oxc/crates/oxc_ecmascript/CHANGELOG.md

Changelog

All notable changes to this package will be documented in this file.

The format is based on Keep a Changelog.

[0.157.0] - 2026-11-02

🐛 Bug Fixes

• eaa8e90 ecmascript: Avoid numeric + folding when an operand may be a string (#28544) (camc314)

⚡ Performance

• 444f24a ecmascript: Short-circuit simple parameter checks for rest (#28503) (Boshen)
• 8239dac parser: Replace dragonbox_ecma with zmij_ecma (#28282) (Boshen)

[0.156.0] - 2026-10-27

💥 BREAKING CHANGES

• cf8296f ecmascript: [BREAKING] Fold surrogate strings with JSStr constants (#27098) (Dunqing)

🐛 Bug Fixes

• bd70a9b ecmascript: Use ECMAScript whitespace when folding parseFloat/parseInt/trim (#27719) (Dunqing)

⚡ Performance

• 3493ce3 minifier: Reuse is_error_constructor and simplify substitute_global_new_expression (#28149) (Armano)

[0.155.0] - 2026-10-19

💥 BREAKING CHANGES

• a0a987c ast: [BREAKING] Preserve lone surrogates in static member names (#26677) (Dunqing)

🐛 Bug Fixes

• bd37e78 ecmascript: Look through sequence expressions in to_primitive (#27837) (baltasarblanco)
• 863b359 ecmascript: Correct parseFloat decimal prefix scanning (#27695) (camc314)
• 3543672 ecmascript: Do not fold Number.isInteger / isSafeInteger of tiny non-integers to true (#27622) (Baltasar Blanco)
• 6987a61 ecmascript: BigInt loose equality folding (unknown operands and StringToBigInt) (#27656) (Baltasar Blanco)
• 022306f ecmascript: Do not fold Math.cbrt of a negative number to NaN (#27621) (Baltasar Blanco)

⚡ Performance

• 88b5c35 minifier: Reduce code branches when evaluating roots (#27906) (Armano)

[0.154.0] - 2026-10-13

⚡ Performance

• 19c227d minifier: Use ident when checking specific id names (#27208) (Armano)

[0.150.0] - 2026-09-14

🚀 Features

• ca649e0 ecma: Define math constants as known globals and resolve their types (#26585) (Armano)

⚡ Performance

• 53f006e ecmascript: Format small integer literals with itoa (#26446) (camc314)

[0.149.0] - 2026-09-07

🐛 Bug Fixes

• 853ffab ecmascript: Avoid charAt panic on 32-bit (#26244) (camc314)

[0.148.0] - 2026-08-31

🐛 Bug Fixes

• b874f48 ecmascript: Math.round only exact half ties (#26150) (camc314)
• a625378 minifier: Coerce omitted indexOf search argument (#26149) (camc314)
• dc7398b ecmascript: Trim trailing whitespace in string to number (#26148) (camc314)

[0.145.0] - 2026-08-18

🐛 Bug Fixes

• f6000ac ecmascript: Fold ** with Number::exponentiate, not IEEE pow (#25644) (Kotaro Chikuba)
• e82495b ecmascript: Derive ToNumber of !x from ToBoolean (#25595) (Kotaro Chikuba)
• 88b34f2 clippy: Remove unneeded unsafe (#25551) (camc314)

⚡ Performance

• 568203e ecmascript: Use binary search for known globals (#25817) (Boshen)

[0.144.0] - 2026-08-10

💥 BREAKING CHANGES

• a33788e ast: [BREAKING] Group class heritage into ClassHeritage (#25360) (camc314)
• 44fd320 ast: [BREAKING] Split TS external modules & Namespace Declarations (#25284) (camc314)

[0.143.0] - 2026-08-03

💥 BREAKING CHANGES

• 1bdedd1 ast: [BREAKING] Introduce ExportDeclaration, ExportFromDeclaration (#25095) (camc314)
• c917f20 ast: [BREAKING] Introduce ArrowFunctionBody enum (#24987) (camc314)

🚀 Features

• 5acdae2 ecmascript: Skip transparent TS expressions (#25072) (camc314)

🐛 Bug Fixes

• 8a47ff3 ecmascript: Do not treat lone-surrogate strings as constants (#25084) (Dunqing)
• fbe8d31 minifier: Respect targets when folding RegExp source (#24790) (Dunqing)

