Samuel Colvin(@samuelcolvin):Significant `jiter` release, in particular this includes SIMD support for x86, which should give up to 7x performance improvement for parsing long strings. There are also significant improvements for tape reuse, arm64 string SIMD, float parsing and more. jiter is the most used 3rd party JSON library in Python as a dependency of @pydantic validation. it's also used in Pydantic Monty, and in Pydantic Logfire via datafusion-functions-json. Short story: apply strict constraints, provide clear benchmarks for the thing you want to improve, use @codspeedhq, let fable and astra do their thing.

2026.09.12 16:44

Significant `jiter` release, in particular this includes SIMD support for x86, which should give up to 7x performance improvement for parsing long strings. There are also significant improvements for tape reuse, arm64 string SIMD, float parsing and more. jiter is the most used 3rd party JSON library in Python as a dependency of @pydantic validation. it's also used in Pydantic Monty, and in Pydantic Logfire via datafusion-functions-json. Short story: apply strict constraints, provide clear benchmarks for the thing you want to improve, use @codspeedhq, let fable and astra do their thing.