1 2013-08-14: Version 3.20.17 2 3 Fixed Math.round/floor that had bogus Smi representation 4 (Chromium issue 272564) 5 6 Performance and stability improvements on all platforms. 7 8 9 2013-08-13: Version 3.20.16 10 11 Fixed bug in HPhi::SimplifyConstantInput (Chromium issue 269679) 12 13 Fixed gcmole bugs in i18n code (issue 2745) 14 15 ia32: Calls to the TranscendentalCacheStub must ensure that esi is 16 set (issue 2827) 17 18 Made sure polymorphic element access creates non-replaying 19 phis. (issue 2815) 20 21 Allowed HPhis to have an invalid merge index. (issue 2815) 22 23 Fixed smi-based math floor. (Chromium issue 270268) 24 25 Deprecated self and total time getters and total sample count 26 getter on CpuProfileNode. (Chromium issue 267595) 27 28 Fixed Object.freeze, Object.observe wrt CountOperation and 29 CompoundAssignment. (issue 2774,2779) 30 31 Performance and stability improvements on all platforms. 32 33 34 2013-08-07: Version 3.20.14 35 36 Exposed eternal handle api. 37 38 Bugfix to solve issues with enabling V8 typed arrays in Blink. 39 40 Fixed Array index dehoisting. (Chromium issue 264203) 41 42 Updated Array Iterator to use numeric indexes (issue 2818) 43 44 Return start/end profiling time in microseconds instead of milliseconds 45 (issue 2824) 46 47 Performance and stability improvements on all platforms. 48 49 50 2013-08-06: Version 3.20.14 51 52 Added new Harmony methods to Array.prototype object. 53 (issue 2776,v8:2777) 54 55 Performance and stability improvements on all platforms. 56 57 58 2013-08-01: Version 3.20.12 59 60 Removed buggy ToNumber truncation (partial fix for issue 2813) 61 62 Calling Map etc without new should throw TypeError (issue 2819) 63 64 Fixed a crash for large code objects on ARM (Chromium issue 2736) 65 66 Fixed stale unhandlified value in JSObject::SetPropertyForResult. 67 (Chromium issue 265894) 68 69 Added new Harmony methods to String.prototype object. 70 (issue 2796,v8:2797,v8:2798,v8:2799) 71 72 Performance and stability improvements on all platforms. 73 74 75 2013-07-30: Version 3.20.11 76 77 Performance and stability improvements on all platforms. 78 79 80 2013-07-29: Version 3.20.10 81 82 Performance and stability improvements on all platforms. 83 84 85 2013-07-26: Version 3.20.9 86 87 Check that ExternalString objects get aligned resources. 88 89 Fixed JSArray-specific length lookup in polymorphic array handling 90 (Chromium issues 263276, 263905). 91 92 Performance and stability improvements on all platforms. 93 94 95 2013-07-24: Version 3.20.8 96 97 Deprecated v8::V8::Pause/ResumeProfiler. 98 99 Fixed Chromium issues 247688, 258519 and 260203. 100 101 Performance and stability improvements on all platforms. 102 103 104 2013-07-22: Version 3.20.7 105 106 Deprecated some debugger methods. 107 108 Fixed wrong bailout id in polymorphic stores (Chromium issue 259787). 109 110 Fixed data race in SamplingCircularQueue (Chromium issue 251218). 111 112 Fixed type feedback in presence of negative lookups 113 (Chromium issue 252797). 114 115 Do not materialize context-allocated values for debug-evaluate 116 (Chromium issue 259300). 117 118 Synchronized Compare-Literal behavior in FullCodegen and Hydrogen 119 (Chromium issue 260345). 120 121 Performance and stability improvements on all platforms. 122 123 124 2013-07-17: Version 3.20.6 125 126 Try to remove invalidated stubs before falling back to checking the 127 constant state (Chromium issue 260585). 128 129 Fixed gyp_v8 to work with use_system_icu=1 (issue 2475). 130 131 Fixed sloppy-mode 'const' under Harmony flag (Chromium issue 173361). 132 133 Use internal array as API function cache (Chromium issue 260106). 134 135 Fixed possible stack overflow in range analysis 136 (Chromium issue 259452). 137 138 Performance and stability improvements on all platforms. 139 140 141 2013-07-15: Version 3.20.5 142 143 Ensured that the length of frozen arrays is immutable 144 (issue 2711, Chromium issue 259548). 145 146 Performance and stability improvements on all platforms. 147 148 149 2013-07-10: Version 3.20.4 150 151 Fixed garbage-collection issue that causes a crash on ARM 152 (Chromium issue 254570) 153 154 Performance and stability improvements on all platforms. 155 156 157 2013-07-08: Version 3.20.3 158 159 Performance and stability improvements on all platforms. 160 161 162 2013-07-05: Version 3.20.2 163 164 Remove deprecated heap profiler methods from V8 public API 165 166 Mark i18n functions as native and set proper names 167 (issue 2745) 168 169 Correctly report stack trace when current function is FunctionApply 170 builtin (Chromium issue 252097) 171 172 Enable GDBJIT interface for standalone by default. 173 174 Fix debuggersupport=off build. (issue 2754) 175 176 Introduce -m64 flag for making x64 when the default gcc compiler is for 177 X32 178 179 Performance and stability improvements on all platforms. 180 181 182 2013-07-02: Version 3.20.1 183 184 Implemented WeakMap.prototype.clear function. (issue 2753) 185 186 Ensure CheckInitialized is present independent of define. 187 (Chromium issue 255779) 188 189 Performance and stability improvements on all platforms. 190 191 192 2013-06-28: Version 3.20.0 193 194 Migrated several tests from blink to V8 repository. 195 196 Allowed users of the V8 API to distinguish between unset and undefined 197 HiddenValues (issue 2746). 198 199 Deprecated old style callbacks in the V8 API. 200 201 Turned on parallel recompilation. 202 203 Performance and stability improvements on all platforms. 204 205 206 2013-06-18: Version 3.19.18 207 208 Fixed read-only attribute of Function.length in strict mode. 209 (issue 2705) 210 211 Fixed Runtime_SetProperty to properly handle OOM failures 212 (Chromium issue 249873) 213 214 Emit deprecated check for constant function transitions. 215 (Chromium issue 250609) 216 217 Made MathFloorOfDiv optimization trigger more often 218 (Issue 2205) 219 220 Make more GCs in idle notification handler. 221 (Chromium issue 241815) 222 223 Increased default type info threshold. 224 (Issue 2730) 225 226 Performance and stability improvements on all platforms. 227 228 229 2013-06-14: Version 3.19.16 230 231 Performance and stability improvements on all platforms. 232 233 234 2013-06-13: Version 3.19.15 235 236 Performance and stability improvements on all platforms. 237 238 239 2013-06-13: Version 3.19.14 240 241 Fixed crashes when calling new Array(a) with a single argument that 242 could result in creating a holey array with a packed elements kind. 243 (Chromium issue 245480) 244 245 Fixed issues in parallel compilation. 246 (Chromium issue 248076) 247 248 Performance and stability improvements on all platforms. 249 250 251 2013-06-11: Version 3.19.13 252 253 Performance and stability improvements on all platforms. 254 255 256 2013-06-10: Version 3.19.12 257 258 Fixed arguments array access. (Chromium issue 247303) 259 260 Fixed bug in LookupForWrite. (Chromium issue 242332) 261 262 Performance and stability improvements on all platforms. 263 264 265 2013-06-07: Version 3.19.11 266 267 Performance and stability improvements on all platforms. 268 269 270 2013-06-06: Version 3.19.10 271 272 Performance and stability improvements on all platforms. 273 274 275 2013-06-05: Version 3.19.9 276 277 Implemented Load IC support for loading properties from primitive 278 values to avoid perpetual soft deopts. (Chromium issue 242512) 279 280 Implemented Freeing of PerThreadAssertData when possible to avoid 281 memory leak. (Chromium issue 246567) 282 283 Removed V8_USE_OLD_STYLE_PERSISTENT_HANDLE_VISITORS. 284 285 Performance and stability improvements on all platforms. 286 287 288 2013-06-03: Version 3.19.8 289 290 Fixed bug with inlining 'Array' function. (Chromium issue 244461) 291 292 Fixed initialization of literal objects. (Chromium issue 245424) 293 294 Fixed function name inferred inside closures. (Chromium issue 224884) 295 296 Performance and stability improvements on all platforms. 297 298 299 2013-05-31: Version 3.19.7 300 301 Added support for //# sourceURL similar to deprecated //@ sourceURL one. 302 (issue 2702) 303 304 Made sure IfBuilder::Return clears the current block. 305 (Chromium issue 243868) 306 307 Fixed two CPU profiler tests on ARM and MIPS simulators 308 (issue 2628) 309 310 Fixed idle incremental GC for large objects. 311 (Chromium issue 241815) 312 313 Disabled --optimize-constructed-arrays due to crashes 314 (Chromium issue 244461) 315 316 Performance and stability improvements on all platforms. 317 318 319 2013-05-28: Version 3.19.6 320 321 Fixed IfBuilder::Deopt to clear the current block 322 (Chromium issue 243868). 323 324 Performance and stability improvements on all platforms. 325 326 327 2013-05-27: Version 3.19.5 328 329 Reset regexp parser flag after scanning ahead for capture groups. 330 (issue 2690) 331 332 Removed flakiness in test-cpu-profiler/SampleWhenFrameIsNotSetup. 333 (issue 2628) 334 335 Performance and stability improvements on all platforms. 336 337 338 2013-05-24: Version 3.19.4 339 340 Fixed edge case in stack trace formatting. (Chromium issue 237617) 341 342 Fixed embedded new-space pointer in LCmpObjectEqAndBranch. (Chromium 343 issue 240032) 344 345 Made Object.freeze fast (issue 1858, Chromium issue 115960) 346 347 Fixed bogus deopt in BuildEmitDeepCopy for holey arrays. (Chromium issue 348 242924) 349 350 Performance and stability improvements on all platforms. 351 352 353 2013-05-22: Version 3.19.3 354 355 Performance and stability improvements on all platforms. 356 357 358 2013-05-17: Version 3.19.2 359 360 Fill in one-word-fillers for the unused property fields 361 (Chromium issue 240056). 362 363 Removed use_system_v8 logic from the mainline gyp file 364 (Chromium issue 226860). 365 366 Skip CPU profiler samples where top function's stack frame is not 367 set up properly (issue 2628). 368 369 Performance and stability improvements on all platforms. 370 371 372 2013-05-14: Version 3.19.1 373 374 Fixed missing hole check for loads from Smi arrays when all uses are 375 changes (Chromium issue 233737) 376 377 Performance and stability improvements on all platforms. 378 379 380 2013-05-10: Version 3.19.0 381 382 Deprecated Context::New which returns Persistent. 383 384 Added Persistent<T>::Reset which disposes the handle and redirects it to 385 point to another object. 386 387 Deprecated WriteAscii and MayContainNonAscii. 388 389 Exposed AssertNoAllocation to API. 390 391 Performance and stability improvements on all platforms. 392 393 394 2013-04-30: Version 3.18.5 395 396 Allowed setting debugger breakpoints on CompareNilICs (issue 2660) 397 398 Fixed beyond-heap load on x64 Crankshafted StringCharFromCode 399 (Chromium issue 235311) 400 401 Change 'Parse error' to three more informative messages. 402 (Chromium issue 2636) 403 404 Performance and stability improvements on all platforms. 405 406 407 2013-04-26: Version 3.18.4 408 409 Added a preliminary API for ES6 ArrayBuffers 410 411 Replaced qsort with std::sort. (Chromium issue 2639) 412 413 Performance and stability improvements on all platforms. 414 415 416 2013-04-24: Version 3.18.3 417 418 Exposed the GC under a name that is less collision prone than window.gc. 419 (issue 2641) 420 421 Do not emit double values at their use sites. (Chromium issue 234101) 422 423 Added methods to allow resuming execution after calling 424 TerminateExecution(). (issue 2361) 425 426 Performance and stability improvements on all platforms. 427 428 429 2013-04-22: Version 3.18.2 430 431 OS::MemMove/OS::MemCopy: Don't call through to generated code when size 432 == 0 to avoid prefetching invalid memory (Chromium issue 233500) 433 434 Removed heap snapshot size limit. (Chromium issue 232305) 435 436 Performance and stability improvements on all platforms. 437 438 439 2013-04-18: Version 3.18.1 440 441 Removed SCons related files and deprecated test suite configurations. 442 443 Improved handling of unary plus (issue 2527). 444 445 Performance and stability improvements on all platforms. 446 447 448 2013-04-17: Version 3.18.0 449 450 Enabled pretenuring of fast literals in high promotion mode. 451 452 Removed preparser library; link preparser executable against full V8. 453 454 Fixed set-up of intrinsic's 'constructor' properties. 455 (Chromium issue 229445) 456 457 ES6 symbols: extended V8 API to support symbols (issue 2158). 458 459 Removed ARM support for VFP2. 460 461 Made __proto__ a real JavaScript accessor property. 462 (issue 1949 and issue 2606) 463 464 Performance and stability improvements on all platforms. 465 466 467 2013-04-04: Version 3.17.16 468 469 Stack trace API: poison stack frames below the first strict mode frame. 470 (issue 2564) 471 472 Made Isolate::GetHeapStatistics robust against half-initialized 473 isolates (Chromium issue 2591). 474 475 Finished implementation of ES6 symbols aka. private names (issue 2158). 476 477 Performance and stability improvements on all platforms. 478 479 480 2013-03-21: Version 3.17.15 481 482 Rolled back API changes to maintain compatibility with older 483 3.17.x versions of V8. 484 485 Disable zapping of global handles in release mode. 486 487 Always mark the entire valid prefix of the descriptor array. 488 (Chromium issue 196331) 489 490 Use internal memcpy for CopyWords and when copying code. 491 (Chromium issue 196330) 492 493 Performance and stability improvements on all platforms. 494 495 496 2013-03-20: Version 3.17.14 497 498 Use internal memcpy when initializing code objects. 499 (Chromium issue 196330) 500 501 Disabled weak embedded maps because of crashes. 502 (Chromium issues 172489, 217858) 503 504 Performance and stability improvements on all platforms. 505 506 507 2013-03-19: Version 3.17.13 508 509 Turned Flags into a uint32_t typedef (Chromium issue 194749). 510 511 Performance and stability improvements on all platforms. 512 513 514 2013-03-18: Version 3.17.12 515 516 Unified kMaxArguments with number of bits used to encode it. 517 (Chromium issue 211741) 518 519 Fixed detection of |handle_smi| case in 520 HOptimizedGraphBuilder::HandlePolymorphicCallNamed. 521 (Chromium issue 196583) 522 523 Performance and stability improvements on all platforms. 524 525 526 2013-03-15: Version 3.17.11 527 528 Added a version of the v8::HandleScope constructor with an v8::Isolate 529 parameter and made AdjustAmountOfExternalAllocatedMemory an instance 530 method of v8::Isolate. 531 (issue 2487) 532 533 Fixed two register allocator bugs (off-by-one error/failure 534 propagation). (issue 2576) 535 536 Fixed huge heap snapshot when a heavily shared context has many 537 variables. (Chromium issue 145687) 538 539 Performance and stability improvements on all platforms. 540 541 542 2013-03-13: Version 3.17.10 543 544 Fixed heap snapshot creation for Harmony collections. (issue 2535) 545 546 Fixed register allocation corner case. (Chromium issue 177883) 547 548 Performance and stability improvements on all platforms. 549 550 551 2013-03-08: Version 3.17.9 552 553 Restored Function()'s expected string representation. (issue 2470) 554 555 Enabled deprecatations (again). (issue 2487) 556 557 Avoid bool to Oddball conversions by being lazy. (issue 2491) 558 559 Added %p option to --logfile. 560 561 Hardened Function()'s parsing of function literals. (issue 2470) 562 563 ES6 symbols: Refine test for getOwnPropertyNames. (issue 2158) 564 565 Performance and stability improvements on all platforms. 566 567 568 2013-03-07: Version 3.17.8 569 570 Added missing license headers. (Chromium issue 98597) 571 572 Inserted missing type cast in JSON.stringify. (issue 2570) 573 574 Reverted "Send SIGPROF signals on the profiler event processor thread" 575 (issue 2571) 576 577 Fixed Array.length, String.length and Function.prototype LoadICs on x64. 578 (issue 2568) 579 580 ES6 symbols: filter symbols form for-in loops and Object.keys. 581 (issue 2158) 582 583 Properly handle misses for StoreArrayLengthStub on ia32 and x64 584 (issue 2566) 585 586 Fixed x32 handling of Atomic64. (Chromium issue chromium-os:36866) 587 588 Removed "library" variable from standalone.gypi. (Chromium issue 111541) 589 590 Fixed HCheckSmiOrInt <-> HBoundsCheck interaction wrt. representations. 591 (issue 2556) 592 593 Enabled zapping of disposed global handles in release mode. 594 (Chromium issue 176056) 595 596 Added workaround for redefinition of __proto__ property. (issue 2565) 597 598 ES6 symbols: Allow symbols as property names. (issue 2158) 599 600 Performance and stability improvements on all platforms. 601 602 603 2013-03-04: Version 3.17.7 604 605 Limited recursion in regexp compilation by a budget. 606 (Chromium issue 178790) 607 608 ES6 symbols: Implemented Symbol intrinsic and basic functionality 609 (issue 2158) 610 611 Performance and stability improvements on all platforms. 612 613 614 2013-02-28: Version 3.17.6 615 616 Fixed materialization of arguments objects with unknown values. 617 (Chromium issue 163530) 618 619 Set default number of sweeper threads to at most four. 620 621 Performance and stability improvements on all platforms. 622 623 624 2013-02-27: Version 3.17.5 625 626 Made __proto__ a foreign callback on Object.prototype. 627 (issue 621, issue 1949 and issue 2441) 628 629 Performance and stability improvements on all platforms. 630 631 632 2013-02-25: Version 3.17.4 633 634 Performance and stability improvements on all platforms. 635 636 637 2013-02-21: Version 3.17.3 638 639 Performance and stability improvements on all platforms. 640 641 642 2013-02-19: Version 3.17.2 643 644 Removed bogus check for TOP register in deoptimizer. 645 (Chromium issue 176943) 646 647 Made the Isolate parameter mandatory for internal HandleScopes. 648 (issue 2487) 649 650 Fixed f.apply() optimization when declared arguments are mutated. 651 (issue 2539) 652 653 Performance and stability improvements on all platforms. 654 655 656 2013-02-14: Version 3.17.1 657 658 Performance and stability improvements on all platforms. 659 660 661 2013-02-13: Version 3.17.0 662 663 Enabled parallel sweeping. 664 665 Don't try to unlink instructions twice during GVN 666 (Chromium issue 175141) 667 668 Fixed code flusher disabling while marking incrementally. 669 (Chromium issue 173458, 168582) 670 671 Don't use TLS for space iterators. 672 (issue 2531) 673 674 Added new GetHeapStatistics API entry and deprecated old one. 675 676 Fixed DoubleStackSlot-to-DoubleStackSlot moves on ia32. Unified 677 platform-independent code. 678 (Chromium issue 173907) 679 680 Added --trace-array-abuse to help find OOB accesses. 681 682 Performance and stability improvements on all platforms. 683 684 685 2013-02-06: Version 3.16.14 686 687 Performance and stability improvements on all platforms. 688 689 690 2013-02-04: Version 3.16.13 691 692 Tagged stubs that rely on instance types as MEGAMORPHIC. 693 (Chromium issue 173974) 694 695 Fixed clearing of dead dependent codes and verifing of weak 696 embedded maps on full GC. (Chromium issue 172488,172489) 697 698 Made the arm port build cleanly with Clang. 699 700 Performance and stability improvements on all platforms. 701 702 703 2013-01-31: Version 3.16.12 704 705 Performance and stability improvements on all platforms. 706 707 708 2013-01-30: Version 3.16.11 709 710 Put making embedded maps in optimized code weak behind a flag. 711 (Chromium issue 172488,172489) 712 713 Performance and stability improvements on all platforms. 714 715 716 2013-01-25: Version 3.16.10 717 718 Avoid excessive memory usage during redundant phi elimination. 719 (issue 2510) 720 721 Fixed additional spec violations wrt RegExp.lastIndex. 722 (issue 2437) 723 724 Added Isolate parameter to Persistent class. 725 (issue 2487) 726 727 Performance and stability improvements on all platforms. 728 729 730 2013-01-24: Version 3.16.9 731 732 Made embedded maps in optimized code weak. 733 (issue 2073) 734 735 Fixed corner case when JSFunction is evicted from flusher. 736 (Chromium issue 168801) 737 738 Correctly set kCanBeDivByZero flag for HMathFloorOfDiv. 739 (Chromium issue 171641) 740 741 Performance and stability improvements on all platforms. 742 743 744 2013-01-23: Version 3.16.8 745 746 Correctly reset lastIndex in an RegExp object. 747 (Chromium issue 170856) 748 749 Added a workaround for Windows compilation problems related to V8EXPORT. 750 (issue 2507) 751 752 tools/run-tests.py: shlex.split() the value of --command-prefix 753 (Chromium issue 171553) 754 755 Fixed pattern detection for replacing shifts by rotation. 756 (Chromium issue 2499) 757 758 Performance and stability improvements on all platforms. 759 760 761 2013-01-21: Version 3.16.7 762 763 Removed <(library) usage from v8.gyp. 764 (Chromium issue 111541) 765 766 Fixed out of bounds memory access in TestJSArrayForAllocationSiteInfo. 767 (Chromium issue 169928) 768 769 Performance and stability improvements on all platforms. 