Ubuntu Now Has a Rolling Release Model! But Not For The Distro

Ubuntu is one of the most stable Linux distros out there, provided you’re running its LTS release. Now imagine giving that up for a rolling release model. Feels exciting, right? Stop fantasizing then, as today’s not the day that happens.

Instead, Canonical’s latest announcement introduces a rolling release approach for the virtualization stack, which swaps the usual LTS cycle for a faster, six-month upgrade cycle.

Confidential computing is the driving force behind this move, as Canonical’s Ijlal Loutfi emphasizes that the different pieces of the stack rarely arrive at the same time.

A processor might support a new feature before the kernel can expose it, before QEMU can handle it, before libvirt gives users a way to turn it on, and before the firmware and attestation tools are ready to make it actually usable.

How does this work?

The virtualization HWE stack has four parts. qemu-hwe handles the hypervisor and system emulation; libvirt-hwe covers virtualization management; edk2-hwe brings newer OVMF firmware for UEFI booting; and seabios-hwe does the same for BIOS compatibility.

It’s the same approach Ubuntu already runs for kernels, just extended across the rest of the virtualization chain.

Switching to this is entirely optional, and during these first two years of Ubuntu 26.04 LTS, all four packages get refreshed every six months, but only after a dry run in an interim…