Countries on Stores achieved general availability status

After collecting feedback during the beta phase, we have moved countries on Stores out of beta. The status of the following features has been changed to general availability:

• Adding a country to a Store.
• Removing a country from a Store.
• Setting the countries on a Store.
• The StoreCountriesChanged Message.

Visit the API reference to learn more about how countries on Stores can enable filtering prices in Product Projections and Cart, Order, and Shopping List Line Items.