{"id":49801,"date":"2025-10-09T14:54:59","date_gmt":"2025-10-09T14:54:59","guid":{"rendered":"https:\/\/ubuntuhandbook.org\/?p=49801"},"modified":"2025-10-09T14:54:59","modified_gmt":"2025-10-09T14:54:59","slug":"ubuntu-25-10-officially-released-with-kernel-6-17-gnome-49","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2025\/10\/ubuntu-25-10-officially-released-with-kernel-6-17-gnome-49\/","title":{"rendered":"Ubuntu 25.10 Officially Released with Kernel 6.17 & GNOME 49"},"content":{"rendered":"

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Ubuntu 25.10, code-name Questing Quokka, was officially released today!<\/p>\n

This is a new short term release with 9 months support until July 2026<\/strong>. New features include the latest Linux Kernel 6.17<\/strong>, GNOME Desktop 49<\/strong>, and more.
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Thanks to Kernel 6.17, the new release features Attack Vector Controls, making easy to manage CPU vulnerability mitigations. It also added AMD SmartMux support for hybrid laptops, nested virtualization on Arm, and better support for AMD processors with mix of classic and dense cores.<\/p>\n

Other Kernel changes include Raspberry Pi RP1 PCI device support, touch Bars support on x86 MacBook Pros, new drivers for Lenovo Legion Go S gaming handheld, and more. See more in kernelnewbies<\/a>.<\/p>\n

For Ubuntu Desktop, the installer improved TPM-Backed encryption<\/strong> with passphrase support and regeneration of the recovery key. And, Software Updater window will no longer pop up unprompted. Instead, it shows an icon in system tray, reminding that updates are available.<\/p>\n

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system tray icon reminding updates are available<\/p><\/div>\n

Due to upstream (meaning GNOME 49), “Ubuntu on Xorg” session is no longer available<\/b>, though the GDM login screen still supports loading other Xorg desktop sessions, e.g., XFCE, MATE, and Cinnamon.<\/p>\n

Ubuntu 25.10 introduced 2 new default apps. It replaced Gnome Terminal with new default Ptyxis container-focused terminal emulator<\/b>, and replaced Eye of Gnome (EOG) with touch-friendly Loupe image viewer<\/b> which is written in Rust and powered by the Glycin library, which also handles the desktop wallpaper.<\/p>\n

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New default Ptyxis terminal emulator<\/p><\/div>\n

Thanks to Gnome 49, it also added support changing the display brightness in the Quick Settings when HDR is enabled. And, these new HDR brightness controls<\/strong> support external displays, and allow multiple displays to be adjusted at the same time.<\/p>\n

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per-monitor brightness control<\/p><\/div>\n

Other desktop changes include:<\/p>\n