770 771 772 2013-01-18: Version 3.16.6 773 774 Made the Isolate parameter mandatory in Locker and Unlocker classes. 775 (issue 2487) 776 777 Avoid pointer underflow in CopyCharsUnsigned. 778 (issue 2493) 779 780 Generate shim headers when using system v8. 781 (Chromium issue 165264) 782 783 Fixed arguments materialization for inlined apply(). 784 (issue 2489) 785 786 Sync'ed laziness between BuildFunctionInfo and MakeFunctionInfo. 787 (Chromium issue 147497) 788 789 Added sanity check to CodeFlusher::AddCandidate. 790 (Chromium issue 169209) 791 792 Performance and stability improvements on all platforms. 793 794 795 2013-01-15: Version 3.16.5 796 797 Removed deprecated functions from V8's external API. 798 799 Prepared API for WebKit use of Latin-1. 800 801 Fixed V8 issue 2486. 802 803 Fixed Chromium issue 169723. 804 805 Performance and stability improvements on all platforms. 806 807 808 2013-01-11: Version 3.16.4 809 810 Fixed Chromium issues 168545 and 169209. 811 812 Performance and stability improvements on all platforms. 813 814 815 2013-01-09: Version 3.16.3 816 817 Improved GC performance when moving parts of a FixedArray (issue 2452). 818 819 Enabled readline on d8 while building a shared lib (issue 1781). 820 821 Fixed missing exception check in typed array constructor 822 (Chromium issue 168545). 823 824 Check for read-only-ness when preparing for array sort (issue 2419). 825 826 Performance and stability improvements on all platforms. 827 828 829 2013-01-04: Version 3.16.2 830 831 Added Makefile options to build for the Raspberry Pi (armv7=0, 832 arm_fpu=vfp2). 833 834 Performance and stability improvements on all platforms. 835 836 837 2012-12-27: Version 3.16.1 838 839 Fixed x64 MathMinMax for negative untagged int32 arguments. 840 (Chromium issue 164442) 841 842 Fixed FloatingPointHelper::CheckSSE2OperandIsInt32. 843 (issue 2458) 844 845 Performance and stability improvements on all platforms. 846 847 848 2012-12-21: Version 3.16.0 849 850 V8_Fatal now prints C++ stack trace in debug mode. 851 852 Added HTML-based tick processor. 853 854 Continued implementation of Object.observe (V8 issue 2409). 855 856 Fixed V8 issues 2243, 2340, 2393, 2399, 2457. 857 858 Fixed Chromium issues 125308, 165637, 166379, 166553. 859 860 Performance and stability improvements on all platforms. 861 862 863 2012-12-10: Version 3.15.11 864 865 Define CAN_USE_VFP2/3_INSTRUCTIONS based on arm_neon and arm_fpu GYP 866 flags. 867 868 Performance and stability improvements on all platforms. 869 870 871 2012-12-07: Version 3.15.10 872 873 Enabled optimisation of functions inside eval. (issue 2315) 874 875 Fixed spec violations in methods of Number.prototype. (issue 2443) 876 877 Added GCTracer metrics for a scavenger GC for DOM wrappers. 878 879 Performance and stability improvements on all platforms. 880 881 882 2012-12-06: Version 3.15.9 883 884 Fixed candidate eviction in code flusher. 885 (Chromium issue 159140) 886 887 Iterate through all arguments for side effects in Math.min/max. 888 (issue 2444) 889 890 Fixed spec violations related to regexp.lastIndex 891 (issue 2437, issue 2438) 892 893 Performance and stability improvements on all platforms. 894 895 896 2012-12-04: Version 3.15.8 897 898 Enforced stack allocation of TryCatch blocks. 899 (issue 2166,chromium:152389) 900 901 Fixed external exceptions in external try-catch handlers. 902 (issue 2166) 903 904 Activated incremental code flushing by default. 905 906 Performance and stability improvements on all platforms. 907 908 909 2012-11-30: Version 3.15.7 910 911 Activated code aging by default. 912 913 Included more information in --prof log. 914 915 Removed eager sweeping for lazy swept spaces. Try to find in 916 SlowAllocateRaw a bounded number of times a big enough memory slot. 917 (issue 2194) 918 919 Performance and stability improvements on all platforms. 920 921 922 2012-11-26: Version 3.15.6 923 924 Ensure double arrays are filled with holes when extended from 925 variations of empty arrays. (Chromium issue 162085) 926 927 Performance and stability improvements on all platforms. 928 929 930 2012-11-23: Version 3.15.5 931 932 Fixed JSON.stringify for objects with interceptor handlers. 933 (Chromium issue 161028) 934 935 Fixed corner case in x64 compare stubs. (issue 2416) 936 937 Performance and stability improvements on all platforms. 938 939 940 2012-11-16: Version 3.15.4 941 942 Fixed Array.prototype.join evaluation order. (issue 2263) 943 944 Perform CPU sampling by CPU sampling thread only iff processing thread 945 is not running. (issue 2364) 946 947 When using an Object as a set in Object.getOwnPropertyNames, null out 948 the proto. (issue 2410) 949 950 Disabled EXTRA_CHECKS in Release build. 951 952 Heap explorer: Show representation of strings. 953 954 Removed 'type' and 'arguments' properties from Error object. 955 (issue 2397) 956 957 Added atomics implementation for ThreadSanitizer v2. 958 (Chromium issue 128314) 959 960 Fixed LiveEdit crashes when object/array literal is added. (issue 2368) 961 962 Performance and stability improvements on all platforms. 963 964 965 2012-11-13: Version 3.15.3 966 967 Changed sample shell to send non-JS output (e.g. errors) to stderr 968 instead of stdout. 969 970 Correctly check for stack overflow even when interrupt is pending. 971 (issue 214) 972 973 Collect stack trace on stack overflow. (issue 2394) 974 975 Performance and stability improvements on all platforms. 976 977 978 2012-11-12: Version 3.15.2 979 980 Function::GetScriptOrigin supplies sourceURL when script name is 981 not available. (Chromium issue 159413) 982 983 Made formatting error message side-effect-free. (issue 2398) 984 985 Fixed length check in JSON.stringify. (Chromium issue 160010) 986 987 ES6: Added support for Set and Map clear method (issue 2400) 988 989 Fixed slack tracking when instance prototype changes. 990 (Chromium issue 157019) 991 992 Fixed disabling of code flusher while marking. (Chromium issue 159140) 993 994 Added a test case for object grouping in a scavenger GC (issue 2077) 995 996 Support shared library build of Android for v8. 997 (Chromium issue 158821) 998 999 ES6: Added support for size to Set and Map (issue 2395) 1000 1001 Performance and stability improvements on all platforms. 1002 1003 1004 2012-11-06: Version 3.15.1 1005 1006 Put incremental code flushing behind a flag. (Chromium issue 159140) 1007 1008 Performance and stability improvements on all platforms. 1009 1010 1011 2012-10-31: Version 3.15.0 1012 1013 Loosened aligned code target requirement on ARM (issue 2380) 1014 1015 Fixed JSON.parse to treat leading zeros correctly. 1016 (Chromium issue 158185) 1017 1018 Performance and stability improvements on all platforms. 1019 1020 1021 2012-10-22: Version 3.14.5 1022 1023 Killed off the SCons based build. 1024 1025 Added a faster API for creating v8::Integer objects. 1026 1027 Speeded up function deoptimization by avoiding quadratic pass over 1028 optimized function list. (Chromium issue 155270) 1029 1030 Always invoke the default Array.sort functions from builtin functions. 1031 (issue 2372) 1032 1033 Reverted recent CPU profiler changes because they broke --prof. 1034 (issue 2364) 1035 1036 Switched code flushing to use different JSFunction field. 1037 (issue 1609) 1038 1039 Performance and stability improvements on all platforms. 1040 1041 1042 2012-10-15: Version 3.14.4 1043 1044 Allow evals for debugger even if they are prohibited in the debugee 1045 context. (Chromium issue 154733) 1046 1047 Enabled --verify-heap in release mode (issue 2120) 1048 1049 Performance and stability improvements on all platforms. 1050 1051 1052 2012-10-11: Version 3.14.3 1053 1054 Use native context to retrieve ErrorMessageForCodeGenerationFromStrings 1055 (Chromium issue 155076). 1056 1057 Bumped variable limit further to 2^17 (Chromium issue 151625). 1058 1059 Performance and stability improvements on all platforms. 1060 1061 1062 2012-10-10: Version 3.14.2 1063 1064 ARM: allowed VFP3 instructions when hardfloat is enabled. 1065 (Chromium issue 152506) 1066 1067 Fixed instance_descriptors() and PushStackTraceAndDie regressions. 1068 (Chromium issue 151749) 1069 1070 Made GDBJIT interface compile again. (issue 1804) 1071 1072 Fixed Accessors::FunctionGetPrototype's proto chain traversal. 1073 (Chromium issue 143967) 1074 1075 Made sure that names of temporaries do not clash with real variables. 1076 (issue 2322) 1077 1078 Rejected local module declarations. (Chromium issue 150628) 1079 1080 Rejected uses of lexical for-loop variable on the RHS. (issue 2322) 1081 1082 Fixed slot recording of code target patches. 1083 (Chromium issue 152615,chromium:144230) 1084 1085 Changed the Android makefile to use GCC 4.6 instead of GCC 4.4.3. 1086 1087 Performance and stability improvements on all platforms. 1088 1089 1090 2012-10-01: Version 3.14.1 1091 1092 Don't set -m32 flag when compiling with Android ARM compiler. 1093 (Chromium issue 143889) 1094 1095 Restore the descriptor array before returning allocation failure. 1096 (Chromium issue 151750) 1097 1098 Lowered kMaxVirtualRegisters (v8 issue 2139, Chromium issues 123822 and 1099 128252). 1100 1101 Pull more recent gyp in 'make dependencies'. 1102 1103 Made sure that the generic KeyedStoreIC changes length and element_kind 1104 atomically (issue 2346). 1105 1106 Bumped number of allowed variables per scope to 65535, to address GWT. 1107 (Chromium issue 151625) 1108 1109 Support sourceURL for dynamically inserted scripts (issue 2342). 1110 1111 Performance and stability improvements on all platforms. 1112 1113 1114 2012-09-20: Version 3.14.0 1115 1116 Fixed missing slot recording during clearing of CallICs. 1117 (Chromium issue 144230) 1118 1119 Fixed LBoundsCheck on x64 to handle (stack slot + constant) correctly. 1120 (Chromium issue 150729) 1121 1122 Fixed minus zero test. (Issue 2133) 1123 1124 Fixed setting array length to zero for slow elements. 1125 (Chromium issue 146910) 1126 1127 Fixed lost arguments dropping in HLeaveInlined. 1128 (Chromium issue 150545) 1129 1130 Fixed casting error for receiver of interceptors. 1131 (Chromium issue 149912) 1132 1133 Throw a more descriptive exception when blocking 'eval' via CSP. 1134 (Chromium issue 140191) 1135 1136 Fixed debugger's eval when close to stack overflow. (issue 2318) 1137 1138 Added checks to live edit. (issue 2297) 1139 1140 Switched on code compaction on incremental GCs. 1141 1142 Fixed caching of optimized code for OSR. (issue 2326) 1143 1144 Not mask exception thrown by toString in String::UtfValue etc. 1145 (issue 2317) 1146 1147 Fixed API check for length of external arrays. (Chromium issue 148896) 1148 1149 Ensure correct enumeration indices in the dict (Chromium issue 148376) 1150 1151 Correctly initialize regexp global cache. (Chromium issue 148378) 1152 1153 Fixed arguments object materialization during deopt. (issue 2261) 1154 1155 Introduced new API to expose external string resource regardless of 1156 encoding. 1157 1158 Fixed CHECK failure in LCodeGen::DoWrapReceiver when 1159 --deopt-every-n-times flag is present 1160 (Chromium issue 148389) 1161 1162 Fixed edge case of extension with NULL as source string. 1163 (Chromium issue 144649) 1164 1165 Fixed array index dehoisting. (Chromium issue 141395) 1166 1167 Performance and stability improvements on all platforms. 1168 1169 1170 2012-09-11: Version 3.13.7 1171 1172 Enable/disable LiveEdit using the (C++) debug API. 1173 1174 Performance and stability improvements on all platforms. 1175 1176 1177 2012-09-06: Version 3.13.6 1178 1179 Added validity checking to API functions and calls. 1180 1181 Disabled accessor inlining (Chromium issue 134609). 1182 1183 Fixed bug in Math.min/max in optimized code (Chromium issue 145961). 1184 1185 Directly use %ObjectKeys in json stringify (Chromium issue 2312). 1186 1187 Fixed VS2005 build (issue 2313). 1188 1189 Activated fixed ES5 readonly semantics by default. 1190 1191 Added hardfp flag to the Makefile. 1192 1193 Performance and stability improvements on all platforms. 1194 1195 1196 2012-08-29: Version 3.13.5 1197 1198 Release stack trace data after firing Error.stack accessor. 1199 (issue 2308) 1200 1201 Added a new API V8::SetJitCodeEventHandler to push code name and 1202 location to users such as profilers. 1203 1204 Allocate block-scoped global bindings to global context. 1205 1206 Performance and stability improvements on all platforms. 1207 1208 1209 2012-08-28: Version 3.13.4 1210 1211 Print reason for disabling optimization. Kill --trace-bailout flag. 1212 1213 Provided option to disable full DEBUG build on Android. 1214 1215 Introduced global contexts to represent lexical global scope(s). 1216 1217 Fixed rounding in Uint8ClampedArray setter. (issue 2294) 1218 1219 Performance and stability improvements on all platforms. 1220 1221 1222 2012-08-21: Version 3.13.3 1223 1224 Performance and stability improvements on all platforms. 1225 1226 1227 2012-08-20: Version 3.13.2 1228 1229 Performance and stability improvements on all platforms. 1230 1231 1232 2012-08-16: Version 3.13.1 1233 1234 Performance and stability improvements on all platforms. 1235 1236 1237 2012-08-10: Version 3.13.0 1238 1239 Added histograms for total allocated/live heap size, as well as 1240 allocated size and percentage of total for map and cell space. 1241 1242 Fixed parseInt's octal parsing behavior (ECMA-262 Annex E 15.1.2.2). 1243 (issue 1645) 1244 1245 Added checks for interceptors to negative lookup code in Crankshaft. 1246 (Chromium issue 140473) 1247 1248 Made incremental marking clear ICs and type feedback cells. 1249 1250 Performance and stability improvements on all platforms. 1251 1252 1253 2012-08-01: Version 3.12.19 1254 1255 Performance and stability improvements on all platforms. 1256 1257 1258 2012-07-30: Version 3.12.18 1259 1260 Forced using bit-pattern for signed zero double. (issue 2239) 1261 1262 Made sure double to int conversion is correct. (issue 2260) 1263 1264 Performance and stability improvements on all platforms. 1265 1266 1267 2012-07-27: Version 3.12.17 1268 1269 Always set the callee's context when calling a function from optimized 1270 code. 1271 (Chromium issue 138887) 1272 1273 Fixed building with GCC 3.x 1274 (issue 2016, 2017) 1275 1276 Improved API calls that return empty handles. 1277 (issue 2245) 1278 1279 Performance and stability improvements on all platforms. 1280 1281 1282 2012-07-25: Version 3.12.16 1283 1284 Performance and stability improvements on all platforms. 1285 1286 1287 2012-07-24: Version 3.12.15 1288 1289 Added PRESERVE_ASCII_NULL option to String::WriteAscii. 1290 (issue 2252) 1291 1292 Added dependency to HLoadKeyed* instructions to prevent invalid 1293 hoisting. (Chromium issue 137768) 1294 1295 Enabled building d8 for Android on Mac. 1296 1297 Interpret negative hexadecimal literals as NaN. 1298 (issue 2240) 1299 1300 Expose counters in javascript when using --track-gc-object-stats. 1301 1302 Enabled building and testing V8 on Android IA. 1303 1304 Added --trace-parse flag to parser. 1305 1306 Performance and stability improvements on all platforms. 1307 1308 1309 2012-07-18: Version 3.12.14 1310 1311 Deactivated optimization of packed arrays. 1312 (Chromium issue 137768) 1313 1314 Fixed broken accessor transition. 1315 (Chromium issue 137689) 1316 1317 Performance and stability improvements on all platforms. 1318 1319 1320 2012-07-17: Version 3.12.13 1321 1322 Fixed missing tagging of stack value in finally block. 1323 (Chromium issue 137496) 1324 1325 Added more support for heap analysis. 1326 1327 Performance and stability improvements on all platforms. 1328 1329 1330 2012-07-16: Version 3.12.12 1331 1332 Added an option to the tickprocessor to specify the directory for lib 1333 lookup. 1334 1335 Fixed ICs for slow objects with native accessor (Chromium issue 137002). 1336 1337 Fixed transcendental cache on ARM in optimized code (issue 2234). 1338 1339 New heap inspection tools: counters for object sizes and counts, 1340 histograms for external fragmentation. 1341 1342 Incorporated constness into inferred interfaces (in preparation for 1343 handling imports) (issue 1569). 1344 1345 Performance and stability improvements on all platforms. 1346 1347 1348 2012-07-12: Version 3.12.11 1349 1350 Renamed "mips" arch to "mipsel" in the GYP build. 1351 1352 Fixed computation of call targets on prototypes in Crankshaft. 1353 (Chromium issue 125148) 1354 1355 Removed use of __lookupGetter__ when generating stack trace. 1356 (issue 1591) 1357 1358 Turned on ES 5.2 globals semantics by default. 1359 (issue 1991, Chromium issue 80591) 1360 1361 Synced preparser and parser wrt syntax error in switch..case. 1362 (issue 2210) 1363 1364 Fixed reporting of octal literals in strict mode when preparsing. 1365 (issue 2220) 1366 1367 Fixed inline constructors for Harmony Proxy prototypes. 1368 (issue 2225) 1369 1370 Performance and stability improvements on all platforms. 1371 1372 1373 2012-07-10: Version 3.12.10 1374 1375 Re-enabled and fixed issue with array bounds check elimination 1376 (Chromium issue 132114). 1377 1378 Fixed Debug::Break crash. (Chromium issue 131642) 1379 1380 Added optimizing compiler support for JavaScript getters. 1381 1382 Performance and stability improvements on all platforms. 1383 1384 1385 2012-07-06: Version 3.12.9 1386 1387 Correctly advance the scanner when scanning unicode regexp flag. 1388 (Chromium issue 136084) 1389 1390 Fixed unhandlified code calling Harmony Proxy traps. 1391 (issue 2219) 1392 1393 Performance and stability improvements on all platforms. 1394 1395 1396 2012-07-05: Version 3.12.8 1397 1398 Implemented TypedArray.set and ArrayBuffer.slice in d8. 1399 1400 Performance and stability improvements on all platforms. 1401 1402 1403 2012-07-03: Version 3.12.7 1404 1405 Fixed lazy compilation for strict eval scopes. 1406 (Chromium issue 135066) 1407 1408 Made MACOSX_DEPLOYMENT_TARGET configurable in GYP. 1409 (issue 2151) 1410 1411 Report "hidden properties" in heap profiler for properties case. 1412 (issue 2212) 1413 1414 Activated optimization of packed arrays by default. 1415 1416 Performance and stability improvements on all platforms. 1417 1418 1419 2012-06-29: Version 3.12.6 1420 1421 Cleaned up hardfp ABI detection for ARM (V8 issue 2140). 1422 1423 Extended TypedArray support in d8. 1424 1425 1426 2012-06-28: Version 3.12.5 1427 1428 Fixed lazy parsing heuristics to respect outer scope. 1429 (Chromium issue 135008) 1430 1431 Allow using test-wrapper-gypbuild.py on Windows when no python 1432 interpreter is registered. 1433 1434 Performance and stability improvements on all platforms. 1435 1436 1437 2012-06-27: Version 3.12.4 1438 1439 Removed -fomit-frame-pointer flag from Release builds to make 1440 the stack walkable by TCMalloc (Chromium issue 133723). 1441 1442 Ported r7868 (constant masking) to x64 (issue 1374). 1443 1444 Expose more detailed memory statistics (issue 2201). 1445 1446 Fixed Harmony Maps and WeakMaps for undefined values 1447 (Chromium issue 132744). 1448 1449 Correctly throw reference error in strict mode with ICs disabled 1450 (issue 2119). 1451 1452 Performance and stability improvements on all platforms. 1453 1454 1455 2012-06-25: Version 3.12.3 1456 1457 Reverted r11835 'Unify promotion and allocation limit computation' due 1458 to V8 Splay performance regression on Mac. (Chromium issue 134183) 1459 1460 Fixed sharing of literal boilerplates for optimized code. (issue 2193) 1461 1462 Performance and stability improvements on all platforms. 1463 1464 1465 2012-06-22: Version 3.12.2 1466 1467 Made near-jump check more strict in LoadNamedFieldPolymorphic on 1468 ia32/x64. (Chromium issue 134055) 1469 1470 Fixed lazy sweeping heuristics to prevent old-space expansion. 1471 (issue 2194) 1472 1473 Performance and stability improvements on all platforms. 1474 1475 1476 2012-06-21: Version 3.12.1 1477 1478 Performance and stability improvements on all platforms. 1479 1480 1481 2012-06-20: Version 3.12.0 1482 1483 Fixed Chromium issues: 1484 115100, 129628, 131994, 132727, 132741, 132742, 133211 1485 1486 Fixed V8 issues: 1487 915, 1914, 2034, 2087, 2094, 2134, 2156, 2166, 2172, 2177, 2179, 2185 1488 1489 Added --extra-code flag to mksnapshot to load JS code into the VM 1490 before creating the snapshot. 1491 1492 Support 'restart call frame' command in the debugger. 1493 1494 Performance and stability improvements on all platforms. 1495 1496 1497 2012-06-13: Version 3.11.10 1498 1499 Implemented heap profiler memory usage reporting. 1500 1501 Preserved error message during finally block in try..finally. 1502 (Chromium issue 129171) 1503 1504 Fixed EnsureCanContainElements to properly handle double values. 1505 (issue 2170) 1506 1507 Improved heuristics to keep objects in fast mode with inherited 1508 constructors. 1509 1510 Performance and stability improvements on all platforms. 