forked from nodejs/node-v0.x-archive
/
ChangeLog
1677 lines (940 loc) · 49.9 KB
/
ChangeLog
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
2010-05-05: Version 2.2.8
Performance improvements in the x64 and ARM backends.
2010-05-03: Version 2.2.7
Added support for ES5 date time string format to Date.parse.
Performance improvements in the x64 backend.
2010-04-28: Version 2.2.6
Added "amd64" as recognized architecture in scons build script
(by Ryan Dahl <coldredlemur@gmail.com>).
Fixed bug in String search and replace with very simple RegExps.
Fixed bug in RegExp containing "\b^".
Performance improvements on all platforms.
2010-04-26: Version 2.2.5
Various performance improvements (especially for ARM and x64)
Fixed bug in CPU profiling (http://crbug.com/42137)
Fixed a bug with the natives cache.
Fixed two bugs in the ARM code generator that can cause
wrong calculations.
Fixed a bug that may cause a wrong result for shift operations.
2010-04-21: Version 2.2.4
Fixed warnings on arm on newer GCC versions.
Fixed a number of minor bugs.
Performance improvements on all platforms.
2010-04-14: Version 2.2.3
Added stack command and mem command to ARM simulator debugger.
Fixed scons snapshot and ARM build, and Windows X64 build issues.
Performance improvements on all platforms.
2010-04-12: Version 2.2.2
Introduced new profiler API.
Fixed random number generator to produce full 32 random bits.
2010-04-06: Version 2.2.1
Debugger improvements.
Fixed minor bugs.
2010-03-29: Version 2.2.0
Fixed a few minor bugs.
Performance improvements for string operations.
2010-03-26: Version 2.1.10
Fixed scons build issues.
Fixed a couple of minor bugs.
2010-03-25: Version 2.1.9
Added API support for reattaching a global object to a context.
Extended debugger API with access to the internal debugger context.
Fixed Chromium crashes (issues http://crbug.com/39128 and
http://crbug.com/39160)
2010-03-24: Version 2.1.8
Added fine-grained garbage collection callbacks to the API.
Performance improvements on all platforms.
2010-03-22: Version 2.1.7
Fixed issue 650.
Fixed a bug where __proto__ was sometimes enumerated (issue 646).
Performance improvements for arithmetic operations.
Performance improvements for string operations.
Print script name and line number information in stack trace.
2010-03-17: Version 2.1.6
Performance improvements for arithmetic operations.
Performance improvements for string operations.
2010-03-10: Version 2.1.4
Fixed code cache lookup for keyed IC's (issue http://crbug.com/37853).
Performance improvements on all platforms.
2010-03-10: Version 2.1.3
Added API method for context-disposal notifications.
Added API method for accessing elements by integer index.
Added missing implementation of Uint32::Value and Value::IsUint32
API methods.
Added IsExecutionTerminating API method.
Disabled strict aliasing for GCC 4.4.
Fixed string-concatenation bug (issue 636).
Performance improvements on all platforms.
2010-02-23: Version 2.1.2
Fix a crash bug caused by wrong assert.
Fix a bug with register names on 64-bit V8 (issue 615).
Performance improvements on all platforms.
2010-02-19: Version 2.1.1
[ES5] Implemented Object.defineProperty.
Improved profiler support.
Added SetPrototype method in the public V8 API.
Added GetScriptOrigin and GetScriptLineNumber methods to Function
objects in the API.
Performance improvements on all platforms.
2010-02-03: Version 2.1.0
Values are now always wrapped in objects when used as a receiver.
(issue 223).
[ES5] Implemented Object.getOwnPropertyNames.
[ES5] Restrict JSON.parse to only accept strings that conforms to the
JSON grammar.
Improvement of debugger agent (issue 549 and 554).
Fixed problem with skipped stack frame in profiles (issue 553).
Solaris support by Erich Ocean <erich.ocean@me.com> and Ryan Dahl
<ry@tinyclouds.org>.
Fix a bug that Math.round() returns incorrect results for huge
integers.
Fix enumeration order for objects created from some constructor
functions (isue http://crbug.com/3867).
Fix arithmetic on some integer constants (issue 580).
Numerous performance improvements including porting of previous IA-32
optimizations to x64 and ARM architectures.
2010-01-14: Version 2.0.6
Added ES5 Object.getPrototypeOf, GetOwnPropertyDescriptor,
GetOwnProperty, FromPropertyDescriptor.
Fixed Mac x64 build errors.
Improved performance of some math and string operations.
Improved performance of some regexp operations.
Improved performance of context creation.
