release_notes.md

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modOpt 0.3.1 (July 29, 2026)

• Several updates to OpenSQP related to HVP usage in iBFGS.
• Remove use of private SciPy API token for version comparisons.

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modOpt 0.3.0 (July 28, 2026)

Feature Additions

• Integrate the Egor optimizer from the EGOBox library.
• Upgrade OpenMDAOProblem interface for compatibility with OpenMDAO>=3.44.
• OpenSQP can now take advantage of Hessian-Vector Products through in-place BFGS updates.
• If HVPs are unavailable, OpenSQP provides an option to estimate them with finite differences.

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modOpt 0.2.1 (April 29, 2026)

• Add verbosity option to OpenSQP
• Update tests to ensure comaptibility with latest Python and SciPy versions

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modOpt 0.2.0 (April 22, 2026)

Feature Additions

• Full support for NumPy 2.0
• Builtin InteriorPoint algorithm as an educational solver
• Builtin OpenSQP algorithm as a performant solver
• Support Hessian and multiplier initialization in OpenSQP
• Update CUTEst table with newest problems, tags, classifications
• Allow filtering CUTEst problems based on tags and return problem metadata
• Support adder in CSDLAlphaProblem
• Implement caching in AugmentedLagrangian

Bug Fixes

• Rounding issue in performance profiling
• Issue with callable checks in solver_options
• Reference bug in NewtonLagrange, MeritFunction cache

Miscellaneous

• Provide out_dir argument in Optimizer base class
• Include return_status, success, and stats in IPOPT results
• Update docs to use latest sphinx-collections
• Remove workflow for the old, github-hosted docs

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modOpt 0.1.0 (February 3, 2025)

• Initial production release of modOpt

Summary of major changes from the previous release - None

Old Features Removed

• None

New Features Added

• None

Old Features Improved

• None

New Deprecations

• None

Upgrade Process

• Details of how to upgrade from previous versions

Backwards Incompatible API Changes

• None

Backwards Incompatible Non-API Changes

• None

Bug Fixes

• None

Miscellaneous

• None