WordPress Migration and Upgrade Review Skill

Overview

Systematic review for WordPress plugin and theme upgrade routines. Core principle: Upgrades should be repeatable, version-aware, incremental, and safe on real production data. Review covers schema changes, option migrations, version flags, activation upgrades, background backfills, idempotency, rollback risk, and backwards compatibility.

When to Use

Use when:

• Reviewing schema or option migrations
• Auditing dbDelta() usage
• Checking versioned upgrade routines
• Reviewing background backfills or one-time repair jobs
• Preparing a risky release for existing installs

Don't use for:

• Pure performance review without migration logic
• General plugin architecture review without upgrade context
• One-off content imports unrelated to product upgrades