Ubuntu 15.04 (vivid vervet) new features You can download ISOs from: http://releases.ubuntu.com/15.04/ (Ubuntu Desktop and Server) http://cloud-images.ubuntu.com/releases/15.04/release/ (Ubuntu Cloud Server) http://cdimage.ubuntu.com/netboot/15.04/ (Ubuntu Netboot) http://cdimage.ubuntu.com/ubuntu-core/releases/15.04/release/ (Ubuntu Core) http://cdimage.ubuntu.com/kubuntu/releases/15.04/release/ (Kubuntu) http://cdimage.ubuntu.com/lubuntu/releases/15.04/release/ (Lubuntu) http://cdimage.ubuntu.com/ubuntustudio/releases/15.04/release/ (Ubuntu Studio) http://cdimage.ubuntu.com/ubuntu-gnome/releases/15.04/release/ (Ubuntu GNOME) http://cdimage.ubuntu.com/ubuntukylin/releases/15.04/release/ (UbuntuKylin) http://cdimage.ubuntu.com/ubuntu-mate/releases/15.04/release/ (Ubuntu MATE) http://cdimage.ubuntu.com/xubuntu/releases/15.04/release/ (Xubuntu)

1. Ubuntu 15.04 (Vivid Vervet)
New Features

2. Ubuntu 15.04 (Vivid Vervet)
Download Ubuntu 15.04 (Vivid Vervet):
Images can be downloaded from a location near you.
You can download ISOs from:
http://releases.ubuntu.com/15.04/ (Ubuntu Desktop and Server)
http://cloud-images.ubuntu.com/releases/15.04/release/ (Ubuntu Cloud Server)
http://cdimage.ubuntu.com/netboot/15.04/ (Ubuntu Netboot)
http://cdimage.ubuntu.com/ubuntu-core/releases/15.04/release/ (Ubuntu Core)
http://cdimage.ubuntu.com/kubuntu/releases/15.04/release/ (Kubuntu)
http://cdimage.ubuntu.com/lubuntu/releases/15.04/release/ (Lubuntu)
http://cdimage.ubuntu.com/ubuntustudio/releases/15.04/release/ (Ubuntu
Studio)
http://cdimage.ubuntu.com/ubuntu-gnome/releases/15.04/release/ (Ubuntu
GNOME)
http://cdimage.ubuntu.com/ubuntukylin/releases/15.04/release/ (UbuntuKylin)
http://cdimage.ubuntu.com/ubuntu-mate/releases/15.04/release/ (Ubuntu
MATE)
http://cdimage.ubuntu.com/xubuntu/releases/15.04/release/ (Xubuntu)

3. Updated Packages
As with every new release, packages--applications and
software of all kinds--are being updated at a rapid pace. Many
of these packages came from an automatic sync from
Debian's unstable branch; others have been explicitly pulled
in for Ubuntu 15.04.

4. Linux kernel 3.19
The Ubuntu 15.04 release delivers a v3.19 based
kernel.

5. Ubuntu 15.04 Desktop
Unity:
Unity has had many bugs fixed and new features added.
Locally integrated menus are now available for unfocussed
windows. There have been a number of usability
improvements to the dash.

6. Ubuntu 15.04 Desktop
General:
Firefox is updated to version 36 and Chromium is updated
to version 41.
Most of the Gnome platform is now based on version 3.14.
Pulseaudio is updated to version 6 paving the way for a
move to Bluez5 next release.

7. Ubuntu 15.04 Desktop
LibreOffice:
LibreOffice 4.4 brings a lot of improvements including
improved change tracking in Writer, improve mail merge
performance, improved shapes which can now have fully
formatted content with tables etc, more statistics functions in
Calc, improved OpenGL support for slide transitions in
Impress and Draw, password protected documents in
Impress. Support for digital signed PDF exports has been
added, as has support for connecting to Sharepoint and
OneDrive. Many new multimedia formats are supported
including .ra, .rm, .dv, .ac3, .opus, .asf, and .m4a.