Improved performance of hash tables.
2009-12-18: Version 2.0.5
Extended to upper limit of map space to allow for 7 times as many map
to be allocated (issue 524).
Improved performance of code using closures.
Improved performance of some binary operations involving doubles.
2009-12-16: Version 2.0.4
Added ECMAScript 5 Object.create.
Improved performance of Math.max and Math.min.
Optimized adding of strings on 64-bit platforms.
Improved handling of external strings by using a separate table
instead of weak handles. This improves garbage collection
performance and uses less memory.
Changed code generation for object and array literals in toplevel
code to be more compact by doing more work in the runtime.
Fixed a crash bug triggered when garbage collection happened during
generation of a callback load inline cache stub.
Fixed crash bug sometimes triggered when local variables shadowed
parameters in functions that used the arguments object.
2009-12-03: Version 2.0.3
Optimized handling and adding of strings, for-in and Array.join.
Heap serialization is now non-destructive.
Improved profiler support with information on time spend in C++
callbacks registered through the API.
Added commands to the debugger protocol for starting/stopping
profiling.
Enabled the non-optimizing compiler for top-level code.
Changed the API to only allow strings to be set as data objects on
Contexts and scripts to avoid potentially keeping global objects
around for too long (issue 528).
OpenBSD support patch by Peter Valchev <pvalchev@gmail.com>.
Fixed bugs.
2009-11-24: Version 2.0.2
Improved profiler support.
Fixed bug that broke compilation of d8 with readline support.
2009-11-20: Version 2.0.1
Fixed crash bug in String.prototype.replace.
Reverted a change which caused Chromium interactive ui test
failures.
2009-11-18: Version 2.0.0
Added support for VFP on ARM.
Added TryCatch::ReThrow method to the API.
Reduced the size of snapshots and improved the snapshot load time.
Improved heap profiler support.
64-bit version now supported on Windows.
Fixed a number of debugger issues.
Fixed bugs.
2009-10-29: Version 1.3.18
Reverted a change which caused crashes in RegExp replace.
Reverted a change which caused Chromium ui_tests failure.
2009-10-28: Version 1.3.17
Added API method to get simple heap statistics.
Improved heap profiler support.
Fixed the implementation of the resource constraint API so it
works when using snapshots.
Fixed a number of issues in the Windows 64-bit version.
Optimized calls to API getters.
Added valgrind notification on code modification to the 64-bit version.
Fixed issue where we logged shared library addresses on Windows at
startup and never used them.
2009-10-16: Version 1.3.16
X64: Convert smis to holding 32 bits of payload.
Introduce v8::Integer::NewFromUnsigned method.
Add missing null check in Context::GetCurrent.
Add trim, trimLeft and trimRight methods to String
Patch by Jan de Mooij <jandemooij@gmail.com>
Implement ES5 Array.isArray
Patch by Jan de Mooij <jandemooij@gmail.com>
Skip access checks for hidden properties.
Add String::Concat(Handle<String> left, Handle<String> right) to the V8 API.
Fix GYP-based builds of V8.
2009-10-07: Version 1.3.15
Expand the maximum size of the code space to 512MB for 64-bit mode.
Fixed a crash bug happening when starting profiling (issue
http://crbug.com/23768).
2009-10-07: Version 1.3.14
Added GetRealNamedProperty to the API to lookup real properties
located on the object or in the prototype chain skipping any
interceptors.
Fix the stack limits setting API to work correctly with threads. The
stack limit now needs to be set to each thread thich is used with V8.
Remove the high-priority flag from IdleNotification()
Ensure V8 is initialized before locking and unlocking threads.
Implemented a new JavaScript minifier for compressing the source of
the built-in JavaScript. This removes non-Open Source code from Douglas
Crockford from the project.
Added a missing optimization in StringCharAt.
Fixed some flaky socket tests.
Change by Alexander Botero-Lowry to fix profiler sampling on FreeBSD
in 64-bit mode.
Fixed memory leaks in the thread management code.
Fixed the result of assignment to a pixel array. The assigned value
is now the result.
Error reporting for invalid left-hand sides in for-in statements, pre-
and postfix count expressions, and assignments now matches the JSC
behavior in Safari 4.
Follow the spec in disallowing function declarations without a name.
Always allocate code objects within a 2 GB range. On x64 architecture
this is used to use near calls (32-bit displacement) in Code objects.
Optimized array construction ported to x64 and ARM architectures.
[ES5] Changed Object.keys to return strings for element indices.
2009-09-23: Version 1.3.13
Fixed uninitialized memory problem.
