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Ubuntu 25.04, codenamed "Plucky Puffin", 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 25.04 introduces GNOME 48 with triple buffering for smoother
performance, HDR settings, and new features like a Wellbeing Panel and
Preserve Battery Health mode. A new modern PDF reader, Papers, is now the
default.

The installer now offers a smoother experience when installing alongside
other operating systems, with better BitLocker support, and advanced
partitioning.

Built on the Linux 6.14 kernel, this release brings a new scheduling
system with sched_ext, enhanced Wine/Proton gaming support through the
new NTSYNC driver, and better container tooling via decoupled bpftools and
linux-perf.

Developer experience takes a leap forward with the introduction of devpacks.
These snap bundles deliver the latest Go and Spring ecosystems, alongside
updated toolchains for Python, Rust, .NET, LLVM, OpenJDK, and more.

Ubuntu 25.04 also expands confidential computing to on-premise environments
with AMD SEV-SNP host support, and introduces a new ARM64 Desktop ISO for
next-gen hardware.

Networking and identity management see continued improvements, including
secure time sync with NTS, better Active Directory (AD) integration, cloud
authentication against EntraID and Google identity, and DNS-aware wait-online
logic with Netplan.

The newest Edubuntu, Kubuntu, Lubuntu, Ubuntu Budgie, Ubuntu Cinnamon, Ubuntu
Kylin, Ubuntu MATE, Ubuntu Studio, Ubuntu Unity, 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/plucky-puffin-release-notes/48687#heading--official-flavours

Maintenance updates will be provided for 9 months for all flavours releasing
with 25.04.

To get Ubuntu 25.04
-------------------

In order to download Ubuntu 25.04, visit:

   https://ubuntu.com/download

Users of Ubuntu 24.10 will be offered an automatic upgrade to 25.04 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/plucky-puffin-release-notes

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:

   https://ubuntu.com/support

More Information
----------------

You can learn more about Ubuntu and about this release on our website listed
below:

   https://ubuntu.com

To sign up for future Ubuntu announcements, please subscribe to Ubuntu's very
low volume announcement list at:

   https://lists.ubuntu.com/mailman/listinfo/ubuntu-announce

The Ubuntu team is pleased to announce the Beta release of the Ubuntu
25.04 Desktop, Server, and Cloud products.

Ubuntu 25.04, codenamed "Plucky Puffin", 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, introducing new features and fixing bugs.

This Beta release includes images from not only the Ubuntu Desktop,
Server, and Cloud products, but also the Kubuntu, Lubuntu, Ubuntu
Budgie, UbuntuKylin, Ubuntu MATE, Ubuntu Studio, Ubuntu Unity,
and Xubuntu flavours.

The Beta images are known to be reasonably free of showstopper image
build or installer bugs, while representing a very recent snapshot of
25.04 that should be representative of the features intended to ship
with the final release expected on April 17, 2025.

Ubuntu, Ubuntu Server, Cloud Images:
  Plucky Beta includes updated versions of most of our core set of
  packages, including a current 6.14 kernel, and much more.

  To upgrade to Ubuntu 25.04 Beta from Ubuntu 24.10, follow these
  instructions:

  https://help.ubuntu.com/community/PluckyUpgrades

  The Ubuntu 25.04 Beta images can be downloaded at:

  https://releases.ubuntu.com/25.04/ (Ubuntu and Ubuntu Server on x86)

  This Ubuntu Server image features the next generation Subiquity server
  installer, bringing the comfortable live session and speedy install of
  the Ubuntu Desktop to server users.

  Additional images can be found at the following links:

  https://cloud-images.ubuntu.com/daily/server/plucky/current/ (Cloud Images)
  https://cdimage.ubuntu.com/releases/25.04/beta/ (Non-x86)

  As fixes will be included in new images between now and release, any
  daily cloud image from today or later (i.e. a serial of 20250327 or
  higher) should be considered a Beta image. Bugs found should be filed
  against the appropriate packages or, failing that, the cloud-images
  project in Launchpad.

  The full release notes for Ubuntu 25.04 Beta can be found at:

  https://discourse.ubuntu.com/t/plucky-puffin-release-notes

Kubuntu:
  Kubuntu is the KDE based flavour of Ubuntu. It uses the Plasma desktop
  and includes a wide selection of tools from the KDE project.

