public static function in_plugin_update_message( $plugin_data, $r ) {
		$current_version = $plugin_data['Version'];
		$new_version = $plugin_data['new_version'];
		$upgrade_magnitude = self::get_upgrade_magnitude($current_version, $new_version);
		if ( $upgrade_magnitude == 'milestone' ) {
			$message = self::update_message_milestone();
			echo '<br />'.sprintf($message);
			return;
		} elseif ( $upgrade_magnitude == 'major' ) {
			//major version
			$message = self::update_message_major();
			echo '<br />'.sprintf($message);
			return;
		}
		$message = self::update_message_minor();
		echo '<br />'.($message);
		return;

	}