---
date: '2011-10-22T02:12:31.000Z'
category: release
title: Node.js 0.5.10
layout: blog-post
author: Ryan Dahl
---

2011.10.21, Version 0.5.10 (unstable)

- Remove cmake build system, support for Cygwin, legacy code base, process.ENV, process.ARGV, process.memoryUsage().vsize, os.openOSHandle
- Documentation improvements (Igor Zinkovsky, Bert Belder, Ilya Dmitrichenko, koichik, Maciej Małecki, Guglielmo Ferri, isaacs)
- Performance improvements (Daniel Ennis, Bert Belder, Ben Noordhuis)
- Long process.title support (Ben Noordhuis)
- net: register net.Server callback only once (Simen Brekken)
- net: fix connect queue bugs (Ben Noordhuis)
- debugger: fix backtrace err handling (Fedor Indutny)
- Use getaddrinfo instead of c-ares for dns.lookup
- Emit 'end' from crypto streams on close
- repl: print out `undefined` (Nathan Rajlich)
- #1902 buffer: use NO_NULL_TERMINATION flag (koichik)
- #1907 http: Added support for HTTP PATCH verb (Thomas Parslow)
- #1644 add GetCPUInfo on windows (Karl Skomski)
- #1484, #1834, #1482, #771 Don't use a separate context for the repl. (isaacs)
- #1882 zlib Update 'availOutBefore' value, and test (isaacs)
- #1888 child_process.fork: don't modify args (koichik)
- #1516 tls: requestCert unusable with Firefox and Chrome (koichik)
- #1467 tls: The TLS API is inconsistent with the TCP API (koichik)
- #1894 net: fix error handling in listen() (koichik)
- #1860 console.error now goes through uv_tty_t
- Upgrade V8 to 3.7.0
- Upgrade GYP to r1081

Download: [https://nodejs.org/dist/v0.5.10/node-v0.5.10.tar.gz](https://nodejs.org/dist/v0.5.10/node-v0.5.10.tar.gz)

Windows Executable: [https://nodejs.org/dist/v0.5.10/node.exe](https://nodejs.org/dist/v0.5.10/node.exe)

Website: [https://nodejs.org/docs/v0.5.10/](https://nodejs.org/docs/v0.5.10/)

Documentation: [https://nodejs.org/docs/v0.5.10/api/](https://nodejs.org/docs/v0.5.10/api/)
