GD SEO Toolbox Pro 2.6 is a new, major update that brings new module for adding new metadata elements into the Google AMP pages, admin side accessibility and various plugin core improvements.
Google AMP pages use completely different page structure compared to normal pages, so normal methods for adding SEO related data will not work with AMP. But, with the new module, GD SEO Toolbox Pro can add page description into AMP metadata and, if the image is missing, to add it to metadata. The plugin will attempt to add featured image, and if that is missing, it will add the first image from the post content.
The plugin has new settings panel for the AMP module where you have simple settings to configure it. AMP support works for AMP plugin by Automattic and requires GD SEO Toolbox Pro Metadata module too because it uses it to generate metadata for the pages.
Other changes in this version include many code organisation changes, removal of some unused files and objects, and improvements related to the plugin admin side accessibility with proper form elements labelling, ARIA specific attributes for various elements and more.
If you notice any problems with the plugin, stop by the support forums to report it. Let me know what you think about the new version, and as always, suggestions are welcome.