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@NicolaCourtier NicolaCourtier released this 31 Oct 17:20
· 17 commits to main since this release
v25.10
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Learn about vigilant mode.

Full Changelog: https://github.com/pybop-team/PyBOP/blob/develop/CHANGELOG.md

v25.10 - 2025-10-31

This release presents a major restructure of PyBOP's base classes. We move from setting up a model, problem, cost,
then optimiser to defining a simulator, cost, problem, and then optimiser. A pybop.pybamm.Simulator is designed
to simulate a pybamm.BaseModel. Optimisation parameters can be passed through a pybamm.ParameterValues class.
To understand how to update your use of PyBOP, please take a look at the example notebooks and scripts.

Breaking Changes

  • #820 - Remove the name property from pybop.Parameter
  • #821 - Remove the papers folder and update Readme.
  • #809 - Major restructure, including:
  • Deprecate Python 3.9 support
  • Update initial state setting (requires PyBaMM > 25.8)
  • Remove jax methods
  • Add PyBaMM and PyBaMM-EIS simulators for rebuilding and running simulations for a given set of input parameters
  • Remove PyBaMM wrappers and enable use of PyBaMM model, parameter values and experiment classes
  • Remove observers
  • Remove standalone class examples
  • Improve logging
  • Remove Optimisation and MCMCSampler wrapper classes
  • Remove Fisher information computation
  • Rename apply_transform argument to transformed
  • Remove the update_capacity option from the DesignProblem
  • Update sensitivities retrieval (for PyBaMM 25.8)
  • Remove uninformative examples
  • Move optimiser and sampler options into defined classes
  • Add PyBaMM utilities, design variable definitions and the add_variable_to_model function
  • Allow plotting via functions on the OptimisationResult
  • Separate the cost classes from the Problem
  • Replace FittingProblem and DesignProblem by a single Problem class
  • Rename and reimplement MultiFittingProblem as MetaProblem
  • Add BaseSimulator as a generic base class for the pybop.pybamm.Simulator and pybop.pybamm.EISSimulator
  • Enable pybop.Parameter objects to be passed directly to an instance of pybamm.ParameterValues
  • Update the method for setting formation concentrations to be part of the model definition
  • Rename some example scripts and notebooks
  • Update the docs and test workflows
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