In upgrading AVH Amazon to the most recent version (3.3.1), my whole WP install crashes with:
Fatal error: Call to undefined function add_image_size() in /home/dave/public_html/blog/wp/wp-content/plugins/avh-amazon/2.8/avh-amazon.client.php on line 1109
The error is only recoverable by deleting the AVH Amazon directory. The previous version ran fine.
I am running WP 2.8.4, which is supposedly a supported version; I was previously running 3.2.1 of AVH Amazon.