Node v4.2.1 (LTS) 发布下载，修复两项回退

Node v4.2.1 (LTS) 发布下载，更新内容如下

主要更新

• Includes fixes for two regressions
• Assertion error in WeakCallback  - see #3329
• Undefined timeout regression - see #3331

已知 issues

• When a server queues a large amount of data to send to a client over a pipelined HTTP connection, the underlying socket may be destroyed. See #3332 and #3342.
• Some problems with unreferenced timers running during beforeExit are still to be resolved. See #1264.
• Surrogate pair in REPL can freeze terminal. #690
• Calling dns.setServers() while a DNS query is in progress can cause the process to crash on a failed assertion. #894
• url.resolve may transfer the auth portion of the url when resolving between two full hosts, see #1435.

Commits

• [b3cbd13340] - buffer: fix assertion error in WeakCallback (Fedor Indutny) #3329
• [102cb7288c] - doc: label v4.2.0 as LTS in changelog heading (Rod Vagg) #3343
• [c245a199a7] - lib: fix undefined timeout regression (Ryan Graham) [#3331](https://github.com/nodejs/node/pull/3331

详情请看：发行说明

下载地址：

• Windows 32-bit Installer: https://nodejs.org/dist/v4.2.1/node-v4.2.1-x86.msi
• Windows 64-bit Installer: https://nodejs.org/dist/v4.2.1/node-v4.2.1-x64.msi
• Windows 32-bit Binary: https://nodejs.org/dist/v4.2.1/win-x86/node.exe
• Windows 64-bit Binary: https://nodejs.org/dist/v4.2.1/win-x64/node.exe
• Mac OS X 64-bit Installer: https://nodejs.org/dist/v4.2.1/node-v4.2.1.pkg
• Mac OS X 64-bit Binary: https://nodejs.org/dist/v4.2.1/node-v4.2.1-darwin-x64.tar.gz
• Linux 32-bit Binary: https://nodejs.org/dist/v4.2.1/node-v4.2.1-linux-x86.tar.gz
• Linux 64-bit Binary: https://nodejs.org/dist/v4.2.1/node-v4.2.1-linux-x64.tar.gz
• SunOS 32-bit Binary: https://nodejs.org/dist/v4.2.1/node-v4.2.1-sunos-x86.tar.gz
• SunOS 64-bit Binary: https://nodejs.org/dist/v4.2.1/node-v4.2.1-sunos-x64.tar.gz
• ARMv6 32-bit Binary: Coming soon
• ARMv7 32-bit Binary: https://nodejs.org/dist/v4.2.1/node-v4.2.1-linux-armv7l.tar.gz
• ARMv8 64-bit Binary: https://nodejs.org/dist/v4.2.1/node-v4.2.1-linux-arm64.tar.gz
• Source Code: https://nodejs.org/dist/v4.2.1/node-v4.2.1.tar.gz
• Other release files: https://nodejs.org/dist/v4.2.1/
• Documentation: https://nodejs.org/docs/v4.2.1/api/

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