How can I track recent changes in Grid FX. Is there a changelog history?
You can always see what’s new, current version and most recent changes done by checking the live version history.
Can I use this plugin to present my photo attachments in a grid?
You could certainly use grid fx to showcase your photo attachments, either from specific post, category, or multiple categories at once. This allow you to create flexible attachment-based galleries like the ones in this demo.
Can I use this plugin to create a gallery or grid from specific posts and photos?
Yes. The plugin allow you to do a grid for specific posts only by including only the IDs for posts/images you want. This way you can show a mixed gallery, or mixed content grid regardless of category or taxonomy.