--- a/src/content/blog/2024/04/01/react-19.md
+++ b/src/content/blog/2024/04/01/react-19.md
@@ -673,7 +673,15 @@ For more info and examples, see the docs for [`createRoot`](/reference/react-dom
 
 ### Custom Element Support {/*support-for-web-components*/}
 
-TODO
+Custom Elements have been part of the web platform for a long while now however using them with React has been impractical because React has always treated unrecognized props as attributes rather than properties.
+
+React 19 adds support for custom elements and passes all tests on [Custom Elements Everywhere](https://custom-elements-everywhere.com/)
+
+During Server Side Rendering props passed to a custom element will render as attributes if their type is a `"string"`, `"number"`, or the value is `true`. props with type `"object"`, `"symbol"`, `"function"`, or value `false` will be omitted.
+
+During Client Side Rendering props that match a property on the Custom Element instance will be assigned as properties, otherwise they will be assigned as attributes.
+
+Thanks [Joey Arhar](https://github.com/josepharhar) for driving the design and implementation of Custom Element support in React.
 
 
 #### How to Upgrade {/*how-to-upgrade*/}