[0.142.0] - 2026-07-27

🐛 Bug Fixes

• 07e9acc ecmascript: Keep side effects in parent of toString calls (#24846) (sapphi-red)
• 16a40ad ecmascript: Detect side effects in unused arguments to charCodeAt (#24845) (sapphi-red)
• 133bb35 ecmascript: Detect side effects of foo().#bar correctly when PropertyReadSideEffects::None (#24769) (sapphi-red)

⚡ Performance

• a086d91 ecmascript: Avoid number literal allocations (#24889) (Dunqing)

[0.141.0] - 2026-07-20

💥 BREAKING CHANGES

• 54cc121 ast: [BREAKING] Split MetaProperty into ImportMeta and NewTarget (#24557) (camc314)

🐛 Bug Fixes

• e750a82 ecmascript: Fix false negative for may_have_side_effects on dynamic property access (#24709) (sapphi-red)

[0.139.0] - 2026-07-06

🚀 Features

• 60e7160 minifier: Drop side-effect-free IIFEs whose result is unused (#23967) (Dunqing)

🐛 Bug Fixes

• e274415 minifier: Don't drop global calls that throw despite pure arguments (#23917) (Dunqing)

⚡ Performance

• bd49aff ecmascript: Avoid heap-allocating Math.min/max/imul operands (#23941) (Lawrence Lin)

[0.138.0] - 2026-06-29

💥 BREAKING CHANGES

• 8de5122 ecmascript: [BREAKING] Switch to new AstBuilder (#23834) (overlookmotel)

🚀 Features

• f2091b3 ast: Unify old and new AstBuilders (#23875) (overlookmotel)

📚 Documentation

• 3d61dea all: Correct capitalization in comments (#23887) (overlookmotel)

[0.137.0] - 2026-06-18

🚀 Features

• 53509a8 minifier: Treeshake pure typed arrays and Set/Map array literals (#23469) (Dunqing)

🐛 Bug Fixes

• 31bfd9b minifier: Keep Object introspection calls on a possible Proxy (#23483) (Dunqing)

[0.132.0] - 2026-05-18

🐛 Bug Fixes

• 0f26de6 ecmascript: Resolve identifier value type via tracked constants (#22234) (Alexander Lichter)

[0.126.0] - 2026-04-15

🐛 Bug Fixes

• d7a359a ecmascript: Treat update expressions as unconditionally side-effectful (#21456) (Dunqing)

[0.125.0] - 2026-04-13

🐛 Bug Fixes

• 2338e28 ecmascript: Treat this as potentially having side effects (#21297) (sapphi-red)

[0.121.0] - 2026-03-19

🐛 Bug Fixes

• 4ae3f3f ecmascript: Apply coercion-is-pure assumption to constructor side-effect detection (#20420) (Dunqing)
• efeba28 ecmascript: Add argument validation for NewExpression side-effect detection (#20395) (Dunqing)

[0.120.0] - 2026-03-16

🐛 Bug Fixes

• edb8677 ecmascript: Treat collection constructor with variable arg as side-effectful (#20383) (Dunqing)
• e62524d minifier: Treat object spread of getters as having side effects (#20380) (Boshen)

[0.119.0] - 2026-03-14

🚀 Features

• e7163b6 ecmascript: Add known-globals to side-effect-free property reads (#20212) (Dunqing)
• 139ab68 ecmascript: Add property_write_side_effects to MayHaveSideEffectsContext (#20217) (Dunqing)

🐛 Bug Fixes

• 5c97b14 minifier: Recognize object spread of object literals as side-effect-free (#20299) (Boshen)
• ade14d4 ecmascript: Enhance side-effect detection for classes, TypedArrays, computed members, and spread (#20213) (Dunqing)

[0.116.0] - 2026-03-02

🐛 Bug Fixes

• a35063e minifier: Preserve side effects for meta property url reads (#19668) (Boshen)

[0.113.0] - 2026-02-10

🐛 Bug Fixes

• 110c300 oxc_ecmascript: +[false] and +[true] should evaluate to NaN (#19174) (copilot-swe-agent)

[0.109.0] - 2026-01-19

🐛 Bug Fixes

• 38e4b53 minifier: Validate RegExp patterns before marking as pure (#18125) (Boshen)

