release(crates): v0.88.0

[Boshen]

[0.88.0] - 2025-09-15

💥 BREAKING CHANGES

• e433633 data_structures: [BREAKING] Make NonEmptyStack::is_empty a compile-time error (refactor(data_structures)!: make NonEmptyStack::is_empty a compile-time error #13673) (overlookmotel)
• edc70ea allocator/pool: [BREAKING] Remove disable_fixed_size Cargo feature (refactor(allocator/pool)!: remove disable_fixed_size Cargo feature #13625) (overlookmotel)
• 4577b71 napi/parser: [BREAKING] Change oxc-parser to ESM (feat(napi/parser)!: change oxc-parser to ESM #13432) (Boshen)

🚀 Features

• a49d7cf minifier: Remove typeof guarded global access expressions (feat(minifier): remove typeof guarded global access expressions #13751) (sapphi-red)
• c364ad1 minifier: Support ForStatements for single use variable inlining (feat(minifier): support ForStatements for single use variable inlining #13755) (sapphi-red)
• c868796 minifier: Remove unused variable declarations in dead code (feat(minifier): remove unused variable declarations in dead code #13754) (sapphi-red)
• db33196 parser: Adds typescript rule for empty argument list (feat(parser): adds typescript rule for empty argument list #13730) (Karan Kiri)
• 9a205d1 regex-parser: Parse simple TemplateLiterals (feat(regex-parser): parse simple TemplateLiterals #13265) (Sysix)
• 1a58e99 data_structures: Add is_exhausted method to NonEmptyStack and SparseStack (feat(data_structures): add is_exhausted method to NonEmptyStack and SparseStack #13672) (overlookmotel)
• 2db32eb data_structures: Add boxed_slice! and boxed_array! macros (feat(data_structures): add boxed_slice! and boxed_array! macros #13596) (overlookmotel)

🐛 Bug Fixes

• 3d895cf minifier: Remove unused long array expressions (fix(minifier): remove unused long array expressions #13752) (sapphi-red)
• ab51394 raw_transfer: Disable layout assertions on some 32-bit platforms (fix(raw_transfer): disable layout assertions on some 32-bit platforms #13716) (overlookmotel)
• bb2bcf0 transformer: Improve legacy decorator handling and fix constructor parameter decorators (fix(transformer): improve legacy decorator handling and fix constructor parameter decorators #13632) (Dunqing)
• f9fd65b minifier: Disallow merging assignments to let declarations when TDZ error would be introduced (fix(minifier): disallow merging assignments to let declarations when TDZ error would be introduced #13635) (sapphi-red)
• 9fa551a semantic: Handle edge cases checking super (fix(semantic): handle edge cases checking super #13499) (overlookmotel)
• bf50a02 codegen: Avoid backticks for object property keys in destructuring assignments (fix(codegen): avoid backticks for object property keys in destructuring assignments #13631) (copilot-swe-agent)
• f795d69 parser: Improve diagnostics around modifier checks (fix(parser): improve diagnostics around modifier checks #13526) (Ulrich Stark)
• 198243b semantic: Dont parse @ as jsdoc tags inside quotes (fix(semantic): dont parse @ as jsdoc tags inside quotes #13571) (Gwenn Le Bihan)

🚜 Refactor

• 08cbd39 transformer, estree: Clarify code using is_exhausted stack methods (refactor(transformer, estree): clarify code using is_exhausted stack methods #13674) (overlookmotel)
• b9bef25 allocator/pool: AllocatorPool::new always create standard pool (refactor(allocator/pool): AllocatorPool::new always create standard pool #13624) (overlookmotel)
• a306c6f allocator/pool: Single AllocatorPool implementation (refactor(allocator/pool): single AllocatorPool implementation #13622) (overlookmotel)
• 99dd1a7 allocator/pool: Share AllocatorGuard between pool impls (refactor(allocator/pool): share AllocatorGuard between pool impls #13621) (overlookmotel)
• 0dde7f0 allocator/pool: Move resetting into AllocatorPool::add (refactor(allocator/pool): move resetting into AllocatorPool::add #13620) (overlookmotel)
• a0d7389 allocator/pool: Move AllocatorPool into own directory (refactor(allocator/pool): move AllocatorPool into own directory #13619) (overlookmotel)
• babbaca all: Remove pub from modules with no exports (refactor(all): remove pub from modules with no exports #13618) (overlookmotel)

📚 Documentation

• 5dc82ff semantic: Make doc tests for AstNode::contains_any etc runnable (docs(semantic): make doc tests for AstNode::contains_any etc runnable #13595) (overlookmotel)

⚡ Performance

• 08c05df semantic: Make CFG construction a compile-time feature (perf(semantic): make CFG construction a compile-time feature #13678) (Boshen)
• d4608f1 codegen: Reduce memory usage in SourcemapBuilder (perf(codegen): reduce memory usage in SourcemapBuilder #13679) (overlookmotel)
• 4ded22b codegen: Reduce allocations in SourcemapBuilder (perf(codegen): reduce allocations in SourcemapBuilder #13677) (overlookmotel)
• b35bf30 codegen: Optimize sourcemap builder to reduce allocations (perf(codegen): optimize sourcemap builder to reduce allocations #13670) (Boshen)
• 641b252 codegen: Reduce branches when printing ObjectProperty and BindingProperty (perf(codegen): reduce branches when printing ObjectProperty and BindingProperty #13659) (overlookmotel)

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[github-actions]

Monitor Oxc

suite	result
Isolated Declarations	❌
(compressor)	❌
(mangler)	❌
(whitespace)	❌
(codegen)	❌
(formatter)	❌
(transformer)	❌
(dce)	❌

[Copilot]

Pull Request Overview

This PR releases version 0.88.0 of the Oxc project, updating version numbers across all crates and packages to maintain consistency in the monorepo.

• Version bump from 0.87.0 to 0.88.0 across all components
• Updates changelog files with the latest release notes for the new version
• Maintains synchronized versioning across Rust crates and NPM packages

Reviewed Changes

Copilot reviewed 60 out of 61 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
npm/runtime/package.json	Version bump to 0.88.0 for runtime package
npm/oxc-types/package.json	Version bump to 0.88.0 for types package
napi/transform/package.json	Version bump to 0.88.0 for transform NAPI package
napi/parser/package.json	Version bump to 0.88.0 for parser NAPI package
napi/minify/package.json	Version bump to 0.88.0 for minify NAPI package
Cargo.toml	Updates workspace dependencies to version 0.88.0
Various crate Cargo.toml files	Version bump to 0.88.0 for all Rust crates
Various CHANGELOG.md files	Addition of v0.88.0 changelog entries

---

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #13765 will not alter performance

_{Comparing release/crates-1757904969 (e0ec741) with main (fa7400a)¹}

Summary

✅ 37 untouched

Footnotes

1. No successful run was found on main (b07cf30) during the generation of this report, so fa7400a was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