Shopify regularly pushes updates to their APIs which often involve new fields being added as well.

Below is a list of new fields we've added to EZ Exporter when exporting order data.  Many of these fields can be used in the filters as well.

• current_subtotal_price: Current Subtotal Price (type: number). The current subtotal price of the order in the shop currency. The value of this field reflects order edits, returns, and refunds.
• current_total_discounts: Current Total Discounts (type: number). The current total discounts on the order in the shop currency. The value of this field reflects order edits, returns, and refunds.
• current_total_price: Current Total Price (type: number). The current total price of the order in the shop currency. The value of this field reflects order edits, returns, and refunds.
• current_total_tax: Current Total Tax (type: number). The current total taxes charged on the order in the shop currency. The value of this field reflects order edits, returns, or refunds.
• landing_site_ref: Landing Site Ref (type: text). The value of the `ref` parameter from the landing page URL.
• presentment_currency: Presentment Currency (type: text). The presentment currency that was used to display prices to the customer.
• estimated_taxes: Estimated Taxes (type: text). Whether taxes on the order are estimated. Many factors can change between the time a customer places an order and the time the order is shipped, which could affect the calculation of taxes. This property returns False when taxes on the order are finalized and aren't subject to any changes. Value is either True or False.

The first 4 fields that start with current_ are especially useful for merchants that often use Shopify's order edit feature.  When an order is edited and a line item is removed or quantity is decreased, the Shopify order CSV will still show the original total price.  These new current_ price fields will provide the current values after order edits and refunds.