FreeBSD 10.0 的第四个 Beta 版本发布了，与 Beta3 版本比较的改进内容包括： - Add preliminary support for RTL8106E, RTL8168G, RTL8168GU,
RTL8411B, and RTL8168EP.
- Enable fingerprint checking in pkg(8) for FreeBSD-provided binary
packages.
- Remove the WITH_LIBICONV_COMPAT build option.
- Update nvi to 2.1.2.
- Various iconv(3) fixes.
- Fix mergemaster -U by forcing FreeBSD 9 compatiblity in mtree when
mtree is nmtree.
- Fix to freebsd-update(8) in generating the list of old
files/directories versus new files/directories
(FreeBSD-EN-13:05.freebsd-update). 下载地址：ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/VM-IMAGES/10.0-BETA4/ | 
