We recently integrated GPI media library into the core master theme and re-write it from scratch. It's currently hidden in a feature toggle (Planet 4 > Features) and can be enabled in any site.

We named it "Image Archive" to avoid confusion with that native Media Library (after consultation with GPI). Once activated, a new menu appears in the sidebar right below the Media Library.

We need a UX review of the current implementation, in order to decide when to go live and disable the old media library plugin.

This needs to be compared with the old version, which you can access on this page by clicking the Upload From GPI Media Library" button.