Woocommerce Buy One Get One Free 5.1.3

* Added: New type of rule "Buy 2 (or more) products and get the cheapest one for free."
* Added: New settings option for display the [wc_choose_your_gift] shortcode after the cart.
* Added: [wc_choose_your_gift] shortcode supports the "AJAX add to cart buttons".
* Added: Minimum spend - The minimum subtotal needed to use the rule.
* Added: Improvements on the compatibility with Product Bundles to allow users to choose which items the rule applies to.
* Added: Compatible with WooCommerce 4.7+.
* Tweak: Improve the compatibility with themes that use AJAX to add the product to the cart on the "single product page."
* Fixed: Minor bugs.

* Added: Compatible with WooCommerce 4.5+.
* Fixed: Typo on the deal mode select box.
* Fixed: Do not allow free items if the cart subtotal with discounts is zero.

* Fixed: Polylang compatibility - Free item is removed on the checkout page