  The Beta images can be downloaded at:
  https://cdimage.ubuntu.com/kubuntu/releases/25.04/beta/

Lubuntu:
  Lubuntu is a flavor of Ubuntu which uses the Lightweight Qt Desktop
  Environment (LXQt). The project’s goal is to provide a lightweight
  yet functional Linux distribution based on a rock-solid Ubuntu base.

  The Beta images can be downloaded at:
  https://cdimage.ubuntu.com/lubuntu/releases/25.04/beta/

Ubuntu Budgie:
  Ubuntu Budgie is community developed desktop, integrating Budgie
  Desktop Environment with Ubuntu at its core.

  The Beta images can be downloaded at:
  https://cdimage.ubuntu.com/ubuntu-budgie/releases/25.04/beta/

UbuntuKylin:
  UbuntuKylin is a flavor of Ubuntu that is more suitable for Chinese
  users.

  The Beta images can be downloaded at:
  https://cdimage.ubuntu.com/ubuntukylin/releases/25.04/beta/

Ubuntu MATE:
  Ubuntu MATE is a flavor of Ubuntu featuring the MATE desktop
  environment.

  The Beta images can be downloaded at:
  https://cdimage.ubuntu.com/ubuntu-mate/releases/25.04/beta/

Ubuntu Studio:
  Ubuntu Studio is a flavor of Ubuntu that provides a full range of
  multimedia content creation applications for each key workflow: audio,
  graphics, video, photography and publishing.

  The Beta images can be downloaded at:
  https://cdimage.ubuntu.com/ubuntustudio/releases/25.04/beta/

Ubuntu Unity:
  Ubuntu Unity is a flavor of Ubuntu featuring the Unity7 desktop
  environment.

  The Beta images can be downloaded at:
  https://cdimage.ubuntu.com/ubuntu-unity/releases/25.04/beta/

Xubuntu:
  Xubuntu is a flavor of Ubuntu that comes with Xfce, which is a stable,
  light and configurable desktop environment.

  The Beta images can be downloaded at:
  https://cdimage.ubuntu.com/xubuntu/releases/25.04/beta/

Regular daily images for Ubuntu, and all flavours, can be found at:
  https://cdimage.ubuntu.com

Ubuntu is a full-featured Linux distribution for clients, servers and
clouds, 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 technical support is available from Canonical Limited and
hundreds of other companies around the world. For more information
about support, visit https://ubuntu.com/support

If you would like to help shape Ubuntu, take a look at the list of ways
you can participate at:

https://ubuntu.com/community/participate

Your comments, bug reports, patches and suggestions really help us to
improve this and future releases of Ubuntu. Instructions can be found
at:

https://help.ubuntu.com/community/ReportingBugs

You can find out more about Ubuntu and about this Beta release on our
website, IRC channel and wiki.

To sign up for future Ubuntu announcements, please subscribe to Ubuntu's
very low volume announcement list at:

  https://lists.ubuntu.com/mailman/listinfo/ubuntu-announce

Ubuntu 24.10, codenamed "Oracular Oriole", 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 24.10, codenamed "Oracular Oriole", 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, introducing new features and fixing bugs.

This Beta release includes images from not only the Ubuntu Desktop, Server, and Cloud products, but also the Edubuntu, Kubuntu, Lubuntu, Ubuntu Budgie, Ubuntu Cinnamon, UbuntuKylin, Ubuntu MATE, Ubuntu Studio, Ubuntu Unity, and Xubuntu flavours.

Ubuntu 24.04 LTS, codenamed “Noble Numbat”, 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, together with the community and our partners, to introduce new features and fix bugs.

The Ubuntu team is pleased to announce the Beta release of the Ubuntu 24.04
LTS Desktop, Server, and Cloud products.

24.04 LTS, codenamed "Noble Numbat", 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 very hard
at work through this cycle, introducing new features and fixing bugs.

This Beta release includes images from not only the Ubuntu Desktop, Server,
and Cloud products, but also the Edubuntu, Kubuntu, Lubuntu, Ubuntu Budgie,
Ubuntu Cinnamon, UbuntuKylin, Ubuntu MATE, Ubuntu Studio, Ubuntu Unity and
Xubuntu flavors.

