locale=all can not be used to get all entries in all locales
In Strapi 5, it's no longer possible to get all localized versions of a content type with the locale=all parameter.
This page is part of the breaking changes database and provides information about the breaking change and additional instructions to migrate from Strapi v4 to Strapi 5.
Breaking change description
In Strapi v4
Users could get all of the locales of a single type by passing the locale=all parameter to Content API calls. This is not possible on collection types.
In Strapi 5
Getting documents (collection types or single types) in all locales at the same time is not possible anymore. A specific locale value must be passed.
Migration
This section regroups useful notes and procedures about the introduced breaking change.
Notes
Additional information on what is possible to do with locale in Strapi 5 is available in the REST API, GraphQL API, and Document Service API reference documentations.
Manual procedure
Users having custom code sending queries with the locale=all parameter should manually update their code to list all available locales then request data for each of these locales one by one.