1511 1512 1513 2012-06-06: Version 3.11.9 1514 1515 Implemented ES5-conformant semantics for inherited setters and read-only 1516 properties. Currently behind --es5_readonly flag, because it breaks 1517 WebKit bindings. 1518 1519 Exposed last seen heap object id via v8 public api. 1520 1521 Performance and stability improvements on all platforms. 1522 1523 1524 2012-05-31: Version 3.11.8 1525 1526 Avoid overdeep recursion in regexp where a guarded expression with a 1527 minimum repetition count is inside another quantifier. 1528 (Chromium issue 129926) 1529 1530 Fixed missing write barrier in store field stub. 1531 (issues 2143, 1465, Chromium issue 129355) 1532 1533 Proxies: Fixed receiver for setters inherited from proxies. 1534 Proxies: Fixed ToStringArray function so that it does not reject some 1535 keys. 1536 (issue 1543) 1537 1538 Performance and stability improvements on all platforms. 1539 1540 1541 2012-05-29: Version 3.11.7 1542 1543 Get better function names in stack traces. 1544 1545 Performance and stability improvements on all platforms. 1546 1547 1548 2012-05-24: Version 3.11.6 1549 1550 Fixed RegExp.prototype.toString for incompatible receivers 1551 (issue 1981). 1552 1553 Performance and stability improvements on all platforms. 1554 1555 1556 2012-05-23: Version 3.11.5 1557 1558 Performance and stability improvements on all platforms. 1559 1560 1561 2012-05-22: Version 3.11.4 1562 1563 Some cleanup to common.gypi. This fixes some host/target combinations 1564 that weren't working in the Make build on Mac. 1565 1566 Handle EINTR in socket functions and continue incomplete sends. 1567 (issue 2098) 1568 1569 Fixed python deprecations. (issue 1391) 1570 1571 Made socket send and receive more robust and return 0 on failure. 1572 (Chromium issue 15719) 1573 1574 Fixed GCC 4.7 (C++11) compilation. (issue 2136) 1575 1576 Set '-m32' option for host and target platforms 1577 1578 Performance and stability improvements on all platforms. 1579 1580 1581 2012-05-18: Version 3.11.3 1582 1583 Disable optimization for functions that have scopes that cannot be 1584 reconstructed from the context chain. (issue 2071) 1585 1586 Define V8_EXPORT to nothing for clients of v8. (Chromium issue 90078) 1587 1588 Correctly check for native error objects. (Chromium issue 2138) 1589 1590 Performance and stability improvements on all platforms. 1591 1592 1593 2012-05-16: Version 3.11.2 1594 1595 Revert r11496. (Chromium issue 128146) 1596 1597 Implement map collection for incremental marking. (issue 1465) 1598 1599 Add toString method to CallSite (which describes a frame of the 1600 stack trace). 1601 1602 1603 2012-05-15: Version 3.11.1 1604 1605 Added a readbuffer function to d8 that reads a file into an ArrayBuffer. 1606 1607 Fix freebsd build. (V8 issue 2126) 1608 1609 Performance and stability improvements on all platforms. 1610 1611 1612 2012-05-11: Version 3.11.0 1613 1614 Fixed compose-discard crasher from r11524 (issue 2123). 1615 1616 Activated new global semantics by default. Global variables can 1617 now shadow properties of the global object (ES5.1 erratum). 1618 1619 Properly set ElementsKind of empty FAST_DOUBLE_ELEMENTS arrays when 1620 transitioning (Chromium issue 117409). 1621 1622 Made Error.prototype.name writable again, as required by the spec and 1623 the web (Chromium issue 69187). 1624 1625 Implemented map collection with incremental marking (issue 1465). 1626 1627 Regexp: Fixed overflow in min-match-length calculation 1628 (Chromium issue 126412). 1629 1630 MIPS: Fixed illegal instruction use on Loongson in code for 1631 Math.random() (issue 2115). 1632 1633 Fixed crash bug in VisitChoice (Chromium issue 126272). 1634 1635 Fixed unsigned-Smi check in MappedArgumentsLookup 1636 (Chromium issue 126414). 1637 1638 Fixed LiveEdit for function with no locals (issue 825). 1639 1640 Fixed register clobbering in LoadIC for interceptors 1641 (Chromium issue 125988). 1642 1643 Implemented clearing of CompareICs (issue 2102). 1644 1645 Performance and stability improvements on all platforms. 1646 1647 1648 2012-05-03: Version 3.10.8 1649 1650 Enabled MIPS cross-compilation. 1651 1652 Ensured reload of elements pointer in StoreFastDoubleElement stub. 1653 (Chromium issue 125515) 1654 1655 Fixed corner cases in truncation behavior when storing to 1656 TypedArrays. (issue 2110) 1657 1658 Fixed failure to properly recognize and report out-of-memory 1659 conditions when allocating code space pages. (Chromium issue 1660 118625) 1661 1662 Fixed idle notifications to perform a round of incremental GCs 1663 after context disposal. (issue 2107) 1664 1665 Fixed preparser for try statement. (issue 2109) 1666 1667 Performance and stability improvements on all platforms. 1668 1669 1670 2012-04-30: Version 3.10.7 1671 1672 Performance and stability improvements on all platforms. 1673 1674 1675 2012-04-26: Version 3.10.6 1676 1677 Fixed some bugs in accessing details of the last regexp match. 1678 1679 Fixed source property of empty RegExp objects. (issue 1982) 1680 1681 Enabled inlining some V8 API functions. 1682 1683 Performance and stability improvements on all platforms. 1684 1685 1686 2012-04-23: Version 3.10.5 1687 1688 Put new global var semantics behind a flag until WebKit tests are 1689 cleaned up. 1690 1691 Enabled stepping into callback passed to builtins. 1692 (Chromium issue 109564) 1693 1694 Performance and stability improvements on all platforms. 1695 1696 1697 2012-04-19: Version 3.10.4 1698 1699 Fixed issues when stressing compaction with WeakMaps. 1700 1701 Fixed missing GVN flag for new-space promotion. (Chromium issue 123919) 1702 1703 Simplify invocation sequence at monomorphic function invocation sites. 1704 (issue 2079) 1705 1706 Performance and stability improvements on all platforms. 1707 1708 1709 2012-04-17: Version 3.10.3 1710 1711 Fixed several bugs in heap profiles (including issue 2078). 1712 1713 Throw syntax errors on illegal escape sequences. 1714 1715 Implemented rudimentary module linking (behind --harmony flag) 1716 1717 Implemented ES5 erratum: Global declarations should shadow 1718 inherited properties. 1719 1720 Made handling of const more consistent when combined with 'eval' 1721 and 'with'. 1722 1723 Fixed V8 on MinGW-x64 (issue 2026). 1724 1725 Performance and stability improvements on all platforms. 1726 1727 1728 2012-04-13: Version 3.10.2 1729 1730 Fixed native ARM build (issues 1744, 539) 1731 1732 Return LOOKUP variable instead of CONTEXT for non-context allocated 1733 outer scope parameters (Chromium issue 119609). 1734 1735 Fixed regular and ElementsKind transitions interfering with each other 1736 (Chromium issue 122271). 1737 1738 Improved performance of keyed loads/stores which have a HeapNumber 1739 index (issues 1388, 1295). 1740 1741 Fixed WeakMap processing for evacuation candidates (issue 2060). 1742 1743 Bailout on possible direct eval calls (Chromium issue 122681). 1744 1745 Do not assume that names of function expressions are context-allocated 1746 (issue 2051). 1747 1748 Performance and stability improvements on all platforms. 1749 1750 1751 2012-04-10: Version 3.10.1 1752 1753 Fixed bug with arguments object in inlined functions (issue 2045). 1754 1755 Fixed performance bug with lazy initialization (Chromium issue 1756 118686). 1757 1758 Added suppport for Mac OS X 64bit builds with GYP. 1759 (Patch contributed by Filipe David Manana <fdmanana (a] gmail.com>) 1760 1761 Fixed bug with hidden properties (issue 2034). 1762 1763 Fixed a performance bug when reloading pages (Chromium issue 117767, 1764 V8 issue 1902). 1765 1766 Fixed bug when optimizing throw in top-level code (issue 2054). 1767 1768 Fixed two bugs with array literals (issue 2055, Chromium issue 121407). 1769 1770 Fixed bug with Math.min/Math.max with NaN inputs (issue 2056). 1771 1772 Fixed a bug with the new runtime profiler (Chromium issue 121147). 1773 1774 Fixed compilation of V8 using uClibc. 1775 1776 Optimized boot-up memory use. 1777 1778 Optimized regular expressions. 1779 1780 1781 2012-03-30: Version 3.10.0 1782 1783 Fixed store IC writability check in strict mode 1784 (Chromium issue 120099). 1785 1786 Resynchronize timers if the Windows system time was changed. 1787 (Chromium issue 119815) 1788 1789 Removed "-mfloat-abi=hard" from host compiler cflags when building for 1790 hardfp ARM 1791 (https://code.google.com/p/chrome-os-partner/issues/detail?id=8539) 1792 1793 Fixed edge case for case independent regexp character classes 1794 (issue 2032). 1795 1796 Reset function info counters after context disposal. 1797 (Chromium issue 117767, V8 issue 1902) 1798 1799 Fixed missing write barrier in CopyObjectToObjectElements. 1800 (Chromium issue 119926) 1801 1802 Fixed missing bounds check in HasElementImpl. 1803 (Chromium issue 119925) 1804 1805 Performance and stability improvements on all platforms. 1806 1807 1808 2012-03-23: Version 3.9.24 1809 1810 Activated count-based profiler for ARM. 1811 1812 Fixed use of proxies as f.prototype properties. (issue 2021) 1813 1814 Enabled snapshots on MIPS. 1815 1816 Performance and stability improvements on all platforms. 1817 1818 1819 2012-03-21: Version 3.9.23 1820 1821 Use correct arguments adaptation environment when inlining function 1822 containing arguments. (Issue 2014) 1823 1824 Performance and stability improvements on all platforms. 1825 1826 1827 2012-03-20: Version 3.9.22 1828 1829 Enabled count-based profiler by default. 1830 1831 Implemented a hash based look-up to speed up address checks 1832 in large object space (issue 853). 1833 1834 Performance and stability improvements on all platforms. 1835 1836 1837 2012-03-19: Version 3.9.21 1838 1839 Fixed push-to-trunk script (and re-push). 1840 1841 Added API call that identifies strings that are guaranteed only to 1842 contain ASCII characters. 1843 1844 1845 2012-03-19: Version 3.9.20 1846 1847 Fixed declarations escaping global strict eval. (Issue 1624) 1848 1849 Fixed wrapping of receiver for non-strict callbacks. (Issue 1973) 1850 1851 Fixed function declarations overwriting read-only global properties. 1852 (Chromium issue 115452) 1853 1854 Fixed --use-strict flag in combination with --harmony[-scoping]. 1855 1856 Debugger: naive implementation of "step into Function.prototype.bind". 1857 1858 Debugger: added ability to set script source from within OnBeforeCompile 1859 1860 Added flag to always call DebugBreak on abort. 1861 1862 Re-enabled constructor inlining and inline === comparison with boolean 1863 constants. (Issue 2009) 1864 1865 Don't use an explicit s0 in ClampDoubleToUint8. (Issue 2004) 1866 1867 Performance and stability improvements on all platforms. 1868 1869 1870 2012-03-14: Version 3.9.19 1871 1872 Ensure there is a smi check of the receiver for global load and call 1873 ICs (Chromium issue 117794). 1874 1875 Performance and stability improvements on all platforms. 1876 1877 1878 2012-03-13: Version 3.9.18 1879 1880 Ensure consistency of Math.sqrt on Intel platforms. 1881 1882 Remove static initializers in v8. (issue 1859) 1883 1884 Add explicit dependency on v8_base in the GYP-based build. 1885 1886 Performance and stability improvements on all platforms. 1887 1888 1889 2012-03-12: Version 3.9.17 1890 1891 Fixed VFP detection through compiler defines. (issue 1996) 1892 1893 Add Code-related fields to postmortem metadata. 1894 1895 Performance and stability improvements on all platforms. 1896 1897 1898 2012-03-09: Version 3.9.16 1899 1900 Added basic interface inference for modules (behind the --harmony flag). 1901 1902 Added Object.is, Number.isFinite, Number.isNaN. 1903 1904 Updated the Unicode tables to Unicode version 6.1.0. 1905 1906 Performance and stability improvements on all platforms. 1907 1908 1909 2012-03-06: Version 3.9.15 1910 1911 Fix the heap profiler crash caused by memory layout changes between 1912 passes. 1913 1914 Fix Error.prototype.toString to throw TypeError. (issue 1980) 1915 1916 Fix double-rounding in strtod for MinGW. (issue 1062) 1917 1918 Fix corrupted snapshot serializaton on ia32. (Chromium issue v8/1985) 1919 1920 Performance and stability improvements on all platforms. 1921 1922 1923 2012-03-01: Version 3.9.14 1924 1925 Performance and stability improvements on all platforms. 1926 1927 1928 2012-02-29: Version 3.9.13 1929 1930 Added code kind check before preparing for OSR. (issue 1900, 115073) 1931 1932 Fixed issue 1802: Pass zone explicitly to zone-allocation on x64 and 1933 ARM. 1934 1935 Ported string construct stub to x64. (issue 849) 1936 1937 Performance and stability improvements on all platforms. 1938 1939 1940 2012-02-28: Version 3.9.12 1941 1942 Fixed the negative lookup stub to handle deleted entries in a 1943 dictionary. (issue 1964) 1944 1945 Added a new API where the host can supply a callback function. The 1946 callback function can resolve the location of a return address on stack 1947 to the location where a return-address rewriting profiler stashed the 1948 original return address. 1949 1950 Fixed Chromium issue http://crbug.com/115646: When compiling for-in 1951 pass correct context value to the increment instruction. 1952 1953 Fixed issue 1853: Update breakpoints set with partial file name after 1954 compile. 1955 1956 1957 2012-02-27: Version 3.9.11 1958 1959 Made 'module' a context-sensitive keyword (V8 issue 1957). 1960 1961 1962 2012-02-24: Version 3.9.10 1963 1964 Fixed V8 issues 1322, 1772 and 1969. 1965 1966 Conformance improvements. 1967 1968 Performance and stability improvements on all platforms. 1969 1970 1971 2012-02-23: Version 3.9.9 1972 1973 Supported fast case for-in in Crankshaft. 1974 1975 Sped up heap snapshot serialization and dominators construction. 1976 1977 Randomized allocation addresses on windows. (Chromium issue 115151) 1978 1979 Fixed compilation with MinGW-w64. (issue 1943) 1980 1981 Fixed incorrect value of assignments to non-extensible properties. 1982 1983 Fixed a crash bug in generated code on ia32. 1984 1985 Performance and stability improvements on all platforms. 1986 1987 1988 2012-02-21: Version 3.9.8 1989 1990 Fixed memory leak and missing #include in StartupDataDecompressor 1991 (issue 1960). 1992 1993 Renamed static methods to avoid shadowing virtual methods and fix Clang 1994 C++11 compile error. 1995 1996 Fixed sequence of element access in array builtins (issue 1790). 1997 1998 Performance and stability improvements on all platforms. 1999 2000 2001 2012-02-16: Version 3.9.7 2002 2003 Fixed V8 issues 1322, 1878, 1942, 1945 and Chromium issue 113924. 2004 2005 Fixed GCC-4.7 warnings. 2006 2007 Added Navier-Stokes benchmark. 2008 2009 Performance and stability improvements on all platforms. 2010 2011 2012 2012-02-14: Version 3.9.6 2013 2014 Fixed template-related linker error. (issue 1936) 2015 2016 Allowed inlining of functions containing object literals. (issue 1322) 2017 2018 Added --call-graph-size option to tickprocessor. (issue 1937) 2019 2020 Heap Snapshot maximum size limit is too low for really big apps. At the 2021 moment the limit is 256MB. (Chromium issue 113015) 2022 2023 Performance and stability improvements on all platforms. 2024 2025 2026 2012-02-09: Version 3.9.5 2027 2028 Removed unused command line flags. 2029 2030 Performance and stability improvements on all platforms. 2031 2032 2033 2012-02-08: Version 3.9.4 2034 2035 Properly initialize element-transitioning array literals on ARM. 2036 (issue 1930) 2037 2038 Bug fixes on all platforms. 2039 2040 2041 2012-02-07: Version 3.9.3 2042 2043 When rethrowing an exception, print the stack trace of its original 2044 site instead of rethrow site (Chromium issue 60240). 2045 2046 Increased size of small stacks from 32k to 64k to avoid hitting limits 2047 in Chromium (Chromium issue 112843). 2048 2049 2050 2012-02-06: Version 3.9.2 2051 2052 Added timestamp to --trace-gc output. (issue 1932) 2053 2054 Heap profiler reports implicit references. 2055 2056 Optionally export metadata with libv8 to enable debuggers to inspect V8 2057 state. 2058 2059 2060 2012-02-02: Version 3.9.1 2061 2062 Fixed memory leak in NativeObjectsExplorer::FindOrAddGroupInfo 2063 (Chromium issue 112315). 2064 2065 Fixed a crash in dev tools (Chromium issue 107996). 2066 2067 Added 'dependencies_traverse': 1 to v8 GYP target. 2068 2069 Performance and stability improvements on all platforms. 2070 2071 2072 2012-02-01: Version 3.9.0 2073 2074 Reduced memory use immediately after starting V8. 2075 2076 Stability fixes and performance improvements on all platforms. 2077 2078 2079 2012-01-26: Version 3.8.9 2080 2081 Flush number string cache on GC (issue 1605). 2082 2083 Provide access to function inferred name with 2084 v8::Function::GetInferredName in V8 public API. 2085 2086 Fix building with Clang (issue 1912). 2087 2088 Reduce the space used by the stack for the profiling thread. 2089 2090 Fix misleading documentation of v8::Locker (issue 542). 2091 2092 Introduce readbinary function in d8 to read binary files. 2093 2094 Performance and stability improvements on all platforms. 2095 2096 2097 2012-01-23: Version 3.8.8 2098 2099 Limited number of loop iterations in Heap::ReserveSpace 2100 (Chromium issue 99027). 2101 2102 Fixed solaris build (VirtualMemory) (issue 1761). 2103 2104 Fixed strict vs. non-strict handling of function proxies in 2105 higher-order array and string methods. 2106 2107 Enabled asynchronous remote debugging with d8 (issue 1691). 2108 2109 Stability and performance improvements on all platforms. 2110 2111 2112 2012-01-19: Version 3.8.7 2113 2114 Ensure that LRandom restores rsi after call to the C function on x64. 2115 (Chromium issue http://crbug.com/110509) 2116 2117 Fixing include issues on *bsd when building with scons. 2118 (issue 1897) 2119 2120 Provide a switch to specify -fno-strict-aliasing 2121 (issue 1887) 2122 2123 Move WIN32 define from standalone.gypi to common.gypi 2124 (issue 1760) 2125 2126 Fix corner-case in heap size estimation. 2127 (issue 1893) 2128 2129 Fix and enable NEW_NON_STRICT_FAST ArgumentsAccess stub on x64. 2130 (issue 1903) 2131 2132 Performance improvements and bug fixes. 2133 2134 2135 2012-01-16: Version 3.8.6 2136 2137 Add primitive WebGL array support to d8. 2138 2139 Improve heap size estimation (issue 1893). 2140 2141 Hash collision DOS workaround extended from string keys 2142 to numeric keys. 2143 2144 Provide an API for iterating through all external strings referenced 2145 from the JS heap. 2146 2147 Adjust position recorded for call expressions. http://crbug.com/109195 2148 2149 Fix GC crash related to instanceof. http://crbug.com/109448 2150 2151 Performance improvements and bug fixes. 2152 2153 2154 2012-01-05: Version 3.8.5 2155 2156 Fix broken test that assumes that no GC can clear the regexp cache (GC 2157 can happen at any time due to Crankshaft). 2158 2159 Fix handling of bogus receivers for Harmony collections. (issue 1884) 2160 2161 Add netbsd support to gyp build. 2162 2163 Determine page size at runtime on posix platforms. 2164 2165 Ensure that store buffer filtering hash sets are cleared after 2166 StoreBuffer::Filter. 2167 2168 Randomize the seed used for string hashing. This helps guard against 2169 CPU-eating DOS attacks against node.js servers. Based on code from 2170 Bert Belder. This version only solves the issue for those that compile 2171 V8 themselves or those that do not use snapshots. A snapshot-based 2172 precompiled V8 will still have predictable string hash codes. 2173 2174 Implement callback when script finishes running in V8 API. 2175 2176 Improve performance of Math.min and Math.max for the case of two 2177 arguments. (issue 1325) 2178 2179 2180 2012-01-02: Version 3.8.4 2181 2182 Performance improvements for large Smi-only arrays. 2183 2184 Fixed InternalArrays construction. (issue 1878) 2185 2186 2187 2011-12-27: Version 3.8.3 2188 2189 Avoid embedding new space objects into code objects in the lithium gap 2190 resolver. (chromium:108296) 2191 2192 Bug fixes and performance optimizations on all platforms. 2193 2194 2195 2011-12-21: Version 3.8.2 2196 2197 Add max optimization flag to v8 gyp build to ensure V8 is always built 2198 fully optimized in Chrome. 2199 2200 MIPS: Bring MIPS to parity with other platforms. 2201 2202 Optimizations and stability improvements on all platforms. 2203 2204 2205 2011-12-19: Version 3.8.1 2206 2207 Fixed GCC 4.7 warnings. Patch from Tobias Burnus. 2208 2209 Stability improvements on all platforms. 2210 2211 2212 2011-12-13: Version 3.8.0 2213 2214 Fixed handling of arrays in DefineOwnProperty. (issue 1756) 2215 2216 Sync parser and preparser on do-while and return statements. 2217 (issue 1856) 2218 2219 Fixed another corner case for DefineOwnProperty on arrays (issue 1756). 2220 2221 Stability and performance improvements on all platforms. 2222 2223 2224 2011-12-01: Version 3.7.12 2225 2226 Increase tick interval for the android platform. 