Qubes OS 2 Beta 3 發布，面向安全的、基于Fedora的桌面Linux發行

Qubes OS是面向安全的、基于Fedora的桌面Linux發行，其主要理念是基于隔離的安全，而這靠輕量級的Xen虛擬機來實現隔離域。它旨在結合兩個貌似矛 盾的目標：如何使不同域之間的隔離盡可能強，這主要靠能夠使可信代碼盡量小的更靈巧的結構，以及如何使這種隔離盡可能無縫和容易。
Joanna Rutkowska has announced the availability of the third beta release of Qubes OS 2, a Fedora-based distribution designed to provide strong security for desktop computing: " Today we're releasing Qubes R2 beta 3, the latest milestone on our roadmap for Qubes R2. Even though it is still called a beta, most users should install it, because, we believe, it is the most polished and stable Qubes version. Highlights: seamless GUI virtualization for Windows 7-based AppVMs, and support for HVM-based templates (e.g. Windows-based templates); a much more advanced infrastructure for system backups; it is now possible to set 'autostart' property on select VMs; we now ship the installer with multiple kernel versions (3.7, 3.9, and 3.11); new monitor layout is now dynamically propagated to the AppVMs; cleanups and fixes." See the release announcement for further information. Download from SourceForge: Qubes-R2-Beta3-x86_64-DVD.iso (2,464MB).