Ubuntu 23.10, codenamed "Mantic Minotaur", 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 23.10, codenamed "Mantic Minotaur", 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, introducing new features and fixing bugs.

This Beta release includes images from not only the Ubuntu Desktop, Server, and
Cloud products, but also the Edubuntu, Kubuntu, Ubuntu Budgie, Ubuntu Cinnamon, Ubuntu Kylin, Ubuntu MATE, Ubuntu Studio, Ubuntu Unity, and Xubuntu flavours.

Ubuntu 23.04, codenamed “Lunar Lobster”, is here.

Ubuntu 23.04, codenamed "Lunar Lobster", 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, introducing new features and fixing bugs.

This Beta release includes images from not only the Ubuntu Desktop, Server, and
Cloud products, but also the Edubuntu, Kubuntu, Lubuntu, Ubuntu Budgie,
Ubuntu Cinnamon, Ubuntu Kylin, Ubuntu MATE, Ubuntu Studio, Ubuntu Unity, and
Xubuntu flavours.

Ubuntu 22.10, codenamed “Kinetic Kudu”, is here.

Ubuntu 22.10, codenamed "Kinetic Kudu", 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, introducing new features
and fixing bugs.

This Beta release includes images from not only the Ubuntu Desktop,
Server, and Cloud products, but also the Kubuntu, Lubuntu, Ubuntu
Budgie, Ubuntu MATE, Ubuntu Studio, Ubuntu Unity, and Xubuntu flavours.

The Ubuntu team is very pleased to announce our ninth long-term support release, Ubuntu 22.04 LTS for Desktop, Server, and Cloud.

Ubuntu 22.04, codenamed "Jammy Jellyfish", 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, introducing new features and fixing bugs.

This Beta release includes images from not only the Ubuntu Desktop,
Server, and Cloud products, but also the Kubuntu, Lubuntu, Ubuntu
Budgie, UbuntuKylin, Ubuntu MATE, Ubuntu Studio, and Xubuntu flavours.

Codenamed “Impish Indri”, 21.10 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 21.10, codenamed "Impish Indri", 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, introducing new features and fixing bugs.

This Beta release includes images from not only the Ubuntu Desktop,
Server, and Cloud products, but also the Kubuntu, Lubuntu, Ubuntu
Budgie, UbuntuKylin, Ubuntu MATE, Ubuntu Studio, and Xubuntu flavours.

Codenamed "Hirsute Hippo", 21.04 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, introducing new features and fixing bugs.

Codenamed "Groovy Gorilla", 20.10 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, introducing new features and fixing bugs.

The Ubuntu team is very pleased to announce our eighth long-term support release, Ubuntu 20.04 LTS for Desktop, Server, and Cloud.

The Ubuntu team is pleased to announce the Beta release of the Ubuntu
20.04 LTS Desktop, Server, and Cloud products.

The Ubuntu team is pleased to announce the final beta release of the
Ubuntu 18.04 LTS Desktop, Server, and Cloud products.

Codenamed "Utopic Unicorn", 14.10 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, introducing new features and fixing bugs.

Under the hood, there have been updates to many core packages, including
a new 3.16-based kernel, a new AppArmor with fine-grained socket control,
and more.

Ubuntu Desktop has seen incremental improvements, with newer versions of
GTK and Qt, updates to major packages like Firefox and LibreOffice, and
improvements to Unity, including improved High-DPI display support.

Ubuntu Server 14.10 includes the Juno release of OpenStack, alongside
deployment and management tools that save devops teams time when
deploying distributed applications - whether on private clouds, public
clouds, x86 or ARM servers, or on developer laptops. Several key server
technologies, from MAAS to Ceph, have been updated to new upstream
versions with a variety of new features.

The newest Kubuntu, Xubuntu, Lubuntu, Ubuntu GNOME, Ubuntu Kylin, and
Ubuntu Studio are also being released today. More details can be found
for these at their individual release notes:

   https://wiki.ubuntu.com/UtopicUnicorn/ReleaseNotes#Official_flavours

Maintenance updates will be provided for 9 months for all flavours
releasing with 14.10.

The Ubuntu team is very pleased to announce the release of Ubuntu 13.04 for Desktop, Server, Cloud, and Core products.

