io.js 2.2.0 发布，服务器 JS 引擎

#深圳# 6月10日 亚马逊AWSome Day云计算免费培训报名中

io.js 2.2.0 发布，此版本值得关注的改进如下：

• node: Speed-up require() by replacing usage of fs.statSync() and fs.readFileSync() with internal variants that are faster for this use-case and do not create as many objects for the garbage collector to clean up.  #1801.

• node: Resolution of pre-load modules (-r or --require) now follows the standard require() rules rather than just resolving paths(Ali Ijaz Sheikh) #1812.

• npm: Upgraded npm to v2.11.0. New hooks for preversion, version, and postversion lifecycle events, some SPDX-related license changes and license file inclusions. See the release notes for full details.

IO.js 是为 V8 引擎编写的基于事件 IO 的实现。

构建要求：

* `gcc` and `g++` 4.8 or newer, or
* `clang` and `clang++` 3.3 or newer
* Python 2.6 or 2.7
* GNU Make 3.81 or newer
* libexecinfo (FreeBSD and OpenBSD only)