Ubuntu 25.10 Questing Quokka stable ISO

Utkarsh Gupta has announced the release of Ubuntu 25.10, codenamed “Questing Quokka.” The latest version of the popular distribution comes with GNOME 49 and the Linux 6.17 Kernel:

“Ubuntu 25.10, codenamed ' Questing Quokka ', is here. Ubuntu 25.10 introduces GNOME 49 with media and power controls on the lock screen, HDR brightness settings, and improved accessibility features in line with the European Accessibility Act.”

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“New applications include Loupe, a modern image viewer, and Ptyxis, a lightweight terminal emulator. The new release uses the Linux 6.17 Kernel, and offers nested virtualization on Arm, early Intel TDX host support for confidential computing, and improved support for full disk encryption with TPM with password support, recovery key management, and better integration with firmware updates.”

“Network Time Security (NTS) is enabled by default for more secure time synchronization. The developer experience is improved with tooling updates for Python 3.13.7 and the availability of 3.14 RC3, GCC 15, Rust 1.85, Go 1.25, OpenJDK 25, and .NET previews.” 10.

Ubuntu 25.10 also brings Rust-based sudo and coreutils implementations for improved memory safety and adopts the new RVA23 profile as the basis for RISC-V, paving the way for Ubuntu 26.04 LTS.

Read the new version announcement and release notes for further information.

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