wp-includes/general-template.php:1515Displays title tag with content.
function _wp_render_title_tag() { if ( ! current_theme_supports( 'title-tag' ) ) { return; } echo '<title>' . wp_get_document_title() . '</title>' . "\n";}Introduced in 4.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/general-template.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.