Codenamed "Raring Ringtail", 13.04 continues Ubuntu's proud tradition of integrating the latest and greatest open source technologies into a high-quality, easy-to-use Linux distribution. This release cycle has seen a significant push toward daily quality, which has allowed most developers and users to participate more actively throughout the cycle, and we feel this also shows in the final quality of this release.

Along with performance improvements to Unity, updates to common desktop packages, and updated core and toolchain components, Ubuntu 13.04 also includes the new Friends service, to consolidate all social networking accounts via Ubuntu Online Accounts. Also included is a tech preview of Upstart's new user session feature.

Ubuntu Server 13.04 includes the Grizzly release of OpenStack, alongside deployment and management tools that save devops teams time when deploying distributed applications - whether on private clouds, public clouds, x86 or ARM servers, or on developer laptops. Several key server technologies, from MAAS to Ceph, have been updated to new upstream versions with a variety of new features, and a preview of the new Go rewrite of Juju is available in the backports repository.

Read more about the new features of Ubuntu 13.04 in the following press releases:

   http://ubunt.eu/1304Server
   http://ubunt.eu/1304Client

Maintenance updates will be provided for Ubuntu 13.04 for 9 months, through January 2014.

Thanks to the efforts of the global translation community, Ubuntu is now available in 42 languages. For a list of available languages and detailed translation statistics for these and other languages, see:

   http://people.canonical.com/~dpm/stats/ubuntu-13.04-translation-stats.html

The newest Kubuntu 13.04, Edubuntu 13.04, Xubuntu 13.04, Lubuntu 13.04 and Ubuntu Studio 13.04 are also being released today. More details can be found in their announcements:

   Kubuntu: http://kubuntu.org/news/13.04-release
   Xubuntu: http://xubuntu.org/news/13-04-release
   Edubuntu: http://edubuntu.org/news/13.04-release
   Lubuntu: http://wiki.ubuntu.com/Lubuntu/Announcement/13.04
   Ubuntu Studio: http://ubuntustudio.org/?p=726

This release cycle, we welcome two new flavours to the Ubuntu archive, Ubuntu GNOME and UbuntuKylin. For more information about each, see their wiki pages, and welcome them to the family:

   Ubuntu GNOME: https://wiki.ubuntu.com/UbuntuGNOME
   UbuntuKylin: https://wiki.ubuntu.com/UbuntuKylin

 “Doing is a quantum leap from imagining. Thinking about swimming
   isn't much like actually getting in the water. Actually getting
   in the water can take your breath away. The defense force inside
   of us wants us to be cautious, to stay away from anything as
   intense as a new kind of action. Its job is to protect us, and
   it categorically avoids anything resembling danger. But it's
   often wrong. Anything worth doing is worth doing too soon.”
       - Barbara Sher

With this release, the development teams decided to dive in and focus on introducing some of the new innovations we’ve been imagining for the upcoming LTS cycle, and so are very pleased to be able to announce the release of Ubuntu 12.10 for Desktop, Server, Cloud, and Core products.

Codenamed "Quantal Quetzal", 12.10 continues Ubuntu's proud tradition of integrating the latest and greatest open source technologies into a high-quality, easy-to-use Linux distribution.

Ubuntu 12.10 introduces innovations that bring together desktop and cloud-based experiences, representing the next stage in the transition to a multi-device, cloud-based world. New Previews give large, clear previews of content as it appears in the Dash search results, giving users a quick way to get more information to help find what they are looking for. The new Web Apps feature makes frequently used web applications available through the desktop. A new remote log-in option now lets Ubuntu 12.10 be used as a thin client by businesses that want to virtualise their desktop applications and deliver them to users over the network.

Ubuntu Server 12.10 includes the Folsom release of OpenStack, alongside deployment and management tools that save devops teams time when deploying distributed applications - whether on private clouds, public clouds, x86 or ARM servers, or on developer laptops. Cloud builders now have access to two major new components: Cinder, for block storage and Quantum, a virtual networking API. Ubuntu’s Metal-as-a-Service (MAAS) bare-metal provisioning tool has been updated and now supports Calxeda hyperscale hardware based on ARM, so users can now quickly deploy services directly to bare-metal clusters, whether they’re built on legacy hardware, new Ivy Bridge-based machines or the new ARM-based hardware.

