Perhaps you've seen a few more images and Vines populating your Twitter feed this afternoon? That's because the web version of Twitter reflects the service's latest update: image and Vine previews below related tweets. Both the iOS and Android versions of Twitter also get the update today. The update is certain to change the Twitter experience, as our feeds are already bursting with images and Vine previews (as adorably demonstrated above). On mobile, the update also makes replies, retweets and favorites available right from your timeline -- one more shortcut to retweeting those cat pictures.