Reading vuejs/core-vapor

Introduction

Thank you for picking up this book!
This book is a guide to understanding the implementation of Vapor Mode, the next-generation implementation of Vue.js.
While it's aimed at more advanced readers, I hope you find something helpful, even if only in parts!

Purpose of This Book

• To gain a deep understanding of Vapor Mode, the next-generation implementation of Vue.js
• To deepen your knowledge of what Vapor Mode is
• To understand how it's implemented by reading through the source code

What This Book Is Not About

• Learning how to use Vue.js
• Comparing and evaluating it against other frameworks

Intended Audience

• Those interested in contributing to vuejs/core
• Those who want to deepen their understanding of Vue.js

About the Author

ubugeeei

Member of Vue.js and Vue.js Japan User Group.
King of chibivue.land.
Chief Engineer of @mates-system.

Involved in the development of Vapor Mode from its inception (November 2023).
Became an external collaborator for vuejs/core-vapor in December 2023.
In April 2024, joined the Vue.js organization and became a member of the Vapor Team.
In July 2025, Vapor Mode was merged into vuejs/core.

https://wtrclred.io/

Note

Caution

About the Implementation Repository of Vue Vapor

Vue Vapor was initially developed in a repository called vuejs/core-vapor at launch. This book is written based on vuejs/core-vapor. Please make appropriate substitutions when reading.

1. In October 2024, vuejs/core-vapor was renamed to vuejs/vue-vapor.
   Repository: https://github.com/vuejs/vue-vapor
2. In July 2025, the implementation of vuejs/vue-vapor was merged into the minor branch of vuejs/core, and vuejs/vue-vapor was archived.

Sponsors

If you'd like to support my work, I would greatly appreciate it!

https://github.com/sponsors/ubugeeei