There was an issue when copying a product with shipping restrictions, the new product does not have the shipping restrictions. This has been resolved

The issue with Custom bundles and child products being updated through API has been resolved

The PayPal issue on fixed price bundles where the children were being sent with $0 cost has been resolved

The issue where $0 orders were being sent to StackPay gateway has been resolved. $0 order totals are not sent to the gateway.