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Migrating from 8.x to 9.x

Breaking changes

  • Support for the VueLexer has been dropped as it creates compatibility problems when trying to parse Vue3 code bases. You must remove any references to VueLexer in your configuration files. For Vue3, you can simply use JavascriptLexer instead.
  • Support for Node 16 is dropped. Node 18, 20 and 22 are supported.

Migrating from 7.x to 8.x

Breaking changes

  • Support for Node 14 is dropped. Node 16, 18 and 20 are supported.

Migrating from 6.x to 7.x

Breaking changes

  • The API to manage what default value is being used was getting too complicated. This version simplifies the API by deprecating the skipDefaultValues and useKeysAsDefaultValues options and adding a value argument when the defaultValue option is used as a function. Here are couple example of how it can be used:

To replace skipDefaultValue, make the following change:

// 5.x.x
{
  skipDefaultValues: true
}

// 6.x.x
{
  defaultValue: function (locale, namespace, key, value) {
    return '';
  }
}

To replace useKeysAsDefaultValues, make the following change:

// 5.x.x
{
  useKeysAsDefaultValues: true
}

// 6.x.x
{
  defaultValue: function (locale, namespace, key, value) {
    return key;
  }
}

And now you have complete control over the logic:

// 6.x.x
{
  defaultValue: function (locale, namespace, key, value) {
    if (locale === 'fr') {
      return '';
    }
    return value || key;
  }
}

Migrating from 5.x to 6.x

Breaking changes

  • We dropped support for node versions that are not LTS. Only even numbered versions will be supported going forward. Support is for Node 14+
  • This project is now a pure ESM project. You can read about it here to help you transition your project.

Migrating from 4.x to 5.x

Breaking change

Migrating from 2.x to 3.x

Breaking change

Migrating from 1.x to 2.x

Breaking change

  • Drop support for Node 6 and 8 (EOL)

Migrating from 0.x to 1.x

Breaking changes

  • Jade is not being tested anymore. If this is something you need, please make a PR with a Lexer for it
  • regex option was deprecated. If you need to support a custom file format, please make a PR with a Lexer for it
  • ignoreVariables was deprecated. Keys that are not string litterals now emit a warning
  • writeOld was renamed createOldLibraries. It defaults to true.
  • namespace was renamed defaultNamespace. It defaults to translation.
  • prefix was deprecated. Use output
  • suffix was deprecated. Use output
  • filename was deprecated. Use output
  • extension was deprecated. Use output
  • catalogs are no longer sorted by default. Set sort to true to enable this.

Improvements

  • defaultValue: replace empty keys with the given value
  • output support for $NAMESPACE and $LOCALE variables
  • indentation let you control the indentation of the catalogs
  • lineEnding let you control the line ending of the catalogs
  • sort let you enable sorting.

Lexers

Instead of writing a single regex to match all use cases or to run many regexes on all files, the new version introduce the concept of "Lexer". Each file format has its own Lexer. It adds some code but reduces complexity a lot and improves maintainability.

CLI

  • i18next input:output syntax was deprecated. Use the --output option
  • recursive was deprecated. You can now pass a glob
  • directoryFilter was deprecated. You can now pass a glob
  • fileFilter was deprecated. You can now pass a glob

0.x

i18next src --recursive --fileFilter '*.hbs,*.js' --directoryFilter '!.git'

1.x

i18next 'src/**/*.{js,hbs}' '!.git'