diff --git a/CHANGELOG.md b/CHANGELOG.md
index 702d2e06d0..f59f1ad827 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## Unreleased
 
+* Only apply optimized `src` attribute handling when in an `html` namespace ([#6575](https://github.com/sveltejs/svelte/issues/6575))
 * Fix styles for transitions and animations being attached to the wrong `document` in `<iframe>`s ([#6637](https://github.com/sveltejs/svelte/issues/6637))
 * Fix `<select>` with a `{...spread}` attribute that didn't provide a `value` key getting its value improperly unset ([#6675](https://github.com/sveltejs/svelte/issues/6675))