Amazon is moving all new Fire Sticks to its proprietary Vega OS, which blocks sideloading of apps from outside the Amazon Appstore. The new Fire Stick HD and Fire Stick 4K Select already run Vega, and Amazon has confirmed internally that all future Fire Stick devices will ditch Android for Vega. This means users can no longer install apps like Kodi or other third-party tools, closing off a decade-long feature that enthusiasts and privacy-conscious users relied on. The shift also limits app choice to whatever Amazon chooses to offer in its store.