* Fix-PHP error on checkout page if order total is zero.

* Fix-Prevent JavaScript error triggered when a different payment method is being used and a required field is left empty

* Tweak -Remove CSS margins on 360 images to prevent upward scrolling.

* Fix-Add link to order in email.

* Fix-Added missing JS method ‘Composite_Availability_View::get_components_availability_string’.
* Fix-Prevent JS errors if third-party code has already started the Backbone history.
* Fix-Renamed summary element button text from ‘View’ to ‘Edit’ when the chosen product is configurable.
* Tweak-Detect scroll anchoring support and let the browser handle things when available.
* Tweak-Prevent autotransitioning if the selected product is out of stock.
* Tweak-Consider if customer is tax exempt when formatting cart item display prices.

* Fix: waitlist elements not showing with events tickets (4.12)

* New: Various new filters

* Fixes for SagePay Direct 3D Secure

* Fix-Prevented stock meta form saving while ‘woocommerce_process_product_meta’ is running. Should prevent some edge-case issues with duplicate bundled items.
* Tweak-Consider if customer is tax exempt when formatting cart item display prices.
* Tweak-It is now possible to calculate and display the quantity of remaining bundles based on the availability of the bundled product with the lowest stock (bundles with static quantities only). To enable, use: add_filter( ‘woocommerce_bundle_display_bundled_items_stock_quantity’, ‘__return_true’ );
* Tweak-Dropped the use of debug options-please use debug constants instead. See ‘WC_Bundles::define_constants’.

* Fixed InSite.