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wasmtime

A WebAssembly runtime powered by Wasmtime

48.0.0 1.9M downloads/mo #3449 most downloaded on PyPI bytecodealliance/wasmtime-py

What this package is like to depend on

Last release 2 days ago

20 Aug 2026

Ships on a steady schedule

a new release about every 4 weeks

Rarely documented

notes for 9 of 90 stable releases

2 versions withdrawn

withdrawn after publishing

7 years old

92 releases · first in 2019

12 releases in the last 12 months

see the full history below

Release timeline

92 releases · Aug 2019 to Aug 2026
2020 2021 2022 2023 2024 2025 2026
Release Pre-release Withdrawn

Releases

latest 60 of 92
  1. 48.0.0 20 Aug 2026
    Release notes
    • Bump to 48.0.0

    • Fix tests

    Open source →
  2. 47.0.1 20 Jul 2026
    Release notes

    Trying to deal with CI weirdness

    Open source →
    Commits, not release notes

    This project publishes no release notes. Between 46.0.1 and 47.0.1 there were 2 commits, 1 of them substantive:

    • Update to 47.0.0 (#340)
  3. 46.0.1 29 Jun 2026
    Release notes

    Update to Wasmtime 46.0.1 (#339)

    Open source →
    Commits, not release notes

    This project publishes no release notes. Between 45.0.0 and 46.0.1 there were 2 commits, 2 of them substantive:

    • Add wasi:http support (#332)
    • Update to Wasmtime 46.0.1 (#339)
  4. 45.0.0 26 May 2026
    Release notes

    Update to Wasmtime 45.0.0 (#338)

    Open source →
    Commits, not release notes

    This project publishes no release notes. Between 44.0.0 and 45.0.0 there were 3 commits, 3 of them substantive:

    • Add bindings for various features/APIs in the C API not previously here (#335)
    • Fix BaseException escape from host callback trampoline (#336) (#337)
    • Update to Wasmtime 45.0.0 (#338)
  5. 44.0.0 20 Apr 2026
    Release notes

    Update to Wasmtime 44.0.0 (#334)

    Open source →
    Commits, not release notes

    This project publishes no release notes. Between 43.0.0 and 44.0.0 there were 2 commits, 2 of them substantive:

    • Fix MRO for VariantLikeType.add_classes (#331)
    • Update to Wasmtime 44.0.0 (#334)
  6. 43.0.0 31 Mar 2026
    Release notes

    Bump to 43.0.0 (#330)

    Open source →
  7. 42.0.0 24 Feb 2026
    Release notes

    Bump to 42.0.0 (#328)

    Open source →
    Commits, not release notes

    This project publishes no release notes. Between 41.0.0 and 42.0.0 there were 2 commits, 1 of them substantive:

    • Delete obsolete section in Readme recommending wasmtime.loader (#327)
  8. 41.0.0 20 Jan 2026
    Release notes

    Bump to 41.0.0 (#326)

    Open source →
  9. 40.0.0 22 Dec 2025
    Release notes

    Bump to 40.0.0 (#325)

    Open source →
    Commits, not release notes

    This project publishes no release notes. Between 39.0.0 and 40.0.0 there were 3 commits, 2 of them substantive:

    • Use uv on CI (#321)
    • remove unused dependency (#324)
  10. 39.0.0 20 Nov 2025
    Commits, not release notes

    This project publishes no release notes. Between 38.0.0 and 39.0.0 there were 16 commits, 15 of them substantive:

    • Fix ResourceReader ImportError exception on Python 3.14 (#299)
    • Add musl aarch64 binaries (#295)
    • Update to dev release (#305)
    • Add support for exceptions configuration (#296)
    • Add __main__ guards to examples (#306)
    • Fix defining fields of forward-declared structures (#307)
    • Bind the C API for components (#308)
    • Delete wasmtime.loader and wasmtime.bindgen (#310)
    • Implement capturing stdout/stderr in Python (#311)
    • Delete outdated contributing docs
    • Cut down component section of README
    • Declare wasmtime.* packages and exclude .git/ et al when discovering tests (#314)
    • Eliminate from ... import * in wasmtime.* (#304)
    • Remove componentize-py dependency, no longer needed (#317)
    • Fix tests in PyPy3 (#320)
  11. 38.0.0 20 Oct 2025

