The most important change introduced by WooCommerce 2.2 is the deprecation of the built-in Mijireh gateway. The gateway is now a separate plugin, available free of charge from WordPress.org, and it’s now required by the Mijireh Multi-Currency Gateway when it’s installed on WooCommerce 2.2.
The Mijireh Multi-Currency Gateway maintains full backward compatibility with WooCommerce 2.0 and 2.1. You can get it today and upgrade to WooCommerce 2.2 when you will be ready.
How do I get the latest version?
Simply go to the product page, where you can download it, completely free for a limited period.