[0.107.0] - 2026-01-05

🐛 Bug Fixes

• 1044116 ecmascript: Mark new Symbol as non side-effect free (#17568) (camc314)

[0.102.0] - 2025-12-08

🚀 Features

• c90f053 minfier: Support . separated values for compress.treeshake.manualPureFunctions (#16529) (sapphi-red)

[0.99.0] - 2025-11-24

💥 BREAKING CHANGES

• cbb27fd ast: [BREAKING] Add TSGlobalDeclaration type (#15712) (overlookmotel)

[0.97.0] - 2025-11-11

🐛 Bug Fixes

• 8b14ec9 minifier: Handle { __proto__: null } instanceof Object correctly (#15217) (sapphi-red)

[0.91.0] - 2025-09-22

💼 Other

• fb347da crates: V0.91.0 (#13961) (Boshen)

[0.86.0] - 2025-08-31

🚀 Features

• f97283b ecmascript: Support more cases for IsLiteralValue with include_functions (#13425) (sapphi-red)

[0.84.0] - 2025-08-30

🚀 Features

• 95d4311 ecmascript: Check side effects inside static blocks (#13404) (sapphi-red)
• c557854 ecmascript: Support MayHaveSideEffects for Statements (#13402) (sapphi-red)

[0.83.0] - 2025-08-29

💥 BREAKING CHANGES

• e459866 ecmascript: [BREAKING] Remove PropertyReadSideEffects::OnlyMemberPropertyAccess (#13348) (sapphi-red)

🚀 Features

• ac2067b ecmascript: Examine and improve is_literal_value (#13363) (sapphi-red)
• 8e34656 ecmascript: Implement MayHaveSideEffects for AssignmentTarget (#13279) (sapphi-red)
• a1b6ad4 minifier: Implement known methods Math.clz32 and Math.imul (#12405) (Ethan Wu)

🐛 Bug Fixes

• 5d898e8 ecmascript: Treat shadowed global calls correctly (#13292) (sapphi-red)

🚜 Refactor

• 66a5673 ecmascript: Add ToUint32 trait (#13272) (sapphi-red)

[0.82.3] - 2025-08-20

🐛 Bug Fixes

• d27a04b ecmascript: Skip array length evaluation if there are any spread elements (#13162) (Monad)

[0.82.2] - 2025-08-17

🚀 Features

• fbe6663 minifier: Mark more known global methods as side-effect free (#13086) (Boshen)
• 36386e4 ecmascript: Treat [...arguments] as side effect free (#13116) (sapphi-red)
• fe4589b minifier: Mark more global constructors as side-effect free (#13082) (Boshen)

🚜 Refactor

• e190ee5 minifier: Clean up remove_unused_expression (#13080) (Boshen)

[0.82.1] - 2025-08-13

📚 Documentation

• 9c05e2f ecmascript: Correct docs for GlobalContext::is_global_reference (#13022) (overlookmotel)

[0.82.0] - 2025-08-12

🚀 Features

• 54d1750 ecmascript: Handle typeof guarded global access as side effect free (#12981) (Copilot)
• 33c0e9f ecmascript: Add global isNaN, isFinite, parseFloat, parseInt functions support to constant evaluation (#12954) (Copilot)
• 208e6f7 ecmascript: Add URI encoding/decoding support to constant evaluation (#12934) (Copilot)
• 53f7a9f minifier: new Date() has ValueType::Object (#12951) (Boshen)
• 784796d minifier: Fold (!0).toString() to true (#12938) (Boshen)
• bc1d716 ecmascript: Add ARM64 FJCVTZS instruction optimization for ToInt32 with function-specific target features and runtime detection (#12823) (copilot-swe-agent)

🐛 Bug Fixes

• c72f49e ecmascript: Fix merge error (Boshen)

🚜 Refactor

• 8a5c9b9 minifier,ecmascript: Clean up is_global_reference (#12953) (Boshen)
• 0c5bffc ecmascript: Change IsGlobalReference to GlobalContext (#12952) (Boshen)
• c072e01 all: Add missing lifetimes in function return types (#12895) (overlookmotel)

📚 Documentation

• 3ce27e9 ecmascript, minifier: Revert changes to changelogs (#12962) (overlookmotel)

