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In London, Canonical founder and CEO Mark Shuttleworth argued that Ubuntu 26.04, Ubuntu Linux, is the operating system for the "AI agentic era." Well, that's easy to claim, but what does Canonical have that can back up that claim?
In his keynote for Ubuntu Summit 26.04, Shuttleworth framed open source as the "raw material" of the next wave of technological disruption. Specifically, he stated that the pace of AI-driven software innovation has outstripped traditional packaging and release processes. For AI, Linux users must move beyond Advanced Packaging Tool (APT) and Red Hat Package Manager (RPM) to signed, auto-updated, policy-driven snaps. Of course, snaps have long been Canonical's answer to delivering upstream software, but now AI requires updates at internet speed without sacrificing auditability or control, and that means snaps.
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Shuttleworth cited fresh telemetry from developer Alan Pope's Snap Store dashboard that shows dozens of snap updates landing in a single morning, across architectures from x86 and Arm to RISC-V and Power, all coming from the same tested bits. He positioned snaps, with confinement, progressive rollouts, channels, and enterprise gating, as the "single best, safest way to deliver bits to any Linux distro on the planet."
While Shuttleworth defended snaps in general, Ubuntu VP of Engineering Jon Seager drilled into new user-facing behavior: fine-grained permission prompts for snapped apps, similar to those in Android and iOS. For example, when a confined app first tries to access the camera, the desktop can now surface a prompt asking the user to grant or deny access, thanks to new plumbing from the kernel and AppArmor up through snapd and GNOME's display manager.
The other reason Ubuntu is the operating system you want for AI, according to Shuttleworth, is security. With this Ubuntu release, everything can run in a layered toolbox. Everything? Everything. It's not just apps, but AI agents and third-party software development kits (SDKs) as well. On Ubuntu today, that approach spans snap confinement, Docker/OCI containers, LXD system containers, traditional virtual machines (VMs) via Multipass, and a new generation of microVMs that blur the line between containers and virtualization.
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This mix is essential, Shuttleworth claims, for "agentic engineering," where organizations may want to run thousands of agents, each believing it has a full Linux system while actually being tightly constrained for density and safety. LXD-based system containers provide the illusion of full machines for agents, while microVMs, delivered via an "Open Shell" snap that spins up hardened, per-agent environments for tools like Claude or Copilot, add hardware-enforced isolation when a kernel boundary is not enough.
Also, one concrete new piece is Workshop. This is a tool Canonical built on LXD to create "agentic workspaces." Worskop is meant to solve a long-standing pain point: combining sensitive developer credentials with untrusted or semi-trusted code.
Developers or teams can commit a Workshop definition to a repo. Thus, onboarding a new human or agent becomes "git clone, workshop launch." With these, the company claims, you can launch sandboxed development environments and agentic workflows that are composable and repeatable with a single command, while keeping your host system isolated.
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Workshop works by booting a system container and then selectively binding in high-value secrets and resources, such as SSH keys for signed commits, access to specific datasets, and routes to remote Git servers, without dumping a developer's entire laptop environment into the sandbox. Canonical is already working with ISVs to ship signed SDKs into a dedicated Workshop store so that closed-source SDKs and agents can run alongside Ubuntu and Debian packages in a controlled environment.
Seager picked up where Shuttleworth left off, arguing that Canonical has no choice but to be "in the thick of" AI and agents if open source is to have any say in how these systems evolve. Rather than racing to bolt an LLM gimmick into the shell, Seager outlined a two-track strategy: implicit AI features that quietly improve existing capabilities, and explicit AI features that Canonical will roll out more cautiously.
On the implicit side, he pointed to accessibility and media as near-term opportunities: local speech-to-text, better camera autofocus, and microphone enhancement powered by small on-device models that can run even on CPU-only laptops. On the explicit side, he previewed a goal for Ubuntu 26.10: a desktop where "you can press a button and talk into any field you could previously type in," backed by models like Whisper and plumbed into every text entry surface on the system.
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Seager was explicit that AI-driven accessibility is a core design target, not an afterthought. He said today's Linux screen readers "bluntly suck," and argued that feeding a framebuffer or camera capture into an LLM could radically improve both the description of on-screen content and the presentation of possible actions to visually impaired users.
