Pyomo/pyomo 6.9.2

Pyomo 6.9.2

on GitHub

Highlights of the 6.9 release series

• Removed support for Python 3.8
• New Logic-Based Discrete-Steepest Descent Algorithm in GDPOpt
• New External Function for Cubic Spline Interpolation
• New solver interfaces:
  • Support for upcoming knitro Python package
  • v2: Ongoing solver interface refactor
• ...and of course numerous minor bug fixes and performance enhancements

Changes in this release

• General
  • Update Copyright to 2025 (#3515)
  • capture_output: do not output to captured file descriptors (#3537, #3560)
  • calc_variable_from_constraint: guard against expression overflow (#3541)
  • Standardize the usage of pyomo.environ imports (#3545)
  • Update ASL CMake builders (#3548)
  • Support passing LoggerAdapter objects to LogStream (#3547)
• Core
  • Support multi-column DataFrames in Initializer (#3552)
  • Multiple dispatch for relational expression generation (#3483)
  • Type check exception args in component __call__ implementations (#3538)
• Documentation
  • Move RTD ads to the sidebar (#3536)
  • Standardize Example Imports (#3543)
  • LD-SDA Documentation (#3539)
  • Fix broken URLs in documentation (#3529, #3544)
  • Update future solver interface documentation (#3526)
  • Document BlockData.clone (#3542)
• Solver Interfaces
  • Fix bug in XpressPersistent.update_var (#3566)
  • Avoid duplicate AMPLFUNC entries in ipopt_v2 (#3554)
  • Update deprecation warnings in contrib.solver (#3553, #3555)
  • Support for upcoming knitro python package (#3478)
  • Future solver interface reorganization and updates (#3476)
  • Update HiGHS interface to allow keyboard interrupts (#3509, #3511)
  • Fix/extend MOSEK option handling (#3488)
• Testing
  • Defer pathlib import, remove test output file (#3563)
  • Add IDAES Solvers to Mac; Update to Ubuntu 22.04 (#3556)
  • Clean up numeric_expr dispatcher test driver (#3551)
  • Testing and coverage fixes (#3549)
  • Resolve intermittent test failure (increase sleep time) (#3517)
  • Be more careful when/how we timeout conda install (#3514)
• Contributed Packages
  • cspline_external: Add a function for cubic spline interpolation (#3216)
  • DoE: Correct initialization when using lower diagonal of FIM (#3532)
  • FBBT: Resolve bug registering native type handlers (#3567)
  • parmest/DoE: Ordering and param bug fixes (#3512)
  • PyNumero: Add support for greybox models (#3364)
  • PyROS: Modify Decision Rule Order Efficiency (#3562)
  • PyROS: Revise second-stage equality reformulation under discrete
    (scenario-based) uncertainty (#3533)
  • PyROS: Add Uncertain Parameter Reduction (#3503)