Releases of oxc-parser

186 stable releases, newest first. Release notes are kept for the last 90 days; older ones link to where they were published.

1. 0.154.0

   13 October 2026

   Breaking changes

   • breaking

     ast: Refactor comment attachment storage

   • breaking

     ast: Add comment attachment storage

   • breaking

     parser: Assign node IDs during parsing

   Show all 54 linesShow 5 internal changes (docs, tests, tooling)

2. 0.153.0

   5 October 2026

   Features

   • minifier: Fold undefined argument in non delegating yield

   • ast: Tie debug_name return lifetime to the underlying AST node

   • minifier: Merge import statements against the same module

   Show all 34 linesShow 1 internal change (docs, tests, tooling)

3. 0.152.0

   29 September 2026

   Features

   • str: Add JSStr, JSChar and JSStrBuilder types

   • regular_expression: Support buffer boundary assertions

   • transform-react: Add reportDiagnostics option to expose recoverable React Compiler diagnostics

   Show all 20 linesShow 17 internal changes (docs, tests, tooling)

4. 0.151.0

   21 September 2026

   Features

   • coverage: Support new TypeScript fixture layout

   Bug Fixes

   • minifier: Add missing negation for boolean literal

   Show all 13 lines

5. 0.150.0

   14 September 2026

   Features

   • ecma: Define math constants as known globals and resolve their types

   • codegen: Add ascii_only option

   • minifier: Negate binary comparison for typeof x < 'u'

   Show all 46 linesShow 1 internal change (docs, tests, tooling)

6. 0.149.0

   7 September 2026

   Breaking changes

   • breaking

     parser: Rename panicked to fatal_error in ParserReturn

   • breaking

     parser: Reduce MAX_LEN to 256 bytes below u32::MAX

   Features

   Show all 41 linesShow 3 internal changes (docs, tests, tooling)

7. 0.148.0

   1 September 2026

   Breaking changes

   • breaking

     allocator: Make Allocator::cursor_ptr and data_end_ptr private

   Features

   • minifier: Drop cases whose condition is statically false

   Show all 29 lines

8. 0.147.0

   24 August 2026

   Features

   • minifier: Fold switch stmt whose parent is not block stmt

   Bug Fixes

   • codegen: Require sourcemap for example

   Show all 29 linesShow 2 internal changes (docs, tests, tooling)

9. 0.146.0

   19 August 2026

   Features

   • minifier: Improve negation of expressions in boolean context

   Bug Fixes

   • codegen: Narrow printSync input type

   Show all 17 linesShow 1 internal change (docs, tests, tooling)

10. 0.145.0

    18 August 2026

    Breaking changes

    • breaking

      packages/codegen: printSync return an object

    Features

    • packages/codegen: Alter capitalization of sourceFilename option

    Show all 63 linesShow 9 internal changes (docs, tests, tooling)

11. 0.144.0

    10 August 2026

    Breaking changes

    • breaking

      ast: Group class heritage into ClassHeritage

    • breaking

      ast: Narrow TSInterfaceHeritage::expression to TSTypeName

    • breaking

      ast: Remove duplicated VariableDeclarator::kind

    Show all 28 linesShow 1 internal change (docs, tests, tooling)

12. 0.143.0

    3 August 2026

    Breaking changes

    • breaking

      semantic: Return borrowed JSDoc so the parse cache works

    • breaking

      allocator: Remove ArenaBox::dangling method

    • breaking

      ast: Store single parameter in TSIndexSignature::parameter

    Show all 35 linesShow 1 internal change (docs, tests, tooling)

13. 0.142.0

    27 July 2026

    Breaking changes

    • breaking

      ast: Tighten bound on AstBuild trait

    Features

    • minifier: Fold parenthesized boolean ternary tests

    Show all 41 linesShow 2 internal changes (docs, tests, tooling)

14. 0.141.0

    21 July 2026

    Breaking changes

    • breaking

      str: Move IdentBuildHasher to oxc_str crate

    • breaking

      ast: Split MetaProperty into ImportMeta and NewTarget

    Features

    Show all 67 linesShow 1 internal change (docs, tests, tooling)

15. 0.140.0

    14 July 2026

16. 0.139.0

    6 July 2026

17. 0.138.0

    29 June 2026

18. 0.137.0

    18 June 2026

19. 0.136.0

    15 June 2026

20. 0.135.0

    8 June 2026

21. 0.134.0

    1 June 2026

22. 0.133.0

    26 May 2026

23. 0.132.0

    18 May 2026

24. 0.131.0

    15 May 2026

25. 0.130.0

    11 May 2026

26. 0.129.0

    5 May 2026

27. 0.128.0

    27 April 2026

28. 0.127.0

    20 April 2026

29. 0.126.0

    16 April 2026

30. 0.125.0

    13 April 2026

31. 0.124.0

    7 April 2026

32. 0.123.0

    31 March 2026

33. 0.121.0

    19 March 2026

34. 0.120.0

    16 March 2026

35. 0.119.0

    14 March 2026

36. 0.118.0

    12 March 2026

37. 0.117.0

    9 March 2026

38. 0.116.0

    2 March 2026

39. 0.115.0

    23 February 2026

40. 0.114.0

    16 February 2026

41. 0.112.0

    2 February 2026

42. 0.111.0

    26 January 2026

43. 0.110.0

    19 January 2026

44. 0.109.0

    19 January 2026

45. 0.108.0

    12 January 2026

46. 0.107.0

    5 January 2026

47. 0.106.0

    29 December 2025

48. 0.105.0

    22 December 2025

49. 0.104.0

    19 December 2025

50. 0.103.0

    15 December 2025