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2018-06-17: Version 4.0.1
* Fix parsing async get/set in a class (issue 1861, 1875)
* Account for different return statement argument (issue 1829, 1897, 1928)
* Correct the handling of HTML comment when parsing a module (issue 1841)
* Fix incorrect parse async with proto-identifier-shorthand (issue 1847)
* Fix negative column in binary expression (issue 1844)
* Fix incorrect YieldExpression in object methods (issue 1834)
* Various documentation fixes
2017-06-10: Version 4.0.0
* Support ES2017 async function and await expression (issue 1079)
* Support ES2017 trailing commas in function parameters (issue 1550)
* Explicitly distinguish parsing a module vs a script (issue 1576)
* Fix JSX non-empty container (issue 1786)
* Allow JSX element in a yield expression (issue 1765)
* Allow `in` expression in a concise body with a function body (issue 1793)
* Setter function argument must not be a rest parameter (issue 1693)
* Limit strict mode directive to functions with a simple parameter list (issue 1677)
* Prohibit any escape sequence in a reserved word (issue 1612)
* Only permit hex digits in hex escape sequence (issue 1619)
* Prohibit labelled class/generator/function declaration (issue 1484)
* Limit function declaration as if statement clause only in non-strict mode (issue 1657)
* Tolerate missing ) in a with and do-while statement (issue 1481)
2016-12-22: Version 3.1.3
* Support binding patterns as rest element (issue 1681)
* Account for different possible arguments of a yield expression (issue 1469)
2016-11-24: Version 3.1.2
* Ensure that import specifier is more restrictive (issue 1615)
* Fix duplicated JSX tokens (issue 1613)
* Scan template literal in a JSX expression container (issue 1622)
* Improve XHTML entity scanning in JSX (issue 1629)
2016-10-31: Version 3.1.1
* Fix assignment expression problem in an export declaration (issue 1596)
* Fix incorrect tokenization of hex digits (issue 1605)
2016-10-09: Version 3.1.0
* Do not implicitly collect comments when comment attachment is specified (issue 1553)
* Fix incorrect handling of duplicated proto shorthand fields (issue 1485)
* Prohibit initialization in some variants of for statements (issue 1309, 1561)
* Fix incorrect parsing of export specifier (issue 1578)
* Fix ESTree compatibility for assignment pattern (issue 1575)
2016-09-03: Version 3.0.0
* Support ES2016 exponentiation expression (issue 1490)
* Support JSX syntax (issue 1467)
* Use the latest Unicode 8.0 (issue 1475)
* Add the support for syntax node delegate (issue 1435)
* Fix ESTree compatibility on meta property (issue 1338)
* Fix ESTree compatibility on default parameter value (issue 1081)
* Fix ESTree compatibility on try handler (issue 1030)
2016-08-23: Version 2.7.3
* Fix tokenizer confusion with a comment (issue 1493, 1516)
2016-02-02: Version 2.7.2
* Fix out-of-bound error location in an invalid string literal (issue 1457)
* Fix shorthand object destructuring defaults in variable declarations (issue 1459)
2015-12-10: Version 2.7.1
* Do not allow trailing comma in a variable declaration (issue 1360)
* Fix assignment to `let` in non-strict mode (issue 1376)
* Fix missing delegate property in YieldExpression (issue 1407)
2015-10-22: Version 2.7.0
* Fix the handling of semicolon in a break statement (issue 1044)
* Run the test suite with major web browsers (issue 1259, 1317)
* Allow `let` as an identifier in non-strict mode (issue 1289)
* Attach orphaned comments as `innerComments` (issue 1328)
* Add the support for token delegator (issue 1332)
2015-09-01: Version 2.6.0
* Properly allow or prohibit `let` in a binding identifier/pattern (issue 1048, 1098)
* Add sourceType field for Program node (issue 1159)
* Ensure that strict mode reserved word binding throw an error (issue 1171)
* Run the test suite with Node.js and IE 11 on Windows (issue 1294)
* Allow binding pattern with no initializer in a for statement (issue 1301)
2015-07-31: Version 2.5.0
* Run the test suite in a browser environment (issue 1004)
* Ensure a comma between imported default binding and named imports (issue 1046)
* Distinguish `yield` as a keyword vs an identifier (issue 1186)
* Support ES6 meta property `new.target` (issue 1203)
* Fix the syntax node for yield with expression (issue 1223)
* Fix the check of duplicated proto in property names (issue 1225)
* Fix ES6 Unicode escape in identifier name (issue 1229)
* Support ES6 IdentifierStart and IdentifierPart (issue 1232)
* Treat await as a reserved word when parsing as a module (issue 1234)
