Version 0.4.0

This is a major release with several large changes:

• Moved MessagePack support to the msgspec.msgpack submodule
• New JSON support available in msgspec.json
• Improved error message generation to provide full path to the mistyped values
• Renamed the immutable kwarg in msgspec.Struct to frozen to better match python conventions
• Renamed EncodingError to EncodeError/DecodingError to DecodeError to better match python conventions
• Improved pyright support, allowing more errors to be statically caught by their type checker
• Adds support for Python 3.10 pattern matching on msgspec.Struct types
• Adds support for decoding into typing.Union types (with a few restrictions)
• General performance improvements across all encoders/decoders

Version 0.3.2

• Faster float encoding and decoding
• General micro-optimizations for write/read hot path. Most visible for large messages.

Version 0.3.1

• Use a freelist for small structs to improve struct allocation time.
• Small perf improvement for struct serialization

Version 0.3.0

• Add Encoder.encode_into api, for encoding into an existing buffer without copying
• Add support for encoding/decoding MessagePack extensions
• Add support for encoding/decoding datetime objects
• Add support for encoding/decoding custom objects without relying on MessagePack extensions
• Add support for marking Struct types as hashable
• Add support for serializing Struct types as MessagePack array objects rather than map objects.
• Several performance improvements. On average 50% faster encoding and 30% faster decoding.

Version 0.2.0

Add `default` callback to `encode`/`Encoder`

Adds a `default` callback kwarg to `Encoder` constructor and `encode`
function. This takes a callable that's called for all unsupported types
to optionally convert them into supported types (or error if
unsupported). This is useful for lazily coercing possibly unsupported
types into a supported representation.

Also fixes a bug in the `Encoder` dealloc, and moves the `type` kwarg to
`msgspec.decode` to a keyword-only kwarg.

Version 0.1.0

Run workflow on release [ci skip]