PyMC Bayesian Modeling Version and scope Targets PyMC 6.3.2 , PyTensor 3.3.2 , and ArviZ 1.3.0 . These are local Python APIs, with no service endpoint, credentials, or remote inference required. The native tests use the PyMC NUTS sampler on small synthetic models. Optional nutpie/JAX samplers, SMC, and production-scale convergence are not validated by those tests. Record the complete resolved environment, backend, seeds, preprocessing, and data provenance for a scientific run. Local macOS validation used after the C linker failed with ; this disables PyTensor C compilation for that process. T…