2227 2228 Fix a bug in the register allocator. (chromium:105112) 2229 2230 Fix handling of recompiling code. (chromium:105375, v8:1782) 2231 2232 Start incremental marking on idle notification. (v8:1458) 2233 2234 Build fixes for various platforms. 2235 2236 Various performance improvements. 2237 2238 2239 2011-11-29: Version 3.7.11 2240 2241 Fixed bug when generating padding to ensure space for lazy 2242 deoptimization. 2243 (issue 1846) 2244 2245 Further reduced pause times due to GC. 2246 2247 Stability and performance improvements on all platforms. 2248 2249 2250 2011-11-23: Version 3.7.10 2251 2252 Set maximum length of FixedArray in terms of elements instead an 2253 absolute number of bytes. 2254 (Chromium issue 103103) 2255 2256 Stability and performance improvements on all platforms. 2257 2258 2259 2011-11-21: Version 3.7.9 2260 2261 Removed exit-time destructors. 2262 2263 Stability and performance improvements on all platforms. 2264 2265 2266 2011-11-17: Version 3.7.8 2267 2268 Removed hidden prototype from builtins, i.e., deleting an overridden 2269 function on builtins will not make the original function reappear. 2270 2271 Added NetBSD support for scons build. 2272 2273 Performance improvements on all platforms. 2274 2275 2276 2011-11-14: Version 3.7.7 2277 2278 Fix missing fast property accessors in heap snapshots. 2279 (issue 1818) 2280 2281 2282 2011-11-11: Version 3.7.6 2283 2284 Fixed filtering of store buffer for large object pages. 2285 (issue 1817) 2286 2287 Fixed generated hash function on all platforms. 2288 (issue 1808) 2289 2290 Fixed Heap::Shrink to ensure that it does not free pages that are 2291 still in use. 2292 (Chromium issue 100414) 2293 2294 Stability and performance improvements on all platforms. 2295 2296 2297 2011-11-10: Version 3.7.5 2298 2299 Added initial gyp infrastructure for MIPS. 2300 2301 Implemented performance improvements to the incremental garbage 2302 collector. 2303 2304 Added optimizations and stability improvements on all platforms. 2305 2306 2307 2011-11-07: Version 3.7.4 2308 2309 Proper "libv8.so.3.7.4" SONAME for Linux shared library (issue 1786). 2310 2311 Fix Harmony sets and maps to allow null and undefined as keys 2312 (still hidden behind --harmony flag) (issue 1622). 2313 2314 Implement VirtualMemory on FreeBSD to fix build (issue 1807). 2315 2316 Enable VFP instructions for Android. 2317 2318 Fix error handling in Date.prototype.toISOString (issue 1792). 2319 2320 Bug fixes and performance improvements for all platforms. 2321 2322 Not officially supported but noteworthy: Crankshaft for MIPS :-) 2323 2324 2325 2011-10-28: Version 3.7.3 2326 2327 Slight deoptimization as a workaround for issue with jslint: Issue 2328 1789. 2329 2330 2331 2011-10-27: Version 3.7.2 2332 2333 Fix bug in deoptimization. Known issue with jslint: Issue 1789. 2334 2335 2336 2011-10-26: Version 3.7.1 2337 2338 Achieved 33% speedup in debug-mode tests. 2339 2340 Removed special casing of calls to RegExp test and exec methods with no 2341 argument. Now matches new JSC behaviour. crbug.com/75740. 2342 2343 Return the empty string on cyclic references in toString (ES5 2344 conformance). 2345 2346 Fixed bug triggered by JSBeautifier. crbug.com/100409. 2347 2348 Made Math.random state per-context instead of per-process (issue 864). 2349 2350 Fixed stack traces to skip native functions. 2351 2352 Make snapshots (new contexts) smaller and faster. 2353 2354 Fixed handling of Function.apply for non-array arguments. 2355 2356 Fixed evaluation order in defineProperties to match FireFox. 2357 2358 Fixed handling of non-object receivers for array builtins, 2359 crbug.com/100702. 2360 2361 Multiple fixes to improve compliance with test262. 2362 2363 Fixed compatibility with older Android releases. 2364 2365 Fixed compilation with gcc-4.5.3. 2366 2367 Improved performance of WriteUtf8, issue 1665. 2368 2369 Made native syntax an early error in the preparser. 2370 2371 Fixed issues 793 and 893 relating to Function.prototype.bind. 2372 2373 Improved let, const, Set and Map support and other Harmony features 2374 (behind the --harmony flag). 2375 2376 Changed evaluation order for > and <= to match ES5 instead of ES3. 2377 2378 Bug fixes and performance improvements on all platforms. 2379 2380 2381 2011-10-13: Version 3.7.0 2382 2383 Fixed array handling for Object.defineOwnProperty (ES5 conformance). 2384 2385 Fixed issue 1757 (string slices of external strings). 2386 2387 Fixed issue 1759 (ARM). 2388 2389 Added flag --noclever-optimizations to disable some things that 2390 caused trouble in the past. 2391 2392 Added flag --stress-compaction for testing. 2393 2394 Added flag --harmony to activate all experimental Harmony features. 2395 2396 2397 2011-10-10: Version 3.6.6 2398 2399 Added a GC pause visualization tool. 2400 2401 Added presubmit=no and werror=no flags to Makefile. 2402 2403 ES5/Test262 conformance improvements. 2404 2405 Fixed compilation issues with GCC 4.5.x (issue 1743). 2406 2407 Bug fixes and performance improvements on all platforms. 2408 2409 2410 2011-10-05: Version 3.6.5 2411 2412 New incremental garbage collector. 2413 2414 Removed the hard heap size limit (soft heap size limit is still 2415 700/1400Mbytes by default). 2416 2417 Implemented ES5 generic Array.prototype.toString (Issue 1361). 2418 2419 V8 now allows surrogate pair codes in decodeURIComponent (Issue 1415). 2420 2421 Fixed x64 RegExp start-of-string bug (Issues 1746, 1748). 2422 2423 Fixed propertyIsEnumerable for numeric properties (Issue 1692). 2424 2425 Fixed the MinGW and Windows 2000 builds. 2426 2427 Fixed "Prototype chain is not searched if named property handler does 2428 not set a property" (Issue 1636). 2429 2430 Made the RegExp.prototype object be a RegExp object (Issue 1217). 2431 2432 Disallowed future reserved words as labels in strict mode. 2433 2434 Fixed string split to correctly coerce the separator to a string 2435 (Issue 1711). 2436 2437 API: Added an optional source length field to the Extension 2438 constructor. 2439 2440 API: Added Debug::DisableAgent to match existing Debug::EnableAgent 2441 (Issue 1573). 2442 2443 Added "native" target to Makefile for the benefit of Linux distros. 2444 2445 Fixed: debugger stops stepping outside evaluate (Issue 1639). 2446 2447 More work on ES-Harmony proxies. Still hidden behind a flag. 2448 2449 Bug fixes and performance improvements on all platforms. 2450 2451 2452 2011-09-15: Version 3.6.4 2453 2454 Fixed d8's broken readline history. 2455 2456 Removed the need for code delete events in CPU profiler (Issue 1466). 2457 2458 Fixed debugger stepping next with trycatch recursion (Issue 1639). 2459 2460 Fixing parallel execution in d8 (with -p) and some memory leaks. 2461 2462 Support for precise stepping in functions compiled before debugging was 2463 started (step 1). 2464 2465 2466 2011-09-13: Version 3.6.3 2467 2468 Implemented better support of typed arrays in the d8 shell. 2469 2470 Bug fixes and performance improvements on all platforms. 2471 2472 2473 2011-09-08: Version 3.6.2 2474 2475 Added "dependencies" target to top-level Makefile. 2476 2477 Added ability to turn profiler on/off in d8. 2478 2479 Added "soname_version" parameter to common.gypi, v8.gyp, and Makefile. 2480 2481 Fixed several crash bugs. 2482 2483 2484 2011-09-07: Version 3.6.1 2485 2486 Fixed a bug in abrupt exit from with or catch inside finally. 2487 2488 Fixed possible crash in FixedDoubleArray::Initialize() (Chromium 2489 issue 95113). 2490 2491 Fixed a bug in Page::GetRegionMaskForSpan (Chromium issue 94425). 2492 2493 Fixed a few clang warnings (which -Werror treated as errors). 2494 2495 Performance improvements on all platforms. 2496 2497 2498 2011-09-05: Version 3.6.0 2499 2500 Fixed a bug when optimizing named function expression (issue 1647). 2501 2502 Fixed a bug when optimizing f.call.apply (issue 1650). 2503 2504 Made arguments and caller always be null on native functions 2505 (issues 1548 and 1643). 2506 2507 Fixed issue 1648 (cross-compiling x64 targeting ia32). 2508 2509 Fixed issue 371 (d8 printing of strings containing \0). 2510 2511 Fixed order of evaluation in arguments to parseInt (issue 1649). 2512 2513 Fixed a problem with large heap snapshots in Chrome DevTools 2514 (issue 1658, chromium issue 89268). 2515 2516 Upped default maximum heap size from 512M to 700M. 2517 2518 2519 2011-08-31: Version 3.5.10 2520 2521 Added dependency of v8_base on WinSocket2 Windows library in 2522 the GYP-build. 2523 2524 Various bugfixes. 2525 2526 2527 2011-08-29: Version 3.5.9 2528 2529 Made FromPropertyDescriptor not trigger inherited setters. 2530 2531 Fixed .gyp files to work on the ARM simulator. 2532 2533 Fixed shared library build warnings for MSVS. 2534 2535 2536 2011-08-24: Version 3.5.8 2537 2538 Added V8EXPORT attributes for v8::Array::CheckCast and 2539 v8::Number::CheckCast. 2540 2541 Made a slight API change enabling opting out from null termination 2542 in String::Write*(). 2543 2544 Fixed arm build for gcc-4.6. 2545 2546 2547 2011-08-22: Version 3.5.7 2548 2549 Make scanner handle invalid unicode escapes in identifiers correctly. 2550 2551 Make regexp flag parsing stricter. 2552 2553 Fix several memory leaks. 2554 2555 2556 2011-08-17: Version 3.5.6 2557 2558 Fixed issue that could cause crashes when running with --heap-stats. 2559 2560 Fixed compilation on Linux 2.6.9 and older. 2561 2562 Fixed live-object-list to work with isolates. 2563 2564 Fixed memory leaks in zones and isolates. 2565 2566 Fixed a performance regression for TypedArrays on x64. 2567 2568 Stability improvements on all platforms. 2569 2570 2571 2011-08-15: Version 3.5.5 2572 2573 Fixed bugs involving negative zero and the optimizing compiler. 2574 2575 Fixed optimized version of Function.apply(x, arguments). (issue 1592) 2576 2577 Eliminated uses of deprecated ARM instructions. 2578 2579 Sped up Math.floor by using SSE 4.1 roundsd instruction on ia32. 2580 2581 Removed restriction on the size of disassembled code that is printed. 2582 2583 2584 2011-08-10: Version 3.5.4 2585 2586 Added a preliminary implementation of ES Harmony weak maps. Weak 2587 maps can be enabled by the flag --harmony-weakmaps. 2588 2589 Introduced a toplevel Makefile to support GYP-based building. GYP 2590 can be obtained from http://gyp.googlecode.com. 2591 2592 Fixed a bug in the length property of functions created by 2593 Function.prototype.bind. 2594 2595 Reduced malloc heap allocation on process startup. 2596 2597 Several important code generation bug fixes. 2598 2599 Performance improvements on all platforms. 2600 2601 2602 2011-08-03: Version 3.5.3 2603 2604 MIPS: Port of fix to ClassOf check from ARM. 2605 Patch from Paul Lind <plind44 (a] gmail.com>. 2606 2607 Stopped using mprotect on Cygwin. 2608 Avoided uninitialized member warning on gcc 4.3.4 2609 Both patches by Bert Belder. 2610 2611 Bug fixes and performance improvements on all platforms. 2612 2613 2614 2011-08-01: Version 3.5.2 2615 2616 Performance improvements on all platforms. 2617 2618 2619 2011-07-28: Version 3.5.1 2620 2621 Fixed setting the readonly flag on the prototype property using the 2622 API call FunctionTemplate::SetPrototypeAttributes (issue 1539). 2623 2624 Changed the tools/test.py script to use d8 instead of shell for 2625 testing. 2626 2627 Fixed crash in ToBooleanStub when GC happens during invocation. 2628 2629 Enabled automatic unboxing of double arrays. 2630 2631 Performance improvements on all platforms. 2632 2633 2634 2011-07-25: Version 3.5.0 2635 2636 Implemented Object.prototype.{hasOwnProperty, propertyIsEnumerable} for 2637 proxies. 2638 2639 Removed logging to memory support. 2640 2641 Bugfixes and performance work. 2642 2643 2644 2011-07-20: Version 3.4.14 2645 2646 Fix the debugger for strict-mode functions. (Chromium issue 89236) 2647 2648 Add GetPropertyAttribute method for Object in the API. (Patch by 2649 Peter Varga) 2650 2651 Fix -Wunused-but-set-variable for gcc-4.6 on x64. (Issue 1291) 2652 2653 2654 2011-07-18: Version 3.4.13 2655 2656 Improved debugger support to allow inspection of optimized frames (issue 2657 1140). 2658 2659 Fixed a bug in prototype transitions cache clearing introduced by r8165. 2660 2661 Fixed shortcutting bug in HInferRepresentation. Patch by Andy Wingo. 2662 2663 Fixed a memory leak in sample/shell.cc (dispose semaphores). 2664 2665 Simplified HClampToUint8. Patch by Andy Wingo. 2666 2667 Exposed APIs for detecting boxed primitives, native errors. Patch by 2668 Luke Zarko. 2669 2670 Added map check for COW elements to crankshaft array handling code 2671 (issue 1560). 2672 2673 Sample shell and (a light version of) D8 links against a shared library 2674 now. 2675 2676 Fixed bug in array filter and reduce functions (issue 1559). 2677 2678 Avoid TLS load in AstNode constructor. 2679 2680 Introduced a random entropy source which can optionally be provided at 2681 initialization. (Chromium issue 89462). 2682 2683 2684 2011-07-13: Version 3.4.12 2685 2686 Added --prof profiling option to d8 shell. 2687 2688 Fixed a bug where reading a directory in d8 shell hangs (issue 1533). 2689 2690 Fixed a potential assertion failure in const declarations. 2691 2692 Fixed an assertion failure in descriptor arrays (issue 1526). 2693 2694 Enabled fast thread-local storage by default on supported platforms. 2695 2696 Improved reporting of source position for global variable loads 2697 (issue 1527). 2698 2699 2700 2011-07-11: Version 3.4.11 2701 2702 Fixed MinGW32 build. 2703 2704 Fixed a GC bug with RegExp code flushing. 2705 2706 Implemented Object.defineProperty for proxies. 2707 2708 Fixed a bug in for/in iteration of arguments objects (issue 1531). 2709 2710 Added debugger support for inspecting optimized frames (issue 1140). 2711 2712 Allowed JSObject::PreventExtensions to work for arguments objects. 2713 2714 Bugfixes and performance work. 2715 2716 2717 2011-07-06: Version 3.4.10 2718 2719 Fixed debugger not breaking on certain "if" statements (issue 1523). 2720 2721 Fixed assertion failure in runtime profiler when running on IA32 2722 without snapshot (issue 1522). 2723 2724 Fixed ABI for API calls on IA32 (for clang compatibility). 2725 2726 Introduced code flushing of RegExp code to free memory used by 2727 RegExps sooner. 2728 2729 Fixed linux-tick-processor built wrong version of v8 (issue 1532). 2730 2731 Fixed assertion failure in v8::TryCache::StackTrace (issue 1529). 2732 2733 Performance improvements on all platforms. 2734 2735 2736 2011-07-04: Version 3.4.9 2737 2738 Added support for debugger inspection of locals in optimized frames 2739 (issue 1140). 2740 2741 Fixed SConstruct to pass correct defines to samples/preparser when 2742 building with library=shared. 2743 2744 Made date parser handle ES5 Date Time Strings correctly (issue 1498). 2745 2746 Fixed a bug in Object.defineProperty on the arguments object. 2747 2748 Performance improvements on all platforms. 2749 2750 2751 2011-06-29: Version 3.4.8 2752 2753 Ensure 16-byte stack alignment on Solaris (issue 1505). 2754 2755 Fix "illegal access" when calling parseInt with a radix 2756 that is not a smi. (issue 1246). 2757 2758 2759 2011-06-27: Version 3.4.7 2760 2761 Fixed 64-bit build on FreeBSD. 2762 2763 Added API to set the property attributes for the prototype 2764 property on functions created from FunctionTemplates. 2765 2766 Bugfixes and performance work. 2767 2768 2769 2011-06-22: Version 3.4.6 2770 2771 Lowered limit on code space for systems with low memory supply. 2772 2773 Allowed compiling v8_shell with the 'host' toolset (issue 82437). 2774 2775 Extended setBreakpoint API to accept partial script name (issue 1418). 2776 2777 Made multi-line comments not count when deciding whether the '-->' 2778 comment starter is first on a line. This matches Safari. 2779 2780 Made handling of non-array recievers in Array length setter correct 2781 (issue 1491). 2782 2783 Added ability to heap profiler to iterate over snapshot's node 2784 (issue 1481). 2785 2786 2787 2011-06-20: Version 3.4.5 2788 2789 Fixed issues 794, 1097, 1215(partial), 1417, 1435, 1472, 1473, 2790 1476, and 1477. 2791 2792 Improved code generation for !0 and !1. 2793 2794 Reduced memory usage for regular expressions with nested qualifiers. 2795 (issue 1472) 2796 2797 Fixed V8 to count line terminators in multi-line comments. 2798 (Chromium issue 86431) 2799 2800 Fixed disassembler=on option for release-mode builds. (issue 1473) 2801 2802 Performance improvements on all platforms. 2803 2804 2805 2011-06-15: Version 3.4.4 2806 2807 Added snapshot compression support and --stress-opt flag to d8. 2808 2809 Improved performance of try/catch. 2810 2811 Several GYP-related changes: Added support for building Xcode project 2812 files. Make the ARM simulator build with GYP again. Generate Makefiles 2813 for all architectures on Linux. 2814 2815 Fixed Array.prototype.{reduce,reduceRight} to pass undefined as the 2816 receiver for strict mode callbacks. (issue 1436) 2817 2818 Fixed a bug where an array load was incorrectly hoisted by GVN. 2819 2820 Handle 'undefined' correctly when === has been specialized for doubles. 2821 (issue 1434) 2822 2823 Corrected the limit of local variables in an optimized function from 64 2824 to 63. 2825 2826 Correctly set ReadOnly flag on indexed properties when using the API Set 2827 method. (issue 1470) 2828 2829 Give the correct error message when Object.isExtensible is called on a 2830 non-object. (issue 1452) 2831 2832 Added GetOwnPropertyNames method for Object in the API. Patch by Peter 2833 Varga. 2834 2835 Do not redefine properties unneccesarily in seal and freeze. (issue 2836 1447) 2837 2838 IsExecutionTerminating has an Isolate parameter now. 2839 2840 Distinguish keyed loads with a symbol key from fast elements loads, 2841 avoiding some useless deoptimizations. (issue 1471) 2842 2843 2844 2011-06-08: Version 3.4.3 2845 2846 Clear the global thread table when an isolate is disposed 2847 (issue 1433). 2848 2849 Converted time zone name to UTF8 on Windows (issue 1290). 2850 2851 Limited the number of arguments in a function call to 32766 2852 (issue 1413). 2853 2854 Compress sources of JS libraries in addition to the snapshot. 2855 2856 Fixed a bug in Lithium environment iteration. 2857 2858 Performance improvements on all platforms. 2859 2860 2861 2011-06-06: Version 3.4.2 2862 2863 More work on ES-Harmony proxies. Still hidden behind a flag. 2864 2865 Fixed some crash bugs and improved performance. 2866 2867 Fixed building with gdb debugging support. 2868 2869 Do not install SIGPROF handler until it is needed. 2870 2871 Added DateTimeFormat to i18n API. 2872 2873 Fixed compilation on OpenBSD. 2874 2875 Take the ulimit into account when sizing the heap. OpenBSD users 2876 may still have to increase the default ulimit to run heavy pages in 2877 the browser. 2878 2879 2880 2011-06-01: Version 3.4.1 2881 2882 Fixed JSON stringify issue with arrays. 2883 2884 Changed calls to JS builtins to be passed undefined when called with 2885 implicit receiver. 2886 2887 Implemented the set trap for Harmony proxies. Proxies still need to 2888 be enabled with the --harmony-proxies flag. 2889 2890 2891 2011-05-30: Version 3.4.0 2892 2893 Changed calls to undefined property setters to not throw (issue 1355). 2894 2895 Made RegExp objects not callable. 2896 2897 Fixed issues on special case large JSON strings in new json parser 2898 (issues http://crbug.com/83877 and http://crbug.com/84186). 2899 2900 Performance improvements on all platforms. 2901 2902 2903 2011-05-25: Version 3.3.10 2904 2905 Fixed calls of strict mode function with an implicit receiver. 2906 2907 Fixed fast handling of arrays to properly deal with changes to the 2908 Object prototype (issue 1403). 2909 2910 Changed strict mode poison pill to be the same type error function 2911 (issue 1387). 2912 2913 Fixed a debug crash in arguments object handling (issue 1227). 2914 2915 Fixed a bug in deoptimization on x64 (issue 1404). 2916 2917 Performance improvements and bug fixes on all platforms. 2918 2919 2920 2011-05-23: Version 3.3.9 2921 2922 Added DateTimeFormat class to experimental i18n API. 2923 2924 Extended preparser to give early errors for some strict mode 2925 restrictions. 2926 2927 Removed legacy execScript function from V8. 2928 2929 Extended isolate API with the ability to add embedder-specific 2930 data to an isolate. 2931 2932 Added basic support for polymorphic loads from JS and external 2933 arrays. 2934 2935 Fixed bug in handling of switch statements in the optimizing 2936 compiler. 2937 2938 2939 2011-05-18: Version 3.3.8 2940 2941 Added MarkIndependent to the persistent handle API. Independent 2942 handles are independent of all other persistent handles and can be 2943 garbage collected more frequently. 2944 2945 Implemented the get trap for Harmony proxies. Proxies are enabled 2946 with the --harmony-proxies flag. 2947 2948 Performance improvements and bug fixes on all platforms. 2949 2950 2951 2011-05-16: Version 3.3.7 2952 2953 Updated MIPS infrastructure files. 