update changelog

Author: T4rk1n

CHANGELOG.md

@@ -2,6 +2,14 @@
 All notable changes to `dash` will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/).
 
+## [UNRELEASED]
+
+## Added
+- [#3541](https://github.com/plotly/dash/pull/3541) Add `attributes` dictionary to be be formatted on script/link (_js_dist/_css_dist) tags of the index, allows for `type="module"` or `type="importmap"`. [#3538](https://github.com/plotly/dash/issues/3538)
+
+## Fixed
+- [#3541](https://github.com/plotly/dash/pull/3541) Remove last reference of deprecated `pkg_resources`.
+
 ## [3.3.0] - 2025-11-12
 
 ## Added