We've known for weeks now that Roku is planning on releasing a whole new crop of streaming boxes. Now it's official: Roku has announced four new products, including replacements for all of its products except the Roku Streaming Stick.The Roku ExpressThe new lineup looks pretty much as expected. The Roku 1 is being replaced by the lightweight Roku Express, which doubles the old model's processing power while cutting 75% of its size. At $30, the Roku Express will be the cheapest Roku ever and will compete more directly with streaming sticks like the Chromecast.The Roku Premiere+The Roku 2 and Roku 3 are being replaced by the Roku Premiere and Roku Premiere+. Both Premiere models offer 4K video, which was previously only available on the Roku 4. Roku has also added a “Night Listening” feature to these devices, which compresses the sound to solve the old “whispers and explosions” problem. The Premiere and Premiere+ have a form factor that looks a lot like the current Roku 4. The Premiere+ supports HDR video.The Roku UltraThe fairly new Roku 4 will be replaced by the Roku Ultra, which updates the 4K streaming box with the new night listening feature and some improved hardware. The top model is still the only one with the A and B gaming buttons on the remote and the Find My Remote feature on the box. Like the Premiere+, the Ultra supports HDR video.You can expect all of this new hardware very soon: The Verge reports that the new boxes will ship sometime in October. There will also be a minor update to Roku's operating system.