* Recognize identifier characters from Unicode SMP (issue 1244)
* Ensure that export and import can be followed by a comma (issue 1250)
* Fix yield operator precedence (issue 1262)
2015-07-01: Version 2.4.1
* Fix some cases of comment attachment (issue 1071, 1175)
* Fix the handling of destructuring in function arguments (issue 1193)
* Fix invalid ranges in assignment expression (issue 1201)
2015-06-26: Version 2.4.0
* Support ES6 for-of iteration (issue 1047)
* Support ES6 spread arguments (issue 1169)
* Minimize npm payload (issue 1191)
2015-06-16: Version 2.3.0
* Support ES6 generator (issue 1033)
* Improve parsing of regular expressions with `u` flag (issue 1179)
2015-04-17: Version 2.2.0
* Support ES6 import and export declarations (issue 1000)
* Fix line terminator before arrow not recognized as error (issue 1009)
* Support ES6 destructuring (issue 1045)
* Support ES6 template literal (issue 1074)
* Fix the handling of invalid/incomplete string escape sequences (issue 1106)
* Fix ES3 static member access restriction (issue 1120)
* Support for `super` in ES6 class (issue 1147)
2015-03-09: Version 2.1.0
* Support ES6 class (issue 1001)
* Support ES6 rest parameter (issue 1011)
* Expand the location of property getter, setter, and methods (issue 1029)
* Enable TryStatement transition to a single handler (issue 1031)
* Support ES6 computed property name (issue 1037)
* Tolerate unclosed block comment (issue 1041)
* Support ES6 lexical declaration (issue 1065)
2015-02-06: Version 2.0.0
* Support ES6 arrow function (issue 517)
* Support ES6 Unicode code point escape (issue 521)
* Improve the speed and accuracy of comment attachment (issue 522)
* Support ES6 default parameter (issue 519)
* Support ES6 regular expression flags (issue 557)
* Fix scanning of implicit octal literals (issue 565)
* Fix the handling of automatic semicolon insertion (issue 574)
* Support ES6 method definition (issue 620)
* Support ES6 octal integer literal (issue 621)
* Support ES6 binary integer literal (issue 622)
* Support ES6 object literal property value shorthand (issue 624)
2015-03-03: Version 1.2.5
* Fix scanning of implicit octal literals (issue 565)
2015-02-05: Version 1.2.4
* Fix parsing of LeftHandSideExpression in ForInStatement (issue 560)
* Fix the handling of automatic semicolon insertion (issue 574)
2015-01-18: Version 1.2.3
* Fix division by this (issue 616)
2014-05-18: Version 1.2.2
* Fix duplicated tokens when collecting comments (issue 537)
2014-05-04: Version 1.2.1
* Ensure that Program node may still have leading comments (issue 536)
2014-04-29: Version 1.2.0
* Fix semicolon handling for expression statement (issue 462, 533)
* Disallow escaped characters in regular expression flags (issue 503)
* Performance improvement for location tracking (issue 520)
* Improve the speed of comment attachment (issue 522)
2014-03-26: Version 1.1.1
* Fix token handling of forward slash after an array literal (issue 512)
2014-03-23: Version 1.1.0
* Optionally attach comments to the owning syntax nodes (issue 197)
* Simplify binary parsing with stack-based shift reduce (issue 352)
* Always include the raw source of literals (issue 376)
* Add optional input source information (issue 386)
* Tokenizer API for pure lexical scanning (issue 398)
* Improve the web site and its online demos (issue 337, 400, 404)
* Performance improvement for location tracking (issue 417, 424)
* Support HTML comment syntax (issue 451)
* Drop support for legacy browsers (issue 474)
2013-08-27: Version 1.0.4
* Minimize the payload for packages (issue 362)
* Fix missing cases on an empty switch statement (issue 436)
* Support escaped ] in regexp literal character classes (issue 442)
* Tolerate invalid left-hand side expression (issue 130)
2013-05-17: Version 1.0.3
* Variable declaration needs at least one declarator (issue 391)
* Fix benchmark's variance unit conversion (issue 397)
* IE < 9: \v should be treated as vertical tab (issue 405)
* Unary expressions should always have prefix: true (issue 418)
* Catch clause should only accept an identifier (issue 423)
* Tolerate setters without parameter (issue 426)
2012-11-02: Version 1.0.2
Improvement:
* Fix esvalidate JUnit output upon a syntax error (issue 374)
2012-10-28: Version 1.0.1
Improvements:
* esvalidate understands shebang in a Unix shell script (issue 361)
* esvalidate treats fatal parsing failure as an error (issue 361)
* Reduce Node.js package via .npmignore (issue 362)
2012-10-22: Version 1.0.0
Initial release.
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