Frontend Upgrade Operations

The two front-end upgrades a Craft CMS (or any Twig/PHP) agency keeps meeting: an asset pipeline still on Laravel Mix or raw Webpack, and widgets still on Vue 2. Both are frozen - Mix's last release was 6.0.49 in June 2022 and Laravel calls it "a legacy package that is no longer actively maintained"; Vue 2 reached end of life on 31 December 2023. This skill is the playbook for moving a server-rendered site to Vite 8 + craft-vite and Vue 3, or for deciding that a widget should not be Vue at all.

Version facts verified as of 2026-10-05 against npm, Packagist, vite.dev, v3-migration.vuejs.org and nystudio107.com/docs/vite. Each reference cites its sources.

Start here: what does this repo need?