2954 2955 Performance improvements and bug fixes on all platforms. 2956 2957 2958 2011-05-11: Version 3.3.6 2959 2960 Updated MIPS infrastructure files. 2961 2962 Added method IsCallable for Object to the API. 2963 Patch by Peter Varga. 2964 2965 2966 2011-05-09: Version 3.3.5 2967 2968 Fixed build on FreeBSD. Patch by Akinori MUSHA. 2969 2970 Added check that receiver is JSObject on API calls. 2971 2972 Implemented CallAsConstructor method for Object in the API (Issue 1348). 2973 Patch by Peter Varga. 2974 2975 Added CallAsFunction method to the Object class in the API (Issue 1336). 2976 Patch by Peter Varga. 2977 2978 Added per-isolate locking and unlocking. 2979 2980 Fixed bug in x64 >>> operator (Issue 1359). 2981 2982 2983 2011-05-04: Version 3.3.4 2984 2985 Implemented API to disallow code generation from strings for a context 2986 (issue 1258). 2987 2988 Fixed bug with whitespaces in parseInt (issue 955). 2989 2990 Fixed bug with == comparison of Date objects (issue 1356). 2991 2992 Added GYP variables for ARM code generation: 2993 v8_can_use_vfp_instructions, v8_can_use_unaligned_accesses 2994 and v8_use_arm_eabi_hardfloat. 2995 2996 2997 2011-05-02: Version 3.3.3 2998 2999 Added support for generating Visual Studio solution and project files 3000 using GYP. 3001 3002 Implemented support for ARM EABI calling convention variation where 3003 floating-point arguments are passed in registers (hardfloat). 3004 3005 Added Object::HasOwnProperty() to the API. 3006 3007 Added support for compressing startup data to reduce binary size. This 3008 includes build time support and an API for the embedder to decompress 3009 the startup data before initializing V8. 3010 3011 Reduced the profiling hooks overhead from >400% to 25% when using 3012 ll_prof. 3013 3014 Performance improvements and bug fixes on all platforms. 3015 3016 3017 2011-04-27: Version 3.3.2 3018 3019 Fixed crash bug on ARM with no VFP3 hardware. 3020 3021 Fixed compilation of V8 without debugger support. 3022 3023 Improved performance on JSLint. 3024 3025 Added support Float64 WebGL arrays. 3026 3027 Fixed crash bug in regexp replace. 3028 3029 3030 2011-04-20: Version 3.3.1 3031 3032 Reduced V8 binary size by removing virtual functions from hydrogen. 3033 3034 Fixed crash bug on x64. 3035 3036 Performance improvements on ARM and IA32. 3037 3038 3039 2011-04-18: Version 3.3.0 3040 3041 Fixed bug in floating point rounding in Crankshaft on ARM 3042 (issue 958) 3043 3044 Fixed a number of issues with running without VFPv3 support on ARM 3045 (issue 1315) 3046 3047 Introduced v8Locale.Collator, a partial implementation of Collator 3048 per last ECMAScript meeting + mailing list. 3049 3050 Minor performance improvements and bug fixes. 3051 3052 3053 2011-04-13: Version 3.2.10 3054 3055 Fixed bug in external float arrays on ARM (issue 1323). 3056 3057 Minor performance improvements and bug fixes. 3058 3059 3060 2011-04-11: Version 3.2.9 3061 3062 Removed support for ABI prior to EABI on ARM. 3063 3064 Fixed multiple crash bugs. 3065 3066 Added GCMole to the repository, a simple static analysis tool that 3067 searches for GC-unsafe evaluation order dependent callsites. 3068 3069 Made preparser API be exported in shared libraries. 3070 3071 Fixed multiple issues in EcmaScript 5 strict mode implementation. 3072 3073 Fixed mutable __proto__ property if object is not extensible 3074 (Issue 1309). 3075 3076 Fixed auto suspension of the sampler thread. 3077 3078 3079 2011-04-06: Version 3.2.8 3080 3081 Exposed WebGL typed array constructors in the shell sample. 3082 3083 Performance improvements on all platforms. 3084 3085 3086 2011-04-04: Version 3.2.7 3087 3088 Disabled the original 'classic' V8 code generator. Crankshaft is 3089 now the default on all platforms. 3090 3091 Changed the heap profiler to use more descriptive names. 3092 3093 Performance and stability improvements to isolates on all platforms. 3094 3095 3096 2011-03-30: Version 3.2.6 3097 3098 Fixed xcode build warning in shell.cc (out of order initialization). 3099 3100 Fixed null-pointer dereference in the compiler when running without 3101 SSE3 support (Chromium issue 77654). 3102 3103 Fixed x64 compilation error due to some dead code. (Issue 1286) 3104 3105 Introduced scons target to build the preparser stand-alone example. 3106 3107 Made FreeBSD build and pass all tests. 3108 3109 3110 2011-03-28: Version 3.2.5 3111 3112 Fixed build with Irregexp interpreter (issue 1266). 3113 3114 Added Crankshaft support for external arrays. 3115 3116 Fixed two potential crash bugs. 3117 3118 3119 2011-03-23: Version 3.2.4 3120 3121 Added isolates which allows several V8 instances in the same process. 3122 This is controlled through the new Isolate class in the API. 3123 3124 Implemented more of EcmaScript 5 strict mode. 3125 3126 Reduced the time it takes to make detailed heap snapshot. 3127 3128 Added a number of commands to the ARM simulator and enhanced the ARM 3129 disassembler. 3130 3131 3132 2011-03-17: Version 3.2.3 3133 3134 Fixed a number of crash bugs. 3135 3136 Fixed Array::New(length) to return an array with a length (issue 1256). 3137 3138 Fixed FreeBSD build. 3139 3140 Changed __defineGetter__ to not throw (matching the behavior of Safari). 3141 3142 Implemented more of EcmaScript 5 strict mode. 3143 3144 Improved Crankshaft performance on all platforms. 3145 3146 3147 2011-03-14: Version 3.2.2 3148 3149 Fixed a number of crash and correctness bugs. 3150 3151 Improved Crankshaft performance on all platforms. 3152 3153 Fixed Crankshaft on Solaris/Illumos. 3154 3155 3156 2011-03-10: Version 3.2.1 3157 3158 Fixed a number of crash bugs. 3159 3160 Improved Crankshaft for x64 and ARM. 3161 3162 Implemented more of EcmaScript 5 strict mode. 3163 3164 3165 2011-03-07: Version 3.2.0 3166 3167 Fixed a number of crash bugs. 3168 3169 Turned on Crankshaft by default on x64 and ARM. 3170 3171 Improved Crankshaft for x64 and ARM. 3172 3173 Implemented more of EcmaScript 5 strict mode. 3174 3175 3176 2011-03-02: Version 3.1.8 3177 3178 Fixed a number of crash bugs. 3179 3180 Improved Crankshaft for x64 and ARM. 3181 3182 Implemented more of EcmaScript 5 strict mode. 3183 3184 Fixed issue with unaligned reads and writes on ARM. 3185 3186 Improved heap profiler support. 3187 3188 3189 2011-02-28: Version 3.1.7 3190 3191 Fixed a number of crash bugs. 3192 3193 Improved Crankshaft for x64 and ARM. 3194 3195 Fixed implementation of indexOf/lastIndexOf for sparse 3196 arrays (http://crbug.com/73940). 3197 3198 Fixed bug in map space compaction (http://crbug.com/59688). 3199 3200 Added support for direct getter accessors calls on ARM. 3201 3202 3203 2011-02-24: Version 3.1.6 3204 3205 Fixed a number of crash bugs. 3206 3207 Added support for Cygwin (issue 64). 3208 3209 Improved Crankshaft for x64 and ARM. 3210 3211 Added Crankshaft support for stores to pixel arrays. 3212 3213 Fixed issue in CPU profiler with Crankshaft. 3214 3215 3216 2011-02-16: Version 3.1.5 3217 3218 Change RegExp parsing to disallow /(*)/. 3219 3220 Added GDB JIT support for ARM. 3221 3222 Fixed several crash bugs. 3223 3224 Performance improvements on the IA32 platform. 3225 3226 3227 2011-02-14: Version 3.1.4 3228 3229 Fixed incorrect compare of prototypes of the global object (issue 3230 1082). 3231 3232 Fixed a bug in optimizing calls to global functions (issue 1106). 3233 3234 Made optimized Function.prototype.apply safe for non-JSObject first 3235 arguments (issue 1128). 3236 3237 Fixed an error related to element accessors on Object.prototype and 3238 parser errors (issue 1130). 3239 3240 Fixed a bug in sorting an array with large array indices (issue 1131). 3241 3242 Properly treat exceptions thrown while compiling (issue 1132). 3243 3244 Fixed bug in register requirements for function.apply (issue 1133). 3245 3246 Fixed a representation change bug in the Hydrogen graph construction 3247 (issue 1134). 3248 3249 Fixed the semantics of delete on parameters (issue 1136). 3250 3251 Fixed a optimizer bug related to moving instructions with side effects 3252 (issue 1138). 3253 3254 Added support for the global object in Object.keys (issue 1150). 3255 3256 Fixed incorrect value for Math.LOG10E 3257 (issue http://code.google.com/p/chromium/issues/detail?id=72555) 3258 3259 Performance improvements on the IA32 platform. 3260 3261 Implement assignment to undefined reference in ES5 Strict Mode. 3262 3263 3264 2011-02-09: Version 3.1.3 3265 3266 Fixed a bug triggered by functions with huge numbers of declared 3267 arguments. 3268 3269 Fixed zap value aliasing a real object - debug mode only (issue 866). 3270 3271 Fixed issue where Array.prototype.__proto__ had been set to null 3272 (issue 1121). 3273 3274 Fixed stability bugs in Crankshaft for x86. 3275 3276 3277 2011-02-07: Version 3.1.2 3278 3279 Added better security checks when accessing properties via 3280 Object.getOwnPropertyDescriptor. 3281 3282 Fixed bug in Object.defineProperty and related access bugs (issues 3283 992, 1083 and 1092). 3284 3285 Added LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to ease 3286 copyright notice generation for embedders. 3287 3288 3289 2011-02-02: Version 3.1.1 3290 3291 Perform security checks before fetching the value in 3292 Object.getOwnPropertyDescriptor. 3293 3294 Fixed a bug in Array.prototype.splice triggered by passing no 3295 arguments. 3296 3297 Fixed bugs in -0 in arithmetic and in Math.pow. 3298 3299 Fixed bugs in the register allocator and in switching from optimized 3300 to unoptimized code. 3301 3302 3303 2011-01-31: Version 3.1.0 3304 3305 Performance improvements on all platforms. 3306 3307 3308 2011-01-28: Version 3.0.12 3309 3310 Added support for strict mode parameter and object property 3311 validation. 3312 3313 Fixed a couple of crash bugs. 3314 3315 3316 2011-01-25: Version 3.0.11 3317 3318 Fixed a bug in deletion of lookup slots that could cause global 3319 variables to be accidentally deleted (http://crbug.com/70066). 3320 3321 Added support for strict mode octal literal verification. 3322 3323 Fixed a couple of crash bugs (issues 1070 and 1071). 3324 3325 3326 2011-01-24: Version 3.0.10 3327 3328 Fixed External::Wrap for 64-bit addresses (issue 1037). 3329 3330 Fixed incorrect .arguments variable proxy handling in the full 3331 code generator (issue 1060). 3332 3333 Introduced partial strict mode support. 3334 3335 Changed formatting of recursive error messages to match Firefox and 3336 Safari (issue http://crbug.com/70334). 3337 3338 Fixed incorrect rounding for float-to-integer conversions for external 3339 array types, which implement the Typed Array spec 3340 (issue http://crbug.com/50972). 3341 3342 Performance improvements on the IA32 platform. 3343 3344 3345 2011-01-19: Version 3.0.9 3346 3347 Added basic GDB JIT Interface integration. 3348 3349 Make invalid break/continue statements a syntax error instead of a 3350 runtime error. 3351 3352 3353 2011-01-17: Version 3.0.8 3354 3355 Exposed heap size limit to the heap statistics gathered by 3356 the GetHeapStatistics API. 3357 3358 Wrapped external pointers more carefully (issue 1037). 3359 3360 Hardened the implementation of error objects to avoid setters 3361 intercepting the properties set then throwing an error. 3362 3363 Avoided trashing the FPSCR when calculating Math.floor on ARM. 3364 3365 Performance improvements on the IA32 platform. 3366 3367 3368 2011-01-10: Version 3.0.7 3369 3370 Stopped calling inherited setters when creating object literals 3371 (issue 1015). 3372 3373 Changed interpretation of malformed \c? escapes in RegExp to match 3374 JSC. 3375 3376 Enhanced the command-line debugger interface and fixed some minor 3377 bugs in the debugger. 3378 3379 Performance improvements on the IA32 platform. 3380 3381 3382 2011-01-05: Version 3.0.6 3383 3384 Allowed getters and setters on JSArray elements (issue 900). 3385 3386 Stopped JSON objects from hitting inherited setters (part of 3387 issue 1015). 3388 3389 Allowed numbers and strings as names of getters/setters in object 3390 initializer (issue 820). 3391 3392 Added use_system_v8 option to gyp (off by default), to make it easier 3393 for Linux distributions to ship with system-provided V8 library. 3394 3395 Exported external array data accessors (issue 1016). 3396 3397 Added labelled thread names to help with debugging (on Linux). 3398 3399 3400 2011-01-03: Version 3.0.5 3401 3402 Fixed a couple of cast errors for gcc-3.4.3. 3403 3404 Performance improvements in GC and IA32 code generator. 3405 3406 3407 2010-12-21: Version 3.0.4 3408 3409 Added Date::ResetCache() to the API so that the cached values in the 3410 Date object can be reset to allow live DST / timezone changes. 3411 3412 Extended existing support for printing (while debugging) the contents 3413 of objects. Added support for printing objects from release builds. 3414 3415 Fixed V8 issues 989, 1006, and 1007. 3416 3417 3418 2010-12-17: Version 3.0.3 3419 3420 Reapplied all changes for version 3.0.1. 3421 3422 Improved debugger protocol for remote debugging. 3423 3424 Added experimental support for using gyp to generate build files 3425 for V8. 3426 3427 Fixed implementation of String::Write in the API (issue 975). 3428 3429 3430 2010-12-15: Version 3.0.2 3431 3432 Revert version 3.0.1 and patch 3.0.1.1. 3433 3434 3435 2010-12-13: Version 3.0.1 3436 3437 Added support for an experimental internationalization API as an 3438 extension. This extension is disabled by default but can be enabled 3439 when building V8. The ECMAScript internationalization strawman is 3440 at http://wiki.ecmascript.org/doku.php?id=strawman:i18n_api. 3441 3442 Made RegExp character class parsing stricter. This mirrors a change 3443 to RegExp parsing in WebKit. 3444 3445 Fixed a bug in Object.defineProperty when used to change attributes 3446 of an existing property. It incorrectly set the property value to 3447 undefined (issue 965). 3448 3449 Fixed several different compilation failures on various platforms 3450 caused by the 3.0.0 release. 3451 3452 Optimized Math.pow so it can work on unboxed doubles. 3453 3454 Sped up quoting of JSON strings by removing one traversal of the 3455 string. 3456 3457 3458 2010-12-07: Version 3.0.0 3459 3460 Improved performance by (partially) addressing issue 957 on 3461 IA-32. Still needs more work for the other architectures. 3462 3463 3464 2010-11-29: Version 2.5.9 3465 3466 Fixed crashes during GC caused by partially initialize heap 3467 objects. 3468 3469 Fixed bug in process sample that caused memory leaks. 3470 3471 Improved performance on ARM by implementing missing stubs and 3472 inlining. 3473 3474 Improved heap profiler support. 3475 3476 Added separate seeding on Windows of the random number generator 3477 used internally by the compiler (issue 936). 3478 3479 Exposed API for getting the name of the function used to construct 3480 an object. 3481 3482 Fixed date parser to handle one and two digit millisecond 3483 values (issue 944). 3484 3485 Fixed number parsing to disallow space between sign and 3486 digits (issue 946). 3487 3488 3489 2010-11-23: Version 2.5.8 3490 3491 Removed dependency on Gay's dtoa. 3492 3493 Improved heap profiler precision and speed. 3494 3495 Reduced overhead of callback invocations on ARM. 3496 3497 3498 2010-11-18: Version 2.5.7 3499 3500 Fixed obscure evaluation order bug (issue 931). 3501 3502 Split the random number state between JavaScript and the private API. 3503 3504 Fixed performance bug causing GCs when generating stack traces on 3505 code from very large scripts. 3506 3507 Fixed bug in parser that allowed (foo):42 as a labelled statement 3508 (issue 918). 3509 3510 Provide more accurate results about used heap size via 3511 GetHeapStatistics. 3512 3513 Allow build-time customization of the max semispace size. 3514 3515 Made String.prototype.split honor limit when separator is empty 3516 (issue 929). 3517 3518 Added missing failure check after expecting an identifier in 3519 preparser (Chromium issue 62639). 3520 3521 3522 2010-11-10: Version 2.5.6 3523 3524 Added support for VFP rounding modes to the ARM simulator. 3525 3526 Fixed multiplication overflow bug (issue 927). 3527 3528 Added a limit for the amount of executable memory (issue 925). 3529 3530 3531 2010-11-08: Version 2.5.5 3532 3533 Added more aggressive GC of external objects in near out-of-memory 3534 situations. 3535 3536 Fixed a bug that gave the incorrect result for String.split called 3537 on the empty string (issue 924). 3538 3539 3540 2010-11-03: Version 2.5.4 3541 3542 Improved V8 VFPv3 runtime detection to address issue 914. 3543 3544 3545 2010-11-01: Version 2.5.3 3546 3547 Fixed a bug that prevents constants from overwriting function values 3548 in object literals (issue 907). 3549 3550 Fixed a bug with reporting of impossible nested calls of DOM functions 3551 (issue http://crbug.com/60753). 3552 3553 3554 2010-10-27: Version 2.5.2 3555 3556 Improved sampler resolution on Linux. 3557 3558 Allowed forcing the use of a simulator from the build script 3559 independently of the host architecture. 3560 3561 Fixed FreeBSD port (issue 912). 3562 3563 Made windows-tick-processor respect D8_PATH. 3564 3565 Implemented --noinline-new flag fully on IA32, X64 and ARM platforms. 3566 3567 3568 2010-10-20: Version 2.5.1 3569 3570 Fixed bug causing spurious out of memory exceptions 3571 (issue http://crbug.com/54580). 3572 3573 Fixed compilation error on Solaris platform (issue 901). 3574 3575 Fixed error in strtod (string to floating point number conversion) 3576 due to glibc's use of 80-bit floats in the FPU on 32-bit linux. 3577 3578 Adjusted randomized allocations of executable memory to have 64k 3579 granularity (issue http://crbug.com/56036). 3580 3581 Supported profiling using kernel perf_events on linux. Added ll_prof 3582 script to tools and --ll-prof flag to V8. 3583 3584 3585 2010-10-18: Version 2.5.0 3586 3587 Fixed bug in cache handling of lastIndex on global regexps 3588 (issue http://crbug.com/58740). 3589 3590 Added USE_SIMULATOR macro that explicitly indicates that we wish to use 3591 the simulator as the execution engine (by Mark Lam <mark.lam (a] palm.com> 3592 from Hewlett-Packard Development Company, LP). 3593 3594 Fixed compilation error on ARM with gcc 4.4 (issue 894). 3595 3596 3597 2010-10-13: Version 2.4.9 3598 3599 Fixed a bug in the handling of conditional expressions in test 3600 contexts in compiler for top-level code. 3601 3602 Added "//@ sourceURL" information to the StackTrace API. 3603 3604 Exposed RegExp construction through the API. 3605 3606 3607 2010-10-04: Version 2.4.8 3608 3609 Fixed a bug in ResumeProfilerEx causing it to not always write out the 3610 whole snapshot (issue 868). 3611 3612 Performance improvements on all platforms. 3613 3614 3615 2010-09-30: Version 2.4.7 3616 3617 Changed the command-line flag --max-new-space-size to be in kB and the 3618 flag --max-old-space-size to be in MB (previously they were in bytes). 3619 3620 Added Debug::CancelDebugBreak to the debugger API. 3621 3622 Fixed a bug in getters for negative numeric property names 3623 (https://bugs.webkit.org/show_bug.cgi?id=46689). 3624 3625 Performance improvements on all platforms. 3626 3627 3628 2010-09-27: Version 2.4.6 3629 3630 Fixed assertion failure related to copy-on-write arrays (issue 876). 3631 3632 Fixed build failure of 64-bit V8 on Windows. 3633 3634 Fixed a bug in RegExp (issue http://crbug.com/52801). 3635 3636 Improved the profiler's coverage to cover more functions (issue 858). 3637 3638 Fixed error in shift operators on 64-bit V8 3639 (issue http://crbug.com/54521). 3640 3641 3642 2010-09-22: Version 2.4.5 3643 3644 Changed the RegExp benchmark to exercise the regexp engine on different 3645 inputs by scrambling the input strings. 3646 3647 Fixed a bug in keyed loads on strings. 3648 3649 Fixed a bug with loading global function prototypes. 3650 3651 Fixed a bug with profiling RegExp calls (issue http://crbug.com/55999). 3652 3653 Performance improvements on all platforms. 3654 3655 3656 2010-09-15: Version 2.4.4 3657 3658 Fixed bug with hangs on very large sparse arrays. 3659 3660 Now tries harder to free up memory when running out of space. 3661 3662 Added heap snapshots to JSON format to API. 3663 3664 Recalibrated benchmarks. 3665 3666 3667 2010-09-13: Version 2.4.3 3668 3669 Made Date.parse properly handle TZ offsets (issue 857). 3670 3671 Performance improvements on all platforms. 3672 3673 3674 2010-09-08: Version 2.4.2 3675 3676 Fixed GC crash bug. 3677 3678 Fixed stack corruption bug. 3679 3680 Fixed compilation for newer C++ compilers that found Operand(0) 3681 ambiguous. 3682 3683 3684 2010-09-06: Version 2.4.1 3685 3686 Added the ability for an embedding application to receive a callback 3687 when V8 allocates (V8::AddMemoryAllocationCallback) or deallocates 3688 (V8::RemoveMemoryAllocationCallback) from the OS. 3689 3690 Fixed several JSON bugs (including issue 855). 