Notable changes:
* buffer:
- Due to changes in V8, it has been necessary to reimplement Buffer
on top of V8's Uint8Array. While every effort has been made to
maintain performance, users are likely to experience a different
performance profile depending on how Buffer is used.
(Trevor Norris) #1825.
- Buffer can now take ArrayBuffers as a constructor argument
(Trevor Norris) #2002.
- When a single buffer is passed to Buffer.concat(), a new, copied
Buffer object will be returned; previous behavior was to return
the original Buffer object (Sakthipriyan Vairamani) #1937.
* build: PPC support has been added to core to allow compiling on
pLinux BE and LE (AIX support coming soon) (Michael Dawson) #2124.
* dgram: If an error occurs within socket.send() and a callback has
been provided, the error is only passed as the first argument to the
callback and not emitted on the socket object; previous behavior was
to do both (Matteo Collina & Chris Dickinson) #1796
* freelist: Deprecate the undocumented freelist core module
(Sakthipriyan Vairamani) #2176.
* http:
- Status codes now all use the official IANA names as per RFC7231,
e.g. http.STATUS_CODES[414] now returns 'URI Too Long' rather than
'Request-URI Too Large' (jomo) #1470.
- Calling .getName() on an HTTP agent no longer returns a trailing
colon, HTTPS agents will no longer return an extra colon near the
middle of the string (Brendan Ashworth) #1617.
* node:
- NODE_MODULE_VERSION has been bumped to 45 to reflect the break in
ABI (Rod Vagg) #2096.
- Introduce a new process.release object that contains a name
property set to 'io.js' and sourceUrl, headersUrl and libUrl
(Windows only) properties containing URLs for the relevant
resources; this is intended to be used by node-gyp
(Rod Vagg) #2154.
- The version of node-gyp bundled with io.js now downloads and uses
a tarball of header files from iojs.org rather than the full
source for compiling native add-ons; it is hoped this is a
temporary floating patch and the change will be upstreamed to
node-gyp soon (Rod Vagg) #2066.
* repl: Persistent history is now enabled by default. The history file
is located at ~/.node_repl_history, which can be overridden by the
new environment variable NODE_REPL_HISTORY. This deprecates the
previous NODE_REPL_HISTORY_FILE variable. Additionally, the format
of the file has been changed to plain text to better handle file
corruption. (Jeremiah Senkpiel) #2224.
* smalloc: The smalloc module has been removed as it is no longer
possible to provide the API due to changes in V8
(Ben Noordhuis) #2022.
* tls: Add server.getTicketKeys() and server.setTicketKeys() methods
for TLS session key rotation (Fedor Indutny) #2227.
* v8: Upgraded to 4.4.63.26
- ES6: Enabled computed property names
- ES6: Array can now be subclassed in strict mode
- ES6: Implement rest parameters in staging, use the
--harmony-rest-parameters command line flag
- ES6: Implement the spread operator in staging, use the
--harmony-spreadcalls command line flag
- Removed SetIndexedPropertiesToExternalArrayData and related APIs,
forcing a shift to Buffer to be reimplemented based on Uint8Array
- Introduction of Maybe and MaybeLocal C++ API for objects which may
or may not have a value.
- Added support for PPC
PR-URL: https://github.com/nodejs/io.js/pull/2299
- Due to changes in V8, it has been necessary to reimplement `Buffer` on top of V8's `Uint8Array`. Every effort has been made to minimize the performance impact, however `Buffer` instantiation is measurably slower. Access operations may be faster in some circumstances but the exact performance profile and difference over previous versions will depend on how `Buffer` is used within applications. (Trevor Norris) [#1825](https://github.com/nodejs/io.js/pull/1825).
- `Buffer` can now take `ArrayBuffer`s as a constructor argument (Trevor Norris) [#2002](https://github.com/nodejs/io.js/pull/2002).
