blob: 66fb731dfb142df73c3ed1eeaded92b5e02d3c86 [file] [log] [blame]
Kristian Monsen0d5e1162010-09-30 15:31:59 +010012010-09-27: Version 2.4.6
2 Fixed assertion failure related to copy-on-write arrays (issue 876).
3
4 Fixed build failure of 64-bit V8 on Windows.
5
6 Fixed a bug in RegExp (issue http://crbug.com/52801).
7
8 Improved the profiler's coverage to cover more functions (issue 858).
9
10 Fixed error in shift operators on 64-bit V8
11 (issue http://crbug.com/54521).
12
13
142010-09-22: Version 2.4.5
15 Changed the RegExp benchmark to exercise the regexp engine on different
16 inputs by scrambling the input strings.
17
18 Fixed a bug in keyed loads on strings.
19
20 Fixed a bug with loading global function prototypes.
21
22 Fixed a bug with profiling RegExp calls (issue http://crbug.com/55999).
23
24 Performance improvements on all platforms.
25
26
272010-09-15: Version 2.4.4
28
29 Fixed bug with hangs on very large sparse arrays.
30
31 Now tries harder to free up memory when running out of space.
32
33 Added heap snapshots to JSON format to API.
34
35 Recalibrated benchmarks.
36
37
Steve Block59151502010-09-22 15:07:15 +0100382010-09-13: Version 2.4.3
39
40 Made Date.parse properly handle TZ offsets (issue 857).
41
42 Performance improvements on all platforms.
43
44
Iain Merrick9ac36c92010-09-13 15:29:50 +0100452010-09-08: Version 2.4.2
46
47 Fixed GC crash bug.
48
49 Fixed stack corruption bug.
50
51 Fixed compilation for newer C++ compilers that found Operand(0)
52 ambiguous.
53
54
552010-09-06: Version 2.4.1
56
57 Added the ability for an embedding application to receive a callback
58 when V8 allocates (V8::AddMemoryAllocationCallback) or deallocates
59 (V8::RemoveMemoryAllocationCallback) from the OS.
60
61 Fixed several JSON bugs (including issue 855).
62
63 Fixed memory overrun crash bug triggered during V8's tick-based
64 profiling.
65
66 Performance improvements on all platforms.
67
68
Kristian Monsen80d68ea2010-09-08 11:05:35 +0100692010-09-01: Version 2.4.0
70
Kristian Monsen0d5e1162010-09-30 15:31:59 +010071 Fixed bug in Object.freeze and Object.seal when Array.prototype or
72 Object.prototype are changed (issue 842).
Kristian Monsen80d68ea2010-09-08 11:05:35 +010073
Kristian Monsen0d5e1162010-09-30 15:31:59 +010074 Updated Array.splice to follow Safari and Firefox when called
Iain Merrick9ac36c92010-09-13 15:29:50 +010075 with zero arguments.
Kristian Monsen80d68ea2010-09-08 11:05:35 +010076
Kristian Monsen0d5e1162010-09-30 15:31:59 +010077 Fixed a missing live register when breaking at keyed loads on ARM.
Kristian Monsen80d68ea2010-09-08 11:05:35 +010078
Iain Merrick9ac36c92010-09-13 15:29:50 +010079 Performance improvements on all platforms.
Kristian Monsen80d68ea2010-09-08 11:05:35 +010080
81
822010-08-25: Version 2.3.11
83
Kristian Monsen0d5e1162010-09-30 15:31:59 +010084 Fixed bug in RegExp related to copy-on-write arrays.
Kristian Monsen80d68ea2010-09-08 11:05:35 +010085
Kristian Monsen0d5e1162010-09-30 15:31:59 +010086 Refactored tools/test.py script, including the introduction of
Iain Merrick9ac36c92010-09-13 15:29:50 +010087 VARIANT_FLAGS that allows specification of sets of flags with which
88 all tests should be run.
Kristian Monsen80d68ea2010-09-08 11:05:35 +010089
Kristian Monsen0d5e1162010-09-30 15:31:59 +010090 Fixed a bug in the handling of debug breaks in CallIC.
Kristian Monsen80d68ea2010-09-08 11:05:35 +010091
Iain Merrick9ac36c92010-09-13 15:29:50 +010092 Performance improvements on all platforms.
Kristian Monsen80d68ea2010-09-08 11:05:35 +010093
94
Steve Block791712a2010-08-27 10:21:07 +0100952010-08-23: Version 2.3.10
96
Kristian Monsen0d5e1162010-09-30 15:31:59 +010097 Fixed bug in bitops on ARM.
Steve Block791712a2010-08-27 10:21:07 +010098
99 Build fixes for unusual compilers.
100
101 Track high water mark for RWX memory.
102
103 Performance improvements on all platforms.
104
105
Iain Merrick75681382010-08-19 15:07:18 +01001062010-08-18: Version 2.3.9
107
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100108 Fixed compilation for ARMv4 on OpenBSD/FreeBSD.
Iain Merrick75681382010-08-19 15:07:18 +0100109
110 Removed specialized handling of GCC 4.4 (issue 830).
111
Iain Merrick9ac36c92010-09-13 15:29:50 +0100112 Fixed DST cache to take into account the suspension of DST in
Iain Merrick75681382010-08-19 15:07:18 +0100113 Egypt during the 2010 Ramadan (issue http://crbug.com/51855).
114
Kristian Monsen80d68ea2010-09-08 11:05:35 +0100115 Performance improvements on all platforms.
Iain Merrick75681382010-08-19 15:07:18 +0100116
117
1182010-08-16: Version 2.3.8
119
120 Fixed build with strict aliasing on GCC 4.4 (issue 463).
121
122 Fixed issue with incorrect handling of custom valueOf methods on
123 string wrappers (issue 760).
124
125 Fixed compilation for ARMv4 (issue 590).
126
127 Improved performance.
128
129
1302010-08-11: Version 2.3.7
131
132 Reduced size of heap snapshots produced by heap profiler (issue 783).
133
134 Introduced v8::Value::IsRegExp method.
135
136 Fixed CPU profiler crash in start / stop sequence when non-existent
137 name is passed (issue http://crbug.com/51594).
138
139 Introduced new indexed property query callbacks API (issue 816). This
140 API is guarded by USE_NEW_QUERY_CALLBACK define and is disabled
141 by default.
142
143 Removed support for object literal get/set with number/string
144 property name.
145
146 Fixed handling of JSObject::elements in CalculateNetworkSize
147 (issue 822).
148
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100149 Allowed compiling with strict aliasing enabled on GCC 4.4 (issue 463).
Iain Merrick75681382010-08-19 15:07:18 +0100150
151
Ben Murdochbb769b22010-08-11 14:56:33 +01001522010-08-09: Version 2.3.6
153
Iain Merrick75681382010-08-19 15:07:18 +0100154 RegExp literals create a new object every time they are evaluated
155 (issue 704).
Ben Murdochbb769b22010-08-11 14:56:33 +0100156
Iain Merrick75681382010-08-19 15:07:18 +0100157 Object.seal and Object.freeze return the modified object (issue 809).
Ben Murdochbb769b22010-08-11 14:56:33 +0100158
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100159 Fixed building using GCC 4.4.4.
Ben Murdochbb769b22010-08-11 14:56:33 +0100160
161
1622010-08-04: Version 2.3.5
163
164 Added support for ES5 property names. Object initialisers and
165 dot-notation property access now allows keywords. Also allowed
166 non-identifiers after "get" or "set" in an object initialiser.
167
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100168 Randomized the addresses of allocated executable memory on Windows.
Ben Murdochbb769b22010-08-11 14:56:33 +0100169
170
1712010-08-02: Version 2.3.4
172
173 Fixed problems in implementation of ES5 function.prototype.bind.
174
175 Fixed error when using apply with arguments object on ARM (issue 784).
176
177 Added setting of global flags to debugger protocol.
178
179 Fixed an error affecting cached results of sin and cos (issue 792).
180
181 Removed memory leak from a boundary case where V8 is not initialized.
182
183 Fixed issue where debugger could set breakpoints outside the body
184 of a function.
185
186 Fixed issue in debugger when using both live edit and step in features.
187
188 Added Number-letter (Nl) category to Unicode tables. These characters
189 can now be used in identifiers.
190
191 Fixed an assert failure on X64 (issue 806).
192
193 Performance improvements on all platforms.
194
195
Kristian Monsen50ef84f2010-07-29 15:18:00 +01001962010-07-26: Version 2.3.3
197
198 Fixed error when building the d8 shell in a fresh checkout.
199
200 Implemented Function.prototype.bind (ES5 15.3.4.5).
201
202 Fixed an error in inlined stores on ia32.
203
204 Fixed an error when setting a breakpoint at the end of a function
205 that does not end with a newline character.
