Platform Migration

Migrate WordPress 5 to WordPress 6 Automatically

Upload your project and get production-ready migrated code in minutes.

Start Migration

What changes between WordPress 5 and WordPress 6?

  • Full Site Editing (FSE) support: block themes with theme.json configuration
  • Global Styles API with theme.json v2 for design tokens, typography, and color palettes
  • Block editor enhancements: new blocks, block patterns, and template editing capabilities
  • PHP 8.0+ compatibility changes: named arguments, union types, nullsafe operator support
  • Deprecated jQuery dependency reduction; vanilla JS alternatives for admin scripts
  • WebP image format support by default for media uploads
  • Performance improvements: lazy loading, script loading strategies, block rendering optimizations
  • Several deprecated hooks and filters removed; replacement hooks required

How Nivo migrates WordPress 5 to WordPress 6

01

Connect your project

Paste a GitHub URL or upload a ZIP file of your WordPress 5 project.

02

Nivo detects your WordPress 5 project

The engine scans your codebase to identify WordPress 5 patterns, APIs, and configuration that need updating.

03

AI applies all WordPress 6 migration transforms

Hybrid AST + AI engine applies deterministic transforms for configuration and dependencies, and AI-powered transforms for complex code changes. Every change gets a confidence score.

04

Download migrated codebase + review report

Get a ZIP with your fully migrated code, a complete migration report, and a checklist of items flagged for manual review.

Frequently Asked Questions

What are the biggest changes in WordPress 6?

Full Site Editing is the headline feature, allowing block-based control over headers, footers, and templates. The theme.json v2 spec centralizes design tokens. Several deprecated hooks from WordPress 4.x and 5.x are also removed.

Is it safe to upgrade WordPress 5 to 6 on a live site?

Yes. Nivo scans your theme, plugins, and custom code for deprecated hooks, removed functions, and PHP compatibility issues. It generates a report of changes needed before you upgrade.

How long does the migration take?

Most sites complete in 10 to 15 minutes. The time depends on how many custom hooks, deprecated functions, and theme template files need updating. Plugin compatibility checks run in parallel.

Will my existing theme still work?

Classic themes continue to work in WordPress 6. However, to use Full Site Editing features, you need a block theme. Nivo can convert classic themes to block themes or flag areas where manual conversion is needed.

Do I need PHP 8 for WordPress 6?

WordPress 6 supports PHP 7.4+ but recommends PHP 8.0+. Nivo scans your code for PHP 8 compatibility issues like named argument conflicts and type declaration changes.

Start your WordPress 5 to WordPress 6 migration

Start Migration

Free tier available — no credit card required

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