YITH WooCommerce Subscription Premium 3.9.0

New: support for WooCommerce 6.3
Update: YITH plugin framework
Fix: fixed issue with the customer emails when the "send to admin" option is checked
Fix: fixed style with YITH Proteo theme

New: support for WooCommerce 6.1
Update: YITH plugin framework
Fix: Fix to prevent fatal error with YITH Multi Currency Switcher for WooCommerce
Fix: Fix to prevent subscription purchase if there is another active also in other languages

* New: support for WooCommerce 6.0
* New: support for Stripe SEPA Direct Debit gateway with WooCommerce Stripe Gateway plugin
* Fix: issues with WooCommerce Stripe Gateway source payment
* Fix: failed attempts counter not updating
* Fix: prevent fatal error on report due to no longer existing products
* Fix: load or copy billing/shipping info inside the subscription editor
* Dev: added filter 'ywsbs_is_limited' to filter if a product is a limited subscription