Ubuntu

Jul 14, 2026 · Fundamentals

Why Can't Your WSL Ubuntu Use the Latest Linux Kernel? A Deep Dive into Microsoft’s Kernel Strategy

The article explains why WSL still runs a 6.18‑based kernel despite Linux 7.1 being released, detailing Microsoft’s LTS‑only policy, the out‑of‑tree patches applied to the WSL kernel, the shared‑kernel model across distributions, the six‑step update process, and how users can manually replace the kernel.