The Linux kernel just got some important upgrades – here’s what’s new in 6.17
Jon Hicks/Stone/Getty Images Follow ZDNET:Add us as a preferred source This release also revamps CPU vulnerability management by unifying kernel command-line mitigation options for ancient security holes, such as Spectre and Meltdown. Despite their age, these security problems persist. The new kernel makes it easier for server administrators to streamline performance tweaks and security controls….
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This release also revamps CPU vulnerability management by unifying kernel command-line mitigation options for ancient security holes, such as Spectre and Meltdown. Despite their age, these security problems persist. The new kernel makes it easier for server administrators to streamline performance tweaks and security controls.
On the storage front, Btrfs gains experimental large-folio support for efficient memory access. In the same release, the most popular Linux file system, Ext4, introduces buffered I/O control. Two new system calls, file_getattr() and file_setattr(), are included for advanced inode file system attribute management.
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For networking, the enhancements include new gateway routing for the Management Component Transport Protocol (MCTP), expansion of the multipath TCP feature, and added support for the DualPI2 congestion control protocol.
Linux 6.17 is not a long-term support (LTS) release. Users who require extended support can stick to 6.12 or wait for the anticipated 6.18 LTS milestone.
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Distributions such as the forthcoming Ubuntu 25.10, currently in beta, have already adopted 6.17 in their latest builds. You can expect to see cutting-edge, rolling distributions, such as Arch Linux, openSUSE Tumbleweed, and Fedora Rawhide, release the 6.17 kernel in the next few days and weeks.
As usual, the release opens the merge window for kernel 6.18, with dozens of pull requests queued up for review by Torvalds and the core maintainers. Since it will be an LTS release, I expect to see significant improvements in this anticipated end-of-the-year release.
