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CHANGELOG.md

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Changelog

[Unreleased]

[0.6.0] - 2024-04-22

  • Upgrade to argmin 0.10.0:
    • new serde1 feature to enable serialization/deserialization (required for checkpointing)
    • add argmin-observer-slog dependency

[0.5.1] - 2023-10-19

  • Fix default constraint tolerance (set to zero, was 2e-4)

[0.5.0] - 2023-10-13

  • Remove fmin_cobyla implementation as nlopt_cobyla now renamed minimize based on NLopt implementation is more powerful Nevertheless Cobyla argmin solver is still based on initial implementation, not on NLopt one.
  • Remove gradient from ObjFn trait which is now renamed Func
  • minimize API rework to make it more Rusty.
  • Not all options of NLopt version are managed. Currently cobyla::minimize handles xinit, bounds, max_eval, ftol_rel, ftol_abs, xtol_rel, xtol_abs and only inequality contraints (like c >= 0). See documentation for further details.

[0.4.0] - 2023-10-06

COBYLA implementation coming from the NLopt project is now also available (as nlopt_cobyla) allowing to compare with the initial implementation (fmin_cobyla). This new implementation went through the same process of using c2rust transpilation from initial C implementation.

[0.3.0] - 2023-01-28

COBYLA is now also implemented as an argmin::Solver to benefit from argmin framework tooling. See example

[0.2.0] - 2023-01-09

COBYLA C code has been translated to Rust using c2rust then manually edited.

[0.1.0] - 2022-05-06

Rust wrapper for COBYLA optimizer (COBYLA stands for Constrained Optimization BY Linear Approximations). COBYLA C code was copied from here and wrapped using the callback trick implemented in nlopt-rust project.