Docs for the work needed to support free-threading: - [Declaring FT support](https://docs.python.org/3/howto/free-threading-extensions.html#multi-phase-initialization) - [APIs to check](https://docs.python.org/3/howto/free-threading-extensions.html#general-api-guidelines) - [Non-official porting guide](https://py-free-threading.github.io/porting/)
