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language-codes-are-now-normalized.rst

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.. post:: October 24, 2023
   :tags: docs, languages, translations
   :category: Changelog
   :author: Santos
   :location: CUE

Language codes are now normalized

The following language codes are now normalized to be lowercase and use a dash as a separator instead of an underscore:

  • nb_NO is now nb-no
  • pt_BR is now pt-br
  • es_MX is now es-mx
  • uk_UA is now uk-ua
  • zh_CN is now zh-cn
  • zh_TW is now zh-tw

This change affects the following areas:

API:
  • When creating or updating projects, you must now use the new normalized language codes.
  • The API responses will include the new normalized language codes.
Docs and download URLs:

Previous URLs from projects using the old language codes will redirect to the new normalized language codes. For example:

  • https://docs.readthedocs/pt_BR/latest/ will redirect to https://docs.readthedocs/pt-br/latest/.
  • https://docs.readthedocs/_/downloads/pt_BR/latest/pdf/ will redirect to https://docs.readthedocs/_/downloads/pt-br/latest/pdf/.
Redirects:
If you had redirects using the old language codes in the From URL field, they were automatically updated to use the new normalized language codes.

This change was implemented to ensure more readable and clean URLs.