[pjmlp]

This is not official.

Azure Linux 4.0 is the next version of Azure Linux (duh), and WSL base distro.

[sterlind]

is it replacing CBL-Mariner as the utility distro for WSL?

[pjmlp]

Yes, Azure Linux 4 is the evolution of CBL Mariner.

Search for Linux talks on Microsoft Developer channel, related to BUILD 2026.