206
207 Performance improvements on all platforms.
208
209
2102010-07-21: Version 2.3.2
211
212 Fixed compiler warnings when building with LLVM.
213
214 Fixed a bug with for-in applied to strings (issue 785).
215
216 Performance improvements on all platforms.
217
218
Ben Murdoch3bec4d22010-07-22 14:51:16 +01002192010-07-19: Version 2.3.1
220
221 Fixed compilation and linking with V8_INTERPRETED_REGEXP flag.
222
223 Fixed bug related to code flushing while compiling a lazy
224 compilable function (issue http://crbug.com/49099).
225
226 Performance improvements on all platforms.
227
228
2292010-07-15: Version 2.3.0
230
231 Added ES5 Object.seal and Object.isSealed.
232
233 Added debugger API for scheduling debugger commands from a
234 separate thread.
235
236
2372010-07-14: Version 2.2.24
238
239 Added API for capturing stack traces for uncaught exceptions.
240
241 Fixed crash bug when preparsing from a non-external V8 string
242 (issue 775).
243
244 Fixed JSON.parse bug causing input not to be converted to string
245 (issue 764).
246
247 Added ES5 Object.freeze and Object.isFrozen.
248
249 Performance improvements on all platforms.
250
251
Leon Clarkeac952652010-07-15 11:15:24 +01002522010-07-07: Version 2.2.23
253
254 API change: Convert Unicode code points outside the basic multilingual
255 plane to the replacement character. Previous behavior was to silently
256 truncate the value to 16 bits.
257
258 Fixed crash: handle all flat string types in regexp replace.
259
260 Prevent invalid pre-parsing data passed in through the API from
261 crashing V8.
262
263 Performance improvements on all platforms.
264
Ben Murdoch3bec4d22010-07-22 14:51:16 +0100265
Steve Block8defd9f2010-07-08 12:39:36 +01002662010-07-05: Version 2.2.22
267
268 Added ES5 Object.isExtensible and Object.preventExtensions.
269
270 Enabled building V8 as a DLL.
271
272 Fixed a bug in date code where -0 was not interpreted as 0
273 (issue 736).
274
275 Performance improvements on all platforms.
276
277
2782010-06-30: Version 2.2.21
279
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100280 Fixed bug in externalizing some ASCII strings (Chromium issue 47824).
Steve Block8defd9f2010-07-08 12:39:36 +0100281
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100282 Updated JSON.stringify to floor the space parameter (issue 753).
Steve Block8defd9f2010-07-08 12:39:36 +0100283
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100284 Updated the Mozilla test expectations to the newest version.
Steve Block8defd9f2010-07-08 12:39:36 +0100285
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100286 Updated the ES5 Conformance Test expectations to the latest version.
Steve Block8defd9f2010-07-08 12:39:36 +0100287
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100288 Updated the V8 benchmark suite.
Steve Block8defd9f2010-07-08 12:39:36 +0100289
290 Provide actual breakpoints locations in response to setBreakpoint
291 and listBreakpoints requests.
292
293
2942010-06-28: Version 2.2.20
295
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100296 Fixed bug with for-in on x64 platform (issue 748).
Steve Block8defd9f2010-07-08 12:39:36 +0100297
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100298 Fixed crash bug on x64 platform (issue 756).
Steve Block8defd9f2010-07-08 12:39:36 +0100299
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100300 Fixed bug in Object.getOwnPropertyNames. (chromium issue 41243).
Steve Block8defd9f2010-07-08 12:39:36 +0100301
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100302 Fixed a bug on ARM that caused the result of 1 << x to be
Steve Block8defd9f2010-07-08 12:39:36 +0100303 miscalculated for some inputs.
304
305 Performance improvements on all platforms.
306
307
Kristian Monsen9dcf7e22010-06-28 14:14:28 +01003082010-06-23: Version 2.2.19
309
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100310 Fixed bug that causes the build to break when profillingsupport=off
Kristian Monsen9dcf7e22010-06-28 14:14:28 +0100311 (issue 738).
312
313 Added expose-externalize-string flag for testing extensions.
314
315 Resolve linker issues with using V8 as a DLL causing a number of
316 problems with unresolved symbols.
317
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100318 Fixed build failure for cctests when ENABLE_DEBUGGER_SUPPORT is not
Kristian Monsen9dcf7e22010-06-28 14:14:28 +0100319 defined.
320
321 Performance improvements on all platforms.
322
323
3242010-06-16: Version 2.2.18
325
326 Added API functions to retrieve information on indexed properties
327 managed by the embedding layer. Fixes bug 737.
328
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100329 Made ES5 Object.defineProperty support array elements. Fixes bug 619.
Kristian Monsen9dcf7e22010-06-28 14:14:28 +0100330
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100331 Added heap profiling to the API.
Kristian Monsen9dcf7e22010-06-28 14:14:28 +0100332
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100333 Removed old named property query from the API.
Kristian Monsen9dcf7e22010-06-28 14:14:28 +0100334
335 Incremental performance improvements.
336
337
Ben Murdoch7f4d5bd2010-06-15 11:15:29 +01003382010-06-14: Version 2.2.17
339
340 Improved debugger support for stepping out of functions.
341
342 Incremental performance improvements.
343
344
3452010-06-09: Version 2.2.16
346
Steve Block8defd9f2010-07-08 12:39:36 +0100347 Removed the SetExternalStringDiposeCallback API. Changed the
Ben Murdoch7f4d5bd2010-06-15 11:15:29 +0100348 disposal of external string resources to call a virtual Dispose
349 method on the resource.
350
Steve Block8defd9f2010-07-08 12:39:36 +0100351 Added support for more precise break points when debugging and
Ben Murdoch7f4d5bd2010-06-15 11:15:29 +0100352 stepping.
353
354 Memory usage improvements on all platforms.
355
356
3572010-06-07: Version 2.2.15
358
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100359 Added an API to control the disposal of external string resources.
Ben Murdoch7f4d5bd2010-06-15 11:15:29 +0100360
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100361 Added missing initialization of a couple of variables which makes
Ben Murdoch7f4d5bd2010-06-15 11:15:29 +0100362 some compilers complaint when compiling with -Werror.
363
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100364 Improved performance on all platforms.
Ben Murdoch7f4d5bd2010-06-15 11:15:29 +0100365
366
3672010-06-02: Version 2.2.14
368
369 Fixed a crash in code generated for String.charCodeAt.
370
371 Fixed a compilation issue with some GCC versions (issue 727).
372
373 Performance optimizations on x64 and ARM platforms.
374
375
3762010-05-31: Version 2.2.13
377
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100378 Implemented Object.getOwnPropertyDescriptor for element indices and
Ben Murdoch7f4d5bd2010-06-15 11:15:29 +0100379 strings (issue 599).
380
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100381 Fixed bug for windows 64 bit C calls from generated code.
Ben Murdoch7f4d5bd2010-06-15 11:15:29 +0100382
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100383 Added new scons flag unalignedaccesses for arm builds.
Ben Murdoch7f4d5bd2010-06-15 11:15:29 +0100384
385 Performance improvements on all platforms.
386
387
Leon Clarkef7060e22010-06-03 12:02:55 +01003882010-05-26: Version 2.2.12
389
390 Allowed accessors to be defined on objects rather than just object
391 templates.
392
393 Changed the ScriptData API.
394
395
3962010-05-21: Version 2.2.11
397
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100398 Fixed crash bug in liveedit on 64 bit.
Leon Clarkef7060e22010-06-03 12:02:55 +0100399
400 Use 'full compiler' when debugging is active. This should increase
401 the density of possible break points, making single step more fine
402 grained. This will only take effect for functions compiled after
403 debugging has been started, so recompilation of all functions is
404 required to get the full effect. IA32 and x64 only for now.
405
406 Misc. fixes to the Solaris build.
407
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100408 Added new flags --print-cumulative-gc-stat and --trace-gc-nvp.
Leon Clarkef7060e22010-06-03 12:02:55 +0100409
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100410 Added filtering of CPU profiles by security context.
Leon Clarkef7060e22010-06-03 12:02:55 +0100411
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100412 Fixed crash bug on ARM when running without VFP2 or VFP3.
Leon Clarkef7060e22010-06-03 12:02:55 +0100413
414 Incremental performance improvements in all backends.
415
416
Kristian Monsen25f61362010-05-21 11:50:48 +01004172010-05-17: Version 2.2.10
418
419 Performance improvements in the x64 and ARM backends.
420
421
4222010-05-10: Version 2.2.9
423
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100424 Allowed Object.create to be called with a function (issue 697).
Kristian Monsen25f61362010-05-21 11:50:48 +0100425
426 Fixed bug with Date.parse returning a non-NaN value when called on a
427 non date string (issue 696).
428
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100429 Allowed unaligned memory accesses on ARM targets that support it (by
Leon Clarkef7060e22010-06-03 12:02:55 +0100430 Subrato K De of CodeAurora <subratokde@codeaurora.org>).