3691 3692 Fixed memory overrun crash bug triggered during V8's tick-based 3693 profiling. 3694 3695 Performance improvements on all platforms. 3696 3697 3698 2010-09-01: Version 2.4.0 3699 3700 Fixed bug in Object.freeze and Object.seal when Array.prototype or 3701 Object.prototype are changed (issue 842). 3702 3703 Updated Array.splice to follow Safari and Firefox when called 3704 with zero arguments. 3705 3706 Fixed a missing live register when breaking at keyed loads on ARM. 3707 3708 Performance improvements on all platforms. 3709 3710 3711 2010-08-25: Version 2.3.11 3712 3713 Fixed bug in RegExp related to copy-on-write arrays. 3714 3715 Refactored tools/test.py script, including the introduction of 3716 VARIANT_FLAGS that allows specification of sets of flags with which 3717 all tests should be run. 3718 3719 Fixed a bug in the handling of debug breaks in CallIC. 3720 3721 Performance improvements on all platforms. 3722 3723 3724 2010-08-23: Version 2.3.10 3725 3726 Fixed bug in bitops on ARM. 3727 3728 Build fixes for unusual compilers. 3729 3730 Track high water mark for RWX memory. 3731 3732 Performance improvements on all platforms. 3733 3734 3735 2010-08-18: Version 2.3.9 3736 3737 Fixed compilation for ARMv4 on OpenBSD/FreeBSD. 3738 3739 Removed specialized handling of GCC 4.4 (issue 830). 3740 3741 Fixed DST cache to take into account the suspension of DST in 3742 Egypt during the 2010 Ramadan (issue http://crbug.com/51855). 3743 3744 Performance improvements on all platforms. 3745 3746 3747 2010-08-16: Version 2.3.8 3748 3749 Fixed build with strict aliasing on GCC 4.4 (issue 463). 3750 3751 Fixed issue with incorrect handling of custom valueOf methods on 3752 string wrappers (issue 760). 3753 3754 Fixed compilation for ARMv4 (issue 590). 3755 3756 Improved performance. 3757 3758 3759 2010-08-11: Version 2.3.7 3760 3761 Reduced size of heap snapshots produced by heap profiler (issue 783). 3762 3763 Introduced v8::Value::IsRegExp method. 3764 3765 Fixed CPU profiler crash in start / stop sequence when non-existent 3766 name is passed (issue http://crbug.com/51594). 3767 3768 Introduced new indexed property query callbacks API (issue 816). This 3769 API is guarded by USE_NEW_QUERY_CALLBACK define and is disabled 3770 by default. 3771 3772 Removed support for object literal get/set with number/string 3773 property name. 3774 3775 Fixed handling of JSObject::elements in CalculateNetworkSize 3776 (issue 822). 3777 3778 Allowed compiling with strict aliasing enabled on GCC 4.4 (issue 463). 3779 3780 3781 2010-08-09: Version 2.3.6 3782 3783 RegExp literals create a new object every time they are evaluated 3784 (issue 704). 3785 3786 Object.seal and Object.freeze return the modified object (issue 809). 3787 3788 Fixed building using GCC 4.4.4. 3789 3790 3791 2010-08-04: Version 2.3.5 3792 3793 Added support for ES5 property names. Object initialisers and 3794 dot-notation property access now allows keywords. Also allowed 3795 non-identifiers after "get" or "set" in an object initialiser. 3796 3797 Randomized the addresses of allocated executable memory on Windows. 3798 3799 3800 2010-08-02: Version 2.3.4 3801 3802 Fixed problems in implementation of ES5 function.prototype.bind. 3803 3804 Fixed error when using apply with arguments object on ARM (issue 784). 3805 3806 Added setting of global flags to debugger protocol. 3807 3808 Fixed an error affecting cached results of sin and cos (issue 792). 3809 3810 Removed memory leak from a boundary case where V8 is not initialized. 3811 3812 Fixed issue where debugger could set breakpoints outside the body 3813 of a function. 3814 3815 Fixed issue in debugger when using both live edit and step in features. 3816 3817 Added Number-letter (Nl) category to Unicode tables. These characters 3818 can now be used in identifiers. 3819 3820 Fixed an assert failure on X64 (issue 806). 3821 3822 Performance improvements on all platforms. 3823 3824 3825 2010-07-26: Version 2.3.3 3826 3827 Fixed error when building the d8 shell in a fresh checkout. 3828 3829 Implemented Function.prototype.bind (ES5 15.3.4.5). 3830 3831 Fixed an error in inlined stores on ia32. 3832 3833 Fixed an error when setting a breakpoint at the end of a function 3834 that does not end with a newline character. 3835 3836 Performance improvements on all platforms. 3837 3838 3839 2010-07-21: Version 2.3.2 3840 3841 Fixed compiler warnings when building with LLVM. 3842 3843 Fixed a bug with for-in applied to strings (issue 785). 3844 3845 Performance improvements on all platforms. 3846 3847 3848 2010-07-19: Version 2.3.1 3849 3850 Fixed compilation and linking with V8_INTERPRETED_REGEXP flag. 3851 3852 Fixed bug related to code flushing while compiling a lazy 3853 compilable function (issue http://crbug.com/49099). 3854 3855 Performance improvements on all platforms. 3856 3857 3858 2010-07-15: Version 2.3.0 3859 3860 Added ES5 Object.seal and Object.isSealed. 3861 3862 Added debugger API for scheduling debugger commands from a 3863 separate thread. 3864 3865 3866 2010-07-14: Version 2.2.24 3867 3868 Added API for capturing stack traces for uncaught exceptions. 3869 3870 Fixed crash bug when preparsing from a non-external V8 string 3871 (issue 775). 3872 3873 Fixed JSON.parse bug causing input not to be converted to string 3874 (issue 764). 3875 3876 Added ES5 Object.freeze and Object.isFrozen. 3877 3878 Performance improvements on all platforms. 3879 3880 3881 2010-07-07: Version 2.2.23 3882 3883 API change: Convert Unicode code points outside the basic multilingual 3884 plane to the replacement character. Previous behavior was to silently 3885 truncate the value to 16 bits. 3886 3887 Fixed crash: handle all flat string types in regexp replace. 3888 3889 Prevent invalid pre-parsing data passed in through the API from 3890 crashing V8. 3891 3892 Performance improvements on all platforms. 3893 3894 3895 2010-07-05: Version 2.2.22 3896 3897 Added ES5 Object.isExtensible and Object.preventExtensions. 3898 3899 Enabled building V8 as a DLL. 3900 3901 Fixed a bug in date code where -0 was not interpreted as 0 3902 (issue 736). 3903 3904 Performance improvements on all platforms. 3905 3906 3907 2010-06-30: Version 2.2.21 3908 3909 Fixed bug in externalizing some ASCII strings (Chromium issue 47824). 3910 3911 Updated JSON.stringify to floor the space parameter (issue 753). 3912 3913 Updated the Mozilla test expectations to the newest version. 3914 3915 Updated the ES5 Conformance Test expectations to the latest version. 3916 3917 Updated the V8 benchmark suite. 3918 3919 Provide actual breakpoints locations in response to setBreakpoint 3920 and listBreakpoints requests. 3921 3922 3923 2010-06-28: Version 2.2.20 3924 3925 Fixed bug with for-in on x64 platform (issue 748). 3926 3927 Fixed crash bug on x64 platform (issue 756). 3928 3929 Fixed bug in Object.getOwnPropertyNames. (chromium issue 41243). 3930 3931 Fixed a bug on ARM that caused the result of 1 << x to be 3932 miscalculated for some inputs. 3933 3934 Performance improvements on all platforms. 3935 3936 3937 2010-06-23: Version 2.2.19 3938 3939 Fixed bug that causes the build to break when profillingsupport=off 3940 (issue 738). 3941 3942 Added expose-externalize-string flag for testing extensions. 3943 3944 Resolve linker issues with using V8 as a DLL causing a number of 3945 problems with unresolved symbols. 3946 3947 Fixed build failure for cctests when ENABLE_DEBUGGER_SUPPORT is not 3948 defined. 3949 3950 Performance improvements on all platforms. 3951 3952 3953 2010-06-16: Version 2.2.18 3954 3955 Added API functions to retrieve information on indexed properties 3956 managed by the embedding layer. Fixes bug 737. 3957 3958 Made ES5 Object.defineProperty support array elements. Fixes bug 619. 3959 3960 Added heap profiling to the API. 3961 3962 Removed old named property query from the API. 3963 3964 Incremental performance improvements. 3965 3966 3967 2010-06-14: Version 2.2.17 3968 3969 Improved debugger support for stepping out of functions. 3970 3971 Incremental performance improvements. 3972 3973 3974 2010-06-09: Version 2.2.16 3975 3976 Removed the SetExternalStringDiposeCallback API. Changed the 3977 disposal of external string resources to call a virtual Dispose 3978 method on the resource. 3979 3980 Added support for more precise break points when debugging and 3981 stepping. 3982 3983 Memory usage improvements on all platforms. 3984 3985 3986 2010-06-07: Version 2.2.15 3987 3988 Added an API to control the disposal of external string resources. 3989 3990 Added missing initialization of a couple of variables which makes 3991 some compilers complaint when compiling with -Werror. 3992 3993 Improved performance on all platforms. 3994 3995 3996 2010-06-02: Version 2.2.14 3997 3998 Fixed a crash in code generated for String.charCodeAt. 3999 4000 Fixed a compilation issue with some GCC versions (issue 727). 4001 4002 Performance optimizations on x64 and ARM platforms. 4003 4004 4005 2010-05-31: Version 2.2.13 4006 4007 Implemented Object.getOwnPropertyDescriptor for element indices and 4008 strings (issue 599). 4009 4010 Fixed bug for windows 64 bit C calls from generated code. 4011 4012 Added new scons flag unalignedaccesses for arm builds. 4013 4014 Performance improvements on all platforms. 4015 4016 4017 2010-05-26: Version 2.2.12 4018 4019 Allowed accessors to be defined on objects rather than just object 4020 templates. 4021 4022 Changed the ScriptData API. 4023 4024 4025 2010-05-21: Version 2.2.11 4026 4027 Fixed crash bug in liveedit on 64 bit. 4028 4029 Use 'full compiler' when debugging is active. This should increase 4030 the density of possible break points, making single step more fine 4031 grained. This will only take effect for functions compiled after 4032 debugging has been started, so recompilation of all functions is 4033 required to get the full effect. IA32 and x64 only for now. 4034 4035 Misc. fixes to the Solaris build. 4036 4037 Added new flags --print-cumulative-gc-stat and --trace-gc-nvp. 4038 4039 Added filtering of CPU profiles by security context. 4040 4041 Fixed crash bug on ARM when running without VFP2 or VFP3. 4042 4043 Incremental performance improvements in all backends. 4044 4045 4046 2010-05-17: Version 2.2.10 4047 4048 Performance improvements in the x64 and ARM backends. 4049 4050 4051 2010-05-10: Version 2.2.9 4052 4053 Allowed Object.create to be called with a function (issue 697). 4054 4055 Fixed bug with Date.parse returning a non-NaN value when called on a 4056 non date string (issue 696). 4057 4058 Allowed unaligned memory accesses on ARM targets that support it (by 4059 Subrato K De of CodeAurora <subratokde (a] codeaurora.org>). 4060 4061 C++ API for retrieving JavaScript stack trace information. 4062 4063 4064 2010-05-05: Version 2.2.8 4065 4066 Performance improvements in the x64 and ARM backends. 4067 4068 4069 2010-05-03: Version 2.2.7 4070 4071 Added support for ES5 date time string format to Date.parse. 4072 4073 Performance improvements in the x64 backend. 4074 4075 4076 2010-04-28: Version 2.2.6 4077 4078 Added "amd64" as recognized architecture in scons build script 4079 (by Ryan Dahl <coldredlemur (a] gmail.com>). 4080 4081 Fixed bug in String search and replace with very simple RegExps. 4082 4083 Fixed bug in RegExp containing "\b^". 4084 4085 Performance improvements on all platforms. 4086 4087 4088 2010-04-26: Version 2.2.5 4089 4090 Various performance improvements (especially for ARM and x64) 4091 4092 Fixed bug in CPU profiling (http://crbug.com/42137) 4093 4094 Fixed a bug with the natives cache. 4095 4096 Fixed two bugs in the ARM code generator that can cause 4097 wrong calculations. 4098 4099 Fixed a bug that may cause a wrong result for shift operations. 4100 4101 4102 2010-04-21: Version 2.2.4 4103 4104 Fixed warnings on arm on newer GCC versions. 4105 4106 Fixed a number of minor bugs. 4107 4108 Performance improvements on all platforms. 4109 4110 4111 2010-04-14: Version 2.2.3 4112 4113 Added stack command and mem command to ARM simulator debugger. 4114 4115 Fixed scons snapshot and ARM build, and Windows X64 build issues. 4116 4117 Performance improvements on all platforms. 4118 4119 4120 2010-04-12: Version 2.2.2 4121 4122 Introduced new profiler API. 4123 4124 Fixed random number generator to produce full 32 random bits. 4125 4126 4127 2010-04-06: Version 2.2.1 4128 4129 Debugger improvements. 4130 4131 Fixed minor bugs. 4132 4133 4134 2010-03-29: Version 2.2.0 4135 4136 Fixed a few minor bugs. 4137 4138 Performance improvements for string operations. 4139 4140 4141 2010-03-26: Version 2.1.10 4142 4143 Fixed scons build issues. 4144 4145 Fixed a couple of minor bugs. 4146 4147 4148 2010-03-25: Version 2.1.9 4149 4150 Added API support for reattaching a global object to a context. 4151 4152 Extended debugger API with access to the internal debugger context. 4153 4154 Fixed Chromium crashes (issues http://crbug.com/39128 and 4155 http://crbug.com/39160) 4156 4157 4158 2010-03-24: Version 2.1.8 4159 4160 Added fine-grained garbage collection callbacks to the API. 4161 4162 Performance improvements on all platforms. 4163 4164 4165 2010-03-22: Version 2.1.7 4166 4167 Fixed issue 650. 4168 4169 Fixed a bug where __proto__ was sometimes enumerated (issue 646). 4170 4171 Performance improvements for arithmetic operations. 4172 4173 Performance improvements for string operations. 4174 4175 Print script name and line number information in stack trace. 4176 4177 4178 2010-03-17: Version 2.1.6 4179 4180 Performance improvements for arithmetic operations. 4181 4182 Performance improvements for string operations. 4183 4184 4185 2010-03-10: Version 2.1.4 4186 4187 Fixed code cache lookup for keyed IC's (issue http://crbug.com/37853). 4188 4189 Performance improvements on all platforms. 4190 4191 4192 2010-03-10: Version 2.1.3 4193 4194 Added API method for context-disposal notifications. 4195 4196 Added API method for accessing elements by integer index. 4197 4198 Added missing implementation of Uint32::Value and Value::IsUint32 4199 API methods. 4200 4201 Added IsExecutionTerminating API method. 4202 4203 Disabled strict aliasing for GCC 4.4. 4204 4205 Fixed string-concatenation bug (issue 636). 4206 4207 Performance improvements on all platforms. 4208 4209 4210 2010-02-23: Version 2.1.2 4211 4212 Fixed a crash bug caused by wrong assert. 4213 4214 Fixed a bug with register names on 64-bit V8 (issue 615). 4215 4216 Performance improvements on all platforms. 4217 4218 4219 2010-02-19: Version 2.1.1 4220 4221 [ES5] Implemented Object.defineProperty. 4222 4223 Improved profiler support. 4224 4225 Added SetPrototype method in the public V8 API. 4226 4227 Added GetScriptOrigin and GetScriptLineNumber methods to Function 4228 objects in the API. 4229 4230 Performance improvements on all platforms. 4231 4232 4233 2010-02-03: Version 2.1.0 4234 4235 Values are now always wrapped in objects when used as a receiver. 4236 (issue 223). 4237 4238 [ES5] Implemented Object.getOwnPropertyNames. 4239 4240 [ES5] Restrict JSON.parse to only accept strings that conforms to the 4241 JSON grammar. 4242 4243 Improvement of debugger agent (issue 549 and 554). 4244 4245 Fixed problem with skipped stack frame in profiles (issue 553). 4246 4247 Solaris support by Erich Ocean <erich.ocean (a] me.com> and Ryan Dahl 4248 <ry (a] tinyclouds.org>. 4249 4250 Fixed a bug that Math.round() returns incorrect results for huge 4251 integers. 4252 4253 Fixed enumeration order for objects created from some constructor 4254 functions (isue http://crbug.com/3867). 4255 4256 Fixed arithmetic on some integer constants (issue 580). 4257 4258 Numerous performance improvements including porting of previous IA-32 4259 optimizations to x64 and ARM architectures. 4260 4261 4262 2010-01-14: Version 2.0.6 4263 4264 Added ES5 Object.getPrototypeOf, GetOwnPropertyDescriptor, 4265 GetOwnProperty, FromPropertyDescriptor. 4266 4267 Fixed Mac x64 build errors. 4268 4269 Improved performance of some math and string operations. 4270 4271 Improved performance of some regexp operations. 4272 4273 Improved performance of context creation. 4274 4275 Improved performance of hash tables. 4276 4277 4278 2009-12-18: Version 2.0.5 4279 4280 Extended to upper limit of map space to allow for 7 times as many map 4281 to be allocated (issue 524). 4282 4283 Improved performance of code using closures. 4284 4285 Improved performance of some binary operations involving doubles. 4286 4287 4288 2009-12-16: Version 2.0.4 4289 4290 Added ECMAScript 5 Object.create. 4291 4292 Improved performance of Math.max and Math.min. 4293 4294 Optimized adding of strings on 64-bit platforms. 4295 4296 Improved handling of external strings by using a separate table 4297 instead of weak handles. This improves garbage collection 4298 performance and uses less memory. 4299 4300 Changed code generation for object and array literals in toplevel 4301 code to be more compact by doing more work in the runtime. 4302 4303 Fixed a crash bug triggered when garbage collection happened during 4304 generation of a callback load inline cache stub. 4305 4306 Fixed crash bug sometimes triggered when local variables shadowed 4307 parameters in functions that used the arguments object. 4308 4309 4310 2009-12-03: Version 2.0.3 4311 4312 Optimized handling and adding of strings, for-in and Array.join. 4313 4314 Heap serialization is now non-destructive. 4315 4316 Improved profiler support with information on time spend in C++ 4317 callbacks registered through the API. 4318 4319 Added commands to the debugger protocol for starting/stopping 4320 profiling. 4321 4322 Enabled the non-optimizing compiler for top-level code. 4323 4324 Changed the API to only allow strings to be set as data objects on 4325 Contexts and scripts to avoid potentially keeping global objects 4326 around for too long (issue 528). 4327 4328 OpenBSD support patch by Peter Valchev <pvalchev (a] gmail.com>. 4329 4330 Fixed bugs. 4331 4332 4333 2009-11-24: Version 2.0.2 4334 4335 Improved profiler support. 4336 4337 Fixed bug that broke compilation of d8 with readline support. 4338 4339 4340 2009-11-20: Version 2.0.1 4341 4342 Fixed crash bug in String.prototype.replace. 4343 4344 Reverted a change which caused Chromium interactive ui test 4345 failures. 4346 4347 4348 2009-11-18: Version 2.0.0 4349 4350 Added support for VFP on ARM. 4351 4352 Added TryCatch::ReThrow method to the API. 4353 4354 Reduced the size of snapshots and improved the snapshot load time. 4355 4356 Improved heap profiler support. 4357 4358 64-bit version now supported on Windows. 4359 4360 Fixed a number of debugger issues. 4361 4362 Fixed bugs. 4363 4364 4365 2009-10-29: Version 1.3.18 4366 4367 Reverted a change which caused crashes in RegExp replace. 4368 4369 Reverted a change which caused Chromium ui_tests failure. 4370 4371 4372 2009-10-28: Version 1.3.17 4373 4374 Added API method to get simple heap statistics. 4375 4376 Improved heap profiler support. 4377 4378 Fixed the implementation of the resource constraint API so it 4379 works when using snapshots. 4380 4381 Fixed a number of issues in the Windows 64-bit version. 4382 4383 Optimized calls to API getters. 4384 4385 Added valgrind notification on code modification to the 64-bit version. 4386 4387 Fixed issue where we logged shared library addresses on Windows at 4388 startup and never used them. 4389 4390 4391 2009-10-16: Version 1.3.16 4392 4393 X64: Convert smis to holding 32 bits of payload. 4394 4395 Introduced v8::Integer::NewFromUnsigned method. 4396 4397 Added missing null check in Context::GetCurrent. 4398 4399 Added trim, trimLeft and trimRight methods to String 4400 Patch by Jan de Mooij <jandemooij (a] gmail.com> 4401 4402 Implement ES5 Array.isArray 4403 Patch by Jan de Mooij <jandemooij (a] gmail.com> 4404 4405 Skip access checks for hidden properties. 4406 4407 Added String::Concat(Handle<String> left, Handle<String> right) to the 4408 V8 API. 4409 4410 Fixed GYP-based builds of V8. 4411 4412 4413 2009-10-07: Version 1.3.15 4414 4415 Expanded the maximum size of the code space to 512MB for 64-bit mode. 4416 4417 Fixed a crash bug happening when starting profiling (issue 4418 http://crbug.com/23768). 4419 4420 4421 2009-10-07: Version 1.3.14 4422 4423 Added GetRealNamedProperty to the API to lookup real properties 4424 located on the object or in the prototype chain skipping any 4425 interceptors. 4426 4427 Fixed the stack limits setting API to work correctly with threads. The 4428 stack limit now needs to be set to each thread thich is used with V8. 4429 4430 Removed the high-priority flag from IdleNotification() 4431 4432 Ensure V8 is initialized before locking and unlocking threads. 4433 4434 Implemented a new JavaScript minifier for compressing the source of 4435 the built-in JavaScript. This removes non-Open Source code from Douglas 4436 Crockford from the project. 