* Tweak - Improved product catalogs table in the System Status Report.

* Tweak - Include the last modified date in the catalog XML file.

* Fix - Fixed duplicated error notice on the settings page when the selected Facebook page doesn't have an Instagram account connected to it.

* Tweak - Unregister scheduled actions on plugin deactivation.

* Tweak - Unregister custom post types on plugin deactivation.

* Tweak - Tested compatibility with WC 6.3.

Feature - Include the stock quantity in the product catalogs.

* Tweak - Refresh the XML file when the catalog settings change.

* Tweak - Tested compatibility with WC 6.2.

* Dev - Don't trigger the action hook `wc_instagram_product_catalog_updated` when a catalog file status changes.

* Dev - Store the status of a catalog file as a transient instead of catalog metadata.

* Feature - Generate files for the product catalogs.

* Tweak - Process the products of a catalog in batches.

* Tweak - Reduced the load time of the product catalog feeds.

* Tweak - Improved performance when exporting a product catalog to an XML or CSV file.

* Tweak - Redirect to the settings page after creating a product catalog.

* Tweak - Product catalogs are no longer sortable in the settings table.

* Tweak - Delete a product catalog on the settings page without the need to save the settings.

* Tweak - Replaced deprecated jQuery functions.

* Tweak - Clear cache after removing the plugin data on uninstalling.

* Tweak - Updated documentation links.

* Tweak - Tested compatibility with WC 6.1.

* Tweak - Tested compatibility with WP 5.9.

* Dev - Allow querying products from a catalog.

* Dev - Store the product catalogs in the WP Posts table as a Custom Post Type.

* Dev - Use a WC background process to handle the plugin updates.

* Dev - Use a trait instead of a class for implementing the Singleton pattern.

* Dev - Dropped deprecated plugin code up to version 3.6.

* Dev - Dropped classes `WP_Async_Request` and `WP_Background_Process` from core.

* Dev - Updated the minimum requirements to WC 3.5, WP 4.7, and PHP 5.4.

Tweak - Tested compatibility with WC 6.0.

* Feature - Include additional information such as color, size, gender, etc. in the product catalogs.

* Tweak - Tested compatibility with WC 5.9.

* Dev - Deprecated filter hook `woocommerce_instagram_google_product_categories` in favor of `wc_instagram_google_product_categories`.

* Dev - Updated Instagram Graph API version to v12.0.

* Tweak - Tested compatibility with WC 5.8.

* Tweak - Added plugin info to the WooCommerce System Status Report.

* Tweak - Tested compatibility with WC 5.7.

* Tweak - Use the product name instead of the title in the content displayed on the product page.

* Tweak - Tested compatibility up to WC 5.5.

* Tweak - Tested compatibility up to WP 5.8.

* Dev - Updated template `single-product/instagram.php`.