[0.81.0] - 2025-08-06

🚜 Refactor

• f3f6012 ecmascript: Avoid redundant checks by splitting up match arms (#12782) (Ulrich Stark)

[0.80.0] - 2025-08-03

🚜 Refactor

• 5f50bc3 minifier: Move string method constant evaluation from minifier to ecmascript crate (#12672) (Copilot)

📚 Documentation

• 45e2fe8 rust: Fix typos and grammar mistakes in Rust documentation comments (#12715) (Copilot)

[0.79.1] - 2025-07-31

🚀 Features

• 763a618 minifier: Inline small constant values (#12639) (Boshen)

[0.79.0] - 2025-07-30

🚀 Features

• b877039 minifier: Inline const variables that are only used once (#12488) (Boshen)

🐛 Bug Fixes

• fe9c8e1 minifier: Do not remove non-plain empty functions (#12573) (Boshen)

[0.77.1] - 2025-07-16

🚜 Refactor

• c68b607 ast: Rename TemplateLiteral::quasi to TemplateLiteral::single_quasi (#12266) (Dunqing)
• 32c32af ast: Check whether there is a single quasi in TemplateLiteral::quasi (#12265) (Dunqing)

[0.77.0] - 2025-07-12

🚜 Refactor

• d5c94a8 ecmascript: Move is_less_than to its own file (#12189) (Boshen)

[0.74.0] - 2025-06-23

💥 BREAKING CHANGES

• 7a05e71 minifier: [BREAKING] Add Treeshake options (#11786) (Boshen)

🚀 Features

• d462ead minifier: Remove dead code that evaluates to a constant value (#11788) (Boshen)

🚜 Refactor

• 5a46641 ecmascript: Move get_constant_value_for_reference_id to IsGlobalReference trait (#11810) (Boshen)

[0.73.0] - 2025-06-13

💥 BREAKING CHANGES

• f3eaefb ast: [BREAKING] Add value field to BigIntLiteral (#11564) (overlookmotel)

🚀 Features

• 40ac186 minifier: Annotate more pure constructors (#11555) (Boshen)

⚡ Performance

• 365d8e5 ecmascript: Faster parsing integers (#11565) (overlookmotel)

Changelog

All notable changes to this package will be documented in this file.

The format is based on Keep a Changelog, and this project does not adhere to Semantic Versioning until v1.0.0.

[0.69.0] - 2025-05-09

Refactor

• 7c6ac7c ecmascript: Remove outdated todo comment (#10909) (Ulrich Stark)

[0.62.0] - 2025-04-01

• 4077868 ecmascript: [BREAKING] Introduce MayHaveSideEffectsContext (#10126) (sapphi-red)

Features

• 11ddda6 ecmascript: Add unknown_global_side_effects to MayHaveSideEffectsContext (#10130) (sapphi-red)
• ef3451c ecmascript: Add property_read_side_effects to MayHaveSideEffectsContext (#10129) (sapphi-red)
• ac2ecbb ecmascript: Add is_pure_call to MayHaveSideEffectsContext (#10128) (sapphi-red)
• e004a3f ecmascript: Add respect_annotations to MayHaveSideEffectsContext (#10127) (sapphi-red)

Refactor

[0.57.0] - 2025-03-11

Features

• b6deff8 ecmascript: Support integer index access for array and string in may_have_side_effects (#9603) (sapphi-red)

Bug Fixes

• 96eef8b ecmascript: (foo() + "").length may have a side effect (#9605) (sapphi-red)

[0.56.4] - 2025-03-07

Refactor

• 62bffed rust: Allow a few annoying clippy rules (#9588) (Boshen)

[0.54.0] - 2025-03-04

Features

• 64f4a82 ecmascript: Handle pure call expression in chain expressions (#9480) (sapphi-red)
• 32139d2 ecmascript: Support /* @__PURE__ */ in may_have_side_effects (#9409) (sapphi-red)

Bug Fixes

• f5bbd5d ecmascript: Fix toString for negative numbers (#9508) (sapphi-red)
• d2cd975 ecmascript: Fix may_have_side_effects for ${a() === b} (#9478) (sapphi-red)
• 584d847 ecmascript: Objects passed to template literals may have side effects (#9425) (sapphi-red)

