Linus Torvalds has announced the release of Linux kernel 6.12, the latest stable version that comes with a host of new features and improvements aimed at enhancing system performance and usability.
Notable updates in this version include real-time “PREEMPT_RT” support, a new scheduling algorithm called sched_ext, and the unique integration of DRM panic messages displayed as QR codes. The support for Clang, particularly for nolibc, is also a highlight, along with an updated cpuidle tool that now provides clearer insights into idle state information.
Developers will benefit from the introduction of SWIG bindings for libcpupower, enabling them to better script with this library. The kernel also streamlines the loading of microcode patches for AMD’s Zen architecture and enhances error address translation capabilities using the UEFI platform runtime mechanism.
Among the significant improvements, Linux 6.12 adds file-backed mount support for the EROFS filesystem, introduces guest PMU capabilities for LoongArch KVM, and implements ACPI-based enumeration for RISC-V interrupt controllers. A new thermal core testing module allows for the creation of mock thermal zones for testing purposes.
In terms of networking, this release integrates Device Memory TCP, facilitating zero-copy TCP payloads, and brings IPv6 enhancements alongside the ability to read Physical Hardware Clock timestamps with extended precision.
Drivers have also been updated, with new ones for various hardware platforms, including support for Mediatek MTK7981, Realtek automotive PCIe devices, and several improvements in power management drivers for Intel and AMD processors.
Linux kernel 6.12 continues to advance filesystem capabilities, updates to the EXT4, Btrfs, exFAT, and Bcachefs filesystems are included, and several bug fixes and documentation improvements are part of the package.
For those interested in the new kernel, it can be downloaded from Linus Torvalds’ git tree or the official kernel.org site. However, it is generally advisable to wait for it to appear in your distribution’s stable repositories before performing an upgrade.
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