Vue 2 to Vue 3: A migration story

Bruno Silva
5 min readMar 28, 2023

Vue 3 was released in September 2020 and it brings a lot of new features, optimizations, and improvements over Vue 2. If you’re considering migrating your project from Vue 2 to Vue 3, there are several things you should know before you begin.

In this article, we’ll cover the major changes between Vue 2 and Vue 3, the benefits of upgrading, and the steps to migrate your existing project to Vue 3.

Benefits of Upgrading to Vue 3

Before diving into the migration process, let’s take a look at the benefits of upgrading to Vue 3.

  1. Performance improvements

Vue 3 includes several performance optimizations, such as a new rendering algorithm, improved tree shaking, and better support for static tree hoisting. This can lead to faster rendering and smaller bundle sizes.

2. Composition API

The Composition API is a new way of organizing component logic that makes it easier to reuse code across components. It allows for better code organization, improved type checking, and better separation of concerns.

3. Better TypeScript Support

Vue 3 has improved TypeScript support, with better type inference and support for TypeScript’s optional chaining and null coalescing operators.

--

--

Bruno Silva
Bruno Silva

Written by Bruno Silva

Product Engineer @ Herbert Smith Freehills

No responses yet