History & Evolution of Vue.js
Trace Vue from its 2014 origins through Vue 2 and into Vue 3, the modern Composition-API-first version this course teaches.
Origins
Vue.js was created by Evan You and first released in February 2014. He had worked extensively with AngularJS at Google and wanted to extract the parts he found most useful — data binding and a reactive template system — into something lighter and more flexible.
The Vue 2 Era (2016–2020)
Vue 2, released in 2016, is what took Vue mainstream. It introduced the Options API — organizing a component's logic into data, methods, computed, and lifecycle option blocks — which powered most production Vue applications for several years and is still found in many existing codebases today.
The Options API still works in Vue 3 and is fully supported — it isn't deprecated. This course focuses on the Composition API because it's the modern default, but recognizing Options API syntax (data(), methods: {}) is useful for reading existing projects.
The Shift to Vue 3
Vue 3, released in September 2020, was a ground-up rewrite. It introduced the Composition API as a more flexible way to organize component logic, a faster reactivity system built on JavaScript Proxies, better TypeScript support, and new built-in features like Teleport and Fragments.
What Vue 3 introduced:
- The Composition API and the setup() function.
- <script setup> — a more concise syntax for the Composition API.
- A Proxy-based reactivity system (faster, more comprehensive than Vue 2's).
- Native TypeScript support written directly into Vue's source.
- Teleport, Fragments (multiple root nodes), and Suspense.
Timeline
| Year | Milestone |
|---|---|
| 2014 | Vue.js 1.0 released. |
| 2016 | Vue 2 released — the Options API and virtual DOM become mainstream. |
| 2020 | Vue 3 released — Composition API, Proxy-based reactivity, TypeScript support. |
| 2021 | Vue 3 becomes the default version for new projects. |
| 2022 | <script setup> stabilizes as the recommended way to write components. |
| 2023–2025 | Continued performance work and growth of the Vue/Nuxt ecosystem. |
FAQs
Not to start — learn the Composition API first, since it's the modern default this course teaches. You'll pick up Options API syntax quickly later if you need to read an older codebase.
Vue 2 reached end-of-life for official support in December 2023 — all new projects should use Vue 3.
Summary
Vue grew from a lightweight alternative to Angular into a mature framework with two APIs for writing components — this course teaches the modern Composition API throughout. Next, you'll look at why Vue is worth learning today.