Testing

• c187b11 ecmascript: Add comments and tests for cases where ToPropertyKey throws an error (#9429) (sapphi-red)

[0.53.0] - 2025-02-26

Features

• e10fb97 ecmascript: Improve may_have_side_effects for .length (#9366) (sapphi-red)
• 35e5ca9 ecmascript: Improve may_have_side_effects for instanceof (#9365) (sapphi-red)
• 11012c6 ecmascript: Improve ValueType for coalesce operator (#9354) (sapphi-red)
• b7998fd ecmascript: To_number for object without toString (#9353) (sapphi-red)
• e51d563 minifier: Concatenate strings with template literals on right side (#9356) (sapphi-red)

Bug Fixes

• f5c8698 ecmascript: Correct may_have_side_effects for classes (#9367) (sapphi-red)
• d3ed128 minifier: Do not remove === 0 if the lhs can be NaN (#9352) (sapphi-red)

Refactor

• faf966f ecmascript: Don't check side effects in constant_evaluation (#9122) (sapphi-red)

[0.52.0] - 2025-02-21

Documentation

• 3414824 oxc: Enable clippy::too_long_first_doc_paragraph (#9237) (Boshen)

Refactor

• 9f36181 rust: Apply cllippy::nursery rules (#9232) (Boshen)

[0.51.0] - 2025-02-15

Features

• 36c8640 ecmascript: Support more string concatenation (#9121) (sapphi-red)
• 6936b08 ecmascript: Fold typeof with ValueType information (#9086) (sapphi-red)
• 125d610 minifier: Fold String::charAt / String::charCodeAt more precisely (#9082) (sapphi-red)
• 237ffba minifier: Fold bitwise binary expressions with negative BigInts (#9081) (sapphi-red)

Bug Fixes

• eb7cd62 ecmascript: To_number for shadowed undefined (#9106) (sapphi-red)
• 8cbdf00 ecmascript: To_boolean for shadowed undefined (#9105) (sapphi-red)
• 17c745c ecmascript: To_string for object with toString (#9104) (sapphi-red)
• cfc71f9 ecmascript: To_string for shadowed undefined (#9103) (sapphi-red)
• 2ab2a8f ecmascript: Handle shadowed global variables in ValueType (#9085) (sapphi-red)

Refactor

• 8bd6eef ecmascript: Merge constant evaluation logics (#9120) (sapphi-red)
• b164072 ecmascript: Extract to_numeric (#9111) (sapphi-red)
• fc53cdd ecmascript: Generalize ToPrimitive (#9109) (sapphi-red)
• d951390 ecmascript: Use value_type in to_primitive (#9108) (sapphi-red)
• 8f79012 ecmascript: Pass IsGlobalReference to DetermineValueType instead of extending it (#9107) (sapphi-red)
• db1744c ecmascript: Remove "constant_evaluation" / "side_effects" features (#9114) (sapphi-red)
• 329de94 ecmascript: Extract ToPrimitive (#9102) (sapphi-red)
• d670ec7 ecmascript: Pass IsGlobalReference to MayHaveSideEffects instead of extending it (#9101) (sapphi-red)
• f4e2d4e ecmascript: Allow IsGlobalReference to return None (#9100) (sapphi-red)

[0.49.0] - 2025-02-10

Features

• ad1a878 ecmascript: Support BigInt comparison (#9014) (sapphi-red)
• d515cfd ecmascript: Detect objects without overridden toString/valueOf/Symbol.toPrimitive (#8993) (sapphi-red)
• 2a10a99 ecmascript: Support arrays and objects for unary expression may_have_side_effects (#8990) (sapphi-red)
• dd383c0 ecmascript: ValueType::from for PrivateInExpression (#8964) (sapphi-red)
• c3eef2f ecmascript: ValueType::from for parenthesized expressions (#8962) (sapphi-red)
• 2c3a46d ecmascript: Support more simple expressions by ValueType::from (#8961) (sapphi-red)
• 4cec83f ecmascript: ValueType::from for bitwise not operator (#8955) (sapphi-red)
• e3e9999 ecmascript: Complete may_have_side_effects (#8855) (sapphi-red)
• ca4831b minifier: Fold typeof class {} to 'function' (#8949) (sapphi-red)
• 9ffe9e9 minifier: Fold typeof (() => {}) to 'function' (#8948) (sapphi-red)
• 36007de minifier: Fold typeof { foo } when foo is declared (#8947) (sapphi-red)
• 56575b2 minifier: Fold complicated array literals passed to unary + (#8944) (sapphi-red)
• 14462be minifier: Fold simple literals passed to unary + (#8943) (sapphi-red)
• d6d13dd minifier: Minimize !!(boolean_expr) -> boolean_expr (#8849) (Boshen)

