* Full details: Version 1.6.9 Released - WooCommerce Zapier
* New: Billing State Name field for orders and customers.
* New: Shipping State Name field for orders and customers.
* Change: Minimum required version is now WooCommerce 2.6.0 (tested up to WooCommerce 3.1.0).
* Remove support for WooCommerce 2.4 and 2.5.
* Full details: Version 1.6.8 Released - WooCommerce Zapier
* Fix: Orders/Subscriptions: ensure order line item meta data is sent correctly when using WooCommerce 3.0+.
* Fix: Orders: correctly send product category/tag information for variable products.
* Full details: Version 1.6.7 Released - WooCommerce Zapier
* Fix: Avoid "Undefined index: variation_id" error when using WooCommerce 2.6.x or earlier.
* Change: System status information now displays in WooCommerce 3.0.1 or newer, or 2.6.x or older. It won't display in WooCommerce 3.0.0.
* Change: Minimum required version is WooCommerce 2.4.9.
