Ubuntu 11.10 今天发布了 第二个 Beta 版本，下载地址：
与 Beta1 版本比较，Beta2 主要改进：
- Dash window controls now respect the Dash design. Also, the minimize Dash button has been disabled as it was confusing, so now you only use one button for maximize/restore.
- The Unity launcher now inherits the wallpaper color too (when Dash is not active), just like Dash.
- The workspace switcher uses orange borders, the spaces on the sides has been removed and empty workspaces are dimmed out
- Various changes made to the Ubuntu Software Center, including a new "Our star apps" banner, support for Radiance theme and more minor tweaks
- Unity launcher icons become saturated when hovering them (when you open Dash)
- Accessibility support for the LightDM login screen