Bug Fixes

• 9a5a926 ecmascript: Fix may_have_side_effects for binary expressions (#8991) (sapphi-red)
• 660c314 ecmascript: Fix may_have_side_effects for unary expressions (#8989) (sapphi-red)
• 8ab7204 ecmascript: Fix ValueType::from for AssignmentExpression (#8959) (sapphi-red)
• aeb122d ecmascript: Fix ValueType::from for numeric binary operators (#8956) (sapphi-red)
• 1182c20 ecmascript: ValueType::from for unknown value should return Undetermined instead of Number (#8954) (sapphi-red)
• b5a7785 minifier: Fix comparison of strings with unicode characters (#8942) (sapphi-red)

Refactor

• 9b5d800 minifier: Move equality comparison to ConstantEvaluation (#9009) (sapphi-red)

Styling

• a4a8e7d all: Replace #[allow] with #[expect] (#8930) (overlookmotel)

Testing

• cc7bb9c ecmascript: Add test for ValueType and update document (#8951) (sapphi-red)

[0.48.2] - 2025-02-02

Bug Fixes

• ae7f670 minifier: Avoid minifying +void unknown to NaN and fix typo (#8784) (7086cmd)

[0.48.1] - 2025-01-26

Refactor

• 58002e2 ecmascript: Remove the lifetime annotation on MayHaveSideEffects (#8717) (Boshen)
• 0af0267 minifier: Side effect detection needs symbols resolution (#8715) (Boshen)

Testing

• 03229c5 minifier: Fix broken tests (#8722) (Boshen)

[0.48.0] - 2025-01-24

Bug Fixes

• 4ff6e85 minifier: Remove expression statement void 0 (#8602) (Boshen)

Performance

• 9953ac7 minifier: Add LatePeepholeOptimizations (#8651) (Boshen)

[0.47.1] - 2025-01-19

Bug Fixes

• 7b219a9 minifier: Fix dce shadowed undefined (#8582) (Boshen)

[0.47.0] - 2025-01-18

Features

• 927f43f minifier: Improve .charCodeAt(arg) when arg is valid (#8534) (Boshen)

Bug Fixes

• b1d0186 minifier: Do not fold !!void b (#8533) (Boshen)

Refactor

• 8f57929 minifier: Merge try_compress_type_of_equal_string into try_minimize_binary (#8561) (sapphi-red)

[0.46.0] - 2025-01-14

Bug Fixes

• 1d6e84d minifier: Fix incorrect null.toString() and 1n.toString() (#8464) (Boshen)

[0.45.0] - 2025-01-11

Features

• 438a6e7 minifier: Minimize conditions in boolean context (#8381) (Boshen)
• e88a6bd minifier: Minimize !0 + null !== 1 -> !0 + null != 1 (#8332) (Boshen)
• 922c514 minifier: Fold .toString() (#8308) (Boshen)
• 66a2443 minifier: Minify sequence expressions (#8305) (camc314)
• f000596 minifier: Minify call expressionsto Number (#8267) (camc314)
• cec63e2 minifier: {} evals to f64::NaN (Boshen)
• 4d8a08d minifier: Improve constant evaluation (#8252) (Boshen)
• bd8d677 minifier: Minimize ~undefined, ~null, ~true, ~false (#8247) (Boshen)
• f73dc9e minifier: Constant fold 'x'.toString() and true.toString() (#8246) (Boshen)
• fc43ec5 minifier: Fold string.length / array.length (#8172) (sapphi-red)
• 6615e1e minifier: Constant fold instanceof (#8142) (翠 / green)
• ad9a0a9 mininifier: Minimize variants of a instanceof b == true (#8241) (Boshen)