- When a single buffer is passed to `Buffer.concat()`, a new, copied `Buffer` object will be returned; previous behavior was to return the original `Buffer` object (Sakthipriyan Vairamani) [#1937](https://github.com/nodejs/io.js/pull/1937).
* **build**: PPC support has been added to core to allow compiling on pLinux BE and LE (AIX support coming soon) (Michael Dawson) [#2124](https://github.com/nodejs/io.js/pull/2124).
* **dgram**: If an error occurs within `socket.send()` and a callback has been provided, the error is only passed as the first argument to the callback and not emitted on the `socket` object; previous behavior was to do both (Matteo Collina & Chris Dickinson) [#1796](https://github.com/nodejs/io.js/pull/1796)
- Status codes now all use the official [IANA names](http://www.iana.org/assignments/http-status-codes) as per [RFC7231](https://tools.ietf.org/html/rfc7231), e.g. `http.STATUS_CODES[414]` now returns `'URI Too Long'` rather than `'Request-URI Too Large'` (jomo) [#1470](https://github.com/nodejs/io.js/pull/1470).
- Calling .getName() on an HTTP agent no longer returns a trailing colon, HTTPS agents will no longer return an extra colon near the middle of the string (Brendan Ashworth) [#1617](https://github.com/nodejs/io.js/pull/1617).
* **node**:
- `NODE_MODULE_VERSION` has been bumped to `45` to reflect the break in ABI (Rod Vagg) [#2096](https://github.com/nodejs/io.js/pull/2096).
- Introduce a new `process.release` object that contains a `name` property set to `'io.js'` and `sourceUrl`, `headersUrl` and `libUrl` (Windows only) properties containing URLs for the relevant resources; this is intended to be used by node-gyp (Rod Vagg) [#2154](https://github.com/nodejs/io.js/pull/2154).
- The version of node-gyp bundled with io.js now downloads and uses a tarball of header files from iojs.org rather than the full source for compiling native add-ons; it is hoped this is a temporary floating patch and the change will be upstreamed to node-gyp soon (Rod Vagg) [#2066](https://github.com/nodejs/io.js/pull/2066).
* **repl**: Persistent history is now enabled by default. The history file is located at ~/.node_repl_history, which can be overridden by the new environment variable `NODE_REPL_HISTORY`. This deprecates the previous `NODE_REPL_HISTORY_FILE` variable. Additionally, the format of the file has been changed to plain text to better handle file corruption. (Jeremiah Senkpiel) [#2224](https://github.com/nodejs/io.js/pull/2224).
* **smalloc**: The `smalloc` module has been removed as it is no longer possible to provide the API due to changes in V8 (Ben Noordhuis) [#2022](https://github.com/nodejs/io.js/pull/2022).
* **tls**: Add `server.getTicketKeys()` and `server.setTicketKeys()` methods for [TLS session key](https://www.ietf.org/rfc/rfc5077.txt) rotation (Fedor Indutny) [#2227](https://github.com/nodejs/io.js/pull/2227).
- ES6: `Array` can now be subclassed in strict mode
- ES6: Implement [rest parameters](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Functions/rest_parameters) in staging, use the `--harmony-rest-parameters` command line flag
- ES6: Implement the [spread operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator) in staging, use the `--harmony-spreadcalls` command line flag
- Removed `SetIndexedPropertiesToExternalArrayData` and related APIs, forcing a shift to `Buffer` to be reimplemented based on `Uint8Array`
- Introduction of `Maybe` and `MaybeLocal` C++ API for objects which _may_ or _may not_ have a value.
- Added support for PPC
See also https://github.com/nodejs/io.js/wiki/Breaking-Changes#300-from-2x for a summary of the breaking changes (SEMVER-MAJOR).
### Known issues
See https://github.com/nodejs/io.js/labels/confirmed-bug for complete and current list of known issues.
* Some problems with unreferenced timers running during `beforeExit` are still to be resolved. See [#1264](https://github.com/nodejs/io.js/issues/1264).
