CoreOS Alpha 660.0.0 发布，此版本改进内容如下：
Linux 4.0
Demote XEN framebuffer to module (https://github.com/coreos/coreos-overlay/pull/1206)
Fixes 30s pause during boot (https://github.com/coreos/bugs/issues/208)
util-linux 2.25.2
dracut 041
open-vm-tools 9.10.0
vim 7.4
Bind /run into toolbox (https://github.com/coreos/toolbox/pull/14)
此版本现已提供下载：https://github.com/coreos/manifest/archive/v660.0.0.zip。