Kristian Monsen25f61362010-05-21 11:50:48 +0100431
432 C++ API for retrieving JavaScript stack trace information.
433
434
Steve Block6ded16b2010-05-10 14:33:55 +01004352010-05-05: Version 2.2.8
436
437 Performance improvements in the x64 and ARM backends.
438
439
4402010-05-03: Version 2.2.7
441
442 Added support for ES5 date time string format to Date.parse.
443
444 Performance improvements in the x64 backend.
445
446
4472010-04-28: Version 2.2.6
448
449 Added "amd64" as recognized architecture in scons build script
450 (by Ryan Dahl <coldredlemur@gmail.com>).
451
452 Fixed bug in String search and replace with very simple RegExps.
453
454 Fixed bug in RegExp containing "\b^".
455
456 Performance improvements on all platforms.
457
458
4592010-04-26: Version 2.2.5
460
461 Various performance improvements (especially for ARM and x64)
462
463 Fixed bug in CPU profiling (http://crbug.com/42137)
464
465 Fixed a bug with the natives cache.
466
467 Fixed two bugs in the ARM code generator that can cause
468 wrong calculations.
469
470 Fixed a bug that may cause a wrong result for shift operations.
471
472
4732010-04-21: Version 2.2.4
474
475 Fixed warnings on arm on newer GCC versions.
476
477 Fixed a number of minor bugs.
478
479 Performance improvements on all platforms.
480
481
4822010-04-14: Version 2.2.3
483
484 Added stack command and mem command to ARM simulator debugger.
485
486 Fixed scons snapshot and ARM build, and Windows X64 build issues.
487
488 Performance improvements on all platforms.
489
490
4912010-04-12: Version 2.2.2
492
493 Introduced new profiler API.
494
495 Fixed random number generator to produce full 32 random bits.
496
497
4982010-04-06: Version 2.2.1
499
500 Debugger improvements.
501
502 Fixed minor bugs.
503
504
5052010-03-29: Version 2.2.0
506
507 Fixed a few minor bugs.
508
509 Performance improvements for string operations.
510
511
5122010-03-26: Version 2.1.10
513
514 Fixed scons build issues.
515
516 Fixed a couple of minor bugs.
517
518
5192010-03-25: Version 2.1.9
520
521 Added API support for reattaching a global object to a context.
522
523 Extended debugger API with access to the internal debugger context.
524
525 Fixed Chromium crashes (issues http://crbug.com/39128 and
526 http://crbug.com/39160)
527
528
5292010-03-24: Version 2.1.8
530
531 Added fine-grained garbage collection callbacks to the API.
532
533 Performance improvements on all platforms.
534
535
5362010-03-22: Version 2.1.7
537
538 Fixed issue 650.
539
540 Fixed a bug where __proto__ was sometimes enumerated (issue 646).
541
542 Performance improvements for arithmetic operations.
543
544 Performance improvements for string operations.
545
546 Print script name and line number information in stack trace.
547
548
5492010-03-17: Version 2.1.6
550
551 Performance improvements for arithmetic operations.
552
553 Performance improvements for string operations.
554
555
5562010-03-10: Version 2.1.4
557
558 Fixed code cache lookup for keyed IC's (issue http://crbug.com/37853).
559
560 Performance improvements on all platforms.
561
562
5632010-03-10: Version 2.1.3
564
565 Added API method for context-disposal notifications.
566
567 Added API method for accessing elements by integer index.
568
569 Added missing implementation of Uint32::Value and Value::IsUint32
570 API methods.
571
572 Added IsExecutionTerminating API method.
573
574 Disabled strict aliasing for GCC 4.4.
575
576 Fixed string-concatenation bug (issue 636).
577
578 Performance improvements on all platforms.
579
580
Andrei Popescu402d9372010-02-26 13:31:12 +00005812010-02-23: Version 2.1.2
582
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100583 Fixed a crash bug caused by wrong assert.
Andrei Popescu402d9372010-02-26 13:31:12 +0000584
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100585 Fixed a bug with register names on 64-bit V8 (issue 615).
Andrei Popescu402d9372010-02-26 13:31:12 +0000586
587 Performance improvements on all platforms.
588
Steve Block6ded16b2010-05-10 14:33:55 +0100589
Andrei Popescu402d9372010-02-26 13:31:12 +00005902010-02-19: Version 2.1.1
591
592 [ES5] Implemented Object.defineProperty.
593
594 Improved profiler support.
595
596 Added SetPrototype method in the public V8 API.
597
598 Added GetScriptOrigin and GetScriptLineNumber methods to Function
599 objects in the API.
600
601 Performance improvements on all platforms.
602
603
Leon Clarke4515c472010-02-03 11:58:03 +00006042010-02-03: Version 2.1.0
605
606 Values are now always wrapped in objects when used as a receiver.
607 (issue 223).
608
609 [ES5] Implemented Object.getOwnPropertyNames.
610
611 [ES5] Restrict JSON.parse to only accept strings that conforms to the
612 JSON grammar.
613
614 Improvement of debugger agent (issue 549 and 554).
615
616 Fixed problem with skipped stack frame in profiles (issue 553).
617
618 Solaris support by Erich Ocean <erich.ocean@me.com> and Ryan Dahl
619 <ry@tinyclouds.org>.
620
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100621 Fixed a bug that Math.round() returns incorrect results for huge
Leon Clarke4515c472010-02-03 11:58:03 +0000622 integers.
623
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100624 Fixed enumeration order for objects created from some constructor
Leon Clarke4515c472010-02-03 11:58:03 +0000625 functions (isue http://crbug.com/3867).
626
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100627 Fixed arithmetic on some integer constants (issue 580).
Leon Clarke4515c472010-02-03 11:58:03 +0000628
629 Numerous performance improvements including porting of previous IA-32
630 optimizations to x64 and ARM architectures.
631
632
Leon Clarkee46be812010-01-19 14:06:41 +00006332010-01-14: Version 2.0.6
634
635 Added ES5 Object.getPrototypeOf, GetOwnPropertyDescriptor,
636 GetOwnProperty, FromPropertyDescriptor.
637
638 Fixed Mac x64 build errors.
639
640 Improved performance of some math and string operations.
641
642 Improved performance of some regexp operations.
643
644 Improved performance of context creation.
645
646 Improved performance of hash tables.
647
648
6492009-12-18: Version 2.0.5
650
651 Extended to upper limit of map space to allow for 7 times as many map
652 to be allocated (issue 524).
653
654 Improved performance of code using closures.
655
656 Improved performance of some binary operations involving doubles.
657
658
6592009-12-16: Version 2.0.4
660
661 Added ECMAScript 5 Object.create.
662
663 Improved performance of Math.max and Math.min.
664
665 Optimized adding of strings on 64-bit platforms.
666
667 Improved handling of external strings by using a separate table
668 instead of weak handles. This improves garbage collection
669 performance and uses less memory.
670
671 Changed code generation for object and array literals in toplevel
672 code to be more compact by doing more work in the runtime.
673
674 Fixed a crash bug triggered when garbage collection happened during
675 generation of a callback load inline cache stub.
676
677 Fixed crash bug sometimes triggered when local variables shadowed
678 parameters in functions that used the arguments object.
679
680
Steve Blockd0582a62009-12-15 09:54:21 +00006812009-12-03: Version 2.0.3
682
683 Optimized handling and adding of strings, for-in and Array.join.
684
685 Heap serialization is now non-destructive.
686
687 Improved profiler support with information on time spend in C++
688 callbacks registered through the API.
689
690 Added commands to the debugger protocol for starting/stopping
691 profiling.
692
693 Enabled the non-optimizing compiler for top-level code.
694
695 Changed the API to only allow strings to be set as data objects on
696 Contexts and scripts to avoid potentially keeping global objects
697 around for too long (issue 528).
698
699 OpenBSD support patch by Peter Valchev <pvalchev@gmail.com>.
700
701 Fixed bugs.
702
703
7042009-11-24: Version 2.0.2
705
706 Improved profiler support.
707
708 Fixed bug that broke compilation of d8 with readline support.
709
710
7112009-11-20: Version 2.0.1
712
713 Fixed crash bug in String.prototype.replace.
714
715 Reverted a change which caused Chromium interactive ui test
716 failures.
717
Leon Clarkee46be812010-01-19 14:06:41 +0000718
Steve Blockd0582a62009-12-15 09:54:21 +00007192009-11-18: Version 2.0.0
720
721 Added support for VFP on ARM.
722
723 Added TryCatch::ReThrow method to the API.
724
725 Reduced the size of snapshots and improved the snapshot load time.
726
727 Improved heap profiler support.
728
729 64-bit version now supported on Windows.
730
731 Fixed a number of debugger issues.
732
733 Fixed bugs.
734
735
7362009-10-29: Version 1.3.18
737
738 Reverted a change which caused crashes in RegExp replace.
739
740 Reverted a change which caused Chromium ui_tests failure.
741
742
7432009-10-28: Version 1.3.17
744
745 Added API method to get simple heap statistics.
746
747 Improved heap profiler support.
748
749 Fixed the implementation of the resource constraint API so it
750 works when using snapshots.
