I didn't get the email...

On October 4th, 2004, we released version 4.0 of the Amazon E-Commerce Service (ECS), previously referred to in beta as AWS 4.0. ECS 4.0 provides unprecedented access to Amazon’s product data and E-Commerce functionality allowing developers, Web site owners and merchants to leverage the data and functionality that Amazon uses to power its own E-Commerce business. It provides access to detailed product and pricing information for all items across all Amazon product categories – this information includes detailed product attributes, product images and customer-supplied content such as reviews, Wish Lists and Listmania lists. In addition, ECS 4.0 provides advanced search, remote shopping cart and enhanced Wish List search capabilities for enhancing and personalizing your Web site or application.

[ Amazon.com ]

I'm a bit put off that I didn't get the memo. I've been irritated with the 3.0 AWS for a while now, my updates frequently get a 530 error, wish lists stopped working so long ago, their entire catalog is old or unavailable through 3.0. Good to see they have the replacement. Bad to see that they didn't send out an email.