skills.rest
muskie9
muskie9COMMUNITY
Explore all skills by this author →
WebsiteGitHub

silverstripe-3-to-4-upgrade

Migrate Silverstripe 3 projects to Silverstripe 4 with package and namespace updates.

Updated Jun 18, 2026
Search Tags:#template#database#migration#developer#Silverstripe
One-click install
npx skills add https://github.com/muskie9/agents --skill silverstripe-3-to-4-upgrade
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: silverstripe-3-to-4-upgrade
Source: https://github.com/muskie9/agents/tree/main/skills/silverstripe-3-to-4-upgrade
Command: npx skills add https://github.com/muskie9/agents --skill silverstripe-3-to-4-upgrade

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires silverstripe/recipe-version-upgrade, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides a comprehensive upgrade path for legacy Silverstripe 3 projects to Silverstripe 4, ensuring seamless migration with parity, not redesign.

Core Features & Use Cases

  • Assessment: Identifies package differences, prepares for migration, and sets up a legacy instance.
  • Directory Structure: Renames mysite to app, introduces a public directory for assets and configuration.
  • Dependencies: Updates composer.json for compatibility with Silverstripe 4 and modern PHP requirements.
  • Namespacing: Implements PSR-4 autoloading and maps database class names to their new locations.
  • Database Schema: Resolves preflight issues like FULLTEXT indexes and table collisions.
  • Data Migration: Handles file migration, namespace migration, and custom SQL tasks.
  • Templates: Updates templates for Silverstripe 4 compatibility.
  • Build & Verify: Ensures the build process works correctly and performs frontend and admin QA.
  • Code Quality & CI: Enforces code quality with tools like PHPCS, PHPStan, and PHPUnit.

Quick Start

Run the silverstripe-3-to-4-upgrade skill to begin the upgrade process.

Frequently Asked Questions about silverstripe-3-to-4-upgrade

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I upgrade a legacy Silverstripe 3 project to Silverstripe 4?▼

Upgrading a legacy Silverstripe 3 project to Silverstripe 4 involves migrating package updates, namespaces, database schemas, and templates. This Skill automates the process to ensure migration parity rather than a full redesign.

What directory structure changes are required for Silverstripe 4 migration?▼

Silverstripe 4 migration requires renaming the `mysite` directory to `app` and introducing a new `public` directory for assets and configuration to align with modern framework standards.

How does the Silverstripe 4 upgrade handle database schema and namespacing?▼

The Silverstripe 4 upgrade resolves preflight database issues like FULLTEXT indexes and table collisions. It implements PSR-4 autoloading and maps legacy database class names to their new namespaced locations.

Do I need a working Silverstripe 3 instance to start the migration?▼

Yes, you need a working Silverstripe 3 instance and a development environment configured for Silverstripe 4. The migration process begins by assessing package differences and preparing a legacy instance.

What code quality tools are enforced after completing the Silverstripe migration?▼

After completing the Silverstripe migration, code quality is enforced using tools like PHPCS, PHPStan, and PHPUnit to ensure the upgraded project meets modern development standards.

Can I update templates and composer dependencies for Silverstripe 4 compatibility?▼

Yes, the upgrade process updates `composer.json` for compatibility with Silverstripe 4 and modern PHP requirements, while simultaneously adjusting existing templates to ensure full Silverstripe 4 compatibility.

Related Skills

Explore More Software Engineering Skills→
jsirishjsirish
1

silverstripe-3-to-4-upgrade

Migrate Silverstripe 3 websites to Silverstripe 4 with automated data migration and template updates.

Community
Advanced
SilverAssistSilverAssist
1

quality-checks

Run PHPCS, PHPStan, and PHPUnit checks for PHP code quality.

Official
Advanced
jsirishjsirish
1

silverstripe-version-upgrade

Automates Silverstripe CMS major version upgrades from assessment to deployment.

Community
Advanced
dmarinsdmarins

deprecation-and-migration

Generate migration plans for legacy APIs with database schema evolution strategies.

Community
Advanced