Bug Fixes

• 74572de ecmascript: Incorrect to_int_32 value for Infinity (#8144) (翠 / green)
• 0efc845 minifier: +0n produces TypeError (#8410) (Boshen)
• 7ce6a7c minifier: a in b has error throwing side effect (#8406) (Boshen)
• c0a3dda minifier: instanceof has error throwing side effect (#8378) (Boshen)
• 5516f7f minifier: Do not fold object comparisons (#8375) (Boshen)
• 05be1fc minifier: Remove incorrect fold Expression::AssignmentExpression (#8211) (Boshen)
• 56b7f13 minifier: Do not constant fold 0 instanceof F (#8199) (Boshen)

Refactor

• 1835687 ecmascript: Remove unnecessary use statement (#8284) (overlookmotel)
• 9a5c66a minifier: Clean up (#8346) (Boshen)

[0.44.0] - 2024-12-25

Features

• 5397fe9 minifier: Constant fold undefined?.bar -> undefined (#8075) (Boshen)

[0.42.0] - 2024-12-18

Features

• 075bd16 minifier: Fold bitwise operation (#7908) (翠 / green)

Bug Fixes

• 4799471 minfier: Bigint bitwise operation only works with bigint (#7937) (Boshen)

Refactor

• 3858221 global: Sort imports (#7883) (overlookmotel)

Styling

• 7fb9d47 rust: cargo +nightly fmt (#7877) (Boshen)

[0.39.0] - 2024-12-04

• b0e1c03 ast: [BREAKING] Add StringLiteral::raw field (#7393) (Boshen)

Features

• 24189f2 ecma: Implement array join method (#6936) (7086cmd)

Testing

• 9d6e14b ecmascript: Move tests to oxc_minifier due to cyclic dependency with oxc_parser (#7542) (Boshen)

[0.35.0] - 2024-11-04

Bug Fixes

• da199c7 ecmascript: Allow getting PropName for object methods (#6967) (camchenry)

[0.34.0] - 2024-10-26

Features

• 4429754 ecmascript: Constant eval null to number (#6879) (Boshen)
• fd57e00 ecmascript: Add abstract_relational_comparison to dce (#6846) (Boshen)
• 8bcaf59 minifier: Late peeophole optimization (#6882) (Boshen)
• fccf82e minifier: Implement folding substring string fns (#6869) (camc314)
• e6a5a1b minifier: Implement folding charCodeAt string fns (#6475) (camc314)

Bug Fixes

• a47c70e minifier: Fix remaining runtime bugs (#6855) (Boshen)
• 686727f minifier: Reference read has side effect (#6851) (Boshen)

Refactor

• 423d54c rust: Remove the annoying clippy::wildcard_imports (#6860) (Boshen)

[0.33.0] - 2024-10-24

Refactor

• 8b25131 minifier: Binary operations use ConstantEvaluation (#6700) (Boshen)

[0.32.0] - 2024-10-19

Features

• 15c04e5 ecmascript: Add feature flag for constant evaluation (Boshen)
• d11770d ecmascript: Add StringToNumber (#6576) (Boshen)
• e561880 ecmascript: Add constant_evaluation and side_effects code (#6550) (Boshen)
• 3556062 ecmascript: Add ConstantEvaluation (#6549) (Boshen)
• 39c2e66 ecmascript: Add ToBigInt and StringToBigInt (#6508) (Boshen)
• 6f22538 ecmascript: Add ToBoolean, ToNumber, ToString (#6502) (Boshen)
• 071e564 minifier: Finish implementing folding object expressions (#6586) (camc314)
• 096e590 minifier: Implement folding charAt string fns (#6436) (camc314)

Refactor

• aa6ba24 ecmascript: Improve string to number conversion (#6577) (magic-akari)
• 6d041fb ecmascript: Remove NumberValue (#6519) (Boshen)
• 856cab5 ecmascript: Move ToInt32 from oxc_syntax to oxc_ecmascript (#6471) (Boshen)
• 1ba2a24 ecmascript: Remove HasProto which is not part of the spec (#6470) (Boshen)
• f4cdc56 minifier: Use constant folding unary expression from oxc_ecmascript (#6647) (Boshen)
• bbca743 minifier: Move string methods to oxc_ecmascript (#6472) (Boshen)

[0.31.0] - 2024-10-08

Features

• 9e62396 syntax_operations: Add crate oxc_ecmascript (#6202) (Boshen)