March 12th, 2013· Streams - Added base classes for Readable, Writable, Duplex, and Transform
· Streaming interfaces for Crypto API
· process: add getgroups(), setgroups(), initgroups()
· crypto: getHashes() getCiphers()
· http: add response.headersSent property
· events: 'removeListener' event
· setImmediate() and clearImmediate() functions
· string_decoder: the decoder.end() function was added
December 21st, 2012· npm: Upgrade to 1.1.69.
· fs: fix WriteStream/ReadStream fd leaks.
· crypto: fix leak in GetPeerCertificate.
· buffer: Don't double-negate numeric buffer arg.
· net: More accurate IP address validation and IPv6 dotted notation.