751
752 Fixed a number of issues in the Windows 64-bit version.
753
754 Optimized calls to API getters.
755
756 Added valgrind notification on code modification to the 64-bit version.
757
758 Fixed issue where we logged shared library addresses on Windows at
759 startup and never used them.
760
761
Steve Block3ce2e202009-11-05 08:53:23 +00007622009-10-16: Version 1.3.16
Leon Clarkee46be812010-01-19 14:06:41 +0000763
Steve Block3ce2e202009-11-05 08:53:23 +0000764 X64: Convert smis to holding 32 bits of payload.
765
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100766 Introduced v8::Integer::NewFromUnsigned method.
Steve Block3ce2e202009-11-05 08:53:23 +0000767
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100768 Added missing null check in Context::GetCurrent.
Steve Block3ce2e202009-11-05 08:53:23 +0000769
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100770 Added trim, trimLeft and trimRight methods to String
Steve Block3ce2e202009-11-05 08:53:23 +0000771 Patch by Jan de Mooij <jandemooij@gmail.com>
772
773 Implement ES5 Array.isArray
774 Patch by Jan de Mooij <jandemooij@gmail.com>
775
776 Skip access checks for hidden properties.
777
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100778 Added String::Concat(Handle<String> left, Handle<String> right) to the
779 V8 API.
Steve Block3ce2e202009-11-05 08:53:23 +0000780
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100781 Fixed GYP-based builds of V8.
Steve Block3ce2e202009-11-05 08:53:23 +0000782
783
7842009-10-07: Version 1.3.15
785
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100786 Expanded the maximum size of the code space to 512MB for 64-bit mode.
Steve Block3ce2e202009-11-05 08:53:23 +0000787
788 Fixed a crash bug happening when starting profiling (issue
789 http://crbug.com/23768).
790
791
7922009-10-07: Version 1.3.14
793
794 Added GetRealNamedProperty to the API to lookup real properties
795 located on the object or in the prototype chain skipping any
796 interceptors.
797
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100798 Fixed the stack limits setting API to work correctly with threads. The
Steve Block3ce2e202009-11-05 08:53:23 +0000799 stack limit now needs to be set to each thread thich is used with V8.
800
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100801 Removed the high-priority flag from IdleNotification()
Steve Block3ce2e202009-11-05 08:53:23 +0000802
803 Ensure V8 is initialized before locking and unlocking threads.
804
805 Implemented a new JavaScript minifier for compressing the source of
Steve Blockd0582a62009-12-15 09:54:21 +0000806 the built-in JavaScript. This removes non-Open Source code from Douglas
Steve Block3ce2e202009-11-05 08:53:23 +0000807 Crockford from the project.
808
809 Added a missing optimization in StringCharAt.
810
811 Fixed some flaky socket tests.
812
813 Change by Alexander Botero-Lowry to fix profiler sampling on FreeBSD
814 in 64-bit mode.
815
816 Fixed memory leaks in the thread management code.
817
818 Fixed the result of assignment to a pixel array. The assigned value
819 is now the result.
820
821 Error reporting for invalid left-hand sides in for-in statements, pre-
822 and postfix count expressions, and assignments now matches the JSC
823 behavior in Safari 4.
824
825 Follow the spec in disallowing function declarations without a name.
826
827 Always allocate code objects within a 2 GB range. On x64 architecture
828 this is used to use near calls (32-bit displacement) in Code objects.
829
830 Optimized array construction ported to x64 and ARM architectures.
831
832 [ES5] Changed Object.keys to return strings for element indices.
833
834
Steve Blocka7e24c12009-10-30 11:49:00 +00008352009-09-23: Version 1.3.13
836
837 Fixed uninitialized memory problem.
838
839 Improved heap profiler support.
840
841
8422009-09-22: Version 1.3.12
843
844 Changed behavior of |function|.toString() on built-in functions to
845 be compatible with other implementations. Patch by Jan de Mooij.
846
847 Added Object::IsDirty in the API.
848
849 Optimized array construction; it is now handled purely in native
850 code.
851
852 [ES5] Made properties of the arguments array enumerable.
853
854 [ES5] Added test suite adapter for the es5conform test suite.
855
856 [ES5] Added Object.keys function.
857
858
8592009-09-15: Version 1.3.11
860
861 Fixed crash in error reporting during bootstrapping.
862
863 Optimized generated IA32 math code by using SSE2 instructions when
864 available.
865
866 Implemented missing pieces of debugger infrastructure on ARM. The
867 debugger is now fully functional on ARM.
868
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100869 Made 'hidden' the default visibility for gcc.
Steve Blocka7e24c12009-10-30 11:49:00 +0000870
871
8722009-09-09: Version 1.3.10
873
874 Fixed profiler on Mac in 64-bit mode.
875
876 Optimized creation of objects from simple constructor functions on
877 ARM.
878
879 Fixed a number of debugger issues.
880
881 Reduced the amount of memory consumed by V8.
882
883
8842009-09-02: Version 1.3.9
885
886 Optimized stack guard checks on ARM.
887
888 Optimized API operations by inlining more in the API.
889
890 Optimized creation of objects from simple constructor functions.
891
892 Enabled a number of missing optimizations in the 64-bit port.
893
894 Implemented native-code support for regular expressions on ARM.
895
896 Stopped using the 'sahf' instruction on 64-bit machines that do
897 not support it.
898
899 Fixed a bug in the support for forceful termination of JavaScript
900 execution.
901
902
9032009-08-26: Version 1.3.8
904
905 Changed the handling of idle notifications to allow idle
906 notifications when V8 has not yet been initialized.
907
908 Fixed ARM simulator compilation problem on Windows.
Leon Clarkee46be812010-01-19 14:06:41 +0000909
Steve Blocka7e24c12009-10-30 11:49:00 +0000910
9112009-08-25: Version 1.3.7
912
913 Reduced the size of generated code on ARM platforms by reducing
914 the size of constant pools.
915
916 Changed build files to not include the 'ENV' user environment
917 variable in the build environment.
918
919 Changed the handling of idle notifications.
920
921
9222009-08-21: Version 1.3.6
923
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100924 Added support for forceful termination of JavaScript execution.
Steve Blocka7e24c12009-10-30 11:49:00 +0000925
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100926 Added low memory notification to the API. The embedding host can signal
Steve Blocka7e24c12009-10-30 11:49:00 +0000927 a low memory situation to V8.
928
929 Changed the handling of global handles (persistent handles in the API
930 sense) to avoid issues regarding allocation of new global handles
931 during weak handle callbacks.
932
933 Changed the growth policy of the young space.
934
935 Fixed a GC issue introduced in version 1.3.5.
936
937
9382009-08-19: Version 1.3.5
939
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100940 Optimized initialization of some arrays in the builtins.
Steve Blocka7e24c12009-10-30 11:49:00 +0000941
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100942 Fixed mac-nm script to support filenames with spaces.
Steve Blocka7e24c12009-10-30 11:49:00 +0000943
944 Support for using the V8 profiler when V8 is embedded in a Windows DLL.
945
946 Changed typeof RegExp from 'object' to 'function' for compatibility.
947 Fixed bug where regexps were not callable across contexts.
948
949 Added context independent script compilation to the API.
950
951 Added API call to get the stack trace for an exception.
952
953 Added API for getting object mirrors.
954
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100955 Made sure that SSE3 instructions are used whenever possible even when
Steve Blocka7e24c12009-10-30 11:49:00 +0000956 running off a snapshot generated without using SSE3 instructions.
957
958 Tweaked the handling of the initial size and growth policy of the heap.
959
960 Added native code generation for RegExp to 64-bit version.
961
962 Added JavaScript debugger support to 64-bit version.
963
964
9652009-08-13: Version 1.3.4
966
967 Added a readline() command to the d8 shell.
968
969 Fixed bug in json parsing.
970
971 Added idle notification to the API and reduced memory on idle
972 notifications.
973
974
9752009-08-12: Version 1.3.3
976
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100977 Fixed issue 417: incorrect %t placeholder expansion.
Steve Blocka7e24c12009-10-30 11:49:00 +0000978
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100979 Added .gitignore file similar to Chromium's one.
Steve Blocka7e24c12009-10-30 11:49:00 +0000980
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100981 Fixed SConstruct file to build with new logging code for Android.
Steve Blocka7e24c12009-10-30 11:49:00 +0000982
983 API: added function to find instance of template in prototype
984 chain. Inlined Object::IsInstanceOf.
985
986 Land change to notify valgrind when we modify code on x86.
987
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100988 Added api call to determine whether a string can be externalized.
Steve Blocka7e24c12009-10-30 11:49:00 +0000989
Kristian Monsen0d5e1162010-09-30 15:31:59 +0100990 Added a write() command to d8.