8. Ubuntu 15.04 Desktop
Ubuntu Make:
Ubuntu Make continues to add support for new platforms, bringing the total to 15
(from 1 last release). This includes highlights such as:
➔ Android NDK support and bumped Android Studio to latest version
➔ Other new IDEs: IDEA (ultimate and community editions), pycharm
(professional, educational and community editions), webstorm, rubymine,
phpstorm and eclipse
➔ Golang compiler support
➔ Firefox developer edition
➔ Dartlang editor
➔ Stencyl game development platform
➔ Numerous usability improvements and accessibility (ppa, doc)

9. Ubuntu 15.04 Server
Known issues:
As is to be expected, with any release, there are some significant known
bugs that users may run into with this release of Ubuntu 15.04. The ones
we know about at this point (and some of the workarounds), are
documented here so you don't need to spend time reporting these bugs
again:
Boot, installation and post-install:
➔ The installer currently has a bug where after the installation is
complete, the installation medium will eject, but you will be unable to
press ENTER to reboot. Powering off and back on should boot you into
your installed system. This will be fixed before final release and is being
tracked in bug #1436715

10. Ubuntu 15.04 Server
Boot, installation and post-install:
➔ The OEM installer has a bug wherein the "oem" user isn't correctly
removed when preparing the system for shipment to the end user. Due
to this bug, it is highly recommended that the beta images are *not*
used for OEM installs, though we generally don't recommend using
anything but release images for OEM installs anyway. This is being
tracked in bug #1436937
➔ The amd64 (Intel x86 64bit) images specifically targeted at Apple
hardware (amd64+mac) are no longer produced. Most Apple
computers are now capable of booting the amd64 image directly using
the EFI (not legacy) boot method so long as their firmware is up to
date. If for some reason your hardware doesn't boot properly using the
amd64 image, make sure you don't have a pending EFI update and if
that still doesn't work, then patch the 64-bit ISO using the software in
bug #1298894 (tested working on Macbook 2,1). Alternatively, simply
use the i386 (32bit) image instead.

11. Ubuntu 15.04 Server
Boot, installation and post-install:
➔ Due to changes in syslinux, it is not currently possible to use usb-
creator from 14.04 and earlier releases to write USB images for 14.10;
we believe that it is also not possible to use usb-creator from a 14.10
system to write USB images for earlier releases. For now the
workaround is to use a matching release of Ubuntu to write the images,
but we intend to issue updates soon to work around this incompatibility.
1325801
➔ On OEM installation the temporary OEM user is not removed after the
end user setup (LP:1436937), the 2 accounts co-exist and OEM is
selected by default on first login. On UEFI systems, at the end of the
end user setup, the graphical environment fails to come up due to
crashes of either Xorg or unity-settings-daemon LP:1436861. Upon
reboot the system works fine. These issues will be fixed before final
release.

12. Ubuntu 15.04 (Vivid Vervet)
Official flavours:
The release notes for the official flavours can be found at the following links:
Kubuntu https://wiki.ubuntu.com/VividVervet/ReleaseNotes/Kubuntu
Lubuntu https://wiki.ubuntu.com/VividVervet/ReleaseNotes/Lubuntu
Ubuntu GNOME
https://wiki.ubuntu.com/VividVervet/ReleaseNotes/UbuntuGNOME
Ubuntu Kylin https://wiki.ubuntu.com/VividVervet/ReleaseNotes/UbuntuKylin
Ubuntu MATE https://wiki.ubuntu.com/VividVervet/ReleaseNotes/UbuntuMATE
Ubuntu Studio https://wiki.ubuntu.com/VividVervet/ReleaseNotes/UbuntuStudio
Xubuntu https://wiki.ubuntu.com/VividVervet/ReleaseNotes/Xubuntu