- Introduces Vue 3 core with a modular, tree‑shakable architecture, new Composition API, enhanced TypeScript integration, and substantial performance improvements.
- Marks a breaking change from Vue 2 – migration build and IE11 support are postponed, and router/Vuex devtools integration remain in progress.
- Adds experimental <script setup>, <style vars>, and <Suspense> features and updates documentation and npm tagging for the new version.
