Microsoft is retiring the sidebar app list feature from its Edge browser, starting with users signed in with a Microsoft account. The ability to add new apps to the sidebar has already been disabled, and existing pinned apps will be removed in a future update. Users will receive notifications prior to the full removal of the feature. Microsoft has not provided a direct replacement for the sidebar app list, and while features like Split Screen remain available, they do not replicate the sidebar's quick-access functionality. Microsoft plans to continue developing its Copilot integration within Edge, despite mixed user responses to the removal of the sidebar app list.