Microsoft has released a new Xbox One build to its preview users. This preview build includes optimizations and improvements for the Xbox Universal Store. Once the update is available, you can update by launching the Guide and navigating to All Settings > System > Console info & updates.
OS version released: rs1_xbox_rel_1608.160830-2138
Available: 6:00PM PDT 9/1 (1:00 AM GMT 2/9)
Last month, Microsoft released the latest system update for Xbox One which brought Cortana on Xbox One, Background Music for music apps like Pandora, combined Xbox Store and Windows Store for a single cohesive experience across devices and more. Microsoft will be soon releasing new features like Clubs on Xbox Live, Looking for Group (LFG) on Xbox Live and Arena on Xbox Live for Xbox Preview members.