Qubes OS 2 Beta 2 发布，基于Fedora的桌面Linux发行

Qubes OS是面向安全的、基于Fedora的桌面Linux发行，其主要理念是基于隔离的安全，而这靠轻量级的Xen虚拟机来实现隔离域。它旨在结合两个貌似矛盾的目标：如何使不同域之间的隔离尽可能强，这主要靠能够使可信代码尽量小的更灵巧的结构，以及如何使这种隔离尽可能无缝和容易。
 
Joanna Rutkowska has announced the availability of the second beta release of Qubes OS 2, a Fedora-based desktop Linux distribution whose main concept is "security by isolation" by using domains implemented as lightweight Xen virtual machines: " Qubes 2 beta 2 has been released. We're progressing fast and today I would like to announce the release of Qubes R2 beta 2. The major changes in this beta release include: upgraded Dom0 distribution to the latest Fedora 18 (all previous releases used Fedora 13 for Dom0); upgraded default VM template also to Fedora 18; upgraded Dom0 kernel to 3.7.6; upgraded KDE environment in Dom0 (KDE 4.9); introduced Xfce 4.10 environment for Dom0 as an alternative to KDE; a few other fixes and improvements, including the recently discussed disposable VM-based PDF converter. The upgrade of the Dom0 distribution and kernel should significantly improve hardware compatibility." See the release announcement for more information and a screenshot. Download: Qubes-R2-Beta2-x86_64-DVD.iso (2,139MB).