4437 4438 Added a missing optimization in StringCharAt. 4439 4440 Fixed some flaky socket tests. 4441 4442 Change by Alexander Botero-Lowry to fix profiler sampling on FreeBSD 4443 in 64-bit mode. 4444 4445 Fixed memory leaks in the thread management code. 4446 4447 Fixed the result of assignment to a pixel array. The assigned value 4448 is now the result. 4449 4450 Error reporting for invalid left-hand sides in for-in statements, pre- 4451 and postfix count expressions, and assignments now matches the JSC 4452 behavior in Safari 4. 4453 4454 Follow the spec in disallowing function declarations without a name. 4455 4456 Always allocate code objects within a 2 GB range. On x64 architecture 4457 this is used to use near calls (32-bit displacement) in Code objects. 4458 4459 Optimized array construction ported to x64 and ARM architectures. 4460 4461 [ES5] Changed Object.keys to return strings for element indices. 4462 4463 4464 2009-09-23: Version 1.3.13 4465 4466 Fixed uninitialized memory problem. 4467 4468 Improved heap profiler support. 4469 4470 4471 2009-09-22: Version 1.3.12 4472 4473 Changed behavior of |function|.toString() on built-in functions to 4474 be compatible with other implementations. Patch by Jan de Mooij. 4475 4476 Added Object::IsDirty in the API. 4477 4478 Optimized array construction; it is now handled purely in native 4479 code. 4480 4481 [ES5] Made properties of the arguments array enumerable. 4482 4483 [ES5] Added test suite adapter for the es5conform test suite. 4484 4485 [ES5] Added Object.keys function. 4486 4487 4488 2009-09-15: Version 1.3.11 4489 4490 Fixed crash in error reporting during bootstrapping. 4491 4492 Optimized generated IA32 math code by using SSE2 instructions when 4493 available. 4494 4495 Implemented missing pieces of debugger infrastructure on ARM. The 4496 debugger is now fully functional on ARM. 4497 4498 Made 'hidden' the default visibility for gcc. 4499 4500 4501 2009-09-09: Version 1.3.10 4502 4503 Fixed profiler on Mac in 64-bit mode. 4504 4505 Optimized creation of objects from simple constructor functions on 4506 ARM. 4507 4508 Fixed a number of debugger issues. 4509 4510 Reduced the amount of memory consumed by V8. 4511 4512 4513 2009-09-02: Version 1.3.9 4514 4515 Optimized stack guard checks on ARM. 4516 4517 Optimized API operations by inlining more in the API. 4518 4519 Optimized creation of objects from simple constructor functions. 4520 4521 Enabled a number of missing optimizations in the 64-bit port. 4522 4523 Implemented native-code support for regular expressions on ARM. 4524 4525 Stopped using the 'sahf' instruction on 64-bit machines that do 4526 not support it. 4527 4528 Fixed a bug in the support for forceful termination of JavaScript 4529 execution. 4530 4531 4532 2009-08-26: Version 1.3.8 4533 4534 Changed the handling of idle notifications to allow idle 4535 notifications when V8 has not yet been initialized. 4536 4537 Fixed ARM simulator compilation problem on Windows. 4538 4539 4540 2009-08-25: Version 1.3.7 4541 4542 Reduced the size of generated code on ARM platforms by reducing 4543 the size of constant pools. 4544 4545 Changed build files to not include the 'ENV' user environment 4546 variable in the build environment. 4547 4548 Changed the handling of idle notifications. 4549 4550 4551 2009-08-21: Version 1.3.6 4552 4553 Added support for forceful termination of JavaScript execution. 4554 4555 Added low memory notification to the API. The embedding host can signal 4556 a low memory situation to V8. 4557 4558 Changed the handling of global handles (persistent handles in the API 4559 sense) to avoid issues regarding allocation of new global handles 4560 during weak handle callbacks. 4561 4562 Changed the growth policy of the young space. 4563 4564 Fixed a GC issue introduced in version 1.3.5. 4565 4566 4567 2009-08-19: Version 1.3.5 4568 4569 Optimized initialization of some arrays in the builtins. 4570 4571 Fixed mac-nm script to support filenames with spaces. 4572 4573 Support for using the V8 profiler when V8 is embedded in a Windows DLL. 4574 4575 Changed typeof RegExp from 'object' to 'function' for compatibility. 4576 Fixed bug where regexps were not callable across contexts. 4577 4578 Added context independent script compilation to the API. 4579 4580 Added API call to get the stack trace for an exception. 4581 4582 Added API for getting object mirrors. 4583 4584 Made sure that SSE3 instructions are used whenever possible even when 4585 running off a snapshot generated without using SSE3 instructions. 4586 4587 Tweaked the handling of the initial size and growth policy of the heap. 4588 4589 Added native code generation for RegExp to 64-bit version. 4590 4591 Added JavaScript debugger support to 64-bit version. 4592 4593 4594 2009-08-13: Version 1.3.4 4595 4596 Added a readline() command to the d8 shell. 4597 4598 Fixed bug in json parsing. 4599 4600 Added idle notification to the API and reduced memory on idle 4601 notifications. 4602 4603 4604 2009-08-12: Version 1.3.3 4605 4606 Fixed issue 417: incorrect %t placeholder expansion. 4607 4608 Added .gitignore file similar to Chromium's one. 4609 4610 Fixed SConstruct file to build with new logging code for Android. 4611 4612 API: added function to find instance of template in prototype 4613 chain. Inlined Object::IsInstanceOf. 4614 4615 Land change to notify valgrind when we modify code on x86. 4616 4617 Added api call to determine whether a string can be externalized. 4618 4619 Added a write() command to d8. 4620 4621 4622 2009-08-05: Version 1.3.2 4623 4624 Started new compiler infrastructure for two-pass compilation using a 4625 control flow graph constructed from the AST. 4626 4627 Profiler stack sampling for X64. 4628 4629 Safe handling of NaN to Posix platform-dependent time functions. 4630 4631 Added a new profiler control API to unify controlling various aspects 4632 of profiling. 4633 4634 Fixed issue 392. 4635 4636 4637 2009-07-30: Version 1.3.1 4638 4639 Speed improvements to accessors and interceptors. 4640 4641 Added support for capturing stack information on custom errors. 4642 4643 Added support for morphing an object into a pixel array where its 4644 indexed properties are stored in an external byte array. Values written 4645 are always clamped to the 0..255 interval. 4646 4647 Profiler on x64 now handles C/C++ functions from shared libraries. 4648 4649 Changed the debugger to avoid stepping into function.call/apply if the 4650 function is a built-in. 4651 4652 Initial implementation of constructor heap profile for JS objects. 4653 4654 More fine grained control of profiling aspects through the API. 4655 4656 Optimized the called as constructor check for API calls. 4657 4658 4659 2009-07-27: Version 1.3.0 4660 4661 Allowed RegExp objects to be called as functions (issue 132). 4662 4663 Fixed issue where global property cells would escape after 4664 detaching the global object; see http://crbug.com/16276. 4665 4666 Added support for stepping into setters and getters in the 4667 debugger. 4668 4669 Changed the debugger to avoid stopping in its own JavaScript code 4670 and in the code of built-in functions. 4671 4672 Fixed issue 345 by avoiding duplicate escaping labels. 4673 4674 Fixed ARM code generator crash in short-circuited boolean 4675 expressions and added regression tests. 4676 4677 Added an external allocation limit to avoid issues where small V8 4678 objects would hold on to large amounts of external memory without 4679 causing garbage collections. 4680 4681 Finished more of the inline caching stubs for x64 targets. 4682 4683 4684 2009-07-13: Version 1.2.14 4685 4686 Added separate paged heap space for global property cells and 4687 avoid updating the write barrier when storing into them. 4688 4689 Improved peep-hole optimization on ARM platforms by not emitting 4690 unnecessary debug information. 4691 4692 Re-enabled ICs for loads and calls that skip a global object 4693 during lookup through the prototype chain. 4694 4695 Allowed access through global proxies to use ICs. 4696 4697 Fixed issue 401. 4698 4699 4700 2009-07-09: Version 1.2.13 4701 4702 Fixed issue 397, issue 398, and issue 399. 4703 4704 Added support for breakpoint groups. 4705 4706 Fixed bugs introduced with the new global object representation. 4707 4708 Fixed a few bugs in the ARM code generator. 4709 4710 4711 2009-07-06: Version 1.2.12 4712 4713 Added stack traces collection to Error objects accessible through 4714 the e.stack property. 4715 4716 Changed RegExp parser to use a recursive data structure instead of 4717 stack-based recursion. 4718 4719 Optimized Date object construction and string concatenation. 4720 4721 Improved performance of div, mod, and mul on ARM platforms. 4722 4723 4724 2009-07-02: Version 1.2.11 4725 4726 Improved performance on IA-32 and ARM. 4727 4728 Fixed profiler sampler implementation on Mac OS X. 4729 4730 Changed the representation of global objects to improve 4731 performance of adding a lot of new properties. 4732 4733 4734 2009-06-29: Version 1.2.10 4735 4736 Improved debugger support. 4737 4738 Fixed bug in exception message reporting (issue 390). 4739 4740 Improved overall performance. 4741 4742 4743 2009-06-23: Version 1.2.9 4744 4745 Improved math performance on ARM. 4746 4747 Fixed profiler name-inference bug. 4748 4749 Fixed handling of shared libraries in the profiler tick processor 4750 scripts. 4751 4752 Fixed handling of tests that time out in the test scripts. 4753 4754 Fixed compilation on MacOS X version 10.4. 4755 4756 Fixed two bugs in the regular expression engine. 4757 4758 Fixed a bug in the string type inference. 4759 4760 Fixed a bug in the handling of 'constant function' properties. 4761 4762 Improved overall performance. 4763 4764 4765 2009-06-16: Version 1.2.8 4766 4767 Optimized math on ARM platforms. 4768 4769 Fixed two crash bugs in the handling of getters and setters. 4770 4771 Improved the debugger support by adding scope chain information. 4772 4773 Improved the profiler support by compressing log data transmitted 4774 to clients. 4775 4776 Improved overall performance. 4777 4778 4779 2009-06-08: Version 1.2.7 4780 4781 Improved debugger and profiler support. 4782 4783 Reduced compilation time by improving the handling of deferred 4784 code. 4785 4786 Optimized interceptor accesses where the property is on the object 4787 on which the interceptors is attached. 4788 4789 Fixed compilation problem on GCC 4.4 by changing the stack 4790 alignment to 16 bytes. 4791 4792 Fixed handle creation to follow stric aliasing rules. 4793 4794 Fixed compilation on FreeBSD. 4795 4796 Introduced API for forcing the deletion of a property ignoring 4797 interceptors and attributes. 4798 4799 4800 2009-05-29: Version 1.2.6 4801 4802 Added a histogram recording hit rates at different levels of the 4803 compilation cache. 4804 4805 Added stack overflow check for the RegExp analysis phase. Previously a 4806 very long regexp graph could overflow the stack with recursive calls. 4807 4808 Use a dynamic buffer when collecting log events in memory. 4809 4810 Added start/stop events to the profiler log. 4811 4812 Fixed infinite loop which could happen when setting a debug break while 4813 executing a RegExp compiled to native code. 4814 4815 Fixed handling of lastIndexOf called with negative index (issue 351). 4816 4817 Fixed irregular crash in profiler test (issue 358). 4818 4819 Fixed compilation issues with some versions of gcc. 4820 4821 4822 2009-05-26: Version 1.2.5 4823 4824 Fixed bug in initial boundary check for Boyer-Moore text 4825 search (issue 349). 4826 4827 Fixed compilation issues with MinGW and gcc 4.3+ and added support 4828 for armv7 and cortex-a8 architectures. Patches by Lei Zhang and 4829 Craig Schlenter. 4830 4831 Added a script cache to the debugger. 4832 4833 Optimized compilation performance by improving internal data 4834 structures and avoiding expensive property load optimizations for 4835 code that's infrequently executed. 4836 4837 Exposed the calling JavaScript context through the static API 4838 function Context::GetCalling(). 4839 4840 4841 2009-05-18: Version 1.2.4 4842 4843 Improved performance of floating point number allocation for ARM 4844 platforms. 4845 4846 Fixed crash when using the instanceof operator on functions with 4847 number values in their prototype chain (issue 341). 4848 4849 Optimized virtual frame operations in the code generator to speed 4850 up compilation time and allocated the frames in the zone. 4851 4852 Made the representation of virtual frames and jump targets in the 4853 code generator much more compact. 4854 4855 Avoided linear search for non-locals in scope code when resolving 4856 variables inside with and eval scopes. 4857 4858 Optimized lexical scanner by dealing with whitespace as part of 4859 the token scanning instead of as a separate step before it. 4860 4861 Changed the scavenging collector so that promoted objects do not 4862 reside in the old generation while their remembered set is being 4863 swept for pointers into the young generation. 4864 4865 Fixed numeric overflow handling when compiling count operations. 4866 4867 4868 2009-05-11: Version 1.2.3 4869 4870 Fixed bug in reporting of out-of-memory situations. 4871 4872 Introduced hidden prototypes on certain builtin prototype objects 4873 such as String.prototype to emulate JSC's behavior of restoring 4874 the original function when deleting functions from those prototype 4875 objects. 4876 4877 Fixed crash bug in the register allocator. 4878 4879 4880 2009-05-04: Version 1.2.2 4881 4882 Fixed bug in array sorting for sparse arrays (issue 326). 4883 4884 Added support for adding a soname when building a shared library 4885 on Linux (issue 151). 4886 4887 Fixed bug caused by morphing internal ASCII strings to external 4888 two-byte strings. Slices over ASCII strings have to forward ASCII 4889 checks to the underlying buffer string. 4890 4891 Allowed API call-as-function handlers to be called as 4892 constructors. 4893 4894 Fixed a crash bug where an external string was disposed but a 4895 slice of the external string survived as a symbol. 4896 4897 4898 2009-04-27: Version 1.2.1 4899 4900 Added EcmaScript 5 JSON object. 4901 4902 Fixed bug in preemption support on ARM. 4903 4904 4905 2009-04-23: Version 1.2.0 4906 4907 Optimized floating-point operations on ARM. 4908 4909 Added a number of extensions to the debugger API. 4910 4911 Changed the enumeration order for unsigned integer keys to always 4912 be numerical order. 4913 4914 Added a "read" extension to the shell sample. 4915 4916 Added support for Array.prototype.reduce and 4917 Array.prototype.reduceRight. 4918 4919 Added an option to the SCons build to control Microsoft Visual C++ 4920 link-time code generation. 4921 4922 Fixed a number of bugs (in particular issue 315, issue 316, 4923 issue 317 and issue 318). 4924 4925 4926 2009-04-15: Version 1.1.10 4927 4928 Fixed crash bug that occurred when loading a const variable in the 4929 presence of eval. 4930 4931 Allowed using with and eval in registered extensions in debug mode 4932 by fixing bogus assert. 4933 4934 Fixed the source position for function returns to enable the 4935 debugger to break there. 4936 4937 4938 2009-04-14: Version 1.1.9 4939 4940 Made the stack traversal code in the profiler robust by avoiding 4941 to look into the heap. 4942 4943 Added name inferencing for anonymous functions to facilitate 4944 debugging and profiling. 4945 4946 Re-enabled stats timers in the developer shell (d8). 4947 4948 Fixed issue 303 by avoiding to shortcut cons-symbols. 4949 4950 4951 2009-04-11: Version 1.1.8 4952 4953 Changed test-debug/ThreadedDebugging to be non-flaky (issue 96). 4954 4955 Fixed step-in handling for Function.prototype.apply and call in 4956 the debugger (issue 269). 4957 4958 Fixed v8::Object::DeleteHiddenValue to not bail out when there 4959 are no hidden properties. 4960 4961 Added workaround for crash bug, where external symbol table 4962 entries with deleted resources would lead to NPEs when looking 4963 up in the symbol table. 4964 4965 4966 2009-04-07: Version 1.1.7 4967 4968 Added support for easily importing additional environment 4969 variables into the SCons build. 4970 4971 Optimized strict equality checks. 4972 4973 Fixed crash in indexed setters on objects without a corresponding 4974 getter (issue 298). 4975 4976 Re-enabled script compilation cache. 4977 4978 4979 2009-04-01: Version 1.1.6 4980 4981 Reverted an unsafe code generator change. 4982 4983 4984 2009-04-01: Version 1.1.5 4985 4986 Fixed bug that caused function literals to not be optimized as 4987 much as other functions. 4988 4989 Improved profiler support. 4990 4991 Fixed a crash bug in connection with debugger unloading. 4992 4993 Fixed a crash bug in the code generator caused by losing the 4994 information that a frame element was copied. 4995 4996 Fixed an exception propagation bug that could cause non-null 4997 return values when exceptions were thrown. 4998 4999 5000 2009-03-30: Version 1.1.4 5001 5002 Optimized String.prototype.match. 5003 5004 Improved the stack information in profiles. 5005 5006 Fixed bug in ARM port making it possible to compile the runtime 5007 system for thumb mode again. 5008 5009 Implemented a number of optimizations in the code generator. 5010 5011 Fixed a number of memory leaks in tests. 5012 5013 Fixed crash bug in connection with script source code and external 5014 strings. 5015 5016 5017 2009-03-24: Version 1.1.3 5018 5019 Fixed assertion failures in compilation of loop conditions. 5020 5021 Removed STL dependency from developer shell (d8). 5022 5023 Added infrastructure for protecting the V8 heap from corruption 5024 caused by memory modifications from the outside. 5025 5026 5027 2009-03-24: Version 1.1.2 5028 5029 Improved frame merge code generated by the code generator. 5030 5031 Optimized String.prototype.replace. 5032 5033 Implemented __defineGetter__ and __defineSetter__ for properties 5034 with integer keys on non-array objects. 5035 5036 Improved debugger and profiler support. 5037 5038 Fixed a number of portability issues to allow compilation for 5039 smaller ARM devices. 5040 5041 Exposed object cloning through the API. 5042 5043 Implemented hidden properties. This is used to expose an identity 5044 hash for objects through the API. 5045 5046 Implemented restarting of regular expressions if their input 5047 string changes representation during preemption. 5048 5049 Fixed a code generator bug that could cause assignments in loops 5050 to be ignored if using continue to break out of the loop (issue 5051 284). 5052 5053 5054 2009-03-12: Version 1.1.1 5055 5056 Fixed an assertion in the new compiler to take stack overflow 5057 exceptions into account. 5058 5059 Removed exception propagation code that could cause crashes. 5060 5061 Fixed minor bug in debugger line number computations. 5062 5063 8-byte align the C stack on Linux and Windows to speed up floating 5064 point computations. 5065 5066 5067 2009-03-12: Version 1.1.0 5068 5069 Improved code generation infrastructure by doing simple register 5070 allocation and constant folding and propagation. 5071 5072 Optimized regular expression matching by avoiding to create 5073 intermediate string arrays and by flattening nested array 5074 representations of RegExp data. 5075 5076 Traverse a few stack frames when recording profiler samples to 5077 include partial call graphs in the profiling output. 5078 5079 Added support for using OProfile to profile generated code. 5080 5081 Added remote debugging support to the D8 developer shell. 5082 5083 Optimized creation of nested literals like JSON objects. 5084 5085 Fixed a bug in garbage collecting unused maps and turned it on by 5086 default (--collect-maps). 5087 5088 Added support for running tests under Valgrind. 5089 5090 5091 2009-02-27: Version 1.0.3 5092 5093 Optimized double-to-integer conversions in bit operations by using 5094 SSE3 instructions if available. 5095 5096 Optimized initialization sequences that store to multiple 5097 properties of the same object. 5098 5099 Changed the D8 debugger frontend to use JSON messages. 5100 5101 Force garbage collections when disposing contexts. 5102 5103 Align code objects at 32-byte boundaries. 5104 5105 5106 2009-02-25: Version 1.0.2 5107 5108 Improved profiling support by performing simple call stack 5109 sampling for ticks and by fixing a bug in the logging of code 5110 addresses. 5111 5112 Fixed a number of debugger issues. 5113 5114 Optimized code that uses eval. 5115 5116 Fixed a couple of bugs in the regular expression engine. 5117 5118 Reduced the size of generated code for certain regular expressions. 5119 5120 Removed JSCRE completely. 5121 5122 Fixed issue where test could not be run if there was a dot in the 5123 checkout path. 5124 5125 5126 2009-02-13: Version 1.0.1 5127 5128 Fixed two crash-bugs in irregexp (issue 231 and 233). 