💥 BREAKING CHANGES

• 502e804 ast: [BREAKING] Reduce size of TSTypePredicateName (perf(ast)!: reduce size of TSTypePredicateName #21711) (overlookmotel)
• 5651539 ast: [BREAKING] Reduce size of JSXExpression (perf(ast)!: reduce size of JSXExpression #21710) (overlookmotel)
• c44e280 ast: [BREAKING] Reduce size of ArrayExpressionElement (perf(ast)!: reduce size of ArrayExpressionElement #21709) (overlookmotel)
• c5b3deb syntax: [BREAKING] Remove CommentNodeId (feat(syntax)!: remove CommentNodeId #21679) (overlookmotel)

🚀 Features

• b738a39 allocator: Add Allocator::cursor_ptr method (feat(allocator): add Allocator::cursor_ptr method #21773) (overlookmotel)
• 678767e ast: Generate node_id accessors for AST enum wrappers (feat(ast): generate node_id accessors for AST enum wrappers #21653) (camc314)
• f091d77 minifier: Inline constant spread elements into arrays (feat(minifier): inline constant spread elements into arrays #21095) (Armano)

🐛 Bug Fixes

• 0d608c2 minifier: Preserve raw CR in template literals (fix(minifier): preserve raw CR in template literals #21645) (Dunqing)
• a889ea9 minifier: Track pure functions in DCE mode (fix(minifier): track pure functions in DCE mode #21722) (Dunqing)
• 674dfac allocator: Arena retry allocation when chunk size approaches maximum (fix(allocator): Arena retry allocation when chunk size approaches maximum #21777) (overlookmotel)
• f130cc0 allocator: Fix arithmetic overflow in Arena::new_chunk_memory_details (fix(allocator): fix arithmetic overflow in Arena::new_chunk_memory_details #21745) (overlookmotel)
• b9bf239 allocator: Fix UB in Arena::grow_zeroed (fix(allocator): fix UB in Arena::grow_zeroed #21739) (overlookmotel)
• d2b9389 allocator: Clippy warning when building without testing feature (fix(allocator): clippy warning when building without testing feature #21681) (camc314)
• 503dc86 codegen: Map sourcemaps from visible output starts (fix(codegen): map sourcemaps from visible output starts #21662) (Dunqing)
• c92bd3b transformer: Use SPAN for synthesized helper calls to prevent comment misattribution (fix(transformer): use SPAN for synthesized helper calls to prevent comment misattribution #21578) (Dunqing)
• 0d80441 codegen: Add mapping before printing # for private ident (fix(codegen): add mapping before printing # for private ident #21619) (camc314)

⚡ Performance

• 9fa362e napi/parser: Do not generate tokens except in tests (perf(napi/parser): do not generate tokens except in tests #21811) (overlookmotel)
• 0044392 allocator: Reduce branches when allocating new chunk (perf(allocator): reduce branches when allocating new chunk #21776) (overlookmotel)
• 7896bd0 allocator: Allocator::used_bytes do not use chunk iterator (perf(allocator): Allocator::used_bytes do not use chunk iterator #21771) (overlookmotel)
• a5c562f allocator: Remove check in Arena::new_chunk_memory_details (perf(allocator): remove check in Arena::new_chunk_memory_details #21750) (overlookmotel)
• 35bbe1f allocator: Arena use unchecked size round up where guaranteed no overflow (perf(allocator): Arena use unchecked size round up where guaranteed no overflow #21743) (overlookmotel)
• ffe229b allocator: Remove unnecessary check from Arena::try_alloc_layout_slow_impl (perf(allocator): remove unnecessary check from Arena::try_alloc_layout_slow_impl #21732) (overlookmotel)
• 72fece5 allocator: Use NonNull::offset_from_unsigned in Arena::chunk_capacity (perf(allocator): use NonNull::offset_from_unsigned in Arena::chunk_capacity #21731) (overlookmotel)
• cab32ae ast: Add #[inline(always)] to node_id methods on enums with all variants unboxed (perf(ast): add #[inline(always)] to node_id methods on enums with all variants unboxed #21707) (overlookmotel)
• b179688 parser: Allocate TriviaBuilder comments in the arena (perf(parser): allocate TriviaBuilder comments in the arena #21512) (Boshen)
• 2290f31 lexer: Fix perf of Token::set_* methods on Rust 1.95.0 (perf(lexer): fix perf of Token::set_* methods on Rust 1.95.0 #21659) (overlookmotel)
• 1b58029 allocator: Move code into cold path in Arena::alloc_layout (perf(allocator): move code into cold path in Arena::alloc_layout #21622) (overlookmotel)
• 3cf7cef allocator: Reduce instructions on allocation hot path (perf(allocator): reduce instructions on allocation hot path #21510) (overlookmotel)

📚 Documentation

• ce65070 data_structures: Document why as_ref and as_mut on NonNullConst and NonNullMut take self (docs(data_structures): document why as_ref and as_mut on NonNullConst and NonNullMut take self #21800) (overlookmotel)
• 93b7dbd allocator: Improve doc comments for ChunkFooter (docs(allocator): improve doc comments for ChunkFooter #21733) (overlookmotel)
• 295db8d transformer: Fix comment (docs(transformer): fix comment #21717) (overlookmotel)
• 5c93af8 ast: Add comments explaining #[inline(always)] to node_id methods on enums (docs(ast): add comments explaining #[inline(always)] to node_id methods on enums #21706) (overlookmotel)
• e4cea25 transform: Use the node: namespace in the example (docs(transform): use the node: namespace in the example #19998) (루밀LuMir)

🛡️ Security

• d8076c9 deps: Update rolldown (chore(deps): update rolldown #21639) (renovate)