# NAN ChangeLog
**Version 2.4.0: current Node 6.3.0, Node 12: 0.12.15, Node 10: 0.10.46, iojs: 3.3.1**
### 2.4.0 Jul 10 2016
– Feature: Rewrite Callback to add Callback::Reset c4cf44d61f8275cd5f7b0c911d7a806d4004f649
– Feature: AsyncProgressWorker: add template types for .send 1242c9a11a7ed481c8f08ec06316385cacc513d0
– Bugfix: Add constness to old Persistent comparison operators bd43cb9982c7639605d60fd073efe8cae165d9b2
### 2.3.5 May 31 2016
– Bugfix: Replace NAN_INLINE with ‘inline’ keyword. 71819d8725f822990f439479c9aba3b240804909
### 2.3.4 May 31 2016
– Bugfix: Remove V8 deprecation warnings 0592fb0a47f3a1c7763087ebea8e1138829f24f9
– Bugfix: Fix new versions not to use WeakCallbackInfo::IsFirstPass 615c19d9e03d4be2049c10db0151edbc3b229246
– Bugfix: Make ObjectWrap::handle() const d19af99595587fe7a26bd850af6595c2a7145afc
– Bugfix: Fix compilation errors related to 0592fb0a47f3a1c7763087ebea8e1138829f24f9 e9191c525b94f652718325e28610a1adcf90fed8
### 2.3.3 May 4 2016
– Bugfix: Refactor SetMethod() to deal with v8::Templates (#566) b9083cf6d5de6ebe6bcb49c7502fbb7c0d9ddda8
### 2.3.2 Apr 27 2016
– Bugfix: Fix compilation on outdated versions due to Handle removal f8b7c875d04d425a41dfd4f3f8345bc3a11e6c52
### 2.3.1 Apr 27 2016
– Bugfix: Don’t use deprecated v8::Template::Set() in SetMethod a90951e9ea70fa1b3836af4b925322919159100e
### 2.3.0 Apr 27 2016
– Feature: added Signal() for invoking async callbacks without sending data from AsyncProgressWorker d8adba45f20e077d00561b20199133620c990b38
– Bugfix: Don’t use deprecated v8::Template::Set() 00dacf0a4b86027415867fa7f1059acc499dcece
### 2.2.1 Mar 29 2016
– Bugfix: Use NewFromUnsigned in ReturnValue
– Performance: Remove unneeeded nullptr checks b715ef44887931c94f0d1605b3b1a4156eebece9
### 2.2.0 Jan 9 2016
– Feature: Add Function::Call wrapper 4c157474dacf284d125c324177b45aa5dabc08c6
– Feature: Rename GC*logueCallback to GCCallback for > 4.0 3603435109f981606d300eb88004ca101283acec
– Bugfix: Fix Global::Pass for old versions 367e82a60fbaa52716232cc89db1cc3f685d77d9
– Bugfix: Remove weird MaybeLocal wrapping of what already is a MaybeLocal 23b4590db10c2ba66aee2338aebe9751c4cb190b
### 2.1.0 Oct 8 2015
– Deprecation: Deprecate NanErrnoException in favor of ErrnoException 0af1ca4cf8b3f0f65ed31bc63a663ab3319da55c
– Feature: added helper class for accessing contents of typedarrays 17b51294c801e534479d5463697a73462d0ca555
– Feature: [Maybe types] Add MakeMaybe(…) 48d7b53d9702b0c7a060e69ea10fea8fb48d814d
– Feature: new: allow utf16 string with length 66ac6e65c8ab9394ef588adfc59131b3b9d8347b
– Feature: Introduce SetCallHandler and SetCallAsFunctionHandler 7764a9a115d60ba10dc24d86feb0fbc9b4f75537
– Bugfix: Enable creating Locals from Globals under Node 0.10. 9bf9b8b190821af889790fdc18ace57257e4f9ff
– Bugfix: Fix issue #462 where PropertyCallbackInfo data is not stored safely. 55f50adedd543098526c7b9f4fffd607d3f9861f
### 2.0.9 Sep 8 2015
– Bugfix: EscapableHandleScope in Nan::NewBuffer for Node 0.8 and 0.10 b1654d7
### 2.0.8 Aug 28 2015
– Work around duplicate linking bug in clang 11902da
### 2.0.7 Aug 26 2015
– Build: Repackage
