💥 BREAKING CHANGES

• 36cdc31 str: [BREAKING] Remove identity FromIn impl for Ident (feat(str)!: remove identity FromIn impl for Ident #21251) (overlookmotel)
• 382958a span: [BREAKING] Remove re-exports of string types from oxc_span crate (feat(span)!: remove re-exports of string types from oxc_span crate #21246) (overlookmotel)
• c4aedfa str: [BREAKING] Add static_ident! macro (feat(str)!: add static_ident! macro #21245) (overlookmotel)

🚀 Features

• e7e1aea transformer/typescript: Add optimize_enums option for regular enum inlining (feat(transformer/typescript): add optimize_enums option for regular enum inlining #20539) (Dunqing)
• 679f57f transformer/typescript: Implement const enum inlining and declaration removal (feat(transformer/typescript): implement const enum inlining and declaration removal #20508) (Dunqing)
• 6dd061c semantic: Extend MemberWriteTarget to cover all property modification patterns (feat(semantic): extend MemberWriteTarget to cover all property modification patterns #21205) (Dunqing)
• f134e24 minifier: Support property_write_side_effects option to drop unused property assignments (feat(minifier): support property_write_side_effects option to drop unused property assignments #20773) (Dunqing)
• 75663c0 semantic: Add enum member value evaluation for const enum support (feat(semantic): add enum member value evaluation for const enum support #20602) (Dunqing)
• 3cfe8ed semantic: Add MemberWriteTarget flag to ReferenceFlags (feat(semantic): add MemberWriteTarget flag to ReferenceFlags #20772) (Dunqing)

🐛 Bug Fixes

• af1a586 transformer/class-properties: Use correct property name when converting parameter properties (fix(transformer/class-properties): use correct property name when converting parameter properties #21268) (Amal Jossy)
• b43250a allocator: Move allocation tracking into Bump (fix(allocator): move allocation tracking into Bump #21342) (overlookmotel)
• 36f505f allocator: StringBuilder use Allocator::alloc_layout (fix(allocator): StringBuilder use Allocator::alloc_layout #21340) (overlookmotel)
• 7a08a6f allocator: Fix allocation counting in Allocator::alloc_concat_strs_array (fix(allocator): fix allocation counting in Allocator::alloc_concat_strs_array #21336) (overlookmotel)
• 2338e28 ecmascript: Treat this as potentially having side effects (fix(ecmascript): treat this as potentially having side effects #21297) (sapphi-red)
• bd8bd39 allocator: Remove unsafe hacks from from_raw_parts methods (fix(allocator): remove unsafe hacks from from_raw_parts methods #21283) (overlookmotel)
• 8f4c340 allocator: Remove dangerous pointer const to mut cast (fix(allocator): remove dangerous pointer const to mut cast #21279) (overlookmotel)
• aa9259f parser: Add missing error code for optional param diagnostic (fix(parser): add missing error code for optional param diagnostic #21258) (camc314)
• 04b3c2f str: Fix unsound casting const pointers to mut pointers (fix(str): fix unsound casting const pointers to mut pointers #21242) (overlookmotel)
• ceadf6c str: Make Ident::from_raw an unsafe function (fix(str): make Ident::from_raw an unsafe function #21241) (overlookmotel)
• eab13b3 transformer/decorators: Avoid accessor storage name collisions (fix(transformer/decorators): avoid accessor storage name collisions #21106) (Dunqing)
• 07e8a30 transformer/react-refresh: Handle parenthesized variable initializers (fix(transformer/react-refresh): handle parenthesized variable initializers #21047) (camc314)

⚡ Performance

• c3ca6f6 allocator: StringBuilder::from_strs_array_in check for 0 length earlier (perf(allocator): StringBuilder::from_strs_array_in check for 0 length earlier #21338) (overlookmotel)
• c2422bb allocator: Allocator::alloc_concat_strs_array check for 0 length earlier (perf(allocator): Allocator::alloc_concat_strs_array check for 0 length earlier #21337) (overlookmotel)
• 04b0fdc allocator: Mark Allocator::alloc_layout as #[inline(always)] (perf(allocator): mark Allocator::alloc_layout as #[inline(always)] #21335) (overlookmotel)
• 17aee9e allocator: Use offset_from_unsigned in ChunkFooter::as_raw_parts (perf(allocator): use offset_from_unsigned in ChunkFooter::as_raw_parts #21280) (overlookmotel)
• 61adedd minifier: Fix O(n²) perf on very many var decls (perf(minifier): fix O(n²) perf on very many var decls #21062) (Gunnlaugur Thor Briem)
• addcd02 napi/parser, linter/plugins: Raw transfer deserializer for Vecs use shift instead of multiply where possible (perf(napi/parser, linter/plugins): raw transfer deserializer for Vecs use shift instead of multiply where possible #21142) (overlookmotel)
• 3068ded napi/parser, linter/plugins: Shift before add when calculating positions in raw transfer deserializer (perf(napi/parser, linter/plugins): shift before add when calculating positions in raw transfer deserializer #21141) (overlookmotel)
• eb400b8 napi/parser, linter/plugins: Remove uint32 buffer view (perf(napi/parser, linter/plugins): remove uint32 buffer view #21140) (overlookmotel)
• 2675085 napi/parser: Lazy deserialization use only Int32Array (perf(napi/parser): lazy deserialization use only Int32Array #21139) (overlookmotel)
• 5b35a53 napi/parser: Deserializing tokens use only int32 array (perf(napi/parser): deserializing tokens use only int32 array #21138) (overlookmotel)
• f163d10 parser: Tokens raw deserialization use Int32Array (perf(parser): tokens raw deserialization use Int32Array #21137) (overlookmotel)
• 7a86613 linter/plugins: Use Int32Arrays for tokens and comments buffers (perf(linter/plugins): use Int32Arrays for tokens and comments buffers #21136) (overlookmotel)
• 8c51121 napi/parser, linter/plugins: Raw transfer deserialize Span fields as i32s (perf(napi/parser, linter/plugins): raw transfer deserialize Span fields as i32s #21135) (overlookmotel)
• bc1bcdd napi/parser, linter/plugins: Inline trivial raw transfer field deserializers into node object definitions (perf(napi/parser, linter/plugins): inline trivial raw transfer field deserializers into node object definitions #21134) (overlookmotel)
• c0278ab napi/parser, linter/plugins: Use Int32Array in raw transfer deserializer (perf(napi/parser, linter/plugins): use Int32Array in raw transfer deserializer #21132) (overlookmotel)
• 43482c7 linter/plugins: Use >> not >>> in binary search loops (perf(linter/plugins): use >> not >>> in binary search loops #21129) (overlookmotel)

📚 Documentation

• f5e1845 allocator: Upgrade headers in doc comments for Bump (docs(allocator): upgrade headers in doc comments for Bump #21263) (overlookmotel)
• 2870174 allocator: Upper case SAFETY in comments (docs(allocator): upper case SAFETY in comments #21253) (overlookmotel)
• 01bc269 str: Reformat Ident doc comments (docs(str): reformat Ident doc comments #21240) (overlookmotel)
• dd47359 allocator: Add doc comments for panics and errors (docs(allocator): add doc comments for panics and errors #21230) (overlookmotel)