Steve Blocka7e24c12009-10-30 11:49:00 +0000991
992
9932009-08-05: Version 1.3.2
994
995 Started new compiler infrastructure for two-pass compilation using a
996 control flow graph constructed from the AST.
997
998 Profiler stack sampling for X64.
999
1000 Safe handling of NaN to Posix platform-dependent time functions.
1001
1002 Added a new profiler control API to unify controlling various aspects
1003 of profiling.
1004
1005 Fixed issue 392.
1006
1007
10082009-07-30: Version 1.3.1
1009
1010 Speed improvements to accessors and interceptors.
1011
1012 Added support for capturing stack information on custom errors.
1013
1014 Added support for morphing an object into a pixel array where its
1015 indexed properties are stored in an external byte array. Values written
1016 are always clamped to the 0..255 interval.
1017
1018 Profiler on x64 now handles C/C++ functions from shared libraries.
1019
1020 Changed the debugger to avoid stepping into function.call/apply if the
1021 function is a built-in.
1022
1023 Initial implementation of constructor heap profile for JS objects.
Leon Clarkee46be812010-01-19 14:06:41 +00001024
Steve Blocka7e24c12009-10-30 11:49:00 +00001025 More fine grained control of profiling aspects through the API.
Leon Clarkee46be812010-01-19 14:06:41 +00001026
Steve Blocka7e24c12009-10-30 11:49:00 +00001027 Optimized the called as constructor check for API calls.
1028
1029
10302009-07-27: Version 1.3.0
1031
1032 Allowed RegExp objects to be called as functions (issue 132).
1033
1034 Fixed issue where global property cells would escape after
1035 detaching the global object; see http://crbug.com/16276.
1036
1037 Added support for stepping into setters and getters in the
1038 debugger.
1039
1040 Changed the debugger to avoid stopping in its own JavaScript code
1041 and in the code of built-in functions.
1042
1043 Fixed issue 345 by avoiding duplicate escaping labels.
1044
1045 Fixed ARM code generator crash in short-circuited boolean
1046 expressions and added regression tests.
1047
1048 Added an external allocation limit to avoid issues where small V8
1049 objects would hold on to large amounts of external memory without
1050 causing garbage collections.
Leon Clarkee46be812010-01-19 14:06:41 +00001051
1052 Finished more of the inline caching stubs for x64 targets.
Steve Blocka7e24c12009-10-30 11:49:00 +00001053
1054
10552009-07-13: Version 1.2.14
1056
1057 Added separate paged heap space for global property cells and
1058 avoid updating the write barrier when storing into them.
1059
1060 Improved peep-hole optimization on ARM platforms by not emitting
1061 unnecessary debug information.
1062
1063 Re-enabled ICs for loads and calls that skip a global object
1064 during lookup through the prototype chain.
1065
1066 Allowed access through global proxies to use ICs.
1067
1068 Fixed issue 401.
1069
1070
10712009-07-09: Version 1.2.13
1072
1073 Fixed issue 397, issue 398, and issue 399.
1074
1075 Added support for breakpoint groups.
1076
1077 Fixed bugs introduced with the new global object representation.
1078
1079 Fixed a few bugs in the ARM code generator.
1080
1081
10822009-07-06: Version 1.2.12
1083
1084 Added stack traces collection to Error objects accessible through
1085 the e.stack property.
1086
1087 Changed RegExp parser to use a recursive data structure instead of
1088 stack-based recursion.
1089
1090 Optimized Date object construction and string concatenation.
1091
1092 Improved performance of div, mod, and mul on ARM platforms.
1093
1094
10952009-07-02: Version 1.2.11
1096
1097 Improved performance on IA-32 and ARM.
1098
1099 Fixed profiler sampler implementation on Mac OS X.
1100
1101 Changed the representation of global objects to improve
1102 performance of adding a lot of new properties.
1103
1104
11052009-06-29: Version 1.2.10
1106
1107 Improved debugger support.
1108
1109 Fixed bug in exception message reporting (issue 390).
1110
1111 Improved overall performance.
1112
1113
11142009-06-23: Version 1.2.9
1115
1116 Improved math performance on ARM.
1117
1118 Fixed profiler name-inference bug.
1119
1120 Fixed handling of shared libraries in the profiler tick processor
1121 scripts.
1122
1123 Fixed handling of tests that time out in the test scripts.
1124
1125 Fixed compilation on MacOS X version 10.4.
1126
1127 Fixed two bugs in the regular expression engine.
1128
1129 Fixed a bug in the string type inference.
1130
1131 Fixed a bug in the handling of 'constant function' properties.
Leon Clarkee46be812010-01-19 14:06:41 +00001132
Steve Blocka7e24c12009-10-30 11:49:00 +00001133 Improved overall performance.
Leon Clarkee46be812010-01-19 14:06:41 +00001134
Steve Blocka7e24c12009-10-30 11:49:00 +00001135
11362009-06-16: Version 1.2.8
1137
1138 Optimized math on ARM platforms.
1139
1140 Fixed two crash bugs in the handling of getters and setters.
1141
1142 Improved the debugger support by adding scope chain information.
1143
1144 Improved the profiler support by compressing log data transmitted
1145 to clients.
1146
1147 Improved overall performance.
1148
1149
11502009-06-08: Version 1.2.7
1151
1152 Improved debugger and profiler support.
1153
1154 Reduced compilation time by improving the handling of deferred
1155 code.
1156
1157 Optimized interceptor accesses where the property is on the object
1158 on which the interceptors is attached.
1159
1160 Fixed compilation problem on GCC 4.4 by changing the stack
1161 alignment to 16 bytes.
1162
1163 Fixed handle creation to follow stric aliasing rules.
1164
1165 Fixed compilation on FreeBSD.
1166
1167 Introduced API for forcing the deletion of a property ignoring
1168 interceptors and attributes.
1169
1170
11712009-05-29: Version 1.2.6
1172
1173 Added a histogram recording hit rates at different levels of the
1174 compilation cache.
1175
1176 Added stack overflow check for the RegExp analysis phase. Previously a
1177 very long regexp graph could overflow the stack with recursive calls.
1178
1179 Use a dynamic buffer when collecting log events in memory.
1180
1181 Added start/stop events to the profiler log.
1182
1183 Fixed infinite loop which could happen when setting a debug break while
1184 executing a RegExp compiled to native code.
1185
1186 Fixed handling of lastIndexOf called with negative index (issue 351).
1187
1188 Fixed irregular crash in profiler test (issue 358).
1189
1190 Fixed compilation issues with some versions of gcc.
1191
1192
11932009-05-26: Version 1.2.5
1194
1195 Fixed bug in initial boundary check for Boyer-Moore text
1196 search (issue 349).
1197
1198 Fixed compilation issues with MinGW and gcc 4.3+ and added support
1199 for armv7 and cortex-a8 architectures. Patches by Lei Zhang and
1200 Craig Schlenter.
1201
1202 Added a script cache to the debugger.
1203
1204 Optimized compilation performance by improving internal data
1205 structures and avoiding expensive property load optimizations for
1206 code that's infrequently executed.
1207
1208 Exposed the calling JavaScript context through the static API
1209 function Context::GetCalling().
1210
1211
12122009-05-18: Version 1.2.4
1213
1214 Improved performance of floating point number allocation for ARM
1215 platforms.
1216
1217 Fixed crash when using the instanceof operator on functions with
1218 number values in their prototype chain (issue 341).
1219
1220 Optimized virtual frame operations in the code generator to speed
1221 up compilation time and allocated the frames in the zone.
1222
1223 Made the representation of virtual frames and jump targets in the
1224 code generator much more compact.
1225
1226 Avoided linear search for non-locals in scope code when resolving
1227 variables inside with and eval scopes.
1228
1229 Optimized lexical scanner by dealing with whitespace as part of
1230 the token scanning instead of as a separate step before it.
1231
1232 Changed the scavenging collector so that promoted objects do not
1233 reside in the old generation while their remembered set is being
1234 swept for pointers into the young generation.
1235
1236 Fixed numeric overflow handling when compiling count operations.
1237
1238
12392009-05-11: Version 1.2.3
1240
1241 Fixed bug in reporting of out-of-memory situations.
1242
1243 Introduced hidden prototypes on certain builtin prototype objects
1244 such as String.prototype to emulate JSC's behavior of restoring
1245 the original function when deleting functions from those prototype
1246 objects.
1247
1248 Fixed crash bug in the register allocator.
1249
1250
12512009-05-04: Version 1.2.2
1252
1253 Fixed bug in array sorting for sparse arrays (issue 326).
1254
1255 Added support for adding a soname when building a shared library
1256 on Linux (issue 151).
1257
1258 Fixed bug caused by morphing internal ASCII strings to external
1259 two-byte strings. Slices over ASCII strings have to forward ASCII
1260 checks to the underlying buffer string.
