IO.js 1.7.1 发布，服务器 JS 引擎

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　　IO.js 1.7.1 发布，此版本改进了对 ARM 的支持，现在 ARM 上面此版本能够顺利创建和测试了。
　　
　　值得关注的改进如下：
　　
　　

• 　　C++ API: Fedor Indutny contributed a feature to V8 which has been backported to the V8 bundled in io.js. SealHandleScope allows a C++ add-on author to seal a HandleScopeto prevent further, unintended allocations within it. Currently only enabled for debug builds of io.js. This feature helped detect the leak in #1075 and is now activated on the root HandleScope in io.js. (Fedor Indutny) #1395.
  
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  　　ARM: This>
  
  
  
  • 　　ARMv8 64-bit (AARCH64) is now properly supported, including a backported fix in libuv that was mistakenly detecting the existence of epoll_wait(). (Ben Noordhuis) #1365.
    
  • 　　ARMv6: #1376 reported a problem with Math.exp() on ARMv6 (incl Raspberry Pi). The culprit is erroneous codegen for ARMv6 when using the "fast math" feature of V8. --nofast_math has been turned on for all ARMv6 variants by default to avoid this, fast math can be turned back on with --fast_math. (Ben Noordhuis) #1398.
    
  • 　　Tests: timeouts have been tuned specifically for slower platforms, detected as ARMv6 and ARMv7. (Roman Reiss) #1366.
    
  
  
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  　　npm: Upgrade npm to 2.7.6. See the>
  
  
  
  • 　　b747593#7630 Don't automatically log all git failures as errors. maybeGithub needs to be able to fail without logging to support its fallback logic. (@othiym23)
    
  • 　　78005eb#7743 Always quote arguments passed to npm run-script. This allows build systems and the like to safely escape glob patterns passed as arguments to run-scripts with npm run-script  -- . This is a tricky change to test, and may be reverted or moved to npm@3 if it turns out it breaks things for users. (@mantoni)
    
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    　　da015ee#7074 read-package-json@1.3.3: read-package-json no longer caches package.json files, which trades a very small performance loss for the elimination of a large>
    
  
  

　　详细更新内容请看更新日志。
　　
　　此版本现已提供下载：https://github.com/iojs/io.js/releases/tag/v1.7.1
　　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)