Marked Share now features share cards for public posts, profiles, and collections, enhancing how links are displayed across platforms like Mastodon and Slack. The share cards, which include title, author, and date, replace generic site images and are generated using Snapsly's API. Additionally, highlights from documents can now be shared as images. Recent updates also include improved document interactions and user onboarding features. The post invites the community to support on Product Hunt and thanks readers for their engagement.