Beyond accessibility, Seager teased "new ways of interacting with your machine" that lean on Ubuntu's existing confinement story: In an agentic desktop, each tool an agent can call would be packaged as its own confined snap, giving fine-grained control over what the agent can do on the user's behalf. He promised something concrete to "play with in the next six months," describing it as a way for non-experts to obtain "20 years of Linux desktop hacker" capability via agents, without needing the hacker background themselves.
Additionally, on the AI and HPC front, Seager stressed Canonical's work with Nvidia and AMD to make GPU enablement boring ... in a good way. Ubuntu users can now "just apt install CUDA and apt install ROCm," with Canonical and the vendors collaborating to ensure that the drivers and stacks are properly integrated and tested on 26.04.
Seager added that his own AMD GPU "has never sung as nicely as it does on 26.04" and that, for the first time, he "didn't have to endure any pain" to make it happen. Combined with Ubuntu's work on architecture variants, shipping entire archives compiled for specific instruction-set levels, such as amd64v3, Canonical wants to ensure that the expensive acceleration hardware enterprises are buying is fully supported by Ubuntu Linux and its bundled tools.
Both Shuttleworth and Seager ended by promising to keep Ubuntu's historic promise alive, shipping "precisely the same bits" to hedge-fund quants and kids in the suburbs of Kolkata, in a world where AI usage is metered in expensive tokens. Shuttleworth warned that tying productivity and even basic understanding of code to proprietary, cloud-hosted models risks locking out the "poorest members of our digital society" unless open-weight models and open tooling remain a primary focus.
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Seager, for his part, rejected both "moral" disengagement from AI and vanity metrics like "who can spend the most tokens." He argued that open-source-savvy players like Canonical have to stay engaged, help the community work through a messy period of AI-generated "slop contributions," and guide the eventual convergence on a new generation of high-quality open-source components, now with agents and AI part of the toolkit.
Seager also highlighted how Ubuntu 26.04 incorporates memory safety in the base system. He highlighted three pillars: Rust-based rewrites of critical utilities, a new Rust-based cryptographic foundation called Universal Public Key Infrastructure (UPKI), and a unified, Rust-based time-sync stack.
On 26.04 Long Term Support (LTS), coreutils such as mv, cp, rm, and ls are now backed by the Rust-based uutils project, following two Canonical-funded security audits. Sudo has been replaced by sudo-rs, a Rust implementation that drops long-accumulated "ill-informed" features and tightens memory safety at the privilege boundary on every Ubuntu machine. Next, Canonical plans to swap bzip2 for a Rust implementation that Seager says is "up to 50% more efficient," with Zlib and Zstandard targeted by 28.04 -- changes he argued could translate into significant global energy savings given how widely these codecs are used.
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The point of UPKI is to bring browser-grade PKI hygiene to the Linux command line. Today, Seager noted, curl happily ignores certificate revocation lists, and command-line TLS often breaks on misconfigured certificate chains that browsers silently tolerate. UPKI will centralize revocation, intermediate preloading, and eventually post-quantum algorithms such as Merkle-tree-based schemes, with glue code being written for OpenSSL, GnuTLS, curl, and others so that tools across the stack can consume the same modern PKI data.
On the other side, a new NTP-rs utility will deliver NTP, NTS, and PTP "in a single binary, single configuration," aiming to radically simplify precision time configuration on Linux.
Seager described 26.04 as the first LTS delivered under a new engineering "manifesto" that included a monthly shipping discipline enforced by an all-new release pipeline built with Go and Temporal. The team, he said, hit every monthly target, which in turn made the LTS release smoother.
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He added that Canonical has also been quietly rebuilding its community and communications muscle. Seager claimed that Canonical has added more core developers in the last six months than in the previous three years and has deliberately increased its blogging, Mastodon posts, podcasts, and community appearances. The result, Seager joked, is that "for anybody who doesn't like Ubuntu, it's a bit of a rough time ... you literally can't get away from us on the internet."
It also means Ubuntu can keep up with AI's incredible pace.
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