### 2.0.6 Aug 26 2015
– Bugfix: Properly handle null callback in FunctionTemplate factory 6e99cb1
– Bugfix: Remove unused static std::map instances 525bddc
– Bugfix: Make better use of maybe versions of APIs bfba85b
– Bugfix: Fix shadowing issues with handle in ObjectWrap 0a9072d
### 2.0.5 Aug 10 2015
– Bugfix: Reimplement weak callback in ObjectWrap 98d38c1
– Bugfix: Make sure callback classes are not assignable, copyable or movable 81f9b1d
### 2.0.4 Aug 6 2015
– Build: Repackage
### 2.0.3 Aug 6 2015
– Bugfix: Don’t use clang++ / g++ syntax extension. 231450e
### 2.0.2 Aug 6 2015
– Build: Repackage
### 2.0.1 Aug 6 2015
– Bugfix: Add workaround for missing REPLACE_INVALID_UTF8 60d6687
– Bugfix: Reimplement ObjectWrap from scratch to prevent memory leaks 6484601
– Bugfix: Fix Persistent leak in FunctionCallbackInfo and PropertyCallbackInfo 641ef5f
– Bugfix: Add missing overload for Nan::NewInstance that takes argc/argv 29450ed
### 2.0.0 Jul 31 2015
– Change: Renamed identifiers with leading underscores b5932b4
– Change: Replaced NanObjectWrapHandle with class NanObjectWrap 464f1e1
– Change: Replace NanScope and NanEscpableScope macros with classes 47751c4
– Change: Rename NanNewBufferHandle to NanNewBuffer 6745f99
– Change: Rename NanBufferUse to NanNewBuffer 3e8b0a5
– Change: Rename NanNewBuffer to NanCopyBuffer d6af78d
– Change: Remove Nan prefix from all names 72d1f67
– Change: Update Buffer API for new upstream changes d5d3291
– Change: Rename Scope and EscapableScope to HandleScope and EscapableHandleScope 21a7a6a
– Change: Get rid of Handles e6c0daf
– Feature: Support io.js 3 with V8 4.4
– Feature: Introduce NanPersistent 7fed696
– Feature: Introduce NanGlobal 4408da1
– Feature: Added NanTryCatch 10f1ca4
– Feature: Update for V8 v4.3 4b6404a
– Feature: Introduce NanNewOneByteString c543d32
– Feature: Introduce namespace Nan 67ed1b1
– Removal: Remove NanLocker and NanUnlocker dd6e401
– Removal: Remove string converters, except NanUtf8String, which now follows the node implementation b5d00a9
– Removal: Remove NanReturn* macros d90a25c
– Removal: Remove HasInstance e8f84fe
### 1.9.0 Jul 31 2015
– Feature: Added `NanFatalException` 81d4a2c
– Feature: Added more error types 4265f06
– Feature: Added dereference and function call operators to NanCallback c4b2ed0
– Feature: Added indexed GetFromPersistent and SaveToPersistent edd510c
– Feature: Added more overloads of SaveToPersistent and GetFromPersistent 8b1cef6
– Feature: Added NanErrnoException dd87d9e
– Correctness: Prevent assign, copy, and move for classes that do not support it 1f55c59, 4b808cb, c96d9b2, fba4a29, 3357130
– Deprecation: Deprecate `NanGetPointerSafe` and `NanSetPointerSafe` 81d4a2c
– Deprecation: Deprecate `NanBooleanOptionValue` and `NanUInt32OptionValue` 0ad254b
### 1.8.4 Apr 26 2015
– Build: Repackage
### 1.8.3 Apr 26 2015
– Bugfix: Include missing header 1af8648
### 1.8.2 Apr 23 2015
– Build: Repackage
### 1.8.1 Apr 23 2015
– Bugfix: NanObjectWrapHandle should take a pointer 155f1d3
### 1.8.0 Apr 23 2015
– Feature: Allow primitives with NanReturnValue 2e4475e
