FreeBSD 10.0-RC4 发布，类UNIX操作系统

FreeBSD是类UNIX操作系统，它基于加州伯克利大学的“4.4BSD-Lite”发行并带有一些“4.4BSD-Lite2”增强，面向 i386、amd64、IA-64、arm、MIPS、powerpc、ppc64、PC-98、UltraSPARC等平台。它还间接地基于 “386BSD”，此乃William Jolitz对加州伯克利大学的“Net/2”往i386系统上的移植，尽管如今只有极少的代码保留下来。FreeBSD被全世界的公司、因特网服务提供 商、科研人员、计算机专家、学生、家庭用户等用于他们的工作、教育、娱乐中。FreeBSD带有20000多个软件包，它们是预编译和打包好了、便于安装 的软件，并覆盖了广阔的应用领域：服务器软件、数据库和网页服务器、桌面软件、游戏、网络浏览器和商务软件，而这一切都是免费和易于安装的。

The long and intensive development cycle of FreeBSD 10.0 continues today with the fourth (and probably last) release candidate:
" The fourth RC build of the 10.0-RELEASE release cycle is now available on the FTP servers for the amd64, i386, ia64, powerpc, powerpc64 and sparc64 architectures. This is expected to be the final RC build of the 10.0-RELEASE cycle. Changes between -RC4 and -RC4 include: tighten default restrictions for ntpd(8) server; fix kernel crash discovered with recent Java port update. Important note to freebsd-update(8) users - please be sure to follow the instructions in the following FreeBSD errata notices before upgrading the system to 10.0-RC4." Read Glen Barber's release announcement for more information, upgrade instructions and related links. Download:
FreeBSD-10.0-RC4-amd64-dvd1.iso (2,369MB, SHA256),
FreeBSD-10.0-RC4-i386-dvd1.iso (2,207MB, SHA256).
The final release of FreeBSD 10.0 is now expected on 14 January 2014.