5129 5130 Fixed a number of minor bugs (issue 87, 227 and 228). 5131 5132 Added support for morphing strings to external strings on demand 5133 to avoid having to create copies in the embedding code. 5134 5135 Removed experimental support for external symbol callbacks. 5136 5137 5138 2009-02-09: Version 1.0.0 5139 5140 Fixed crash-bug in the code generation for case independent 16 bit 5141 backreferences. 5142 5143 Made shells more robust in the presence of string conversion 5144 failures (issue 224). 5145 5146 Fixed a potential infinite loop when attempting to resolve 5147 eval (issue 221). 5148 5149 Miscellaneous fixes to the new regular expression engine. 5150 5151 Reduced binary by stripping unneeded text from JavaScript library and 5152 minifying some JavaScript files. 5153 5154 5155 2009-01-27: Version 0.4.9 5156 5157 Enabled new regular expression engine. 5158 5159 Made a number of changes to the debugger protocol. 5160 5161 Fixed a number of bugs in the preemption support. 5162 5163 Added -p option to the developer shell to run files in parallel 5164 using preemption. 5165 5166 Fixed a number of minor bugs (including issues 176, 187, 189, 192, 5167 193, 198 and 201). 5168 5169 Fixed a number of bugs in the serialization/deserialization 5170 support for the ARM platform. 5171 5172 5173 2009-01-19: Version 0.4.8.1 5174 5175 Minor patch to debugger support. 5176 5177 5178 2009-01-16: Version 0.4.8 5179 5180 Fixed string length bug on ARM (issue 171). 5181 5182 Made most methods in the API const. 5183 5184 Optimized object literals by improving data locality. 5185 5186 Fixed bug that caused incomplete functions to be cached in case of 5187 stack overflow exceptions. 5188 5189 Fixed bugs that caused catch variables and variables introduced by 5190 eval to behave incorrectly when using accessors (issues 186, 190 5191 and 191). 5192 5193 5194 2009-01-06: Version 0.4.7 5195 5196 Minor bugfixes and optimizations. 5197 5198 Added command line debugger to D8 shell. 5199 5200 Fixed subtle bug that caused the wrong 'this' to be used when 5201 calling a caught function in a catch clause. 5202 5203 Inline array loads within loops directly in the code instead of 5204 always calling a stub. 5205 5206 5207 2008-12-11: Version 0.4.6 5208 5209 Fixed exception reporting bug where certain exceptions were 5210 incorrectly reported as uncaught. 5211 5212 Improved the memory allocation strategy used during compilation to 5213 make running out of memory when compiling huge scripts less 5214 likely. 5215 5216 Optimized String.replace by avoiding the construction of certain 5217 sub strings. 5218 5219 Fixed bug in code generation for large switch statements on ARM. 5220 5221 Fixed bug that caused V8 to change the global object template 5222 passed in by the user. 5223 5224 Changed the API for creating object groups used during garbage 5225 collection. Entire object groups are now passed to V8 instead of 5226 individual members of the groups. 5227 5228 5229 2008-12-03: Version 0.4.5 5230 5231 Added experimental API support for allocating V8 symbols as 5232 external strings. 5233 5234 Fixed bugs in debugging support on ARM. 5235 5236 Changed eval implementation to correctly detect whether or not a 5237 call to eval is aliased. 5238 5239 Fixed bug caused by a combination of the compilation cache and 5240 dictionary probing in native code. The bug caused us to sometimes 5241 call functions that had not yet been compiled. 5242 5243 Added platform support for FreeBSD. 5244 5245 Added support for building V8 on Windows with either the shared or 5246 static version of MSVCRT 5247 5248 Added the v8::jscre namespace around the jscre functions to avoid 5249 link errors (duplicate symbols) when building Google Chrome. 5250 5251 Added support for calling a JavaScript function with the current 5252 debugger execution context as its argument to the debugger 5253 interface. 5254 5255 Changed the type of names of counters from wchar_t to char. 5256 5257 Changed the Windows system call used to compute daylight savings 5258 time. The system call that we used to use became four times 5259 slower on WinXP SP3. 5260 5261 Added support in the d8 developer shell for memory-mapped counters 5262 and added a stats-viewer tool. 5263 5264 Fixed bug in upper/lower case mappings (issue 149). 5265 5266 5267 2008-11-17: Version 0.4.4 5268 5269 Reduced code size by using shorter instruction encoding when 5270 possible. 5271 5272 Added a --help option to the shell sample and to the d8 shell. 5273 5274 Added visual studio project files for building the ARM simulator. 5275 5276 Fixed a number of ARM simulator issues. 5277 5278 Fixed bug in out-of-memory handling on ARM. 5279 5280 Implemented shell support for passing arguments to a script from 5281 the command line. 5282 5283 Fixed bug in date code that made certain date functions return -0 5284 instead of 0 for dates before the epoch. 5285 5286 Restricted applications of eval so it can only be used in the 5287 context of the associated global object. 5288 5289 Treat byte-order marks as whitespace characters. 5290 5291 5292 2008-11-04: Version 0.4.3 5293 5294 Added support for API accessors that prohibit overwriting by 5295 accessors defined in JavaScript code by using __defineGetter__ and 5296 __defineSetter__. 5297 5298 Improved handling of conditionals in test status files. 5299 5300 Introduced access control in propertyIsEnumerable. 5301 5302 Improved performance of some string operations by caching 5303 information about the type of the string between operations. 5304 5305 Fixed bug in fast-case code for switch statements that only have 5306 integer labels. 5307 5308 5309 2008-10-30: Version 0.4.2 5310 5311 Improved performance of Array.prototype.concat by moving the 5312 implementation to C++ (issue 123). 5313 5314 Fixed heap growth policy to avoid growing old space to its maximum 5315 capacity before doing a garbage collection and fixed issue that 5316 would lead to artificial out of memory situations (issue 129). 5317 5318 Fixed Date.prototype.toLocaleDateString to return the date in the 5319 same format as WebKit. 5320 5321 Added missing initialization checks to debugger API. 5322 5323 Added removing of unused maps during GC. 5324 5325 5326 2008-10-28: Version 0.4.1 5327 5328 Added caching of RegExp data in compilation cache. 5329 5330 Added Visual Studio project file for d8 shell. 5331 5332 Fixed function call performance regression introduced in version 5333 0.4.0 when splitting the global object in two parts (issue 120). 5334 5335 Fixed issue 131 by checking for empty handles before throwing and 5336 reporting exceptions. 5337 5338 5339 2008-10-23: Version 0.4.0 5340 5341 Split the global object into two parts: The state holding global 5342 object and the global object proxy. 5343 5344 Fixed bug that affected the value of an assignment to an element 5345 in certain cases (issue 116). 5346 5347 Added GetPropertyNames functionality (issue 33) and extra Date 5348 functions (issue 77) to the API. 5349 5350 Changed WeakReferenceCallback to take a Persistent<Value> instead 5351 of a Persistent<Object> (issue 101). 5352 5353 Fixed issues with message reporting for exceptions in try-finally 5354 blocks (issues 73 and 75). 5355 5356 Optimized flattening of strings and string equality checking. 5357 5358 Improved Boyer-Moore implementation for faster indexOf operations. 5359 5360 Added development shell (d8) which includes counters and 5361 completion support. 5362 5363 Fixed problem with the receiver passed to functions called from 5364 eval (issue 124). 5365 5366 5367 2008-10-16: Version 0.3.5 5368 5369 Improved string hash-code distribution by excluding bit-field bits 5370 from the hash-code. 5371 5372 Changed string search algorithm used in indexOf from KMP to 5373 Boyer-Moore. 5374 5375 Improved the generated code for the instanceof operator. 5376 5377 Improved performance of slow-case string equality checks by 5378 specializing the code based on the string representation. 5379 5380 Improve the handling of out-of-memory situations (issue 70). 5381 5382 Improved performance of strict equality checks. 5383 5384 Improved profiler output to make it easier to see anonymous 5385 functions. 5386 5387 Improved performance of slow-case keyed loads. 5388 5389 Improved property access performance by allocating a number of 5390 properties in the front object. 5391 5392 Changed the toString behavior on the built-in object constructors 5393 to print [native code] instead of the actual source. Some web 5394 applications do not like constructors with complex toString 5395 results. 5396 5397 5398 2008-10-06: Version 0.3.4 5399 5400 Changed Array.prototype.sort to use quick sort. 5401 5402 Fixed code generation issue where leaving a finally block with 5403 break or continue would accumulate elements on the expression 5404 stack (issue 86). 5405 5406 Made sure that the name accessor on functions returns the expected 5407 names for builtin JavaScript functions and C++ callback functions. 5408 5409 Added fast case code for extending the property storage array of 5410 JavaScript objects. 5411 5412 Ported switch statement optimizations introduced in version 0.3.3 5413 to the ARM code generator. 5414 5415 Allowed GCC to use strict-aliasing rules when compiling. 5416 5417 Improved performance of arguments object allocation by taking care 5418 of arguments adaptor frames in the generated code. 5419 5420 Updated the V8 benchmark suite to version 2. 5421 5422 5423 2008-09-25: Version 0.3.3 5424 5425 Improved handling of relocation information to enable more 5426 peep-hole optimizations. 5427 5428 Optimized switch statements where all labels are constant small 5429 integers. 5430 5431 Optimized String.prototype.indexOf for common cases. 5432 5433 Fixed more build issues (issue 80). 5434 5435 Fixed a couple of profiler issues. 5436 5437 Fixed bug where the body of a function created using the Function 5438 constructor was not allowed to end with a single-line comment 5439 (issue 85). 5440 5441 Improved handling of object literals by canonicalizing object 5442 literal maps. This will allow JSON objects with the same set of 5443 properties to share the same map making inline caching work better 5444 for JSON objects. 5445 5446 5447 2008-09-17: Version 0.3.2 5448 5449 Generalized the EvalCache into a CompilationCache and enabled it 5450 for scripts too. The current strategy is to retire all entries 5451 whenever a mark-sweep collection is started. 5452 5453 Fixed bug where switch statements containing only a default case 5454 would lead to an unbalanced stack (issue 69). 5455 5456 Fixed bug that made access to the function in a named function 5457 expression impossible in certain situations (issue 24). 5458 5459 Fixed even more build issues. 5460 5461 Optimized calling conventions on ARM. The conventions on ARM and 5462 IA-32 now match. 5463 5464 Removed static initializers for flags and counters. 5465 5466 Improved inline caching behavior for uncommon cases where lazily 5467 loading Date and RegExp code could force certain code paths go 5468 megamorphic. 5469 5470 Removed arguments adaption for builtins written in C++. This 5471 makes Array.prototype.push and Array.prototype.pop slightly 5472 faster. 5473 5474 5475 2008-09-11: Version 0.3.1 5476 5477 Fixed a number of build issues. 5478 5479 Fixed problem with missing I-cache flusing on ARM. 5480 5481 Changed space layout in memory management by splitting up 5482 code space into old data space and code space. 5483 5484 Added utf-8 conversion support to the API (issue 57). 5485 5486 Optimized repeated calls to eval with the same strings. These 5487 repeated calls are common in web applications. 5488 5489 Added Xcode project file. 5490 5491 Optimized a couple of Array operation. 5492 5493 Fixed parser bug by checking for end-of-string when parsing break 5494 and continue (issue 35). 5495 5496 Fixed problem where asian characters were not categorized as 5497 letters. 5498 5499 Fixed bug that disallowed calling functions fetched from an array 5500 using a string as an array index (issue 32). 5501 5502 Fixed bug where the internal field count on object templates were 5503 sometimes ignored (issue 54). 5504 5505 Added -f option to the shell sample for compatibility with other 5506 engines (issue 18). 5507 5508 Added source info to TryCatches in the API. 5509 5510 Fixed problem where the seed for the random number generator was 5511 clipped in a double to unsigned int conversion. 5512 5513 Fixed bug where cons string symbols were sometimes converted to 5514 non-symbol flat strings during GC. 5515 5516 Fixed bug in error reporting when attempting to convert null to an 5517 object. 5518 5519 5520 2008-09-04: Version 0.3.0 5521 5522 Added support for running tests on the ARM simulator. 5523 5524 Fixed bug in the 'in' operator where negative indices were not 5525 treated correctly. 5526 5527 Fixed build issues on gcc-4.3.1. 5528 5529 Changed Date.prototype.toLocaleTimeString to not print the 5530 timezone part of the time. 5531 5532 Renamed debug.h to v8-debug.h to reduce the risk of name conflicts 5533 with user code. 5534 5535 5536 2008-09-02: Version 0.2.5 5537 5538 Renamed the top level directory 'public' to 'include'. 5539 5540 Added 'env' option to the SCons build scripts to support 5541 overriding the ENV part of the build environment. This is mostly 5542 to support Windows builds in cases where SCons cannot find the 5543 correct paths to the Windows SDK, as these paths cannot be passed 5544 through shell environment variables. 5545 5546 Enabled "Buffer Security Check" on for the Windows SCons build and 5547 added the linker option /OPT:ICF as an optimization. 5548 5549 Added the V8 benchmark suite to the repository. 5550 5551 5552 2008-09-01: Version 0.2.4 5553 5554 Included mjsunit JavaScript test suite and C++ unit tests. 5555 5556 Changed the shell sample to not print the result of executing a 5557 script provided on the command line. 5558 5559 Fixed issue when building samples on Windows using a shared V8 5560 library. Added visibility option on Linux build which makes the 5561 generated library 18% smaller. 5562 5563 Changed build system to accept multiple build modes in one build 5564 and generate separate objects, libraries and executables for each 5565 mode. 5566 5567 Removed deferred negation optimization (a * -b => -(a * b)) since 5568 this visibly changes operand conversion order. 5569 5570 Improved parsing performance by introducing stack guard in 5571 preparsing. Without a stack guard preparsing always bails out 5572 with stack overflow. 5573 5574 Changed shell sample to take flags directly from the command-line. 5575 Added API call that implements this. 5576 5577 Added load, quit and version functions to the shell sample so it's 5578 easier to run benchmarks and tests. 5579 5580 Fixed issue with building samples and cctests on 64-bit machines. 5581 5582 Fixed bug in the runtime system where the prototype chain was not 5583 always searched for a setter when setting a property that does not 5584 exist locally. 5585 5586 5587 2008-08-14: Version 0.2.3 5588 5589 Improved performance of garbage collection by moving the 5590 function that updates pointers during compacting collection 5591 into the updating visitor. This gives the compiler a better 5592 chance to inline and avoid a function call per (potential) 5593 pointer. 5594 5595 Extended the shell sample with a --runtime-flags option. 5596 5597 Added Visual Studio project files for the shell.cc and 5598 process.cc samples. 5599 5600 5601 2008-08-13: Version 0.2.2 5602 5603 Improved performance of garbage collection by changing the way 5604 we use the marking stack in the event of stack overflow during 5605 full garbage collection and by changing the way we mark roots. 5606 5607 Cleaned up ARM version by removing top of stack caching and by 5608 introducing push/pop elimination. 5609 5610 Cleaned up the way runtime functions are called to allow 5611 runtime calls with no arguments. 5612 5613 Changed Windows build options to make sure that exceptions are 5614 disabled and that optimization flags are enabled. 5615 5616 Added first version of Visual Studio project files. 5617 5618 5619 2008-08-06: Version 0.2.1 5620 5621 Improved performance of unary addition by avoiding runtime calls. 5622 5623 Fixed the handling of '>' and '<=' to use right-to-left conversion 5624 and left-to-right evaluation as specified by ECMA-262. 5625 5626 Fixed a branch elimination bug on the ARM platform where incorrect 5627 code was generated because of overly aggressive branch 5628 elimination. 5629 5630 Improved performance of code that repeatedly assigns the same 5631 function to the same property of different objects with the same 5632 map. 5633 5634 Untangled DEBUG and ENABLE_DISASSEMBLER defines. The disassembler 5635 no longer expects DEBUG to be defined. 5636 5637 Added platform-nullos.cc to serve as the basis for new platform 5638 implementations. 5639 5640 5641 2008-07-30: Version 0.2.0 5642 5643 Changed all text files to have native svn:eol-style. 5644 5645 Added a few samples and support for building them. The samples 5646 include a simple shell that can be used to benchmark and test V8. 5647 5648 Changed V8::GetVersion to return the version as a string. 5649 5650 Added source for lazily loaded scripts to snapshots and made 5651 serialization non-destructive. 5652 5653 Improved ARM support by fixing the write barrier code to use 5654 aligned loads and stores and by removing premature locals 5655 optimization that relied on broken support for callee-saved 5656 registers (removed). 5657 5658 Refactored the code for marking live objects during garbage 5659 collection and the code for allocating objects in paged 5660 spaces. Introduced an abstraction for the map word of a heap- 5661 allocated object and changed the memory allocator to allocate 5662 executable memory only for spaces that may contain code objects. 5663 5664 Moved StringBuilder to utils.h and ScopedLock to platform.h, where 5665 they can be used by debugging and logging modules. Added 5666 thread-safe message queues for dealing with debugger events. 5667 5668 Fixed the source code reported by toString for certain builtin 5669 empty functions and made sure that the prototype property of a 5670 function is enumerable. 5671 5672 Improved performance of converting values to condition flags in 5673 generated code. 5674 5675 Merged disassembler-{arch} files. 5676 5677 5678 2008-07-28: Version 0.1.4 5679 5680 Added support for storing JavaScript stack traces in a stack 5681 allocated buffer to make it visible in shallow core dumps. 5682 Controlled by the --preallocate-message-memory flag which is 5683 disabled by default. 5684 5685 5686 2008-07-25: Version 0.1.3 5687 5688 Fixed bug in JSObject::GetPropertyAttributePostInterceptor where 5689 map transitions would count as properties. 5690 5691 Allowed aliased eval invocations by treating them as evals in the 5692 global context. This may change in the future. 5693 5694 Added support for accessing the last entered context through the 5695 API and renamed Context::Current to Context::GetCurrent and 5696 Context::GetSecurityContext to Context::GetCurrentSecurityContext. 5697 5698 Fixed bug in the debugger that would cause the debugger scripts to 5699 be recursively loaded and changed all disabling of interrupts to 5700 be block-structured. 5701 5702 Made snapshot data read-only to allow it to be more easily shared 5703 across multiple users of V8 when linked as a shared library. 5704 5705 5706 2008-07-16: Version 0.1.2 5707 5708 Fixed building on Mac OS X by recognizing i386 and friends as 5709 IA-32 platforms. 5710 5711 Added propagation of stack overflow exceptions that occur while 5712 compiling nested functions. 5713 5714 Improved debugger with support for recursive break points and 5715 handling of exceptions that occur in the debugger JavaScript code. 5716 5717 Renamed GetInternal to GetInternalField and SetInternal to 5718 SetInternalField in the API and moved InternalFieldCount and 5719 SetInternalFieldCount from FunctionTemplate to ObjectTemplate. 5720 5721 5722 2008-07-09: Version 0.1.1 5723 5724 Fixed bug in stack overflow check code for IA-32 targets where a 5725 non-tagged value in register eax was pushed to the stack. 5726 5727 Fixed potential quadratic behavior when converting strings to 5728 numbers. 5729 5730 Fixed bug where the return value from Object::SetProperty could 5731 end up being the property holder instead of the written value. 5732 5733 Improved debugger support by allowing nested break points and by 5734 dealing with stack-overflows when compiling functions before 5735 setting break points in them. 5736 5737 5738 2008-07-03: Version 0.1.0 5739 5740 Initial export. 5741 5742 # Local Variables: 5743 # mode:text 5744 # End: 5745