Improved heap profiler support.
2009-09-22: Version 1.3.12
Changed behavior of |function|.toString() on built-in functions to
be compatible with other implementations. Patch by Jan de Mooij.
Added Object::IsDirty in the API.
Optimized array construction; it is now handled purely in native
code.
[ES5] Made properties of the arguments array enumerable.
[ES5] Added test suite adapter for the es5conform test suite.
[ES5] Added Object.keys function.
2009-09-15: Version 1.3.11
Fixed crash in error reporting during bootstrapping.
Optimized generated IA32 math code by using SSE2 instructions when
available.
Implemented missing pieces of debugger infrastructure on ARM. The
debugger is now fully functional on ARM.
Make 'hidden' the default visibility for gcc.
2009-09-09: Version 1.3.10
Fixed profiler on Mac in 64-bit mode.
Optimized creation of objects from simple constructor functions on
ARM.
Fixed a number of debugger issues.
Reduced the amount of memory consumed by V8.
2009-09-02: Version 1.3.9
Optimized stack guard checks on ARM.
Optimized API operations by inlining more in the API.
Optimized creation of objects from simple constructor functions.
Enabled a number of missing optimizations in the 64-bit port.
Implemented native-code support for regular expressions on ARM.
Stopped using the 'sahf' instruction on 64-bit machines that do
not support it.
Fixed a bug in the support for forceful termination of JavaScript
execution.
2009-08-26: Version 1.3.8
Changed the handling of idle notifications to allow idle
notifications when V8 has not yet been initialized.
Fixed ARM simulator compilation problem on Windows.
2009-08-25: Version 1.3.7
Reduced the size of generated code on ARM platforms by reducing
the size of constant pools.
Changed build files to not include the 'ENV' user environment
variable in the build environment.
Changed the handling of idle notifications.
2009-08-21: Version 1.3.6
Add support for forceful termination of JavaScript execution.
Add low memory notification to the API. The embedding host can signal
a low memory situation to V8.
Changed the handling of global handles (persistent handles in the API
sense) to avoid issues regarding allocation of new global handles
during weak handle callbacks.
Changed the growth policy of the young space.
Fixed a GC issue introduced in version 1.3.5.
2009-08-19: Version 1.3.5
Optimize initialization of some arrays in the builtins.
Fix mac-nm script to support filenames with spaces.
Support for using the V8 profiler when V8 is embedded in a Windows DLL.
Changed typeof RegExp from 'object' to 'function' for compatibility.
Fixed bug where regexps were not callable across contexts.
Added context independent script compilation to the API.
Added API call to get the stack trace for an exception.
Added API for getting object mirrors.
Make sure that SSE3 instructions are used whenever possible even when
running off a snapshot generated without using SSE3 instructions.
Tweaked the handling of the initial size and growth policy of the heap.
Added native code generation for RegExp to 64-bit version.
Added JavaScript debugger support to 64-bit version.
2009-08-13: Version 1.3.4
Added a readline() command to the d8 shell.
Fixed bug in json parsing.
Added idle notification to the API and reduced memory on idle
notifications.
2009-08-12: Version 1.3.3
Fix issue 417: incorrect %t placeholder expansion.
Add .gitignore file similar to Chromium's one.
Fix SConstruct file to build with new logging code for Android.
API: added function to find instance of template in prototype
chain. Inlined Object::IsInstanceOf.
Land change to notify valgrind when we modify code on x86.
Add api call to determine whether a string can be externalized.
Add a write() command to d8.
2009-08-05: Version 1.3.2
Started new compiler infrastructure for two-pass compilation using a
control flow graph constructed from the AST.
Profiler stack sampling for X64.
Safe handling of NaN to Posix platform-dependent time functions.
Added a new profiler control API to unify controlling various aspects
of profiling.
Fixed issue 392.
2009-07-30: Version 1.3.1
Speed improvements to accessors and interceptors.
Added support for capturing stack information on custom errors.
Added support for morphing an object into a pixel array where its
indexed properties are stored in an external byte array. Values written
are always clamped to the 0..255 interval.
Profiler on x64 now handles C/C++ functions from shared libraries.
Changed the debugger to avoid stepping into function.call/apply if the
function is a built-in.
Initial implementation of constructor heap profile for JS objects.
More fine grained control of profiling aspects through the API.
Optimized the called as constructor check for API calls.
2009-07-27: Version 1.3.0
Allowed RegExp objects to be called as functions (issue 132).
Fixed issue where global property cells would escape after
detaching the global object; see http://crbug.com/16276.
