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

Windows Executable: https://nodejs.org/dist/v0.5.10/node.exe

Website: https://nodejs.org/docs/v0.5.10/

Documentation: https://nodejs.org/docs/v0.5.10/api/