Releases · jcrist/msgspec

Fix ValidationError and DecodeError raised in dec_hook being incorrectly wrapped in another ValidationError (#1013).
Fix a potential NULL dereference in structmeta_get_module_ns (#1016).
Fix a reference leak in ms_passes_big_int_constraints (#1017).
Fix missing ref_template parameter in msgspec.json.schema type stub (#1002).
Clarify order='deterministic' encoder docstrings (#1011).
Add a porting guide for users migrating from orjson (#1007).

Fix a segfault on Python 3.13+ that could occur when creating structs that contained a __dict__, instead of only using __slots__ (#960).
Improve type annotations for msgspec.UNSET (#975).
Fix hashing of decoded tuples on Python 3.14 (#980).
Add ref_template arg to msgspec.json.schema (#983).
Add missing libm linkage to some architectures (#993).
Fix memory leak when decoding sets (#991).
Add uniqueItems annotation to set/frozenset JSON schemas (#984).
BREAKING: Call __post_init__ from msgspec.structs.replace/copy.replace (#1000).

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).

Improve JSON encoding performance by up to 40% (#647).
Ensure tuple and frozenset default values are treated identically whether specified by value or default_factory (#653).
Fix memory leak of match_args in StructConfig object (#684).
Fix memory leak in Raw.copy() (#709).
Update decode signatures for PEP 688 (#740).
Generate __replace__ method on Struct types, for use with copy.replace (#747).
Fix incorrect decoding of certain > 64 bit integers (#751).
Call __post_init__ when converting from an object to a Struct (#752).
BREAKING: Expand buffer when encode_into is passed a buffer smaller than offset (#753).
Support Raw objects as inputs to convert (#754).
Error nicely when a dataclass type (instead of an instance) is passed to encode (#755).
Drop support for Python 3.8 (#756, #763).
Add support for Python 3.13 (#711).
Remove deprecated from_builtins (#761).
Support encoding any Enum type whose .value is a supported type (#757).
Don't fail eagerly when processing generic types with unsupported __parameters__ (#772).
Use eval_type_backport to backport type annotations to Python 3.9 (#773).

Support coercing integral floats to ints when strict=False (#619).
Preserve leading _ when renaming fields to camel or pascal case (#620).
Support zero-copy decoding binary fields to a memoryview (#624).
Fix a bug when inheriting from the same Generic base class multiple times (#626).
Add an order option to all encoders for enforcing deterministic/sorted ordering when encoding. This can help provide a more consistent or human readable output (#627).
Support inheriting from any slots-class when defining a new Struct type with gc=False (#635).
Automatically infer the input field naming convention when converting non-dict mappings or arbitrary objects to Struct types in msgspec.convert (#636).

Support unhashable Annotated metadata in msgspec.inspect.type_info (#566).
Fix bug preventing decoding dataclasses/attrs types with default values and slots=True, frozen=True (#569).
Support passing parametrized generic struct types to msgspec.structs.fields (#571).
Validate str constraints on dict keys when decoding msgpack (#577).
Support UUID subclasses as inputs to msgspec.convert (#592).
Call __eq__ from generated __ne__ if user defines manual __eq__ method on a Struct type (#593).
Include the Struct type in the generated hash (#595).
Add a cache_hash struct option (#596).
Fix a bug around caching of dataclass type info when dealing with subclasses of dataclasses (#599).
Add msgspec.structs.force_setattr (#600).
Support custom dict key types in JSON encoder and decoder (#602).
Include dict key constraints in generated JSON schema via the propertyNames field (#604).
Add a schema_hook for generating JSON schemas for custom types (#605).
Add support for Python 3.12's type aliases (#606).

Resolve an issue leading to periodic segfaults when importing msgspec on CPython 3.12 (#561)

Support Enum._missing_ hooks for handling unknown enum values (#532).
Fix JSON encoding of datetime.datetime objects with zoneinfo.ZoneInfo timezone components (#534).
Add support for attrs validators (#538).
Relax datetime/time parsing format to allow some RFC3339 extensions from ISO8601 (#539).

Support custom builtin_types in msgspec.to_builtins (#517).
Try getattr before getitem when converting with from_attributes=True (#519).
More efficient module state access in top-level functions (#521).

Releases: jcrist/msgspec