CachyOS Adds Kyber NVMe Scheduler and New Default Package Manager

CachyOS, the performance-tuned Arch Linux derivative, has rolled out its April 2026 update, introducing a notable shift in storage management and package handling. The distribution now defaults to the Kyber NVMe I/O scheduler, a move designed to optimize latency and throughput for solid-state drives. This scheduler prioritizes fairness and responsiveness, making it a strong fit for modern NVMe hardware where traditional schedulers like CFQ or Deadline may introduce unnecessary overhead.

Alongside this storage enhancement, CachyOS has switched its default package manager to a more streamlined tool, aimed at improving both speed and user experience. The change reflects a broader trend in the Linux ecosystem toward simplifying package management without sacrificing flexibility. While the specific package manager has not been named in the release notes, the update signals a clear commitment to reducing friction for users who demand peak performance from their systems.

These adjustments come as part of CachyOS’s ongoing effort to differentiate itself in the crowded Arch-based landscape. By focusing on low-level optimizations like the Kyber scheduler, the distribution appeals to power users and enthusiasts who prioritize hardware efficiency. The Kyber scheduler, originally developed for low-latency block devices, uses a token-based algorithm to regulate I/O requests, which can significantly reduce tail latencies in NVMe drives compared to older approaches.

For existing users, the update is available through the standard system upgrade process. New installations will automatically benefit from these defaults, ensuring a smoother out-of-the-box experience. As CachyOS continues to refine its kernel and toolchain choices, it remains a compelling option for those who want Arch’s flexibility without the manual tuning overhead.