* Add – Support for High-performance Order Storage (“HPOS”) (formerly known as Custom Order Tables, “COT”).
* Tweak – Set minimum required version of PHP to 7.0.
* Tweak – Bump minimum required version of WordPress from 3.9.0 to 5.6.
* Tweak – Bump minimum required version of Woocommerce from 2.6 to 6.0.
* Tweak – WC tested up to 7.0.
* Add – Declare support for High-performance Order Systems (“HPOS”).
* Update – Bump our Node support to v16.
* Update – Bump our NPM support to v8.

* Fix – Update schema callback to match what is returned by data callback in Blocks integration class.
* Tweak – WC 7.2 compatibility.

* Misc – Require PHP 7.4 and WordPress 5.6

* Fix – Improve compatibility with WP filters

* Tweak: Delete API Key activations when WooCommerce Subscription transitions to on-hold status.