New wheel needed for python 3.14

[MJKirk]

Python 3.14 just came out, and in an attempt to be very efficient (/procrastinate) I tried to add support for that version to EOS.
However, we depend on wilson which depends on this, so a python 3.14 wheel for rundec is needed.

The easy option is just to bump the version of cibuildwheel to the latest version that includes 3.14.

The more "fun" option is to look into building forward compatible wheel using the limited CPython ABI (see https://docs.python.org/3.11/c-api/stable.html#limited-c-api). Building wheels using this means they'll be compatible with future versions, and we don't have to go through this every year when a new python version comes out. (I recently implemented this for pypmc relatively easily - see pypmc/pypmc#113)
SWIG seems to support building using this limited ABI as of v4.2.0, and according to the documentation it seems straightforward to use: https://www.swig.org/Doc4.4/Python.html#Python_stable_abi

[DavidMStraub]

Interesting, thanks for the info @MJKirk! I guess it depends on whether you can wait a few days for me to figure out how to do this 😆

[MJKirk]

Absolutely no rush!
One piece of information: for pypmc you'll see I had to do the building conditionally, as it would only work for the ABI version of 3.11 upwards (which I established through trial and error, nothing clever) and we are still building for 3.9 and 3.10 at the moment.

[DavidMStraub]

Good to know. I certainly don't want to support 3.9 anymore - I wouldn't even mind dumping 3.10, SPEC0 even permits dumping 3.11. It depends on what @peterstangl wants to support upstream in flavio.

[peterstangl]

I would suggest to support all Python versions that have active security support (i.e. currently 3.10 and newer). I don't see a large maintenance burden from still supporting 3.10 and 3.11 (at least if it's not too complicated to implement the ABI wheels while still supporting 3.10). I guess the old 3.10 wheels could just be kept as they are?

[MJKirk]

@DavidMStraub - did you get anywhere with looking into limited ABI wheels?

[DavidMStraub]

Nope, thanks for the nudge, will track it as a task now 🫡

[DavidMStraub]

FYI the new version isn't working yet, investigating...

[DavidMStraub]

Ok, v0.7.1 should work. Please report problems. Thanks @MJKirk, my LLM & I learned something today.