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1. Commits on Oct 5, 2026

   • Refine replacement field, comma and string decode error reporting

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     youknowone

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   • Report string, f-string and legacy statement errors with CPython messages

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     youknowone

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   • Report remaining statement errors with CPython messages

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     youknowone

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2. Commits on Oct 4, 2026

   • Report remaining expression errors with CPython messages

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     youknowone

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   • Report parameter, argument, star and dictionary errors with CPython messages

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     youknowone

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   • Name the invalid expression in binding target errors

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     youknowone

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   • Report unparenthesized except types once `as NAME :` matches

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     youknowone

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3. Commits on Sep 2, 2026

   • Validate unary expressions when parsing (#28233)

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     ntBre

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   • Allow unary plus in match patterns on Python 3.15 (#28231)

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     ntBre

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4. Commits on Aug 19, 2026

   • Align t-string/bytes mix error with CPython 3.14 (#27766)

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     Sacrimento

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     MichaReiser

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5. Commits on Aug 18, 2026

   • [syntax-errors] Detect duplicate keyword arguments (#17804)

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     eduardorittner

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     ntBre

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6. Commits on Jul 24, 2026

   • Reduce syntax error noise by swallowing dedents like indents

     epage

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   • Test more indentation cases

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7. Commits on Jun 16, 2026

   • Reject yield expressions after commas (#26024)

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     charliermarsh

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   • Reject starred comprehension targets (#26023)

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     charliermarsh

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8. Commits on Jun 15, 2026

   • Reject __debug__ lambda parameters (#26022)

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     charliermarsh

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   • Reject parenthesized star imports (#26021)

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     charliermarsh

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   • Detect equivalent numeric mapping keys (#26009)

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     charliermarsh

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   • Reject `_` as a match-pattern target (#25977)

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     charliermarsh

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   • Reject unparenthesized generator expressions in class bases (#25978)

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     charliermarsh

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   • Detect mapping keys equivalent to booleans (#25982)

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     charliermarsh

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9. Commits on Jun 14, 2026

   • Validate function type parameter default order (#25981)

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     charliermarsh

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   • Reject multiple starred names in sequence patterns (#25976)

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     charliermarsh

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10. Commits on May 23, 2026

    • Recover incomplete list comprehension elements (#25326)

      MichaReiser

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11. Commits on May 16, 2026

    • Add full PEP 798 support (#25104)

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      JelleZijlstra

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12. Commits on Apr 5, 2026

    • Reject multi-line f-string elements before Python 3.12 (#24355)

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      charliermarsh

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13. Commits on Apr 2, 2026

    • Disallow starred expressions as values of starred expressions (#24280)

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      dylwil3

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14. Commits on Mar 9, 2026

    • Add support for star-unpacking of comprehensions (PEP 798) (#23788)

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      charliermarsh

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15. Commits on Mar 6, 2026

    • Reject semantic syntax errors for lazy imports (#23757)

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      charliermarsh

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    • Add support for `lazy` import parsing (#23755)

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      charliermarsh

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16. Commits on Feb 19, 2026

    • [parser] Fix indentation tracking after line continuations (#23417)

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      dhruvmanila

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      kar-ganap

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    • [ty] Visit parameters in source order (#23403)

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      charliermarsh

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17. Commits on Feb 18, 2026

    • [parser] Fix false syntax error for match-like annotated assignments (#23297)

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      kar-ganap

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18. Commits on Dec 25, 2025

    • [ty] Fix completion in decorators with missing declaration (#22177)

      MichaReiser

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19. Commits on Dec 11, 2025

    • Skip over trivia tokens after re-lexing (#21895)

      MichaReiser

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