* Surrogate pair in REPL can freeze terminal. [#690](https://github.com/nodejs/io.js/issues/690)
* `process.send()` is not synchronous as the docs suggest, a regression introduced in 1.0.2, see [#760](https://github.com/nodejs/io.js/issues/760).
* Calling `dns.setServers()` while a DNS query is in progress can cause the process to crash on a failed assertion. [#894](https://github.com/nodejs/io.js/issues/894)
* `url.resolve` may transfer the auth portion of the url when resolving between two full hosts, see [#1435](https://github.com/nodejs/io.js/issues/1435).
* [[`e5ada116cd`](https://github.com/nodejs/io.js/commit/e5ada116cd)] - **buffer**: minor cleanup from rebase (Trevor Norris) [#2003](https://github.com/nodejs/io.js/pull/2003)
* [[`eea66e2a7b`](https://github.com/nodejs/io.js/commit/eea66e2a7b)] - **(SEMVER-MAJOR)** **buffer**: fix case of one buffer passed to concat (Sakthipriyan Vairamani) [#1937](https://github.com/nodejs/io.js/pull/1937)
* [[`8664084166`](https://github.com/nodejs/io.js/commit/8664084166)] - **buffer**: make additional changes to native API (Trevor Norris) [#1825](https://github.com/nodejs/io.js/pull/1825)
* [[`36f78f4c1c`](https://github.com/nodejs/io.js/commit/36f78f4c1c)] - **buffer**: switch API to return MaybeLocal<T> (Trevor Norris) [#1825](https://github.com/nodejs/io.js/pull/1825)
* [[`571ec13841`](https://github.com/nodejs/io.js/commit/571ec13841)] - **buffer**: switch to using Maybe<T> API (Trevor Norris) [#1825](https://github.com/nodejs/io.js/pull/1825)
* [[`23be6ca189`](https://github.com/nodejs/io.js/commit/23be6ca189)] - **buffer**: allow ARGS_THIS to accept a name (Trevor Norris) [#1825](https://github.com/nodejs/io.js/pull/1825)
* [[`971de5e417`](https://github.com/nodejs/io.js/commit/971de5e417)] - **build**: prepare Windows installer for i18n support (Frederic Hemberger) [#2247](https://github.com/nodejs/io.js/pull/2247)
* [[`2ba8b23661`](https://github.com/nodejs/io.js/commit/2ba8b23661)] - **build**: add 'x86' option back in to configure (Rod Vagg) [#2233](https://github.com/nodejs/io.js/pull/2233)
* [[`b4226e797a`](https://github.com/nodejs/io.js/commit/b4226e797a)] - **build**: first set of updates to enable PPC support (Michael Dawson) [#2124](https://github.com/nodejs/io.js/pull/2124)
* [[`24dd016deb`](https://github.com/nodejs/io.js/commit/24dd016deb)] - **build**: produce symbol map files on windows (Ali Ijaz Sheikh) [#2243](https://github.com/nodejs/io.js/pull/2243)
* [[`423d8944ce`](https://github.com/nodejs/io.js/commit/423d8944ce)] - **cluster**: do not unconditionally set --debug-port (cjihrig) [#1949](https://github.com/nodejs/io.js/pull/1949)
* [[`2a63cf612b`](https://github.com/nodejs/io.js/commit/2a63cf612b)] - **deps**: make node-gyp work with io.js (cjihrig) [iojs/io.js#990](https://github.com/iojs/io.js/pull/990)
* [[`ef2c8cd4ec`](https://github.com/nodejs/io.js/commit/ef2c8cd4ec)] - **(SEMVER-MAJOR)** **dgram**: make send cb act as "error" event handler (Matteo Collina) [#1796](https://github.com/nodejs/io.js/pull/1796)
* [[`3da057fef6`](https://github.com/nodejs/io.js/commit/3da057fef6)] - **(SEMVER-MAJOR)** **dgram**: make send cb act as "error" event handler (Chris Dickinson) [#1796](https://github.com/nodejs/io.js/pull/1796)
