Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。
$since_timestamp;
}
/**
* Force update the change timestamp (useful for manual cache clearing).
*/
public static function force_update(): void {
self::_update_change_timestamp();
}
/**
* Check if the Divi core builder version has changed and update timestamp if it has.
*
* This method runs on the 'init' hook to detect version changes from:
* - Version rollback feature
* - Manual updates/FTP uploads
* - Switching between different Divi builds
* - Child theme switches affecting parent Divi version
*/
public static function check_version_change(): void {
// Use transient to avoid checking on every request.
$transient_key = 'divi_version_check_done';
if ( get_transient( $transient_key ) ) {
return;
}
// Get current Divi core builder version.
$current_version = defined( 'ET_CORE_VERSION' ) ? ET_CORE_VERSION : '';
// Get stored version.
$stored_version = get_option( self::VERSION_OPTION_KEY, '' );
// If this is the first time or version has changed.
if ( '' === $stored_version ) {
// Initialize with current version.
update_option( self::VERSION_OPTION_KEY, $current_version, false );
} elseif ( $stored_version !== $current_version ) {