Stability has been improved. See below. And you can always see full change log of Bulk Discounts for WooCommerce for WordPress.
- Checkboxes inner select links are now in Combo style.
- Download Preview and Full bundles by current version.
- "Key" link after "Order" button is invalid.
- In rare cases admin UI is blocked.
- In the admin panel, the warning 'Undefined index' is shown, if DEBUG mode is enabled.
- Inline comboboxes too short in WP 5.3 or higher.
- PHP 5.4 'empty' operator compatibility.
- Settings are erased when editing not from product's editor.
- Settings layout is too wide on some themes.
- Unable to upgrade Extended and Premium version.