mra13 on "[Plugin: WordPress Simple Paypal Shopping Cart] Error! The shipping price validation failed."

Error Message: "Error! The shipping price validation failed."
WP Simple Paypal Shopping cart 4.2.0
Wordpress 4.4.2

Everything was working fine for years and then SUDDENLY our site was broken with this error message.

After much hunting I've determined that you changed the shortcode significantly without leaving any backwards compatibility for the old shortcode.

I imagine that this means that thousands of websites suddenly have lost their e-commerce capability oveight and are currently scrambling to find new shopping cart solutions as ALL SALES are now not possible.

FOR THOSE WHO HAVE THIS PROBLEM RIGHT NOW

Old Shorcode Format:
[wp_cart:Carrot Seed Essential Oil Organic 0.6 oz:price:16.828566:shipping:0.298671:end]

NEW Shortcode Format:
[wp_cart_button name="Carrot Seed Essential Oil Organic 0.6" price="16.828566" shipping="0.298671"]

My question for the developers:

1. Are you adding backwards compatibility to a new version you intend to release in the next 48 hours?

2. If not... how do you suggest I change the well over 300 shortcodes littered throughout my site.

3. And finally... if you did a change with a negative impact like this one, with such a huge effect on our income without waing, or backwards compatibility... how can we trust your company with future updates... also regarding the paid plugins we've purchased over the years. This seems like a very badly thought out change with very far reaching consequences to our businesses.

Many thanks for your prompt response.

https://wordpress.org/plugins/wordpress-simple-paypal-shopping-cart/