Vue 3 Migration Build: Incremental Upgrades

Vue 3’s migration build lets you upgrade incrementally. Run Vue 2 code with Vue 3 runtime.

Install Migration Build

npm install vue@3 @vue/compat

Config

// vue.config.js
module.exports = {
  chainWebpack: config => {
    config.resolve.alias.set('vue', '@vue/compat')
  }
}

Process

1. Install compat build
2. Fix deprecation warnings
3. Convert filters to methods
4. Switch to Vue 3 proper