Vue: Migrating to vue3?

Question

I have a current project in Vue 2. I saw Vue 3 was released in September ( https://news.vuejs.org/ ) and I'm wondering if there's a guide on how to upgrade. If there's no migration tool, is there a guide to manually upgrade and what steps to take?

Answer 1

In addition to the official guide @wittgenstein mentioned I found Evan You's talk at VueConf helpful. Also, reading through the Vue RFCs will help you understand the thinking behind many of the changes, which makes everything much clearer.

Answer 2

According to Evan You's talk at VueConf Amsterdam (september 2020):

• a migration build from V2 to V3 should be available for Q4 2020
• a "2.7 minor release backporting 3.x features and opting-in 3.x compatible behaviours and deprecation warnings", to smoothen the migration to Vue 3, is planned by 2021

Also, please note that even if Vue 3 is stable, it is not yet the case for the whole environment (for example, Vuex 4 and Vue-next-router are currently in RC), and some sub-projects may not be completely compatible with Vue 3 yet. A 'common switch' (Vue 3 and sub-projects) is also planned by 2021.

So, if your project is a large app, it is recommanded to wait for early 2021 to start the migration.