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        <title>Release Notes on KnightLi Blog</title>
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        <lastBuildDate>Sun, 26 Apr 2026 16:10:25 +0800</lastBuildDate><atom:link href="https://www.knightli.com/en/tags/release-notes/index.xml" rel="self" type="application/rss+xml" /><item>
        <title>Ubuntu 26.04 LTS Released: Major Desktop Updates with GNOME 50 and Linux 7.0</title>
        <link>https://www.knightli.com/en/2026/04/26/ubuntu-26-04-lts-release-notes/</link>
        <pubDate>Sun, 26 Apr 2026 16:10:25 +0800</pubDate>
        
        <guid>https://www.knightli.com/en/2026/04/26/ubuntu-26-04-lts-release-notes/</guid>
        <description>&lt;p&gt;&lt;code&gt;Ubuntu 26.04 LTS&lt;/code&gt; was released on &lt;strong&gt;April 23, 2026&lt;/strong&gt;, under the codename &lt;code&gt;Resolute Raccoon&lt;/code&gt;. This is the new long-term support release, with standard support through &lt;strong&gt;April 2031&lt;/strong&gt;. If you use &lt;code&gt;Ubuntu Pro&lt;/code&gt;, security maintenance can be extended to &lt;strong&gt;10 years&lt;/strong&gt;.&lt;/p&gt;
&lt;p&gt;If you are upgrading from &lt;code&gt;Ubuntu 24.04 LTS&lt;/code&gt;, this is more than a routine release. It also folds in the major changes introduced across &lt;code&gt;24.10&lt;/code&gt;, &lt;code&gt;25.04&lt;/code&gt;, and &lt;code&gt;25.10&lt;/code&gt;. So this article works best as a quick guide to what is worth checking before you upgrade.&lt;/p&gt;
&lt;p&gt;If you only want the biggest takeaways from this release, remember these four points first:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;code&gt;GNOME 50&lt;/code&gt; has landed in an LTS release, bringing clearer improvements to desktop experience and display support&lt;/li&gt;
&lt;li&gt;&lt;code&gt;Linux kernel 7.0&lt;/code&gt; becomes the new baseline, refreshing both hardware support and the long-term maintenance base&lt;/li&gt;
&lt;li&gt;Ubuntu Desktop has now fully moved to &lt;code&gt;Wayland&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;The default app set has been refreshed across the board, with major updates to &lt;code&gt;Firefox&lt;/code&gt;, &lt;code&gt;LibreOffice&lt;/code&gt;, &lt;code&gt;Thunderbird&lt;/code&gt;, and &lt;code&gt;GIMP&lt;/code&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;h2 id=&#34;1-start-with-the-key-updates&#34;&gt;1. Start with the key updates
&lt;/h2&gt;&lt;ul&gt;
&lt;li&gt;&lt;code&gt;Ubuntu 26.04 LTS&lt;/code&gt; is a long-term support release with standard support through &lt;code&gt;2031-04&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;The desktop environment has been updated to &lt;code&gt;GNOME 50&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;The generic kernel has moved to &lt;code&gt;Linux kernel 7.0&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;Ubuntu Desktop now provides only a &lt;code&gt;Wayland&lt;/code&gt; session&lt;/li&gt;
&lt;li&gt;Older versions cannot jump directly to &lt;code&gt;26.04&lt;/code&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;If you are still on &lt;code&gt;Ubuntu 22.04 LTS&lt;/code&gt; or &lt;code&gt;25.04&lt;/code&gt;, the official recommendation is to upgrade to &lt;code&gt;Ubuntu 24.04 LTS&lt;/code&gt; or &lt;code&gt;25.10&lt;/code&gt; first, then continue to &lt;code&gt;26.04 LTS&lt;/code&gt;.&lt;/p&gt;
&lt;h2 id=&#34;2-biggest-change-1-gnome-50-is-now-in-lts&#34;&gt;2. Biggest change #1: GNOME 50 is now in LTS
&lt;/h2&gt;&lt;p&gt;The most visible desktop-side change this time is that &lt;code&gt;GNOME 50&lt;/code&gt; has finally entered an LTS release. For most users, the value is not one flashy standalone feature, but a smoother desktop experience overall:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Better usability on small screens and narrow windows&lt;/li&gt;
&lt;li&gt;Notifications can be grouped by app&lt;/li&gt;
&lt;li&gt;Continued improvements to HDR, VRR, and fractional scaling&lt;/li&gt;
&lt;li&gt;Better smoothness and stability in remote desktop, Wayland, and NVIDIA-related scenarios&lt;/li&gt;
&lt;li&gt;Stronger accessibility support, including clear updates to the &lt;code&gt;Orca&lt;/code&gt; screen reader&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;Ubuntu has also added a few practical changes of its own:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;GNOME Shell global search can directly find available &lt;code&gt;snap&lt;/code&gt; apps&lt;/li&gt;
