This new release has two interesting changes. The first is the higer “priority” on set on the plugin to the head content is added before any other plugins that add something in the head section.
The second feature is the ability to add a Facebook Open Graph metatag for the post image: the plugin extracts the first image from the post gallery and uses its thumbnail to create an Open Graph metatag.
Since few days the Facebook like button publishes on the wall of who press it a little page excerpt selecting an image from all the ones on the page if not meta tag is specified. My wife claimed that images selected by Facebook are not the right ones… so I added that simple feature. More I discovered that Facebook does not read the full head section of an HTML page, so if the og:meta is “too low”, Facebbok does not find it.