* [[`df1994fe53`](https://github.com/nodejs/io.js/commit/df1994fe53)] - ***Revert*** "**dns**: remove AI_V4MAPPED hint flag on FreeBSD" (cjihrig) [iojs/io.js#1555](https://github.com/iojs/io.js/pull/1555)
* [[`500f2538cc`](https://github.com/nodejs/io.js/commit/500f2538cc)] - **doc**: a listener, not "an" listener (Sam Roberts) [#1025](https://github.com/nodejs/io.js/pull/1025)
* [[`54627a919d`](https://github.com/nodejs/io.js/commit/54627a919d)] - **doc**: server close event does not have an argument (Sam Roberts) [#1025](https://github.com/nodejs/io.js/pull/1025)
* [[`2d9456e3e6`](https://github.com/nodejs/io.js/commit/2d9456e3e6)] - **(SEMVER-MAJOR)** **http**: use official IANA Status Codes (jomo) [#1470](https://github.com/nodejs/io.js/pull/1470)
* [[`9bc2e26720`](https://github.com/nodejs/io.js/commit/9bc2e26720)] - **net**: do not set V4MAPPED on FreeBSD (Julien Gilli) [iojs/io.js#1555](https://github.com/iojs/io.js/pull/1555)
* [[`ef65321083`](https://github.com/nodejs/io.js/commit/ef65321083)] - **(SEMVER-MAJOR)** **node**: do not override `message`/`stack` of error (Fedor Indutny) [#2108](https://github.com/nodejs/io.js/pull/2108)
* [[`9f727f5e03`](https://github.com/nodejs/io.js/commit/9f727f5e03)] - **node-gyp**: detect RC build with x.y.z-rc.n format (Rod Vagg) [#2171](https://github.com/nodejs/io.js/pull/2171)
* [[`ed6c249104`](https://github.com/nodejs/io.js/commit/ed6c249104)] - **(SEMVER-MAJOR)** **repl**: persist history in plain text (Jeremiah Senkpiel) [#2224](https://github.com/nodejs/io.js/pull/2224)
* [[`64cf71195c`](https://github.com/nodejs/io.js/commit/64cf71195c)] - **test**: change the hostname to an invalid name (Sakthipriyan Vairamani) [#2287](https://github.com/nodejs/io.js/pull/2287)
* [[`80a1cf7425`](https://github.com/nodejs/io.js/commit/80a1cf7425)] - **test**: fix messages and use return to skip tests (Sakthipriyan Vairamani) [#2290](https://github.com/nodejs/io.js/pull/2290)
* [[`d5ab92bcc1`](https://github.com/nodejs/io.js/commit/d5ab92bcc1)] - **test**: use common.isWindows consistently (Sakthipriyan Vairamani) [#2269](https://github.com/nodejs/io.js/pull/2269)
See https://github.com/nodejs/io.js/labels/confirmed-bug for complete and current list of known issues.
See https://github.com/nodejs/io.js/labels/confirmed-bug for complete and current list of known issues.
* Using multiple REPL instances in parallel may cause some REPL history corruption or loss. [#1634](https://github.com/nodejs/io.js/issues/1634)
* Some problems with unreferenced timers running during `beforeExit` are still to be resolved. See [#1264](https://github.com/nodejs/io.js/issues/1264).
* Some problems with unreferenced timers running during `beforeExit` are still to be resolved. See [#1264](https://github.com/nodejs/io.js/issues/1264).
* Surrogate pair in REPL can freeze terminal. [#690](https://github.com/nodejs/io.js/issues/690)
* Surrogate pair in REPL can freeze terminal. [#690](https://github.com/nodejs/io.js/issues/690)
* `process.send()` is not synchronous as the docs suggest, a regression introduced in 1.0.2, see [#760](https://github.com/nodejs/io.js/issues/760).
* `process.send()` is not synchronous as the docs suggest, a regression introduced in 1.0.2, see [#760](https://github.com/nodejs/io.js/issues/760).
Rod Vagg
10 years ago