Add the 'hybrid_media_grabber_dimensions' hook.
Remove code that removed the old filter on 'wp_video_shortcode'.
Move $max_width and $max_height around in the code so that it makes a little more sense.
Thumbnail support for audio and video attachments.
Use the [audio] and [video] shortcodes for hybrid_audio_attachment() and hybrid_video_attachment(), which are legacy functions that are rarely used.  Maybe they'll get some use now.  It's nice to see WP catching up and doing something about this.  Yay!
Create and load the 'wish-list.php' file, which is a collection of functions that I wish were added to WP core.  This also introduces the hybrid_attachment_is_audio() and hybrid_attachment_is_video() functions.
Remove the 'prepend_attachment' filter when using hybrid_get_content_template(). Since content templates are a way of bypassing the global template hierarchy, WP doesn't auto-remove this for us like normal.  This also means that this function expects that the theme developer will handle the output of attachment content.