NetBSD 7.0 RC2 发布，相比 7.0 RC1 的更新主要如下：
OpenSSL updated to 1.0.1p
BIND updated to 9.10.2-P2
IPSEC support is now included by default in Xen kernels
Fix several security issues in calendar(1)
installboot(8) now supports wedge names
Fix a quota panic when using WAPBL (PR 49948)
Fix a memory leak in the drm2 code
Avoid an X crash on i915 DRMKMS
Add a postinstall(8) check to ensure that /etc/man.conf reflects the modern mandoc world (PR 50020)
Add a postinstall(8) check to ensure that /etc/fonts/fonts.conf is up to date
tset(1): Fix handling of the erase character
gdb(1): Fix attaching to a running process again after previously detaching
NPF: handle unregistered interfaces correctly
npfctl(8): Fix a NULL dereference
zgrep(1): suppress the prefixing of filename on output when only one file is specified, to match grep(1)'s output
Fix lrint(x) and llrint(x) when x is larger than 2**51 (PR 49690)
Bump MAXTSIZ and MAXDSIZ on amiga, fixing gcc 4.8 execution
Fix MKCTF=yes on drm2 kernels
Make clock_t unsigned int everywhere, so it's the same on LP64 and IPL32 architectures
arm: if halt is requested and there is no console, keep looping instead of rebooting
sparc64: Fix booting of kernels with more than 4 MB combined .data and .bss segments
powerpc: Fix occasional FPU register corruption (PR 50037)
m68k: Fix atomic_cas_{8,16} and __sync_bool_compare_and_swap_{1,2,4} (PR 49995)
该版本下载地址：
http://ftp.netbsd.org/pub/NetBSD/NetBSD-7.0_RC2/
NetBSD 是一个免费的，具有高度移植性的 UNIX-like 操作系统，可以在许 多平台上执行，从 64bit alpha 服务器到掌上型的设备。由于简洁的设计 和先进的特征，使得它在生产和研究方面，都有卓越的表现，而且它也有受 使用者支持的完整的原始码。许多应用程序也是易于移植的。
软件详情：http://blog.netbsd.org/tnf/entry/netbsd_7_0_rc2
来自:开源中国社区
