Ubuntu

Sep 22, 2026 · Operations

Linux 7.3 Preview: Btrfs 5x Speedup, Chinese Engineers Drive Key Optimizations

Linux 7.3, expected October 18, delivers major performance gains: Btrfs and EXT4 speedups, a KSM fix reducing latency from 705ms to 1.44ms, ByteDance's scheduler restructuring cutting worst-case latency 90%, and extensive security hardening including NTFS3 fixes and BPF verifier enhancements, with new hardware support for Apple Silicon USB4 and AMD Zen 6.