# Guides and Surveys updateLanguage SDK method

Guides and Surveys can be localized by setting the language during initialization. With this addition, you can now update the language mid-session.

Source: https://amplitude.com/en-us/releases/guides-and-surveys-update-language

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Guides and SurveysMay 21, 2025

[\[All updates\]](/releases)

### Guides and Surveys updateLanguage SDK method

Thomas Kainrad

**Description:** Guides and Surveys can be localized by setting the language during initialization. With this addition, you can now update the language mid-session.

**Why:** Customers should still try to set the language during initialization. Otherwise, we might show a guide in the wrong language before the correct language has been set via `updateLanguage`. However, there are valid use cases for updating the language mid-session. For example, using the default language for unauthenticated users, but once they log in, switching to the user’s configured language.

**Available in EUDC:** Yes

**When:** Available for everyone using localization (Growth and Enterprise customers).

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