– Feature: Added comparison operators to NanCallback 55b075e
– Feature: Backport thread local storage 15bb7fa
– Removal: Remove support for signatures with arguments 8a2069d
– Correcteness: Replaced NanObjectWrapHandle macro with function 0bc6d59
### 1.7.0 Feb 28 2015
– Feature: Made NanCallback::Call accept optional target 8d54da7
– Feature: Support atom-shell 0.21 0b7f1bb
### 1.6.2 Feb 6 2015
– Bugfix: NanEncode: fix argument type for node::Encode on io.js 2be8639
### 1.6.1 Jan 23 2015
– Build: version bump
### 1.5.3 Jan 23 2015
– Build: repackage
### 1.6.0 Jan 23 2015
– Deprecated `NanNewContextHandle` in favor of `NanNew
– Support utility functions moved in newer v8 versions (Node 0.11.15, io.js 1.0) a0aa179
– Added `NanEncode`, `NanDecodeBytes` and `NanDecodeWrite` 75e6fb9
### 1.5.2 Jan 23 2015
– Bugfix: Fix non-inline definition build error with clang++ 21d96a1, 60fadd4
– Bugfix: Readded missing String constructors 18d828f
– Bugfix: Add overload handling NanNew
– Bugfix: Fix uv_work_cb versioning 997e4ae
– Bugfix: Add function factory and test 4eca89c
– Bugfix: Add object template factory and test cdcb951
– Correctness: Lifted an io.js related typedef c9490be
– Correctness: Make explicit downcasts of String lengths 00074e6
– Windows: Limit the scope of disabled warning C4530 83d7deb
### 1.5.1 Jan 15 2015
– Build: version bump
### 1.4.3 Jan 15 2015
– Build: version bump
### 1.4.2 Jan 15 2015
– Feature: Support io.js 0dbc5e8
### 1.5.0 Jan 14 2015
– Feature: Support io.js b003843
– Correctness: Improved NanNew internals 9cd4f6a
– Feature: Implement progress to NanAsyncWorker 8d6a160
### 1.4.1 Nov 8 2014
– Bugfix: Handle DEBUG definition correctly
– Bugfix: Accept int as Boolean
### 1.4.0 Nov 1 2014
– Feature: Added NAN_GC_CALLBACK 6a5c245
– Performance: Removed unnecessary local handle creation 18a7243, 41fe2f8
– Correctness: Added constness to references in NanHasInstance 02c61cd
– Warnings: Fixed spurious warnings from -Wundef and -Wshadow, 541b122, 99d8cb6
– Windoze: Shut Visual Studio up when compiling 8d558c1
– License: Switch to plain MIT from custom hacked MIT license 11de983
– Build: Added test target to Makefile e232e46
– Performance: Removed superfluous scope in NanAsyncWorker f4b7821
– Sugar/Feature: Added NanReturnThis() and NanReturnHolder() shorthands 237a5ff, d697208
– Feature: Added suitable overload of NanNew for v8::Integer::NewFromUnsigned b27b450
### 1.3.0 Aug 2 2014
– Added NanNew
– Added NanNew
– Added NanAsciiString helper class
– Added NanUtf8String helper class
– Added NanUcs2String helper class
– Deprecated NanRawString()
– Deprecated NanCString()
– Added NanGetIsolateData(v8::Isolate *isolate)
– Added NanMakeCallback(v8::Handle
– Added NanMakeCallback(v8::Handle
– Added NanMakeCallback(v8::Handle
– Added NanSetTemplate(v8::Handle
– Added NanSetPrototypeTemplate(v8::Local
– Added NanSetInstanceTemplate(v8::Local
– Added NanSetInstanceTemplate(v8::Local
### 1.2.0 Jun 5 2014
– Add NanSetPrototypeTemplate
– Changed NAN_WEAK_CALLBACK internals, switched _NanWeakCallbackData to class,
introduced _NanWeakCallbackDispatcher
