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 HandleScope to 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.
ARM: This release includes significant work to improve the state of ARM support for builds and tests. The io.js CI cluster's ARMv6, ARMv7 and ARMv8 build servers are now all (mostly) reporting passing builds and tests.
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.
: #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.
npm: Upgrade npm to 2.7.6. See the release notes for details. Summary:
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