Added support for stepping into setters and getters in the
debugger.
Changed the debugger to avoid stopping in its own JavaScript code
and in the code of built-in functions.
Fixed issue 345 by avoiding duplicate escaping labels.
Fixed ARM code generator crash in short-circuited boolean
expressions and added regression tests.
Added an external allocation limit to avoid issues where small V8
objects would hold on to large amounts of external memory without
causing garbage collections.
Finished more of the inline caching stubs for x64 targets.
2009-07-13: Version 1.2.14
Added separate paged heap space for global property cells and
avoid updating the write barrier when storing into them.
Improved peep-hole optimization on ARM platforms by not emitting
unnecessary debug information.
Re-enabled ICs for loads and calls that skip a global object
during lookup through the prototype chain.
Allowed access through global proxies to use ICs.
Fixed issue 401.
2009-07-09: Version 1.2.13
Fixed issue 397, issue 398, and issue 399.
Added support for breakpoint groups.
Fixed bugs introduced with the new global object representation.
Fixed a few bugs in the ARM code generator.
2009-07-06: Version 1.2.12
Added stack traces collection to Error objects accessible through
the e.stack property.
Changed RegExp parser to use a recursive data structure instead of
stack-based recursion.
Optimized Date object construction and string concatenation.
Improved performance of div, mod, and mul on ARM platforms.
2009-07-02: Version 1.2.11
Improved performance on IA-32 and ARM.
Fixed profiler sampler implementation on Mac OS X.
Changed the representation of global objects to improve
performance of adding a lot of new properties.
2009-06-29: Version 1.2.10
Improved debugger support.
Fixed bug in exception message reporting (issue 390).
Improved overall performance.
2009-06-23: Version 1.2.9
Improved math performance on ARM.
Fixed profiler name-inference bug.
Fixed handling of shared libraries in the profiler tick processor
scripts.
Fixed handling of tests that time out in the test scripts.
Fixed compilation on MacOS X version 10.4.
Fixed two bugs in the regular expression engine.
Fixed a bug in the string type inference.
Fixed a bug in the handling of 'constant function' properties.
Improved overall performance.
2009-06-16: Version 1.2.8
Optimized math on ARM platforms.
Fixed two crash bugs in the handling of getters and setters.
Improved the debugger support by adding scope chain information.
Improved the profiler support by compressing log data transmitted
to clients.
Improved overall performance.
2009-06-08: Version 1.2.7
Improved debugger and profiler support.
Reduced compilation time by improving the handling of deferred
code.
Optimized interceptor accesses where the property is on the object
on which the interceptors is attached.
Fixed compilation problem on GCC 4.4 by changing the stack
alignment to 16 bytes.
Fixed handle creation to follow stric aliasing rules.
Fixed compilation on FreeBSD.
Introduced API for forcing the deletion of a property ignoring
interceptors and attributes.
2009-05-29: Version 1.2.6
Added a histogram recording hit rates at different levels of the
compilation cache.
Added stack overflow check for the RegExp analysis phase. Previously a
very long regexp graph could overflow the stack with recursive calls.
Use a dynamic buffer when collecting log events in memory.
Added start/stop events to the profiler log.
Fixed infinite loop which could happen when setting a debug break while
executing a RegExp compiled to native code.
Fixed handling of lastIndexOf called with negative index (issue 351).
Fixed irregular crash in profiler test (issue 358).
Fixed compilation issues with some versions of gcc.
2009-05-26: Version 1.2.5
Fixed bug in initial boundary check for Boyer-Moore text
search (issue 349).
Fixed compilation issues with MinGW and gcc 4.3+ and added support
for armv7 and cortex-a8 architectures. Patches by Lei Zhang and
Craig Schlenter.
Added a script cache to the debugger.
Optimized compilation performance by improving internal data
structures and avoiding expensive property load optimizations for
code that's infrequently executed.
Exposed the calling JavaScript context through the static API
function Context::GetCalling().
2009-05-18: Version 1.2.4
Improved performance of floating point number allocation for ARM
platforms.
Fixed crash when using the instanceof operator on functions with
number values in their prototype chain (issue 341).
Optimized virtual frame operations in the code generator to speed
up compilation time and allocated the frames in the zone.
Made the representation of virtual frames and jump targets in the
code generator much more compact.
Avoided linear search for non-locals in scope code when resolving
variables inside with and eval scopes.
Optimized lexical scanner by dealing with whitespace as part of
the token scanning instead of as a separate step before it.
Changed the scavenging collector so that promoted objects do not
reside in the old generation while their remembered set is being
swept for pointers into the young generation.
