按照官方公布的发布时间列表，3 月 29 日将发布 Beta2 版本的 Ubuntu 12.04 LTS，在经过了不同时区的时间变换后，现在已经可以下载了。有兴趣的同学们不妨一试。

　　Beta2 版本内核升级到了 Linux kernel 3.2.12。相对于 Beta1 来说也有了很大的变化。LibreOffice 升级到 3.5.1，Unity 升级到 5.8。GNOME 升级到 3.3.x。

　　再次更新了 Ubuntu One ，一个更全面功能的 Ubuntu One 音乐商店被添加在 Rhythmbox 中。Nautilus ribbon 中的 “Enable Sync” 已经被删除。

　　新的系统设置面板中增加了名为“Management Service”的服务，可以帮助系统管理员轻松的管理多台计算机。

点击查看原始大图

发布时间列表：

• December 1st, 2011 - Alpha 1 release
• February 2nd, 2012 - Alpha 2 release
• March 1st, 2012 - Beta 1 release
• March 29th, 2012 - Beta 2 release
• April 26th, 2012 - Final release of Ubuntu 12.04 LTS

Download Ubuntu 12.04 LTS Beta 2 下载地址：

• Ubuntu 12.04 LTS Beta 2 (ISO) Desktop CD i386
  [iso] [701 MB]
  http://releases.ubuntu.com/precise/ubuntu-12.04-beta2-desktop-i386.iso
• Ubuntu 12.04 LTS Beta 2 (ISO) Desktop CD amd64
  [iso] [699 MB]
  http://releases.ubuntu.com/precise/ubuntu-12.04-beta2-desktop-amd64.iso
• Ubuntu 12.04 LTS Beta 2 (ISO) Alternate CD i386
  [iso] [683 MB]
  http://releases.ubuntu.com/precise/ubuntu-12.04-beta2-alternate-i386.iso
• Ubuntu 12.04 LTS Beta 2 (ISO) Alternate CD amd64
  [iso] [691 MB]
  http://releases.ubuntu.com/precise/ubuntu-12.04-beta2-alternate-amd64.iso

Download Ubuntu DVD 12.04 LTS Beta 2

• Ubuntu DVD 12.04 LTS Beta 2 (ISO) i386
  [iso] [1.50 GB]
  http://cdimage.ubuntu.com/releases/precise/beta-2/ubuntu-12.04-beta2-dvd-i386.iso
• Ubuntu DVD 12.04 LTS Beta 2 (ISO) amd64
  [iso] [1.50 GB]
  http://cdimage.ubuntu.com/releases/precise/beta-2/ubuntu-12.04-beta2-dvd-amd64.iso

Download Ubuntu Server 12.04 LTS Beta 2

• Ubuntu Server 12.04 LTS Beta 2 (ISO) i386
  [iso] [677 MB]
  http://releases.ubuntu.com/precise/ubuntu-12.04-beta2-server-i386.iso
• Ubuntu Server 12.04 LTS Beta 2 (ISO) amd64
  [iso] [689 MB]
  http://releases.ubuntu.com/precise/ubuntu-12.04-beta2-server-amd64.iso

Download Ubuntu Cloud Server 12.04 LTS Beta 2

• Ubuntu Cloud 12.04 LTS Beta 2 (tar.gz) i386
  [binary] [193 MB]
  http://cloud-images.ubuntu.com/releases/precise/beta-2/ubuntu-12.04-beta2-server-cloudimg-i386.tar.gz
• Ubuntu Cloud 12.04 LTS Beta 2 (tar.gz) amd64
  [binary] [210 MB]
  http://cloud-images.ubuntu.com/releases/precise/beta-2/ubuntu-12.04-beta2-server-cloudimg-amd64.tar.gz
• Ubuntu Cloud 12.04 LTS Beta 2 (tar.gz) Armhf
  [binary] [188 MB]
  http://cloud-images.ubuntu.com/releases/precise/beta-2/ubuntu-12.04-beta2-server-cloudimg-armhf.tar.gz

Download Ubuntu ARM 12.04 LTS Beta 2

• Ubuntu ARM 12.04 LTS Beta 1 (img.gz) Armhf OMAP4 Desktop
  [iso] [499 MB]
  http://cdimage.ubuntu.com/releases/precise/beta-2/ubuntu-12.04-beta2-preinstalled-desktop-armhf+omap4.img.gz
• Ubuntu ARM 12.04 LTS Beta 1 (tar.gz) Armhf AC100 Desktop
  [iso] [486 MB]
  http://cdimage.ubuntu.com/releases/precise/beta-2/ubuntu-12.04-beta2-preinstalled-desktop-armhf+ac100.tar.gz
• Ubuntu ARM 12.04 LTS Beta 1 (img.gz) Armhf MX5 Desktop
  [iso] [522 MB]
  http://cdimage.ubuntu.com/releases/precise/beta-2/ubuntu-12.04-beta2-preinstalled-desktop-armhf+mx5.img.gz
• Ubuntu ARM 12.04 LTS Beta 1 (img.gz) Armhf OMAP4 Server
  [iso] [646 MB]
  http://cdimage.ubuntu.com/releases/precise/beta-2/ubuntu-12.04-beta2-preinstalled-server-armhf+omap4.img.gz

Download Ubuntu Core 12.04 LTS Beta 2

• Ubuntu Core 12.04 LTS Beta 2 (tar.gz) i386
  [binary] [35 MB]
  http://cdimage.ubuntu.com/ubuntu-core/releases/12.04/beta-2/ubuntu-core-12.04-beta2-core-i386.tar.gz
• Ubuntu Core 12.04 LTS Beta 2 (tar.gz) amd64
  [binary] [38 MB]
  http://cdimage.ubuntu.com/ubuntu-core/releases/12.04/beta-2/ubuntu-core-12.04-beta2-core-amd64.tar.gz