– Removed -Wno-unused-local-typedefs from test builds
– Made test builds Windows compatible (‘Sleep()’)
### 1.1.2 May 28 2014
– Release to fix more stuff-ups in 1.1.1
### 1.1.1 May 28 2014
– Release to fix version mismatch in nan.h and lack of changelog entry for 1.1.0
### 1.1.0 May 25 2014
– Remove nan_isolate, use v8::Isolate::GetCurrent() internally instead
– Additional explicit overloads for NanNew(): (char*,int), (uint8_t*[,int]),
(uint16_t*[,int), double, int, unsigned int, bool, v8::String::ExternalStringResource*,
v8::String::ExternalAsciiStringResource*
– Deprecate NanSymbol()
– Added SetErrorMessage() and ErrorMessage() to NanAsyncWorker
### 1.0.0 May 4 2014
– Heavy API changes for V8 3.25 / Node 0.11.13
– Use cpplint.py
– Removed NanInitPersistent
– Removed NanPersistentToLocal
– Removed NanFromV8String
– Removed NanMakeWeak
– Removed NanNewLocal
– Removed NAN_WEAK_CALLBACK_OBJECT
– Removed NAN_WEAK_CALLBACK_DATA
– Introduce NanNew, replaces NanNewLocal, NanPersistentToLocal, adds many overloaded typed versions
– Introduce NanUndefined, NanNull, NanTrue and NanFalse
– Introduce NanEscapableScope and NanEscapeScope
– Introduce NanMakeWeakPersistent (requires a special callback to work on both old and new node)
– Introduce NanMakeCallback for node::MakeCallback
– Introduce NanSetTemplate
– Introduce NanGetCurrentContext
– Introduce NanCompileScript and NanRunScript
– Introduce NanAdjustExternalMemory
– Introduce NanAddGCEpilogueCallback, NanAddGCPrologueCallback, NanRemoveGCEpilogueCallback, NanRemoveGCPrologueCallback
– Introduce NanGetHeapStatistics
– Rename NanAsyncWorker#SavePersistent() to SaveToPersistent()
### 0.8.0 Jan 9 2014
– NanDispose -> NanDisposePersistent, deprecate NanDispose
– Extract _NAN_*_RETURN_TYPE, pull up NAN_*()
### 0.7.1 Jan 9 2014
– Fixes to work against debug builds of Node
– Safer NanPersistentToLocal (avoid reinterpret_cast)
– Speed up common NanRawString case by only extracting flattened string when necessary
### 0.7.0 Dec 17 2013
– New no-arg form of NanCallback() constructor.
– NanCallback#Call takes Handle rather than Local
– Removed deprecated NanCallback#Run method, use NanCallback#Call instead
– Split off _NAN_*_ARGS_TYPE from _NAN_*_ARGS
– Restore (unofficial) Node 0.6 compatibility at NanCallback#Call()
– Introduce NanRawString() for char* (or appropriate void*) from v8::String
(replacement for NanFromV8String)
– Introduce NanCString() for null-terminated char* from v8::String
### 0.6.0 Nov 21 2013
– Introduce NanNewLocal
v8::Local
### 0.5.2 Nov 16 2013
– Convert SavePersistent and GetFromPersistent in NanAsyncWorker from protected and public
### 0.5.1 Nov 12 2013
– Use node::MakeCallback() instead of direct v8::Function::Call()
### 0.5.0 Nov 11 2013
– Added @TooTallNate as collaborator
– New, much simpler, “include_dirs” for binding.gyp
– Added full range of NAN_INDEX_* macros to match NAN_PROPERTY_* macros
### 0.4.4 Nov 2 2013
– Isolate argument from v8::Persistent::MakeWeak removed for 0.11.8+
### 0.4.3 Nov 2 2013
– Include node_object_wrap.h, removed from node.h for Node 0.11.8.
