Most LTS users pick the long-term release so they can stop reading kernel release notes for two years. That quiet arrangement just shifted underneath us. The point release that landed on September 10, 2026 ships a Linux 7.0 kernel to Ubuntu desktops via the Hardware Enablement backport path, and most people will receive it the next time they run an ordinary apt upgrade. No new ISO, no manual intervention, no forced migration. That is the news worth paying attention to.
I have been on Ubuntu LTS for my daily driver since the 22.04 cycle, and I have learned to expect point releases to be dull affairs. They patch the installer, refresh the wallpaper, fix a handful of Snap regressions, and call it a quarter. This one breaks that pattern. The HWE stack (Ubuntu’s mechanism for backporting a fresher kernel and graphics pipeline onto an LTS release) moved up a major version, and most users are going to wake up on it without doing anything at all.
Here is what is actually new in the release notes, what I have checked against a couple of test boxes, and where the trade-offs sit.
What changes when an LTS jumps a kernel major
The HWE path exists because the world keeps moving while LTS users wait. Hardware vendors ship new Wi-Fi chips, new audio codecs, new GPU revisions, and Canonical’s answer has always been to backport a recent kernel onto the LTS instead of forcing a full version upgrade. Every couple of point releases, HWE catches up. In 24.04.4, the HWE kernel was 6.17. In 24.04.5, it is 7.0.
If you installed Ubuntu Desktop at any point in the last year and accepted defaults, your next normal upgrade cycle will move you onto Linux 7.0. Server installations are unaffected unless the admin opts in. Servers stay on the older general-availability kernel for the predictable, multi-year window that production hosts actually want. That split is the whole reason HWE exists, and the 24.04.5 release respects it.
A few things this actually changes day to day:
- Newer laptop Wi-Fi and audio drivers generally light up without manual DKMS builds (DKMS is the framework that compiles out-of-tree kernel modules against your running kernel).
- The Mesa graphics stack picks up its 26.2 release alongside the kernel bump, which I will dig into below.
- Custom modules pinned to a specific 6.x kernel header will need a rebuild. Run
dpkg --list | grep linux-headersfirst and confirm nothing mission-critical breaks before you upgrade.
To check whether you are on HWE right now, run uname -r and look for -hwe- in the version string. A -generic suffix means you are still on the GA kernel and you will not get the upgrade unless you explicitly opt in.
Mesa 26.2 is where most of the visible gain lives
The kernel bump is the headline, but the Mesa 26.2 graphics stack that ships in the same release is the part that actually changes how games and browsers feel on day one. Mesa is the kind of software you only notice when something breaks, but the version-to-version differences quietly fix entire classes of glitches and add new hardware support without anybody writing a press release.
The concrete wins I expect most readers to see:
- Steam games on AMD and Intel GPUs that previously had visual artifacts at certain resolutions render cleanly after the upgrade.
- Hardware-accelerated video playback in Firefox and Chromium is more reliable at 4K, which matters if you stream anything above 1080p on a modern laptop.
- Newer Intel integrated GPUs get official support without a kernel parameter workaround.
- The Nouveau path for older Nvidia cards picks up a few more chipsets.
If your machine runs Nvidia’s proprietary driver, the Mesa improvements will largely skip you. The proprietary driver does not use Mesa for the main 3D pipeline, and Nvidia’s release cadence is not tied to Ubuntu point releases. You may still benefit from the kernel bump on display detection or suspend, but the headline gains are for everyone else.
The reinstall myth, and the real footgun
The way 24.04.5 reaches existing installs is the standard package pipeline, not a forced migration. There is no “major upgrade” prompt, no launcher dialog, no reboot prompt asking for permission. You will simply see a pile of new packages the next time you run an update. I want to flag one specific footgun, because I have watched a lot of people trip on it over the years.
Run these three commands in order:
sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
The final dist-upgrade is what actually triggers the HWE kernel migration. If you treat it as optional, you will stay on your current kernel and miss the entire point release. Plenty of long-time Ubuntu users reflexively skip the third command, which is exactly why their systems lag behind LTS point releases by a quarter or more.
After the third command finishes, reboot when the package manager tells you to, and check uname -r again. You should see a 7.0 kernel string with -hwe- in the suffix.
The flavors all got updated on the same day
Canonical does not only ship Ubuntu proper. The September 10 release covered the entire family of official flavors in a single coordinated drop, including Kubuntu, Lubuntu, Xubuntu, Ubuntu MATE, Ubuntu Budgie, Ubuntu Studio, Ubuntu Kylin, Edubuntu, Ubuntu Cinnamon, and Ubuntu Unity. They all got their respective 24.04.5 images on the same day, which matters if your daily driver is anything other than the default GNOME shell.
The support windows are not uniform and that is the part most people overlook. The core Ubuntu Desktop, Server, Cloud, and Core images get five years of standard maintenance through 2029. Most of the flavors are on a three-year window, which means they fall off in 2027. Ubuntu Studio is also on the three-year track.
If you are running a flavor for the long haul and you do not want a fresh install in 2027, plan on migrating to a newer LTS or to the parent Ubuntu release at some point in the next two years. That has always been the trade-off for picking a flavor, and it is worth naming explicitly when you are choosing one today.
Trade-offs worth knowing before you upgrade
The HWE jump is welcome news for desktop users with newer hardware, and most installs will get through it without drama. There are real costs you should think about before you run dist-upgrade on a machine you cannot afford to break.
A few honest limitations to plan around:
- Any third-party kernel module you have built yourself, including custom DKMS packages and out-of-tree Wi-Fi drivers for older hardware, will need to be rebuilt against the new kernel. If a DKMS build fails, your system can end up with a working 7.0 kernel and a broken driver stack. Test on a non-critical box first.
- Container workloads pinned to a specific kernel ABI (the application binary interface, the contract between the kernel and the modules it loads) may need a rebuild. LXC and unprivileged Docker setups are usually fine; LXD on older 5.x kernels occasionally need an
lxd initto refresh. - ZFS on root depends on OpenZFS tracking every HWE bump. The Ubuntu team’s record here is solid, but the lag is usually a few days behind the official kernel release. Do not upgrade a ZFS root on day one.
- Production hosts on the GA kernel will be unaffected by all of this, which is exactly why GA exists. Do not “fix” something that is not broken on a server.
When to wait and when to jump
If your desktop hardware is from the last three years and you control the machine, you will probably feel the upgrade. Newer Wi-Fi, fresh GPU support, fewer Wayland glitches, and a Mesa stack that quietly fixes things you did not realize were broken. The risk is low, the upside is real, and the rollback path is one apt install linux-image-6.17.0-X-generic away.
If you are running stable infrastructure on 24.04 GA, leave it alone. The whole reason GA exists is to give you two to three years of the same kernel, and Canonical built the HWE path so the rest of us do not have to choose between new hardware support and a quiet life.
Either way, the bigger story is that the LTS promise has quietly been renegotiated. Ubuntu 24.04 users are running Linux 7.0 within a year of release, and most of them will never have to think about how that happened. That is the win.