Mastering SaaS Migration: Laravel & Vue Version Upgrades GuideMastering SaaS Migration: Laravel & Vue Version Upgrades Guide
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composer require laravel/framework:^12.0 --dry-run returned 23 package conflicts before we'd changed a single line of code.
That was day one of migrating a live SaaS across Laravel 8 → 12 + Vue 2 → 3. 1,600 PHP files. 590 Vue components. Real paying users the whole time.
Wrote the full breakdown — the three things that could have destroyed us, how we used Claude Code, and where it fell short.

medium.com

How Our Team Migrated 1,600 PHP Files and 590 Vue Components Across 4 Major Versions — With Claude…

A Laravel 8 → 12 + Vue 2 → 3 war story from a developer who led the backend migration

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