### 0.4.2 Nov 2 2013
– Handle deprecation of v8::Persistent::Dispose(v8::Isolate* isolate)) for
Node 0.11.8 release.
### 0.4.1 Sep 16 2013
– Added explicit `#include
### 0.4.0 Sep 2 2013
– Added NAN_INLINE and NAN_DEPRECATED and made use of them
– Added NanError, NanTypeError and NanRangeError
– Cleaned up code
### 0.3.2 Aug 30 2013
– Fix missing scope declaration in GetFromPersistent() and SaveToPersistent
in NanAsyncWorker
### 0.3.1 Aug 20 2013
– fix “not all control paths return a value” compile warning on some platforms
### 0.3.0 Aug 19 2013
– Made NAN work with NPM
– Lots of fixes to NanFromV8String, pulling in features from new Node core
– Changed node::encoding to Nan::Encoding in NanFromV8String to unify the API
– Added optional error number argument for NanThrowError()
– Added NanInitPersistent()
– Added NanReturnNull() and NanReturnEmptyString()
– Added NanLocker and NanUnlocker
– Added missing scopes
– Made sure to clear disposed Persistent handles
– Changed NanAsyncWorker to allocate error messages on the heap
– Changed NanThrowError(Local
– Fixed leak in NanAsyncWorker when errmsg is used
### 0.2.2 Aug 5 2013
– Fixed usage of undefined variable with node::BASE64 in NanFromV8String()
### 0.2.1 Aug 5 2013
– Fixed 0.8 breakage, node::BUFFER encoding type not available in 0.8 for
NanFromV8String()
### 0.2.0 Aug 5 2013
– Added NAN_PROPERTY_GETTER, NAN_PROPERTY_SETTER, NAN_PROPERTY_ENUMERATOR,
NAN_PROPERTY_DELETER, NAN_PROPERTY_QUERY
– Extracted _NAN_METHOD_ARGS, _NAN_GETTER_ARGS, _NAN_SETTER_ARGS,
_NAN_PROPERTY_GETTER_ARGS, _NAN_PROPERTY_SETTER_ARGS,
_NAN_PROPERTY_ENUMERATOR_ARGS, _NAN_PROPERTY_DELETER_ARGS,
_NAN_PROPERTY_QUERY_ARGS
– Added NanGetInternalFieldPointer, NanSetInternalFieldPointer
– Added NAN_WEAK_CALLBACK, NAN_WEAK_CALLBACK_OBJECT,
NAN_WEAK_CALLBACK_DATA, NanMakeWeak
– Renamed THROW_ERROR to _NAN_THROW_ERROR
– Added NanNewBufferHandle(char*, size_t, node::smalloc::FreeCallback, void*)
– Added NanBufferUse(char*, uint32_t)
– Added NanNewContextHandle(v8::ExtensionConfiguration*,
v8::Handle
– Fixed broken NanCallback#GetFunction()
– Added optional encoding and size arguments to NanFromV8String()
– Added NanGetPointerSafe() and NanSetPointerSafe()
– Added initial test suite (to be expanded)
– Allow NanUInt32OptionValue to convert any Number object
### 0.1.0 Jul 21 2013
– Added `NAN_GETTER`, `NAN_SETTER`
– Added `NanThrowError` with single Local
– Added `NanNewBufferHandle` with single uint32_t argument
– Added `NanHasInstance(Persistent
– Added `Local
– Added `NanCallback#Call(int, Local
– Deprecated `NanCallback#Run(int, Local