It looks like the developments in the new version is pretty minor, last version of SATT is 2.1.5, first version of All Products for WooCommerce Subscriptions is 2.2.0:
2019.05.08 – version 2.2.4
* Tweak – Minify CSS.
2019.05.08 – version 2.2.3
* Fix – Broken empty state styles under WP 5.2+.
2019.04.11 – version 2.2.2
* Fix – Fatal error when activating the extension with WooCommerce inactive.
* Fix – Plan discounts for Composites that contain Bundles are new calculated correctly in the single-product page.
2019.03.30 – version 2.2.1
* Tweak – Plugin headers.
2019.03.26 – version 2.2.0
* Important – Changed plugin name to ‘WooCommerce All Products for Subscriptions. File structure, classes and hooks were left intact for backwards compatibility.
* Important – Changed text domain to ‘woocommerce-all-products-for-subscriptions.
* Feature – NUX improvements.
* Tweak – ‘Product Data > Subscriptions’ and ‘WooCommerce > Settings > Subscriptions’ design tweaks.
