Canonical has released Ubuntu 25.10, codenamed Questing Quokka. It is an interim release with support until July 2026. This version focuses on cleaner code, simpler tools, and a stronger system foundation. All official Ubuntu flavors have also received updates.

What’s New in Ubuntu 25.10

Ubuntu 25.10 updates core software and replaces several long-used components with newer tools.

Main Changes

• Linux Kernel 6.17 improves hardware support and system performance.
• Rust-based system tools replace some GNU utilities, improving safety and reliability.
• Dracut replaces initramfs-tools for building the boot process.
• GNOME 49 is now the desktop environment, running only on Wayland.
• Loupe is the new image viewer, replacing Eye of GNOME.
• Ptyxis is the new terminal, designed for modern workflows.
• Chrony replaces systemd-timesyncd for time synchronization, with Network Time Security support.
• Ubuntu Insights adds a simple way to share anonymous system data.
• Mesa 25.2 updates graphics drivers for Intel, AMD, and NVIDIA GPUs.
• RISC-V support now targets the newer RVA23 profile.

These updates make Ubuntu 25.10 faster, more secure, and easier to maintain.

Updates in Ubuntu Flavors

Each Ubuntu flavor benefits from the same base upgrades. They also include updates to their desktop environments and applications.

Flavor	Changes in 25.10
Kubuntu	Uses KDE Plasma 6.4.5 with KDE Frameworks 6.17 and KDE Gear 25.08.1. Wayland is the default. Improves performance and display handling.
Xubuntu	Updates the Xfce desktop. Gains better hardware support and lower resource usage. Ideal for older systems.
Lubuntu	Keeps the LXQt desktop simple and light. Includes kernel and software updates.
Ubuntu Studio	Ships with newer versions of Audacity, Kdenlive, GIMP, Krita, and other creative tools. Adds a new optional dock layout. Runs on KDE Plasma 6.4.5.
Ubuntu Budgie	Includes visual fixes and updated applications. Built on the same core improvements as the main release.
Ubuntu Cinnamon	Refines the Cinnamon desktop with smoother performance and updated artwork.
Edubuntu	Updates educational tools and improves classroom usability.

Note: Ubuntu MATE did not meet the release schedule and may not have an official 25.10 release.

All flavors share the same support period until July 2026.

Upgrade and Installation Notes

• Upgrade path: Users on Ubuntu 25.04 can upgrade directly.
• Clean install recommended: A fresh install applies new defaults like Dracut more effectively.
• Support window: Ubuntu 25.10 will receive updates for nine months.
• X11 users: GNOME now runs only on Wayland. Use Kubuntu or Xubuntu if X11 is required.
• Testing: Try 25.10 in a virtual machine before deploying it widely.

Summary

Ubuntu 25.10 is a stable and modern update. It continues Ubuntu’s move toward safer, memory-protected software and streamlined system tools.

It’s a good choice for users who want new features and don’t mind short-term support. Those seeking long-term stability should stay on Ubuntu 24.04 LTS or wait for Ubuntu 26.04 LTS.

Sources: Ubuntu Wiki • 9to5Linux • OMG! Ubuntu • Phoronix