3.9.11

Changed

• Improve performance of serializing. str is significantly faster. Documents
  using dict, list, and tuple are somewhat faster.

3.9.10

Fixed

• Fix debug assert failure on 3.12 --profile=dev build.

3.9.9

Changed

• orjson module metadata explicitly marks subinterpreters as not supported.

3.9.8

Changed

• Improve performance.
• Drop support for Python 3.7.

3.9.7

Fixed

• Fix crash in orjson.loads() due to non-reentrant handling of persistent
  buffer. This was introduced in 3.9.3.
• Handle some FFI removals in CPython 3.13.

3.9.6

Fixed

• Fix numpy reference leak on unsupported array dtype.
• Fix numpy.datetime64 reference handling.

Changed

• Minor performance improvements.

3.9.5

Fixed

• Remove futex from module import and initialization path.

3.9.4

Fixed

• Fix hash builder using default values.
• Fix non-release builds of orjson copying large deserialization buffer
  from stack to heap. This was introduced in 3.9.3.

3.9.3

Fixed

• Fix compatibility with CPython 3.12.

Changed

• Support i686/x86 32-bit Python installs on Windows.

3.9.2

Fixed

• Fix the __cause__ exception on orjson.JSONEncodeError possibly being
  denormalized, i.e., of type str instead of Exception.