update changelog

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+* New structured code generation, which eliminates a number of edge cases and obscure bugs ([#3539](https://github.com/sveltejs/svelte/pull/3539))
+
+Also:
+
 * Fix `{#each}` context not shadowing outer scope when using `bind:` ([#1565](https://github.com/sveltejs/svelte/issues/1565))
 * Fix edge cases in matching selectors against elements ([#1710](https://github.com/sveltejs/svelte/issues/1710))
 * Fix several bugs related to interaction of `{...spread}` attributes with other features ([#2721](https://github.com/sveltejs/svelte/issues/2721), [#3421](https://github.com/sveltejs/svelte/issues/3421), [#3681](https://github.com/sveltejs/svelte/issues/3681), [#3764](https://github.com/sveltejs/svelte/issues/3764), [#3790](https://github.com/sveltejs/svelte/issues/3790))