ci: install [optional] on 3.13, pin jax<0.7 for tfp compat#82
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Python 3.13 was branching to a numba-only install path that skipped the [optional] extras, so the JAX likelihood-function smoke scripts all failed with `ModuleNotFoundError: No module named 'jax'`. JAX 0.6.x and onward have cp313 wheels — the conditional is no longer needed. Pinning `jax<0.7 jaxlib<0.7` before the [optional] install keeps tfp 0.25.0 (latest on PyPI) compatible: tfp.substrates.jax references `jax.interpreters.xla.pytype_aval_mappings`, removed in JAX 0.7.0. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
[optional]extras — JAX 0.6.x has cp313 wheels.jax<0.7 jaxlib<0.7so the resolver stays on a tfp-0.25.0-compatible JAX.ModuleNotFoundError: No module named 'jax'failures on 3.13.Test plan
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