Amazon is replacing Android on new Fire TV hardware with its own Vega OS, debuting on the Fire TV Stick 4K Select. While major streaming apps are supported, sideloading is gone "because, well, this isn't Android anymore," notes 9to5Google. The company says "only apps from the Amazon Appstore are available for download." From the report: The company hasn't fully detailed all of the ins and outs of Vega, but Amazon hints that this is a move in the interest of performance. In a post, Amazon touches on Vega being "remarkably fast" despite the low-end hardware of its new Fire TV Stick 4K Select: "Our newest Fire TV Stick, the 4K Select, helps you maximize every pixel of your 4K TVs at an incredible value. It delivers vibrant 4K picture quality with HDR10+ support and apps that launch remarkably fast. The performance comes from our new operating system, Vega, which is responsive and highly efficient. Everything you need is right in the box -- it works with your favorite streaming services, and will soon support Xbox Gaming, Luna, and Alexa+." As pointed out by AFTVNews, the Fire TV 4K Select offers a mere 1GB of RAM, which is half as much as prior generations. So, in a way, that does speak to how lightweight this new platform is. But the bigger question is around apps. Amazon says that "your favorite streaming services" still work with Vega, and that Xbox, Luna, and Alexa+ will be coming "soon" (though they're already supported on existing Android-based Fire TV devices).Read more of this story at Slashdot.