# Database columns

> Source: https://docs.strapi.io/cms/migration/v4-to-v5/breaking-changes/database-columns

In Strapi 5, all content types automatically include `document_id`, `published_at`, and `locale` database columns for document management, publication, and internationalization.

In Strapi 5, Content types always have document, publication and internationalization columns created in database.

This page is part of the [breaking changes database](/cms/migration/v4-to-v5/breaking-changes) and provides information about the breaking change and additional instructions to migrate from Strapi v4 to Strapi 5.

- Is this breaking change affecting plugins? Yes
- Is this breaking change automatically handled by a codemod? No

## Breaking change description

**In Strapi 5**

* All the Content Types have a new `document_id` column.
* The `published_at` column is now always added.
* The `locale` column is now always added.

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