Claude New Feature

Yesterday, I was using Claude when I realized there was a new feature with the artifacts. There was a dropdown menu near the "expand" button then a "pop-out" button which opened the artifact in its own window. There was a pin button in the top right corner of the pop-out window that allowed me to pin the window on top, so it would be visible above all other windows. I can access the artifact anytime from any other application since it was pinned on top. That feature is gone now today but I used it all day yesterday. Does anyone know if this is something that is coming in a new update? It was SO useful since I have an artifact to-do list. I was able to check it off while using my Adobe products without having to switch apps.