Fixed numeric overflow handling when compiling count operations.
2009-05-11: Version 1.2.3
Fixed bug in reporting of out-of-memory situations.
Introduced hidden prototypes on certain builtin prototype objects
such as String.prototype to emulate JSC's behavior of restoring
the original function when deleting functions from those prototype
objects.
Fixed crash bug in the register allocator.
2009-05-04: Version 1.2.2
Fixed bug in array sorting for sparse arrays (issue 326).
Added support for adding a soname when building a shared library
on Linux (issue 151).
Fixed bug caused by morphing internal ASCII strings to external
two-byte strings. Slices over ASCII strings have to forward ASCII
checks to the underlying buffer string.
Allowed API call-as-function handlers to be called as
constructors.
Fixed a crash bug where an external string was disposed but a
slice of the external string survived as a symbol.
2009-04-27: Version 1.2.1
Added EcmaScript 5 JSON object.
Fix bug in preemption support on ARM.
2009-04-23: Version 1.2.0
Optimized floating-point operations on ARM.
Added a number of extensions to the debugger API.
Changed the enumeration order for unsigned integer keys to always
be numerical order.
Added a "read" extension to the shell sample.
Added support for Array.prototype.reduce and
Array.prototype.reduceRight.
Added an option to the SCons build to control Microsoft Visual C++
link-time code generation.
Fixed a number of bugs (in particular issue 315, issue 316,
issue 317 and issue 318).
2009-04-15: Version 1.1.10
Fixed crash bug that occurred when loading a const variable in the
presence of eval.
Allowed using with and eval in registered extensions in debug mode
by fixing bogus assert.
Fixed the source position for function returns to enable the
debugger to break there.
2009-04-14: Version 1.1.9
Made the stack traversal code in the profiler robust by avoiding
to look into the heap.
Added name inferencing for anonymous functions to facilitate
debugging and profiling.
Re-enabled stats timers in the developer shell (d8).
Fixed issue 303 by avoiding to shortcut cons-symbols.
2009-04-11: Version 1.1.8
Changed test-debug/ThreadedDebugging to be non-flaky (issue 96).
Fixed step-in handling for Function.prototype.apply and call in
the debugger (issue 269).
Fixed v8::Object::DeleteHiddenValue to not bail out when there
are no hidden properties.
Added workaround for crash bug, where external symbol table
entries with deleted resources would lead to NPEs when looking
up in the symbol table.
2009-04-07: Version 1.1.7
Added support for easily importing additional environment
variables into the SCons build.
Optimized strict equality checks.
Fixed crash in indexed setters on objects without a corresponding
getter (issue 298).
Re-enabled script compilation cache.
2009-04-01: Version 1.1.6
Reverted an unsafe code generator change.
2009-04-01: Version 1.1.5
Fixed bug that caused function literals to not be optimized as
much as other functions.
Improved profiler support.
Fixed a crash bug in connection with debugger unloading.
Fixed a crash bug in the code generator caused by losing the
information that a frame element was copied.
Fixed an exception propagation bug that could cause non-null
return values when exceptions were thrown.
2009-03-30: Version 1.1.4
Optimized String.prototype.match.
Improved the stack information in profiles.
Fixed bug in ARM port making it possible to compile the runtime
system for thumb mode again.
Implemented a number of optimizations in the code generator.
Fixed a number of memory leaks in tests.
Fixed crash bug in connection with script source code and external
strings.
2009-03-24: Version 1.1.3
Fixed assertion failures in compilation of loop conditions.
Removed STL dependency from developer shell (d8).
Added infrastructure for protecting the V8 heap from corruption
caused by memory modifications from the outside.
2009-03-24: Version 1.1.2
Improved frame merge code generated by the code generator.
Optimized String.prototype.replace.
Implemented __defineGetter__ and __defineSetter__ for properties
with integer keys on non-array objects.
Improved debugger and profiler support.
Fixed a number of portability issues to allow compilation for
smaller ARM devices.
Exposed object cloning through the API.
Implemented hidden properties. This is used to expose an identity
hash for objects through the API.
Implemented restarting of regular expressions if their input
string changes representation during preemption.
Fixed a code generator bug that could cause assignments in loops
to be ignored if using continue to break out of the loop (issue
284).
2009-03-12: Version 1.1.1
Fixed an assertion in the new compiler to take stack overflow
exceptions into account.
Removed exception propagation code that could cause crashes.
Fixed minor bug in debugger line number computations.
8-byte align the C stack on Linux and Windows to speed up floating
point computations.