
The non–Long-Term Support (non-LTS) versions of the Linux Kernel typically have very brief lifespans. For instance, Linux Kernel version 6.13, released on January 19, 2025, has already reached its end-of-life, with its support window lasting a mere three months—concluding on April 20, 2025.
Linux Kernel 6.13 introduced several notable enhancements, including support for low-latency preemption, user-space shadow stacks for AArch64 via protected control stacks, the ability to run Linux in protected virtual machines, support for 6-node sub-NUMA clustering on Intel platforms, and split-lock detection on AMD CPUs.
In the aftermath of the Linux community’s decision to remove contributions from Russian developers, the Linux Foundation issued guidelines to help open-source projects mitigate associated risks.
As this version was not designated for long-term support, maintenance has officially ceased. Kernel maintainer Greg Kroah-Hartman recently published version 6.13.12 as its final release. The kernel has now been marked EOL (End of Life) on Kernel.org, signifying the cessation of all updates.
The newer Linux Kernel, version 6.14, was released on March 24, 2025, and introduces features such as read balancing for Btrfs RAID1 arrays, the NTSync subsystem for WinNT synchronization primitives, and support for uncached buffered I/O operations.
At present, most major Linux distributions have adopted Kernel 6.14. Users still running earlier versions are strongly encouraged to upgrade to Kernel 6.14 to continue receiving security patches, feature enhancements, and bug fixes.
For users seeking stability without frequent upgrades, it may be prudent to migrate to a Long-Term Support (LTS) release. Currently supported LTS versions include Linux Kernel 6.12 LTS and 6.6 LTS, both maintained through December 2026.
The support window for Linux Kernel 6.14 extends from March 24, 2025, until approximately mid-May 2025, after which Linux Kernel 6.15 will be released. Like its predecessor, version 6.15 will also be a non-LTS release, suited for rolling update environments.
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