Whats new in version 0.8.21:• V8: downgrade 3.14.5
• openssl: update to 1.0.1e
• darwin: Make process.title work properly (Ben Noordhuis)
• fs: Support mode/flag options to read/append/writeFile (isaacs)
• stream: _read() no longer takes a callback (isaacs)
• stream: Add stream.unshift(chunk) (isaacs)
• stream: remove lowWaterMark feature (isaacs)
• net: omit superfluous 'connect' event (Ben Noordhuis)
• build, windows: disable SEH (Ben Noordhuis)
• core: remove errno global (Ben Noordhuis)
• core: Remove the nextTick for running the main file (isaacs)
• core: Mark exit() calls with status codes (isaacs)
• core: Fix debug signal handler race condition lock (isaacs)
• crypto: clear error stack (Ben Noordhuis)
• test: optionally set common.PORT via env variable (Timothy J Fontaine)
• path: Throw TypeError on non-string args to path.resolve/join (isaacs, Arianit Uka)
• crypto: fix uninitialized memory access in openssl (Ben Noordhuis)
Publisher review:Node is a free and open source server-side JavaScript environment that uses an asynchronous event-driven model.
Node is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications.
Node uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
The official name of Node is "Node". The unofficial name is "Node.js" to disambiguate it from other nodes.
Requirements:Operating system:Mac OS X
Node 0.8.21 details 
