When is Linux Kernel 5.15 (LTS) end of life?

Linux Kernel 5.15 (LTS) reaches end of life on Dec 31, 2026 (in 2 months). After that it gets no more updates, including security fixes.

What is the latest version of Linux Kernel 5.15 (LTS)?

The latest Linux Kernel 5.15 (LTS) release is 5.15.222, released on Oct 3, 2026.

Linux Kernel 5.15 (LTS) was released on Oct 31, 2021.

Run uname -r, then paste the result into the “Am I up to date?” box on this page.

Supported until Dec 31, 2026

5.15.222 Release notes ↗

Yes

Linux Kernel 5.15 (LTS) is supported until Dec 31, 2026 (in 2 months).

Supported Today What “supported” means

Is Linux Kernel 5.15 (LTS) still supported?: Yes. Linux Kernel 5.15 (LTS) is supported until Dec 31, 2026 (in 2 months).
When is Linux Kernel 5.15 (LTS) end of life?: Linux Kernel 5.15 (LTS) reaches end of life on Dec 31, 2026 (in 2 months). After that it gets no more updates, including security fixes.
What is the latest version of Linux Kernel 5.15 (LTS)?: The latest Linux Kernel 5.15 (LTS) release is 5.15.222, released on Oct 3, 2026.
When was Linux Kernel 5.15 (LTS) released?: Linux Kernel 5.15 (LTS) was released on Oct 31, 2021.
How do I check which Linux Kernel version I have?: Run uname -r, then paste the result into the “Am I up to date?” box on this page.

The history fills in as new versions come out.

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