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1. Commits on Feb 19, 2026

   • GH-144651: Optimize the new uops added when recording values during tracing. (GH-144948)

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2. Commits on Feb 5, 2026

   • GH-144179: Use recorded values to make optimizer more robust (GH-144437)

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3. Commits on Feb 2, 2026

   • GH-144179: Add value recording to JIT tracing front-end (GH-144303)

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4. Commits on Jan 22, 2026

   • GH-139109: Partial reworking of JIT data structures (GH-144105)

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5. Commits on Jan 21, 2026

   • GH-138245: Perform boolean guards by testing a single bit, rather than a full pointer comparison. (GH-143810)

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6. Commits on Jan 16, 2026

   • GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)

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7. Commits on Jan 14, 2026

   • GH-143613: Add colours and some more edges to executor visualization graph (GH-143809)

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8. Commits on Dec 23, 2025

   • GH-143026: Fix assertion error in executor management. (GH-143104)

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9. Commits on Dec 18, 2025

   • GH-142513: Reimplement executor management (GH-142931)

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10. Commits on Dec 17, 2025

    • GH-142621: JIT: Avoid memory load for symbols within 4GB on AArch64 (GH-142820)

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11. Commits on Dec 16, 2025

    • GH-142629: JIT: Fix out of bounds memory read in lltrace (GH-142821)

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12. Commits on Dec 15, 2025

    • GH-142718: JIT: Fix crash due to incorrect caching on side exits when exiting jitted code. (GH-142762)

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13. Commits on Dec 11, 2025

    • GH-140683: JIT: Improve machine code for loading smaller constants on AArch64. (GH-142511)

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    • GH-135379: Top of stack caching for the JIT. (GH-135465)

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14. Commits on Dec 8, 2025

    • GH-139757: JIT: Remove redundant branches to jumps in the assembly optimizer (GH-140800)

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15. Commits on Dec 4, 2025

    • GH-139757: Fix reference leaks introduced in GH-140800 (GH-142257)

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16. Commits on Dec 3, 2025

    • GH-141794: Limit size of generated machine code. (GH-142228)

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17. Commits on Nov 19, 2025

    • GH-139653: Only raise an exception (or fatal error) when the stack pointer is about to overflow the stack. (GH-141711)

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18. Commits on Nov 18, 2025

    • GH-139109: Support switch/case dispatch with the tracing interpreter. (GH-141703)

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19. Commits on Oct 23, 2025

    • GH-135904: JIT compiler: Support 19 bit branch instructions on AArch64 for Mach-O. (GH-140453)

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20. Commits on Oct 21, 2025

    • GH-139951: Fix major GC performance regression (GH-140262)

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21. Commits on Oct 17, 2025

    • GH-135904: Implement assembler optimization for AArch64. (GH-139855)

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22. Commits on Oct 7, 2025

    • GH-139291: Fix C stack limits by factoring out finding hardware stack limits (GH-139294)

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23. Commits on Sep 23, 2025

    • GH-137573: Add test to check that the margin used for overflow protection is larger than the stack space used by the interpreter (GH-137724)

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24. Commits on Sep 18, 2025

    • GH-138378: Move globals-to-consts pass into main optimizer pass (GH-138379)

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25. Commits on Aug 21, 2025

    • GH-137959: Replace shim code in jitted code with a single trampoline function. (GH-137961)

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26. Commits on Aug 13, 2025

    • Add internal doc describing the stack protection mechanism (GH137663)

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27. Commits on Aug 9, 2025

    • GH-132532: Add new DSL macros to better declare semantics of exits at ends of instructions/uops. (GH-137098)

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28. Commits on Aug 2, 2025

    • GH-137276: Don't mark uop as escaping if the escaping call is on an exit branch (GH-137277)

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29. Commits on Aug 1, 2025

    • GH-136410: Faster side exits by using a cold exit stub (GH-136411)

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30. Commits on Jun 24, 2025

    • GH-135106: Restrict trashcan to GC'ed objects (GH-135682)

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31. Commits on Jun 19, 2025

    • GH-135379: Specialize int operations for compact ints only (GH-135668)

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32. Commits on Jun 17, 2025

    • GH-135379: Support limited scalar replacement for replicated uops in the JIT code generator. (GH-135563)

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33. Commits on Jun 11, 2025

    • GH-135379: Remove types from stack items in code generator. (GH-135384)

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34. Commits on Jun 5, 2025

    • GH-132554: Fix tier2 `FOR_ITER` implementation and optimizations (GH-135137)

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