Vue 3.4 Released – What You Need to Know in 2025
Explore new features, improved TypeScript, v-memo, and why Vue still leads in simplicity & performance.
Why Developers Still Love Vue.js
- Simplicity & Flexibility: Easy to learn, powerful in production.
- Reactivity System: Vue 3’s Composition API offers fine-grained reactivity.
- Small Bundle Size: Lightweight but full-featured.
- Ecosystem Tools: Vue Router, Pinia (state), Vite, and more.
What’s New in Vue 3.4+
1. Improved TypeScript Support
Vue 3.4 enhances TS integration. Better type inference in templates and IDE support.
<script setup lang="ts">
const user = defineProps<{ name: string }>()
</script>
2. Compiler Performance Boost
Faster SFC compilation using better AST optimization and a leaner runtime.
3. v-memo – Smarter Memoization
Prevent re-renders for expensive templates using v-memo.
<div v-memo="[user.id]">
{{ expensiveRender(user) }}
</div>
4. Teleport Enhancements
Less boilerplate and better performance when rendering portals conditionally with <Teleport>.
Vue CLI vs Vite in 2025
| Feature |
Vite |
Vue CLI |
| Speed |
Blazing fast |
Slower build |
| Config |
Simpler |
Webpack-based |
| Ecosystem |
Modern (ESM) |
Legacy |
How to Upgrade to Vue 3.4
For existing Vue 3 users:
npm install vue@latest
With Vite:
npm create vite@latest my-vue-app --template vue
npm install vue@3.4.x
Composition API vs Options API
Vue 3 supports both APIs. Use Composition API for reusability and TypeScript compatibility.
Options API
export default {
data() {
return { count: 0 };
}
}
Composition API
<script setup>
import { ref } from 'vue';
const count = ref(0);
</script>
Vue Ecosystem Highlights
- Pinia: Official state management, now stable.
- Vue Router v4: Supports lazy routing and Composition API.
- Vue Devtools: Better reactivity tracking and debugging.
Vue for Mobile & SSR
Use Nuxt 3 for server-side rendering, and explore Ionic Vue or Quasar for mobile-first development.