&lt;li&gt;Web searches can also be triggered directly from search&lt;/li&gt;
&lt;li&gt;The &lt;code&gt;Yaru&lt;/code&gt; theme continues moving closer to upstream GNOME styling&lt;/li&gt;
&lt;li&gt;Permissions, file access, and drag-and-drop behavior for &lt;code&gt;snap&lt;/code&gt; apps feel more natural on the desktop&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;If you mainly use the desktop edition, the real point of this LTS is not a dramatic visual overhaul. It is that many small frictions from the past have been polished away together.&lt;/p&gt;
&lt;h2 id=&#34;3-biggest-change-2-the-default-apps-got-a-broad-refresh&#34;&gt;3. Biggest change #2: the default apps got a broad refresh
&lt;/h2&gt;&lt;p&gt;Compared with &lt;code&gt;24.04 LTS&lt;/code&gt;, the built-in app set in &lt;code&gt;26.04 LTS&lt;/code&gt; has been updated in a big way:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;&lt;code&gt;Firefox&lt;/code&gt; moves to &lt;code&gt;150&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;&lt;code&gt;LibreOffice&lt;/code&gt; goes from &lt;code&gt;24.2&lt;/code&gt; to &lt;code&gt;25.8&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;&lt;code&gt;Thunderbird&lt;/code&gt; moves to &lt;code&gt;140&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;&lt;code&gt;GIMP&lt;/code&gt; jumps from &lt;code&gt;2.10&lt;/code&gt; to &lt;code&gt;3.2&lt;/code&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;There are also several replacements that matter in day-to-day use:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;The PDF viewer is now &lt;code&gt;Papers&lt;/code&gt;, replacing &lt;code&gt;Evince&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;The image viewer is now &lt;code&gt;Loupe&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;The terminal is now &lt;code&gt;Ptyxis&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;The system monitor is now &lt;code&gt;Resources&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;The default video player is now &lt;code&gt;Showtime&lt;/code&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;The direction behind these changes is clear: Ubuntu is leaning more fully into a new generation of GNOME applications built on &lt;code&gt;GTK4&lt;/code&gt;, &lt;code&gt;libadwaita&lt;/code&gt;, and in some cases Rust-based rewrites.&lt;/p&gt;
&lt;h2 id=&#34;4-biggest-change-3-wayland-is-now-the-only-desktop-session&#34;&gt;4. Biggest change #3: Wayland is now the only desktop session
&lt;/h2&gt;&lt;p&gt;This is the most important change for many long-time users.&lt;/p&gt;
&lt;p&gt;The shift that started in &lt;code&gt;25.10&lt;/code&gt; is now fully settled in &lt;code&gt;26.04 LTS&lt;/code&gt;: Ubuntu Desktop runs only on the &lt;code&gt;Wayland&lt;/code&gt; backend, because &lt;code&gt;GNOME Shell&lt;/code&gt; can no longer run as an &lt;code&gt;X.org&lt;/code&gt; session.&lt;/p&gt;
&lt;p&gt;That does not mean old applications suddenly stop working. The official notes make it clear that &lt;code&gt;X.org&lt;/code&gt; applications can still run through the &lt;code&gt;XWayland&lt;/code&gt; compatibility layer. But if your workflow still depends on older graphics drivers, certain remote desktop methods, screen recording tools, or input method details, this is still something you should verify before upgrading.&lt;/p&gt;
&lt;h2 id=&#34;5-biggest-change-4-linux-kernel-70-and-the-lower-stack-move-forward-together&#34;&gt;5. Biggest change #4: Linux kernel 7.0 and the lower stack move forward together
&lt;/h2&gt;&lt;p&gt;The GA generic stack in &lt;code&gt;Ubuntu 26.04 LTS&lt;/code&gt; moves from &lt;code&gt;Linux 6.8&lt;/code&gt; to &lt;code&gt;Linux 7.0&lt;/code&gt;, and the HWE stack is also unified on &lt;code&gt;7.0&lt;/code&gt;.&lt;/p&gt;
&lt;p&gt;Among the lower-level changes highlighted by Ubuntu, the most relevant ones for general users and operators are:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Crash dump is enabled by default on both desktop and server&lt;/li&gt;
&lt;li&gt;&lt;code&gt;sched_ext&lt;/code&gt; introduces a new scheduler extension model that lets developers implement scheduling policies with eBPF&lt;/li&gt;
&lt;li&gt;The &lt;code&gt;linux-lowlatency&lt;/code&gt; binary package is being retired, replaced by &lt;code&gt;linux-generic&lt;/code&gt; plus the user-space &lt;code&gt;lowlatency-kernel&lt;/code&gt; package for low-latency tuning&lt;/li&gt;
