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wp-block-development

separate

Use when developing WordPress (Gutenberg) blocks: block.json metadata, register_block_type(_from_metadata), attributes/serialization, supports, dynamic rendering (render.php/render_callback), deprecations/migrations, viewScript vs viewScriptModule, and @wordpress/scripts/@wordpress/create-block build and test workflows.

When to use

• creating a new block, or updating an existing one
• changing `block.json` (scripts/styles/supports/attributes/render/viewScriptModule)
• fixing “block invalid / not saving / attributes not persisting”
• adding dynamic rendering (`render.php` / `render_callback`)
• block deprecations and migrations (`deprecated` versions)
• build tooling for blocks (`@wordpress/scripts`, `@wordpress/create-block`, `wp-env`)

Skill page

Source