1261
1262 Allowed API call-as-function handlers to be called as
1263 constructors.
1264
1265 Fixed a crash bug where an external string was disposed but a
1266 slice of the external string survived as a symbol.
1267
1268
12692009-04-27: Version 1.2.1
1270
1271 Added EcmaScript 5 JSON object.
1272
Kristian Monsen0d5e1162010-09-30 15:31:59 +01001273 Fixed bug in preemption support on ARM.
Steve Blocka7e24c12009-10-30 11:49:00 +00001274
1275
12762009-04-23: Version 1.2.0
1277
1278 Optimized floating-point operations on ARM.
1279
1280 Added a number of extensions to the debugger API.
1281
1282 Changed the enumeration order for unsigned integer keys to always
1283 be numerical order.
1284
1285 Added a "read" extension to the shell sample.
1286
1287 Added support for Array.prototype.reduce and
1288 Array.prototype.reduceRight.
1289
1290 Added an option to the SCons build to control Microsoft Visual C++
1291 link-time code generation.
1292
1293 Fixed a number of bugs (in particular issue 315, issue 316,
1294 issue 317 and issue 318).
1295
1296
12972009-04-15: Version 1.1.10
1298
1299 Fixed crash bug that occurred when loading a const variable in the
1300 presence of eval.
1301
1302 Allowed using with and eval in registered extensions in debug mode
1303 by fixing bogus assert.
1304
1305 Fixed the source position for function returns to enable the
1306 debugger to break there.
1307
1308
13092009-04-14: Version 1.1.9
1310
1311 Made the stack traversal code in the profiler robust by avoiding
1312 to look into the heap.
1313
1314 Added name inferencing for anonymous functions to facilitate
1315 debugging and profiling.
1316
1317 Re-enabled stats timers in the developer shell (d8).
1318
1319 Fixed issue 303 by avoiding to shortcut cons-symbols.
1320
1321
13222009-04-11: Version 1.1.8
1323
1324 Changed test-debug/ThreadedDebugging to be non-flaky (issue 96).
1325
1326 Fixed step-in handling for Function.prototype.apply and call in
1327 the debugger (issue 269).
1328
1329 Fixed v8::Object::DeleteHiddenValue to not bail out when there
1330 are no hidden properties.
1331
1332 Added workaround for crash bug, where external symbol table
1333 entries with deleted resources would lead to NPEs when looking
1334 up in the symbol table.
1335
1336
13372009-04-07: Version 1.1.7
1338
1339 Added support for easily importing additional environment
1340 variables into the SCons build.
1341
1342 Optimized strict equality checks.
1343
1344 Fixed crash in indexed setters on objects without a corresponding
1345 getter (issue 298).
1346
1347 Re-enabled script compilation cache.
1348
1349
13502009-04-01: Version 1.1.6
1351
1352 Reverted an unsafe code generator change.
1353
1354
13552009-04-01: Version 1.1.5
1356
1357 Fixed bug that caused function literals to not be optimized as
1358 much as other functions.
1359
1360 Improved profiler support.
1361
1362 Fixed a crash bug in connection with debugger unloading.
1363
1364 Fixed a crash bug in the code generator caused by losing the
1365 information that a frame element was copied.
1366
1367 Fixed an exception propagation bug that could cause non-null
1368 return values when exceptions were thrown.
1369
1370
13712009-03-30: Version 1.1.4
1372
1373 Optimized String.prototype.match.
1374
1375 Improved the stack information in profiles.
1376
1377 Fixed bug in ARM port making it possible to compile the runtime
1378 system for thumb mode again.
1379
1380 Implemented a number of optimizations in the code generator.
1381
1382 Fixed a number of memory leaks in tests.
1383
1384 Fixed crash bug in connection with script source code and external
1385 strings.
1386
1387
13882009-03-24: Version 1.1.3
1389
1390 Fixed assertion failures in compilation of loop conditions.
1391
1392 Removed STL dependency from developer shell (d8).
1393
1394 Added infrastructure for protecting the V8 heap from corruption
1395 caused by memory modifications from the outside.
1396
1397
13982009-03-24: Version 1.1.2
1399
1400 Improved frame merge code generated by the code generator.
1401
1402 Optimized String.prototype.replace.
1403
1404 Implemented __defineGetter__ and __defineSetter__ for properties
1405 with integer keys on non-array objects.
1406
1407 Improved debugger and profiler support.
1408
1409 Fixed a number of portability issues to allow compilation for
1410 smaller ARM devices.
1411
1412 Exposed object cloning through the API.
1413
1414 Implemented hidden properties. This is used to expose an identity
1415 hash for objects through the API.
1416
1417 Implemented restarting of regular expressions if their input
1418 string changes representation during preemption.
1419
1420 Fixed a code generator bug that could cause assignments in loops
1421 to be ignored if using continue to break out of the loop (issue
1422 284).
1423
1424
14252009-03-12: Version 1.1.1
1426
1427 Fixed an assertion in the new compiler to take stack overflow
1428 exceptions into account.
1429
1430 Removed exception propagation code that could cause crashes.
1431
1432 Fixed minor bug in debugger line number computations.
1433
1434 8-byte align the C stack on Linux and Windows to speed up floating
1435 point computations.
1436
1437
14382009-03-12: Version 1.1.0
1439
1440 Improved code generation infrastructure by doing simple register
1441 allocation and constant folding and propagation.
1442
1443 Optimized regular expression matching by avoiding to create
1444 intermediate string arrays and by flattening nested array
1445 representations of RegExp data.
1446
1447 Traverse a few stack frames when recording profiler samples to
1448 include partial call graphs in the profiling output.
1449
1450 Added support for using OProfile to profile generated code.
1451
1452 Added remote debugging support to the D8 developer shell.
1453
1454 Optimized creation of nested literals like JSON objects.
1455
1456 Fixed a bug in garbage collecting unused maps and turned it on by
1457 default (--collect-maps).
1458
1459 Added support for running tests under Valgrind.
1460
1461
14622009-02-27: Version 1.0.3
1463
1464 Optimized double-to-integer conversions in bit operations by using
1465 SSE3 instructions if available.
1466
1467 Optimized initialization sequences that store to multiple
1468 properties of the same object.
1469
1470 Changed the D8 debugger frontend to use JSON messages.
1471
1472 Force garbage collections when disposing contexts.
1473
1474 Align code objects at 32-byte boundaries.
1475
1476
14772009-02-25: Version 1.0.2
1478
1479 Improved profiling support by performing simple call stack
1480 sampling for ticks and by fixing a bug in the logging of code
1481 addresses.
1482
1483 Fixed a number of debugger issues.
1484
1485 Optimized code that uses eval.
1486
1487 Fixed a couple of bugs in the regular expression engine.
1488
1489 Reduced the size of generated code for certain regular expressions.
1490
1491 Removed JSCRE completely.
1492
1493 Fixed issue where test could not be run if there was a dot in the
1494 checkout path.
1495
1496
14972009-02-13: Version 1.0.1
1498
1499 Fixed two crash-bugs in irregexp (issue 231 and 233).
1500
1501 Fixed a number of minor bugs (issue 87, 227 and 228).
1502
1503 Added support for morphing strings to external strings on demand
1504 to avoid having to create copies in the embedding code.
1505
1506 Removed experimental support for external symbol callbacks.
1507
1508
15092009-02-09: Version 1.0.0
1510
1511 Fixed crash-bug in the code generation for case independent 16 bit
1512 backreferences.
1513
1514 Made shells more robust in the presence of string conversion
1515 failures (issue 224).
1516
1517 Fixed a potential infinite loop when attempting to resolve
1518 eval (issue 221).
1519
1520 Miscellaneous fixes to the new regular expression engine.
1521
1522 Reduced binary by stripping unneeded text from JavaScript library and
1523 minifying some JavaScript files.
1524
1525
15262009-01-27: Version 0.4.9
1527
1528 Enabled new regular expression engine.
1529
1530 Made a number of changes to the debugger protocol.
1531
1532 Fixed a number of bugs in the preemption support.
1533
1534 Added -p option to the developer shell to run files in parallel
1535 using preemption.
1536
1537 Fixed a number of minor bugs (including issues 176, 187, 189, 192,
1538 193, 198 and 201).
1539
1540 Fixed a number of bugs in the serialization/deserialization
1541 support for the ARM platform.
1542
1543
15442009-01-19: Version 0.4.8.1
1545
1546 Minor patch to debugger support.
1547
1548
15492009-01-16: Version 0.4.8
1550
1551 Fixed string length bug on ARM (issue 171).
1552
1553 Made most methods in the API const.
1554
1555 Optimized object literals by improving data locality.
1556
1557 Fixed bug that caused incomplete functions to be cached in case of
1558 stack overflow exceptions.
1559
1560 Fixed bugs that caused catch variables and variables introduced by
1561 eval to behave incorrectly when using accessors (issues 186, 190
1562 and 191).
