release(crates): oxc v0.139.0#24218
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July 6, 2026 10:40
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Merging this PR will not alter performance
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🚀 Features
ReplaceWithon all AST types (feat(ast): implementReplaceWithon all AST types #24013) (overlookmotel)ReplaceWithtrait (feat(allocator): addReplaceWithtrait #24012) (overlookmotel)reservedoption for names that must not be mangled (feat(mangler): addreservedoption for names that must not be mangled #24041) (Dunqing)StringExttrait (feat(data_structures): addStringExttrait #24006) (overlookmotel)🐛 Bug Fixes
delete obj.propto Property/ComputedDelete (fix(react_compiler): lowerdelete obj.propto Property/ComputedDelete #24123) (Boshen)typeAnnotationasTSTypeAnnotation | null(fix(ast): type binding nodetypeAnnotationasTSTypeAnnotation | null#23113) (Boshen)try_fold_addwhen the inner operator is+(fix(minifier): only merge string literals intry_fold_addwhen the inner operator is+#23622) (Jerry Zhao)⚡ Performance
ReplaceWithinstead ofTakeIn(perf(isolated_declarations): useReplaceWithinstead ofTakeIn#24016) (overlookmotel)ReplaceWithinstead ofTakeIn(perf(transformer): useReplaceWithinstead ofTakeIn#24015) (overlookmotel)get_var_name_from_node(perf(traverse): reduce string operations inget_var_name_from_node#24007) (overlookmotel)Vec(perf(transformer/object_rest_spread): pre-allocate capacity inVec#23988) (overlookmotel)📚 Documentation
TakeIn::take_in_box(docs(allocator): clarify docs forTakeIn::take_in_box#24093) (overlookmotel)PrivateFieldExpression(docs(ast): correct doc comment forPrivateFieldExpression#24008) (overlookmotel)dcemode means (docs(minifier): explain whatdcemode means #23994) (Dunqing)StructDetails(docs(ast_macros): document fields ofStructDetails#23959) (overlookmotel)