Deprecation: #99908 - Site language "hreflang" setting¶
A language configuration defined for a site has had various settings, one of
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 necessary to set this property in the site configuration
anymore. The information is now automatically
derived from the
locale setting of the site configuration if not set
in the site configuration.
This also affects the TypoScript
siteLanguage:hrefLang, and the TypoScript condition
Using the TypoScript settings or the PHP method will trigger a PHP deprecation notice.
An administrator cannot select a value for the
hreflang setting anymore
via the TYPO3 backend. However, when saving a site configuration via the
TYPO3 backend it will still keep the
hreflang setting so no information is lost.
TYPO3 installations actively accessing this property via PHP or TypoScript.
No migration is needed as the explicit option is still evaluated. It is however
recommended to check if the setting is really necessary, and if the locale of
the site language in the
config.yaml matches the same value - even in a
different format (
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