Linus Torvalds has released Linux 7.0, the kernel version shipping with Ubuntu 26.04 LTS. Key highlights include Phase II swap subsystem improvements delivering up to 20% better throughput, EXT4 concurrent direct I/O write improvements, a new generic filesystem error reporting framework via fsnotify, XFS self-healing via a systemd-managed background daemon, Intel TSX re-enabled by default on unaffected 10th gen+ CPUs for multi-threaded performance gains, and mainline hardware-accelerated H.264/H.265 decoding for Rockchip RK3588/RK3576 SBCs. Graphics improvements cover AMD GCN 1.0/1.1 stability, NVK large page support, and Intel Arc Battlemage D3cold power saving. The legacy laptop_mode power feature is removed. Rust support is now permanent and non-experimental. Other additions include BPF filtering for io_uring, ML-DSA post-quantum signatures replacing SHA-1 module signing, Rock Band 4 Bluetooth guitar support, and thread/file operation performance improvements of 10-16%.
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