# Upgrade guide for Gantt v5.3.0

## Localization update

`LocaleManager.registerLocale` has been deprecated.
[LocaleHelper.publishLocale](#Core/localization/LocaleHelper#function-publishLocale-static) should be used instead.

**Old code:**

```javascript
LocaleManager.registerLocale('Es', {
    desc : 'Spanish', locale : {
        localeName : 'Es',
        localeDesc : 'Spanish',
        locale     : {
            /* localization */
        }
    }
});
```

**New code:**

```javascript
LocaleHelper.publishLocale({
    localeName : 'Es',
    localeDesc : 'Spanish',
    localeCode : 'es',
    /* localization */
});
```

`LocaleManager.extendLocale` has been deprecated.
[LocaleManager.applyLocale](#Core/localization/LocaleManager#function-applyLocale) should be used instead.

**Old code:**

```javascript
LocaleManager.extendLocale('Es', {
    desc : 'Spanish', locale : {
        locale : {
            /* localization */
        }
    }
});
```

**New code:**

```javascript
LocaleManager.applyLocale({
    localeName : 'Es',
    localeDesc : 'Spanish',
    localeCode : 'es',
    /* localization */
});
```

Check our [localization guide](#Gantt/guides/customization/localization.md#locales) for the details.


<p class="last-modified">Last modified on 2023-10-26 8:19:02</p>