    Nothing published for this version

  12. 37.0.0 08 Oct 2025

    Nothing published for this version

  13. 36.0.0 20 Aug 2025

    Nothing published for this version

  14. 35.0.0 22 Jul 2025

    Nothing published for this version

  15. 34.0.0 20 Jun 2025

    Nothing published for this version

  16. 33.0.0 20 May 2025

    Nothing published for this version

  17. 32.0.0 21 Apr 2025

    Nothing published for this version

  18. 31.0.0 21 Mar 2025

    Nothing published for this version

  19. 30.0.0 20 Feb 2025

    Nothing published for this version

  20. 29.0.0 22 Jan 2025

    Nothing published for this version

  21. 28.0.0 20 Dec 2024

    Nothing published for this version

  22. 27.0.2 25 Nov 2024

    Nothing published for this version

  23. 27.0.1 21 Nov 2024

    Nothing published for this version

  24. 27.0.0 20 Nov 2024 withdrawn

    Fixed API compat in 27.0.1

    Nothing published for this version

  25. 25.0.0 20 Sep 2024

    Nothing published for this version

  26. 24.0.0 20 Aug 2024

    Nothing published for this version

  27. 23.0.0 22 Jul 2024

    Nothing published for this version

  28. 22.0.0 20 Jun 2024

    Nothing published for this version

  29. 21.0.0 20 May 2024

    Nothing published for this version

  30. 20.0.0 23 Apr 2024

    Nothing published for this version

  31. 19.0.0 20 Mar 2024

    Nothing published for this version

  32. 18.0.2 02 Mar 2024

    Nothing published for this version

  33. 18.0.0 21 Feb 2024

    Nothing published for this version

  34. 17.0.1 08 Feb 2024

    Nothing published for this version

  35. 17.0.0 25 Jan 2024

    Nothing published for this version

  36. 16.0.0 22 Jan 2024

    Nothing published for this version

  37. 15.0.0 20 Nov 2023

    Nothing published for this version

  38. 14.0.0 22 Oct 2023

    Nothing published for this version

  39. 13.0.2 25 Sep 2023

    Nothing published for this version

  40. 13.0.1 21 Sep 2023

    Nothing published for this version

  41. 13.0.0 20 Sep 2023

    Nothing published for this version

  42. 12.0.0 21 Aug 2023

    Nothing published for this version

  43. 11.0.0 20 Jul 2023

    Nothing published for this version

  44. 10.0.1 18 Jul 2023

    Nothing published for this version

  45. 10.0.0 03 Jul 2023

    Nothing published for this version

  46. 9.0.0 22 May 2023

    Nothing published for this version

  47. 8.0.1 24 Apr 2023

    Nothing published for this version

  48. 8.0.0 20 Apr 2023

    Nothing published for this version

  49. 7.0.0 20 Mar 2023

    Nothing published for this version

  50. 6.0.0 20 Feb 2023

    Nothing published for this version

  51. 5.0.0 20 Jan 2023

    Nothing published for this version

  52. 4.0.0 07 Jan 2023

    Nothing published for this version

  53. 3.0.0 22 Nov 2022

    Nothing published for this version

  54. 2.0.0 24 Oct 2022

    Nothing published for this version

  55. 1.0.1 27 Sep 2022

    Nothing published for this version

  56. 1.0.0 21 Sep 2022

    Nothing published for this version

  57. 0.40.0 30 Aug 2022

    Nothing published for this version

  58. 0.39.1 21 Jul 2022

    Nothing published for this version

  59. 0.38.0 21 Jun 2022

    Nothing published for this version

  60. 0.37.0 15 Jun 2022

    Nothing published for this version

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