1563
1564
15652009-01-06: Version 0.4.7
1566
1567 Minor bugfixes and optimizations.
1568
1569 Added command line debugger to D8 shell.
1570
1571 Fixed subtle bug that caused the wrong 'this' to be used when
1572 calling a caught function in a catch clause.
1573
1574 Inline array loads within loops directly in the code instead of
1575 always calling a stub.
1576
1577
15782008-12-11: Version 0.4.6
1579
1580 Fixed exception reporting bug where certain exceptions were
1581 incorrectly reported as uncaught.
1582
1583 Improved the memory allocation strategy used during compilation to
1584 make running out of memory when compiling huge scripts less
1585 likely.
1586
1587 Optimized String.replace by avoiding the construction of certain
1588 sub strings.
1589
1590 Fixed bug in code generation for large switch statements on ARM.
1591
1592 Fixed bug that caused V8 to change the global object template
1593 passed in by the user.
1594
1595 Changed the API for creating object groups used during garbage
1596 collection. Entire object groups are now passed to V8 instead of
1597 individual members of the groups.
1598
1599
16002008-12-03: Version 0.4.5
1601
1602 Added experimental API support for allocating V8 symbols as
1603 external strings.
1604
1605 Fixed bugs in debugging support on ARM.
1606
1607 Changed eval implementation to correctly detect whether or not a
1608 call to eval is aliased.
1609
1610 Fixed bug caused by a combination of the compilation cache and
1611 dictionary probing in native code. The bug caused us to sometimes
1612 call functions that had not yet been compiled.
1613
1614 Added platform support for FreeBSD.
1615
1616 Added support for building V8 on Windows with either the shared or
1617 static version of MSVCRT
1618
1619 Added the v8::jscre namespace around the jscre functions to avoid
1620 link errors (duplicate symbols) when building Google Chrome.
1621
1622 Added support for calling a JavaScript function with the current
1623 debugger execution context as its argument to the debugger
1624 interface.
1625
1626 Changed the type of names of counters from wchar_t to char.
1627
1628 Changed the Windows system call used to compute daylight savings
1629 time. The system call that we used to use became four times
1630 slower on WinXP SP3.
1631
1632 Added support in the d8 developer shell for memory-mapped counters
1633 and added a stats-viewer tool.
1634
1635 Fixed bug in upper/lower case mappings (issue 149).
1636
1637
16382008-11-17: Version 0.4.4
1639
1640 Reduced code size by using shorter instruction encoding when
1641 possible.
1642
1643 Added a --help option to the shell sample and to the d8 shell.
1644
1645 Added visual studio project files for building the ARM simulator.
1646
1647 Fixed a number of ARM simulator issues.
1648
1649 Fixed bug in out-of-memory handling on ARM.
1650
1651 Implemented shell support for passing arguments to a script from
1652 the command line.
1653
1654 Fixed bug in date code that made certain date functions return -0
1655 instead of 0 for dates before the epoch.
1656
1657 Restricted applications of eval so it can only be used in the
1658 context of the associated global object.
1659
1660 Treat byte-order marks as whitespace characters.
1661
1662
16632008-11-04: Version 0.4.3
1664
1665 Added support for API accessors that prohibit overwriting by
1666 accessors defined in JavaScript code by using __defineGetter__ and
1667 __defineSetter__.
1668
1669 Improved handling of conditionals in test status files.
1670
1671 Introduced access control in propertyIsEnumerable.
1672
1673 Improved performance of some string operations by caching
1674 information about the type of the string between operations.
1675
1676 Fixed bug in fast-case code for switch statements that only have
1677 integer labels.
1678
1679
16802008-10-30: Version 0.4.2
1681
1682 Improved performance of Array.prototype.concat by moving the
1683 implementation to C++ (issue 123).
1684
1685 Fixed heap growth policy to avoid growing old space to its maximum
1686 capacity before doing a garbage collection and fixed issue that
1687 would lead to artificial out of memory situations (issue 129).
1688
1689 Fixed Date.prototype.toLocaleDateString to return the date in the
1690 same format as WebKit.
1691
1692 Added missing initialization checks to debugger API.
1693
1694 Added removing of unused maps during GC.
1695
1696
16972008-10-28: Version 0.4.1
1698
1699 Added caching of RegExp data in compilation cache.
1700
1701 Added Visual Studio project file for d8 shell.
1702
1703 Fixed function call performance regression introduced in version
1704 0.4.0 when splitting the global object in two parts (issue 120).
1705
1706 Fixed issue 131 by checking for empty handles before throwing and
1707 reporting exceptions.
1708
1709
17102008-10-23: Version 0.4.0
1711
1712 Split the global object into two parts: The state holding global
1713 object and the global object proxy.
1714
1715 Fixed bug that affected the value of an assignment to an element
1716 in certain cases (issue 116).
1717
1718 Added GetPropertyNames functionality (issue 33) and extra Date
1719 functions (issue 77) to the API.
1720
1721 Changed WeakReferenceCallback to take a Persistent<Value> instead
1722 of a Persistent<Object> (issue 101).
1723
1724 Fixed issues with message reporting for exceptions in try-finally
1725 blocks (issues 73 and 75).
1726
1727 Optimized flattening of strings and string equality checking.
1728
1729 Improved Boyer-Moore implementation for faster indexOf operations.
1730
1731 Added development shell (d8) which includes counters and
1732 completion support.
1733
1734 Fixed problem with the receiver passed to functions called from
1735 eval (issue 124).
1736
1737
17382008-10-16: Version 0.3.5
1739
1740 Improved string hash-code distribution by excluding bit-field bits
1741 from the hash-code.
1742
1743 Changed string search algorithm used in indexOf from KMP to
1744 Boyer-Moore.
1745
1746 Improved the generated code for the instanceof operator.
1747
1748 Improved performance of slow-case string equality checks by
1749 specializing the code based on the string representation.
1750
1751 Improve the handling of out-of-memory situations (issue 70).
1752
1753 Improved performance of strict equality checks.
1754
1755 Improved profiler output to make it easier to see anonymous
1756 functions.
1757
1758 Improved performance of slow-case keyed loads.
1759
1760 Improved property access performance by allocating a number of
1761 properties in the front object.
1762
1763 Changed the toString behavior on the built-in object constructors
1764 to print [native code] instead of the actual source. Some web
1765 applications do not like constructors with complex toString
1766 results.
1767
1768
17692008-10-06: Version 0.3.4
1770
1771 Changed Array.prototype.sort to use quick sort.
1772
1773 Fixed code generation issue where leaving a finally block with
1774 break or continue would accumulate elements on the expression
1775 stack (issue 86).
1776
1777 Made sure that the name accessor on functions returns the expected
1778 names for builtin JavaScript functions and C++ callback functions.
1779
1780 Added fast case code for extending the property storage array of
1781 JavaScript objects.
1782
1783 Ported switch statement optimizations introduced in version 0.3.3
1784 to the ARM code generator.
1785
1786 Allowed GCC to use strict-aliasing rules when compiling.
1787
1788 Improved performance of arguments object allocation by taking care
1789 of arguments adaptor frames in the generated code.
1790
1791 Updated the V8 benchmark suite to version 2.
1792
1793
17942008-09-25: Version 0.3.3
1795
1796 Improved handling of relocation information to enable more
1797 peep-hole optimizations.
1798
1799 Optimized switch statements where all labels are constant small
1800 integers.
1801
1802 Optimized String.prototype.indexOf for common cases.
1803
1804 Fixed more build issues (issue 80).
1805
1806 Fixed a couple of profiler issues.
1807
1808 Fixed bug where the body of a function created using the Function
1809 constructor was not allowed to end with a single-line comment
1810 (issue 85).
1811
1812 Improved handling of object literals by canonicalizing object
1813 literal maps. This will allow JSON objects with the same set of
1814 properties to share the same map making inline caching work better
1815 for JSON objects.
1816
1817
18182008-09-17: Version 0.3.2
1819
1820 Generalized the EvalCache into a CompilationCache and enabled it
1821 for scripts too. The current strategy is to retire all entries
1822 whenever a mark-sweep collection is started.
1823
1824 Fixed bug where switch statements containing only a default case
1825 would lead to an unbalanced stack (issue 69).
1826
1827 Fixed bug that made access to the function in a named function
1828 expression impossible in certain situations (issue 24).
1829
1830 Fixed even more build issues.
1831
1832 Optimized calling conventions on ARM. The conventions on ARM and
1833 IA-32 now match.
1834
1835 Removed static initializers for flags and counters.
1836
1837 Improved inline caching behavior for uncommon cases where lazily
1838 loading Date and RegExp code could force certain code paths go
1839 megamorphic.
1840
1841 Removed arguments adaption for builtins written in C++. This
1842 makes Array.prototype.push and Array.prototype.pop slightly
1843 faster.
