One of the items that’s long been on my personal wishlist for Sketch is the ability to work natively with responsive layouts, and the next Sketch release, version 3.9, (currently in beta) will finally introduce that via the new Group Resizing feature. Auto Layout-style functionality has been available since Sketch 3.3 via the excellent Sketch Constraints plugin, but being able to work this type of layout magic without third-party plugins will be a major plus.