Linus Torvalds has officially released Linux kernel 7.3, bringing faster storage performance and broader silicon support. The update expands compatibility for AMD Zen 6 processors, adds early groundwork for Apple M3 chips, and introduces initial driver support for the Steam Controller 2026. The stable release is now available for system administrators and distribution maintainers to deploy.
The core kernel accelerates input output operations, boosting overall performance for read and write intensive tasks like database hosting. File system optimizations extend to Btrfs, which receives performance speedups for everyday file transactions. Several long standing storage bugs are also resolved, including a firmware reporting glitch that previously triggered errors on Samsung 990 PRO and 990 EVO Plus solid state drives. The developers also fixed boot hangs on multiprocessor hardware that had persisted since 2024.
Hardware detection expands across several architecture lines. The kernel can now identify energy efficient dense cores for AMD Zen 6 architectures, while updated HSMP drivers prepare the system for upcoming desktop silicon. For graphics, older AMD cards built on GCN architecture receive DRM format modifiers alongside improved recovery protocols after GPU crashes. Apple hardware support moves forward as well, adding foundational code for M3 Pro, M3 Max, and M3 Ultra processors, though full hardware functionality remains in early development.
Gaming and graphics systems see targeted upgrades through collaboration with Valve engineers. Linux 7.3 introduces an initial driver for the Steam Controller 2026 and improves video memory allocation on hardware with low VRAM pools. With the stable branch published, developers now shift their focus to the upcoming Linux 7.4 merge window, which will accept major subsystem pull requests over the next 2 weeks.
