Ubuntu 25.10, codenamed “Questing Quokka”, is here. This release continues Ubuntu’s proud tradition of integrating the latest and greatest open-source technologies into a high-quality, easy-to-use Linux distribution. The team has been hard at work through this cycle, partnering with the community and our partners, to introduce new features and fix bugs.
Ubuntu 25.10 introduces GNOME 49 with media and power controls on the lock screen, HDR brightness settings, and enhanced accessibility features in line with the European Accessibility Act. New apps include Loupe, a modern image viewer, and Ptyxis, a lightweight terminal emulator.
Built on the Linux 6.17 kernel, this release brings nested virtualization on Arm, early Intel TDX host support for confidential computing, and enhanced support for TPM-backed full disk encryption with passphrase support, recovery key management and better integration with firmware updates. Network Time Security (NTS) is enabled by default for more secure time synchronization.
Developer experience advances with updated toolchains for Python 3.13.7 and availability of 3.14 RC3, GCC 15, Rust 1.85, Go 1.25, OpenJDK 25, and previews of .NET 10 and Zig.
Ubuntu 25.10 also debuts Rust-based implementations of sudo and coreutils for improved memory safety, and adopts the new RVA23 profile as the baseline for RISC-V, paving the way to Ubuntu 26.04 LTS.
The newest Edubuntu, Kubuntu, Lubuntu, Ubuntu Budgie, Ubuntu Cinnamon, Ubuntu Kylin, Ubuntu MATE, Ubuntu Studio, and Xubuntu are also being released today. More details can be found for these at their individual release notes under the Official Flavours section:
https://discourse.ubuntu.com/t/questing-quokka-release-notes/59220#heading–official-flavours
Maintenance updates will be provided for 9 months for all flavours releasing with 25.10.
To get Ubuntu 25.10
In order to download Ubuntu 25.10, visit:
Users of Ubuntu 25.04 will be offered an automatic upgrade to 25.10 if they have selected to be notified of all releases rather than just LTS upgrades. For further information about upgrading, see:
https://ubuntu.com/download/desktop/upgrade
As always, upgrades to the latest version of Ubuntu are entirely free of charge.
We recommend that all users read the release notes, which document caveats, workarounds for known issues, as well as more in-depth notes on the release itself. They are available at:
https://discourse.ubuntu.com/t/questing-quokka-release-notes/59220
Find out what’s new in this release with a graphical overview:
https://ubuntu.com/desktop
https://ubuntu.com/desktop/features
If you have a question, or if you think you may have found a bug but aren’t sure, you can try asking in any of the following places:
https://matrix.to/#/#support:ubuntu.com
https://discourse.ubuntu.com/support
https://lists.ubuntu.com/mailman/listinfo/ubuntu-users
Help Shape Ubuntu
If you would like to help shape Ubuntu, take a look at the list of ways you can participate at:
https://ubuntu.com/community/contribute
About Ubuntu
Ubuntu is a full-featured Linux distribution for desktops, laptops, IoT, cloud, and servers, with a fast and easy installation and regular releases. A tightly-integrated selection of excellent applications is included, and an incredible variety of add-on software is just a few clicks away.
Professional services including support are available from Canonical and hundreds of other companies around the world. For more information about support, visit:
More Information
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Originally posted to the ubuntu-announce mailing list on Thu Oct 9 09:46:52 UTC 2025 by Utkarsh Gupta, on behalf of the Ubuntu Release Team.
