Instagram is testing a new profile layout that replaces the traditional square grid with vertical rectangles. This redesign aims to better accommodate the predominantly vertical content being uploaded, such as 4:3 photos and 9:16 videos, which often suffer from brutal cropping to fit the square format. CEO Adam Mosseri and spokesperson Christine Pai have confirmed that the change is currently being tested with a small group of users, and feedback will determine if it will be rolled out widely. While some users may find the change disruptive to their carefully curated profiles, Mosseri argues that it's a necessary update to align with modern content formats. The transition, first hinted at in 2022, suggests Instagram's ongoing efforts to evolve with user behavior and platform trends.