You can now navigate imags in galleries, search pages, and groups more quickly and intuitively. When you click on the Play ▶ button that's visible when you mouse-hover a thumbnail, you get a window with the image in larger size, and can navigate between all images visible on the page with the left/right arrow keys, the buttons at the top, or a swipe gesture.
You can also mouse-hover for the plate-solution annotations, if present, and click to zoom.
If you want to access the actual image page (e.g. if you want to see technical card, description, comments...), you can do it by clicking on the Link 🔗 button at the top-left corner.
You can also set images to go on a slideshow with the Play ▶ button, and even go fullscreen!