1844
1845
18462008-09-11: Version 0.3.1
1847
1848 Fixed a number of build issues.
1849
1850 Fixed problem with missing I-cache flusing on ARM.
1851
1852 Changed space layout in memory management by splitting up
1853 code space into old data space and code space.
1854
1855 Added utf-8 conversion support to the API (issue 57).
1856
1857 Optimized repeated calls to eval with the same strings. These
1858 repeated calls are common in web applications.
1859
1860 Added Xcode project file.
1861
1862 Optimized a couple of Array operation.
1863
1864 Fixed parser bug by checking for end-of-string when parsing break
1865 and continue (issue 35).
1866
1867 Fixed problem where asian characters were not categorized as
1868 letters.
1869
1870 Fixed bug that disallowed calling functions fetched from an array
1871 using a string as an array index (issue 32).
1872
1873 Fixed bug where the internal field count on object templates were
1874 sometimes ignored (issue 54).
1875
1876 Added -f option to the shell sample for compatibility with other
1877 engines (issue 18).
1878
1879 Added source info to TryCatches in the API.
1880
1881 Fixed problem where the seed for the random number generator was
1882 clipped in a double to unsigned int conversion.
1883
1884 Fixed bug where cons string symbols were sometimes converted to
1885 non-symbol flat strings during GC.
1886
1887 Fixed bug in error reporting when attempting to convert null to an
1888 object.
1889
1890
18912008-09-04: Version 0.3.0
1892
1893 Added support for running tests on the ARM simulator.
1894
1895 Fixed bug in the 'in' operator where negative indices were not
1896 treated correctly.
1897
1898 Fixed build issues on gcc-4.3.1.
1899
1900 Changed Date.prototype.toLocaleTimeString to not print the
1901 timezone part of the time.
1902
1903 Renamed debug.h to v8-debug.h to reduce the risk of name conflicts
1904 with user code.
1905
1906
19072008-09-02: Version 0.2.5
1908
1909 Renamed the top level directory 'public' to 'include'.
1910
1911 Added 'env' option to the SCons build scripts to support
1912 overriding the ENV part of the build environment. This is mostly
1913 to support Windows builds in cases where SCons cannot find the
1914 correct paths to the Windows SDK, as these paths cannot be passed
1915 through shell environment variables.
1916
1917 Enabled "Buffer Security Check" on for the Windows SCons build and
1918 added the linker option /OPT:ICF as an optimization.
1919
1920 Added the V8 benchmark suite to the repository.
1921
1922
19232008-09-01: Version 0.2.4
1924
1925 Included mjsunit JavaScript test suite and C++ unit tests.
1926
1927 Changed the shell sample to not print the result of executing a
1928 script provided on the command line.
1929
1930 Fixed issue when building samples on Windows using a shared V8
1931 library. Added visibility option on Linux build which makes the
1932 generated library 18% smaller.
1933
1934 Changed build system to accept multiple build modes in one build
1935 and generate separate objects, libraries and executables for each
1936 mode.
1937
1938 Removed deferred negation optimization (a * -b => -(a * b)) since
1939 this visibly changes operand conversion order.
1940
1941 Improved parsing performance by introducing stack guard in
1942 preparsing. Without a stack guard preparsing always bails out
1943 with stack overflow.
1944
1945 Changed shell sample to take flags directly from the command-line.
1946 Added API call that implements this.
1947
1948 Added load, quit and version functions to the shell sample so it's
1949 easier to run benchmarks and tests.
1950
1951 Fixed issue with building samples and cctests on 64-bit machines.
1952
1953 Fixed bug in the runtime system where the prototype chain was not
1954 always searched for a setter when setting a property that does not
1955 exist locally.
1956
1957
19582008-08-14: Version 0.2.3
1959
1960 Improved performance of garbage collection by moving the
1961 function that updates pointers during compacting collection
1962 into the updating visitor. This gives the compiler a better
1963 chance to inline and avoid a function call per (potential)
1964 pointer.
1965
1966 Extended the shell sample with a --runtime-flags option.
1967
1968 Added Visual Studio project files for the shell.cc and
1969 process.cc samples.
1970
1971
19722008-08-13: Version 0.2.2
1973
1974 Improved performance of garbage collection by changing the way
1975 we use the marking stack in the event of stack overflow during
1976 full garbage collection and by changing the way we mark roots.
1977
1978 Cleaned up ARM version by removing top of stack caching and by
1979 introducing push/pop elimination.
1980
1981 Cleaned up the way runtime functions are called to allow
1982 runtime calls with no arguments.
1983
1984 Changed Windows build options to make sure that exceptions are
1985 disabled and that optimization flags are enabled.
1986
1987 Added first version of Visual Studio project files.
1988
1989
19902008-08-06: Version 0.2.1
1991
1992 Improved performance of unary addition by avoiding runtime calls.
1993
1994 Fixed the handling of '>' and '<=' to use right-to-left conversion
1995 and left-to-right evaluation as specified by ECMA-262.
1996
1997 Fixed a branch elimination bug on the ARM platform where incorrect
1998 code was generated because of overly aggressive branch
1999 elimination.
2000
2001 Improved performance of code that repeatedly assigns the same
2002 function to the same property of different objects with the same
2003 map.
2004
2005 Untangled DEBUG and ENABLE_DISASSEMBLER defines. The disassembler
2006 no longer expects DEBUG to be defined.
2007
2008 Added platform-nullos.cc to serve as the basis for new platform
2009 implementations.
2010
2011
20122008-07-30: Version 0.2.0
2013
2014 Changed all text files to have native svn:eol-style.
2015
2016 Added a few samples and support for building them. The samples
2017 include a simple shell that can be used to benchmark and test V8.
2018
2019 Changed V8::GetVersion to return the version as a string.
2020
2021 Added source for lazily loaded scripts to snapshots and made
2022 serialization non-destructive.
2023
2024 Improved ARM support by fixing the write barrier code to use
2025 aligned loads and stores and by removing premature locals
2026 optimization that relied on broken support for callee-saved
2027 registers (removed).
2028
2029 Refactored the code for marking live objects during garbage
2030 collection and the code for allocating objects in paged
2031 spaces. Introduced an abstraction for the map word of a heap-
2032 allocated object and changed the memory allocator to allocate
2033 executable memory only for spaces that may contain code objects.
2034
2035 Moved StringBuilder to utils.h and ScopedLock to platform.h, where
2036 they can be used by debugging and logging modules. Added
2037 thread-safe message queues for dealing with debugger events.
2038
2039 Fixed the source code reported by toString for certain builtin
2040 empty functions and made sure that the prototype property of a
2041 function is enumerable.
2042
2043 Improved performance of converting values to condition flags in
2044 generated code.
2045
2046 Merged disassembler-{arch} files.
2047
2048
20492008-07-28: Version 0.1.4
2050
2051 Added support for storing JavaScript stack traces in a stack
2052 allocated buffer to make it visible in shallow core dumps.
2053 Controlled by the --preallocate-message-memory flag which is
2054 disabled by default.
2055
2056
20572008-07-25: Version 0.1.3
2058
2059 Fixed bug in JSObject::GetPropertyAttributePostInterceptor where
2060 map transitions would count as properties.
2061
2062 Allowed aliased eval invocations by treating them as evals in the
2063 global context. This may change in the future.
2064
2065 Added support for accessing the last entered context through the
2066 API and renamed Context::Current to Context::GetCurrent and
2067 Context::GetSecurityContext to Context::GetCurrentSecurityContext.
2068
2069 Fixed bug in the debugger that would cause the debugger scripts to
2070 be recursively loaded and changed all disabling of interrupts to
2071 be block-structured.
2072
2073 Made snapshot data read-only to allow it to be more easily shared
2074 across multiple users of V8 when linked as a shared library.
2075
2076
20772008-07-16: Version 0.1.2
2078
2079 Fixed building on Mac OS X by recognizing i386 and friends as
2080 IA-32 platforms.
2081
2082 Added propagation of stack overflow exceptions that occur while
2083 compiling nested functions.
2084
2085 Improved debugger with support for recursive break points and
2086 handling of exceptions that occur in the debugger JavaScript code.
2087
2088 Renamed GetInternal to GetInternalField and SetInternal to
2089 SetInternalField in the API and moved InternalFieldCount and
2090 SetInternalFieldCount from FunctionTemplate to ObjectTemplate.
2091
2092
20932008-07-09: Version 0.1.1
2094
2095 Fixed bug in stack overflow check code for IA-32 targets where a
2096 non-tagged value in register eax was pushed to the stack.
2097
2098 Fixed potential quadratic behavior when converting strings to
2099 numbers.
2100
2101 Fixed bug where the return value from Object::SetProperty could
2102 end up being the property holder instead of the written value.
2103
2104 Improved debugger support by allowing nested break points and by
2105 dealing with stack-overflows when compiling functions before
2106 setting break points in them.
2107
2108
21092008-07-03: Version 0.1.0
2110
2111 Initial export.
2112