The Ubuntu desktop images have been consolidated to a single improved image with a size of 800MB. This desktop image folds in the advanced partitioning options from the alternate installer (removing the need for alternate and DVD images) and introduces support for UEFI Secure Boot technology. The Ubuntu Server image remains as a CD sized image, but installs the base system from a squashfs image for improved performance.

Read more about the new features of Ubuntu 12.10 in the following press releases:

   http://www.canonical.com/content/ubuntu-server-1210-all-you-need-cloud
   http://www.canonical.com/content/ubuntu-1210-breaks-down-barrier-between-pc-and-web

Maintenance updates will be provided for Ubuntu 12.10 for 18 months, through April 2014.

Thanks to the efforts of the global translation community, Ubuntu is now available in 42 languages. For a list of available languages and detailed translation statistics for these and other languages, see:

    http://people.canonical.com/~dpm/stats/ubuntu-12.10-translation-stats.html

The newest Kubuntu 12.10, Edubuntu 12.10, Xubuntu 12.10, Lubuntu 12.10 and Ubuntu Studio 12.10 are also being released today. More details can be found in their announcements:

   Kubuntu: http://kubuntu.org/news/12.10-release
   Xubuntu: http://xubuntu.org/news/12-10-release
   Edubuntu: http://edubuntu.org/news/12.10-release
   Lubuntu: http://wiki.ubuntu.com/Lubuntu/Announcement/12.10
   Ubuntu Studio: https://wiki.ubuntu.com/QuantalQuetzal/ReleaseNotes/UbuntuStudio

"Imagination is as vital to any advance in science as learning and precision are essential for starting points." - Percival Lowell

The Ubuntu team is very pleased to announce the release of Ubuntu 12.04 LTS (Long-Term Support) for Desktop, Server, Cloud, and Core products.

Codenamed "Precise Pangolin", 12.04 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, introducing a few new features and improving quality control.

To be a bit more precise about what we're releasing today...
There are 54 product images and 2 cloud images being shipped with this 12.04 LTS release, with translations available in 41 languages. The Ubuntu project's 12.04 archive currently has 39,226 binary packages in it, built from 19,179 source packages, so lots of good starting points for your imagination!

For PC users, Ubuntu 12.04 supports laptops, desktops, and netbooks with a unified look and feel based on an updated version of the desktop shell called "Unity", which introduces "Head-Up Display" search capabilities. Finding and installing software using the Ubuntu Software Centre is now easier thanks to improvements in speed, search and usability.

Ubuntu Server 12.04 has made it much easier to provision, deploy, host, manage, and orchestrate enterprise data centre infrastructure services with the introduction of new technologies such as "Metal as a Service" (MAAS), the Juju Charm Store, and the latest OpenStack version, codenamed Essex. These technologies further position Ubuntu Server
as the best OS for scale-out computing.

Read more about the new features of Ubuntu 12.04 in the following press releases:

   http://www.canonical.com/content/ubuntu-server-1204-lts-certified-available-and-ready-hyperscale-world
   http://www.canonical.com/content/ubuntu-1204-lts-aims-conquer-enterprise-desktop

Long term support maintenance updates will be provided for Ubuntu 12.04 for five years, through April 2017. For those working on the ARM architecture, an 18 month supported release is also provided for the ARM server using the ARM Hard Float (HF) architecture.

Thanks to the efforts of the global translation community, Ubuntu is now available in 41 languages. For a list of available languages and detailed translation statistics for these and other languages, see:

   http://people.canonical.com/~dpm/stats/ubuntu-12.04-translation-stats.html

The newest Kubuntu 12.04 (LTS), Edubuntu 12.04 (LTS), Xubuntu 12.04 (LTS), Mythbuntu 12.04, Lubuntu 12.04 and Ubuntu Studio 12.04 are also being released today. More details can be found in their announcements:

   Kubuntu: http://kubuntu.org/news/12.04-release
   Xubuntu: http://xubuntu.org/news/12-04-release
   Edubuntu: http://edubuntu.org/news/12.04-release
   Mythbuntu: http://mythbuntu.org/12.04/release
   Lubuntu: https://wiki.ubuntu.com/Lubuntu/Announcement/12.04
   Ubuntu Studio: https://wiki.ubuntu.com/UbuntuStudio/12.04release_notes