PHP Parse error after upgrading to 2.3

Hi,

I got the same error too. Syntax error, but I
do not know how to fix it.

This is line 423:
$email_actions = array_merge($email_actions,array_map(function($val) {return $val.'_notification';},$email_actions));

Preceding lines, 397 to 422 … just in case one needs the previous codes to check line 423:

function email_footer() {
        global $sitepress;

        $sitepress->switch_lang();
    }

	function translate_email_notifications() {
		$email_actions = array( //the first ones worked for WC 1.6
			'woocommerce_order_status_pending_to_processing',
			'woocommerce_order_status_pending_to_completed',
			'woocommerce_order_status_pending_to_on-hold',
			'woocommerce_order_status_failed_to_processing',
			'woocommerce_order_status_failed_to_completed',
			'woocommerce_order_status_pending_to_processing',
			'woocommerce_order_status_pending_to_on-hold',
			'woocommerce_order_status_completed',
			//next are new, at least since WC 2.04; they also began to add the postfix '_notification'
			//not clear they are consistent accross versions between 2.0 and 2.0.8, so adding them without postfix as well
			'woocommerce_new_customer_note',
			'woocommerce_reset_password',
			/* the following are not added because messages to admins should not switch language; left here for reference of other _notification actions
			'woocommerce_low_stock',
			'woocommerce_no_stock',
			'woocommerce_product_on_backorder'*/
		);
		//added for WC 2.0.x

Dear users,

We accidentally introduced a closure, which doesnt work until PHP 5.3. You must be using PHP 5.2. This is fixed already in our development version:

https://downloads.www.ads-software.com/plugin/woocommerce-multilingual.zip

Thank you for your reply. I upgraded to PHP5.3. All is ok now.

Thanks again.

Is the development version safe to install on my site?

The only change made since 2.3 is this one. Its safe.