Hello,

Could someone please provide a guide on how to safely upgrade our codebase to the newer version?
Our application is currently built on Laravel 9, v8.2.0 using Theme Demo16, and we would like to upgrade to v8.3.1.

We’d like to understand:

• What breaking changes to expect during this upgrade
• What adjustments will be required in our existing Demo16 code
• Best practices to ensure a smooth transition

I came across a related ticket that outlines some of the changes:
Upgrade from 8.1.9 to 8.3.1 – Keenthemes

Key notes from that thread:

1. 
   Menu Changes
   
   • config/menu.php has been removed.
   • Menus are now defined in Blade templates:
     resources/views/layout/partials/sidebar-layout/sidebar/_menu.blade.php
     
   • The structure now uses Laravel’s route-based approach:
     
     • Direct Blade rendering
     • Route-based active states (request()->routeIs())
     • Icon helpers (getIcon())
     
     
     
     
   • Configuration handled via:
     
     • app/Core/Bootstrap/BootstrapDefault.php
     • app/Core/Theme.php
     
     
     
     
   
   
   
   


2. 
   Build/JavaScript Conflicts
   
   • Conflicts can occur from duplicate script includes.
   • Ensure webpack.mix.js isn’t including both compiled and source files.
   
   
   
   
   Recommended steps:
   
   
   copy

   npm cache clean --force
   
   rm -rf node_modules package-lock.json
   
   rm -rf public/assets/*
   
   npm install
   
   npm run dev

   
   
   
   • Verify only one validation library is active.
   • Ensure files aren’t being loaded from both public/assets/ and source.
   
   
   
   

Any official documentation, migration notes, or upgrade best practices specifically for Laravel 9, Demo16 would be greatly appreciated.

Thank you!