Facebook new [bigger] shared link thumbnail images

Facebook recently has made a change to shared link thumbnail image size. The whole layout of the share has been changed as well. The big image is now located under the text, not in the left column.

While this new layout yet to be transitioned to the regular API shares, there is a way to make this happen right now. Version 3 has an option to let Facebook decide the share info by itself using your OG tags and other info.

If you check this option and your image is up to the specifications Facebook will make your share presented in the new layout. The recommended og:image size for this feature is 1200x627px, minimum is 560x292px.