Better support of variable products and quality improvements. See below. And you can always see full change log of Bulk Discounts for WooCommerce for WordPress.
- Changing text 'Already done' to 'Dismiss' in review notification.
- Direct link to download full version in upgrade message.
- On all notifications that requires confirming the close 'X' button was removed.
- Plugin's custom directory name support.
- Settings restoring confirmation.
- Showing discount in prices' range of variable products.
- Ajax requests could be blocked by another plugins.
- Can't update plugin from file if its directory is renamed.
- Decrypting is not working after changing salts.
- If discount is less than 2 a sale flash is not shown in variable products.
- If minimum quantity is set 0 then after reloading it becomes 2.
- Inline script appears as text while using with Elementor.
- Plugin's scripts and styles are loaded incorrectly if WP plugins directory is not under WP root directory.
- Sometimes Ext, Full versions are updated to Base version.
- Sometimes error appears about call to undefined function 'get_plugins'.
- Sometimes infinite loop in '_flt_woocommerce_product_get_price' filter.
More information can be discovered in the original post about New version 2.4 released - Bulk Discounts for WooCommerce for WordPress and on the main site.