Ubuntu 25.04 (Plucky Puffin): what's new and when to use it

Ubuntu 25.04, codenamed Plucky Puffin, landed in mid-April 2025 as Canonical’s spring interim release. It is a capable desktop and server base for testing new hardware and developer toolchains. It is not the release you standardize on for production servers that need five years of support.

Canonical’s release announcement and the official release notes are the sources worth bookmarking. This article is the operator view: what changed, and who should install it.

Support window: nine months, not five years

Ubuntu 25.04 is supported for nine months, through January 2026. That is the normal cadence for non-LTS releases.

If you need long-term support, stay on Ubuntu 24.04 LTS, which is supported until at least 2029 for the base LTS period (longer with Ubuntu Pro if you use it). Plucky Puffin is for people who want fresher packages on a test machine, a developer laptop, or a VM you rebuild regularly.

Desktop: GNOME 48 and daily-use polish

The desktop story is GNOME 48 with several quality-of-life additions Canonical highlighted at launch:

• Triple buffering for smoother animation on lower-end GPUs, now upstream in GNOME.
• HDR settings for compatible displays.
• Wellbeing Panel for screen-time awareness.
• Preserve Battery Health mode to reduce wear on laptop batteries that sit plugged in.
• Papers replaces Evince as the default PDF reader.

For a lab machine or a power user’s daily driver who accepts nine-month support, these are meaningful quality improvements. For a reception PC or a file server, they are mostly irrelevant.

Kernel 6.14 and who benefits

Plucky ships Linux 6.14, which brings newer hardware enablement and developer-facing features like sched_ext (scheduling policies via eBPF). Canonical also called out an NTSYNC driver aimed at better performance for Windows games running through Wine and Proton.

Translation for MSPs and IT generalists:

• Good on a developer or gaming-test workstation where you want current GPU and CPU support.
• Neutral to risky on a production server where stability and predictable patching matter more than bleeding-edge drivers.

Developer toolchains and devpacks

Ubuntu 25.04 updates the usual suspects: Python 3.13, Rust 1.84, Go 1.24, LLVM 20, GCC 15 snapshot, OpenJDK 24, and .NET 8/9 support per the release notes.

The newer idea is devpacks: snap bundles that ship curated toolchain sets. Canonical launched a Spring devpack alongside 25.04. If your team builds on Spring Boot and you want current frameworks without hand-rolling repos, a test VM on 25.04 is a sensible place to try it.

Installer and dual-boot improvements

The desktop installer received work that matters in mixed environments:

• Better handling when Windows BitLocker is enabled on the same machine.
• More advanced partitioning options for encrypted installs.

If you have been burned by Ubuntu installers bailing when they detect BitLocker, 25.04 is worth a test pass before you recommend dual-boot to a client.

Server and identity features worth noting

Even if you do not run Plucky on servers in production, the release notes document useful direction:

• Netplan DNS-aware online checks and restored search-domain behavior on cloud images.
• Authd improvements for cloud identity (Entra ID, Google IAM) and Active Directory integration.
• AMD SEV-SNP host support for confidential computing scenarios.
• Updated server packages such as PostgreSQL 17, MySQL 8.4 LTS, and containerd 2.0.

Skim the release notes before you deploy any of these in anger. Interim releases are where Canonical lands features that mature into the next LTS.

When to install 25.04 vs stay on 24.04 LTS

Choose Ubuntu 25.04 when:

• You maintain a lab or dev VM you rebuild or upgrade often.
• You need new hardware support or a current toolchain for a specific project.
• You are evaluating GNOME 48, Papers, or dual-boot/BitLocker installer behavior before the next LTS.

Stay on Ubuntu 24.04 LTS when:

• The system is production (web, database, file, hypervisor guest you do not want to migrate every nine months).
• You need predictable long-term security updates without a full release upgrade in 2026.
• Compliance or client policy expects LTS only.

Consider 24.10 or 25.04 on a desktop only if the user accepts upgrading or reinstalling roughly once a year. Many SMBs are happier on 24.04 LTS with HWE stacks if they need newer kernels on LTS.

Upgrade path reminder

You can upgrade from 24.10 to 25.04 with do-release-upgrade when prompted, but read the release notes for known issues first. Fresh installs are often cleaner on interim releases if the machine has accumulated years of packages.

Download current images from ubuntu.com/download.

Bottom line: Ubuntu 25.04 is a strong interim release for labs, developers, and early adopters who want GNOME 48, Linux 6.14, and current toolchains. Production servers and most business desktops should stay on 24.04 LTS unless you have a specific reason to ride the nine-month train and a plan to migrate before support ends in January 2026.