Download Latest Version Version 0.20.0 source code.tar.gz (1.3 MB)
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README.md 2025-11-24 889 Bytes
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Version 0.20.0 source code.tar.gz 2025-11-24 1.3 MB
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  • Support Python 3.14, including freethreaded mode (#852, [#877]).
  • Expose the StructMeta metaclass (#890, [#927], [#928], [#940], [#945]).
  • Add msgspec.inspect.is_struct and msgspec.inspect.is_struct_type functions for checking whether an object is a msgspec.Struct-like instance or class (#950).
  • Support Windows arm64 builds (#943).
  • Enable ThinLTO on macOS aarch64 builds (#937).
  • Fix leaks of re.Pattern objects when using pattern constraints of msgspec.Meta (#899).
  • Fixed memoryview support for msgspec.msgpack (#836).
  • Fix crash when typing.TypedDict contains incorrect metadata (#853, [#947]).
  • Add setuptools-scm as a build dependency instead of vendoring versioneer (#905).
  • Remove support for legacy packaging builds (#907).
  • Improved the developer experience by adding the just command runner and Dev Container support (#918).
Source: README.md, updated 2025-11-24