Linux Kernel 7.3 is currently in its merge window, introducing major performance improvements, particularly in memory management, and achieving feature completeness for sched_ext. The release enhances hardware support for AMD's UALink infrastructure and includes initial support for Apple M3 Pro/Max/Ultra SoCs, while also adding PowerPC support for Rust-in-kernel. Significant security hardening has been implemented for the NTFS3 filesystem, alongside optimizations for ext4 and btrfs filesystems. The development process is evolving, with Linus Torvalds utilizing AI assistance for debugging, as the kernel is anticipated to be a Long Term Support candidate when it officially releases in October 2026

Linux Kernel 7.3: What's New in the Upcoming Kernel Release

Linux kernel 7.3 is now in its active merge window, bringing massive performance optimizations to memory management and marking sched_ext as feature complete. The release adds significant hardware support for AMD's UALink infrastructure and CXL Type-2 accelerators, while also providing initial mainline boot support for Apple M3 Pro/Max/Ultra SoCs. Rust-in-kernel officially gains PowerPC support, and the NTFS3 filesystem receives a major security hardening alongside Alternative Data Streams. As a likely Long Term Support candidate, this cycle also highlights the community's shifting development practices, including Linus Torvalds using Gemini AI to debug a one-character Intel Xe GPU bug.

Linux Kernel 7.3: What's New in the Upcoming Kernel Release @ Linux Compatible