&lt;li&gt;The &lt;code&gt;amd64v3&lt;/code&gt; architecture variant is available as an option, but still opt-in by default&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;If your machine is relatively new, &lt;code&gt;amd64v3&lt;/code&gt; is worth keeping an eye on. The official notes give this enablement method:&lt;/p&gt;
&lt;div class=&#34;highlight&#34;&gt;&lt;div class=&#34;chroma&#34;&gt;
&lt;table class=&#34;lntable&#34;&gt;&lt;tr&gt;&lt;td class=&#34;lntd&#34;&gt;
&lt;pre tabindex=&#34;0&#34; class=&#34;chroma&#34;&gt;&lt;code&gt;&lt;span class=&#34;lnt&#34;&gt;1
&lt;/span&gt;&lt;span class=&#34;lnt&#34;&gt;2
&lt;/span&gt;&lt;span class=&#34;lnt&#34;&gt;3
&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/td&gt;
&lt;td class=&#34;lntd&#34;&gt;
&lt;pre tabindex=&#34;0&#34; class=&#34;chroma&#34;&gt;&lt;code class=&#34;language-bash&#34; data-lang=&#34;bash&#34;&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;nb&#34;&gt;echo&lt;/span&gt; &lt;span class=&#34;s1&#34;&gt;&amp;#39;APT::Architecture-Variants &amp;#34;amd64v3&amp;#34;;&amp;#39;&lt;/span&gt; &lt;span class=&#34;p&#34;&gt;|&lt;/span&gt; sudo tee /etc/apt/apt.conf.d/99enable-amd64v3
&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;sudo apt update
&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;sudo apt upgrade
&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;
&lt;/div&gt;
&lt;/div&gt;&lt;p&gt;That said, it is not enabled automatically. Ubuntu is still prioritizing compatibility first.&lt;/p&gt;
&lt;h2 id=&#34;6-hardware-requirements-and-install-baseline&#34;&gt;6. Hardware requirements and install baseline
&lt;/h2&gt;&lt;p&gt;The official recommended baseline for Ubuntu Desktop 26.04 LTS is:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;A &lt;code&gt;2 GHz&lt;/code&gt; dual-core processor or better&lt;/li&gt;
&lt;li&gt;At least &lt;code&gt;6 GB RAM&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;At least &lt;code&gt;25 GB&lt;/code&gt; of available storage&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;If your machine is on the lighter side, the official recommendation is to consider Ubuntu flavors such as &lt;code&gt;Xubuntu&lt;/code&gt; or &lt;code&gt;Lubuntu&lt;/code&gt;.&lt;br&gt;
The server edition has a lower floor. The documentation notes it can start from &lt;code&gt;1.5 GB RAM&lt;/code&gt; and &lt;code&gt;4 GB&lt;/code&gt; of storage, though the real requirement still depends on your workload.&lt;/p&gt;
&lt;h2 id=&#34;7-who-should-prioritize-upgrading&#34;&gt;7. Who should prioritize upgrading
&lt;/h2&gt;&lt;p&gt;If you are already on &lt;code&gt;24.04 LTS&lt;/code&gt; and want the following, &lt;code&gt;26.04 LTS&lt;/code&gt; is worth a close look:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;A full-generation desktop stack refresh instead of minor patching&lt;/li&gt;
&lt;li&gt;More mature &lt;code&gt;Wayland&lt;/code&gt; and display support&lt;/li&gt;
&lt;li&gt;A more up-to-date default application set&lt;/li&gt;
&lt;li&gt;A newer kernel with a longer support runway&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;But if you still depend heavily on older &lt;code&gt;X11&lt;/code&gt; workflows, special drivers, or custom desktop extensions, or if your production environment is extremely conservative about changes, it is still best to do a compatibility pass before upgrading.&lt;/p&gt;
&lt;h2 id=&#34;8-one-line-summary&#34;&gt;8. One-line summary
&lt;/h2&gt;&lt;p&gt;The value of &lt;code&gt;Ubuntu 26.04 LTS&lt;/code&gt; is not one especially flashy headline feature. It is that Ubuntu has rolled two years of desktop, kernel, application, and compatibility progress into a new LTS baseline all at once.&lt;/p&gt;
&lt;p&gt;If you want the shortest possible judgment, it is this: &lt;strong&gt;this is an Ubuntu LTS release that feels broadly newer and more stable as a whole, rather than one built around a single standout feature.&lt;/strong&gt;&lt;/p&gt;
&lt;h2 id=&#34;related-links&#34;&gt;Related links
&lt;/h2&gt;&lt;ul&gt;
&lt;li&gt;Official release notes: &lt;code&gt;https://documentation.ubuntu.com/release-notes/26.04/&lt;/code&gt;&lt;/li&gt;
&lt;li&gt;Summary for LTS users: &lt;code&gt;https://documentation.ubuntu.com/release-notes/26.04/summary-for-lts-users/&lt;/code&gt;&lt;/li&gt;
&lt;/ul&gt;
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