wp-includes/functions.php:8010Gets last changed date for the specified cache group.
$groupstringstringfunction wp_cache_get_last_changed( $group ) { $last_changed = wp_cache_get( 'last_changed', $group ); if ( $last_changed ) { return $last_changed; } return wp_cache_set_last_changed( $group );}Introduced in 4.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.