Deprecation: #99908 - Site Language "hreflang" setting¶
A language configuration defined for a site has had various settings, one of
them being "hreflang". The setting is used to generate hreflang meta tags to
link to alternative language versions of a translated page, and to add the
"lang" attribute to the
<html> tag of a frontend page in HTML format.
Since TYPO3 v12 it is not needed to set this property in the site configuration anymore, and is removed from the Backend UI. The information is now automatically derived from the Locale setting of the Site Configuration.
As a result, the amount of options in the User Interface for integrators is reduced.
The PHP method
SiteLanguage->getHrefLang() serves no purpose
anymore and is deprecated.
This also affects the TypoScript "getData" property
siteLanguage:hrefLang, and the TypoScript condition
Using the TypoScript settings or the PHP method will trigger a PHP deprecation notice.
An Administrator can not select a value for the "hreflang" setting anymore via the TYPO3 Backend. However, when saving a site configuration via the TYPO3 Backend will still keep the "hreflang" setting so no information is lost.
TYPO3 installation actively accessing this property via PHP or TypoScript.
No migration is needed as the explicit option is still evaluated. It is however
recommended to evaluate if the setting is really needed, and if the locale of
the site language in the
config.yaml matches the same value - even in a
different format (locale: "de_AT.UTF-8", hreflang: "de-AT") - the setting
hreflang can be removed.
Any calls to
SiteLanguage->getHrefLang() can be replaced by
As for TypoScript, it is recommended to use