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Ready for release 1.9.0#2091

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galabovaa merged 134 commits intomasterERGO-Code/HiGHS:masterfrom latestERGO-Code/HiGHS:latestCopy head branch name to clipboardDec 21, 2024

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Commits

Commits on Nov 13, 2024

• Add util for free column substitution

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• Use HPRESOLVE_CHECKED_CALL

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Commits on Nov 14, 2024

• Add utility for detecting dominated columns

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• Use new utility and add some comments

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• Merge branch 'domColUtil3' of https://github.com/fwesselm/HiGHS into domColAndFreeColSubstUtils

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Commits on Nov 15, 2024

• Fix incorrect checks against kHighsInf

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• Merge pull request #2039 from fwesselm/domColAndFreeColSubstUtils

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• Added unit test for ceil failure

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• Investigating

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Commits on Nov 17, 2024

• Simplify a little more

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Commits on Nov 18, 2024

• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into signErrors

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• Treating |x|<1 as a special case in floor(HighsCDouble x) and ceil(HighsCDouble x)

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• PDLP gets 5.5018458957e+03 not 5.50184588e+03 on windows_debug64

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• Merge pull request #2043 from ERGO-Code/fix-2041

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• Merge pull request #2040 from fwesselm/signErrors

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Commits on Nov 19, 2024

• Try to simplify parallel row and column detection

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• Created writeLocalModel unit test, assessHessianDimensions, and fixed bug in lpDimensionsOk

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• Added tests for starts and indices to HighsSparseMatrix, and using them in writeLocalModel

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• Merge pull request #2048 from ERGO-Code/fix-2047

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Commits on Nov 20, 2024

• Added HighsLinearObjective struct and vector of such as member of Highs class; added blend_multi_objectives option

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• Renamed Highs::run() to Highs::solve(), and created Highs::run() that currently just returns Highs::solve()

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• Formatted

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• Created Highs::passLinearObjectives Highs::addLinearObjective Highs::clearLinearObjectives, and unit test in TestMultipleObjective.cpp

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• Added check/TestMultiObjective.cpp and check/TestHighsCDouble.cpp

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Commits on Nov 21, 2024

• Need to define solution, info and model status after lexicographic optimization, and prevent equal priorities

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• Repeated priorities illegal; needs more testing

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• More unit tests of multi-objective optimization

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Commits on Nov 22, 2024

• Before removing dev printing

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• Removed dev logging; formatted

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• WIP

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• Merge branch 'master' into fix-1873

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• Started modifying documentation

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• Corrected make.jl and format in HighsOptions.h

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• Added docs/src/structures/structs

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• Added Structures to make.jl

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• Added some maths

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• Removed some unnecessary commas?

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• Use the solution of one MIP to provide an integer feasible solution of the next in lexicographic optimization

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• Finished first draft of documentation; add C and Python API

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• Debugging the C API for multi-objective optimization

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Commits on Nov 23, 2024

• Added C API and logging during multi-objective optimization

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• highspy API for multi-objective optimization is done and checked; formatted

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• Merge pull request #2053 from ERGO-Code/fix-1873

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Commits on Nov 25, 2024

• Fix transformation

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• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into fix-1954

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• Removed Highs_addLinearObjectiveWithIndex from C API, and added docstrings for other multiple linear objective methods

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• Fix if-block

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• Fix typo

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• Hopefully corrected further.md

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• New hope to correct further.md

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• Again... new hope to correct further.md

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• More... again... new hope to correct further.md

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• Merge pull request #2057 from ERGO-Code/fix-1873

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• Added examples/knapsack.py to illustrate setSolution in highspy

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• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into fix-1954

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• fix constructor initialization order

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• fix missing prior declartion of public function

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• Merge pull request #2061 from ERGO-Code/fix-compiler-warnings

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Commits on Nov 26, 2024

• Add an assertion

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• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into fix-1954

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• Store indices in set instead of manipulating bound type

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• Fix index error

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• Restructure a little bit

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Commits on Nov 27, 2024

• Minor changes to loop

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• Simplify

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• MAINT: declare that highspy._core supports free-threaded CPython

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• Merge pull request #2063 from rgommers/nogil-safe-upstream

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Commits on Nov 28, 2024

• First draft of HighsSimplexStats

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• HighsSimplexStats struct gives data about last simplex solve

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• Merge pull request #2064 from ERGO-Code/simplex-stats

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Commits on Dec 2, 2024

• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into fix-1954

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Commits on Dec 3, 2024

• Fix issue #2025

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• fix-2025

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• Merge pull request #2066 from fwesselm/fix-1954

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• Merge pull request #2067 from quantresearch1/fix-2025

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Commits on Dec 4, 2024

• WIP

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• fix comment

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• Add one more utility

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• Add another small utility to simplify code

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• Add some more comments

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• Merge pull request #2068 from ERGO-Code/fix-2025

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Commits on Dec 5, 2024

• fix #2017

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Commits on Dec 6, 2024

• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into refactorCutGen

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• Add comment

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• Merge pull request #2073 from quantresearch1/fix-2017

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Commits on Dec 9, 2024

• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into refactorCutGen

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• Use const

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Commits on Dec 10, 2024

• Added an assertion

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Commits on Dec 11, 2024

• Fix include file

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• Merge pull request #2079 from fwesselm/fixInclude

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• Fix detection of implied integral (already integer-constrained) variables and implicit (continuous) integer variables

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• Fix comment

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• Minor change

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Commits on Dec 12, 2024

• Revert checking of all rows and add comments

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• Simplify two loops

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• Minor change

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Commits on Dec 13, 2024

• Use const reference

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• Merge pull request #2082 from fwesselm/simplifyTwoLoops

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Commits on Dec 16, 2024

• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into refactorCutGen

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• test sdist testpypi

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• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into minorPresolveIssues

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• Merge pull request #2085 from fwesselm/refactorCutGen

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• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into minorPresolveIssues

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Commits on Dec 17, 2024

• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into simplifyParallelRed

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• Lambda for removing doubleton eqs in row presolve

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• Merge pull request #2086 from fwesselm/minorPresolveIssues

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Commits on Dec 18, 2024

• Merge branch 'latest' of https://github.com/ERGO-Code/HiGHS into remDoubletonEq

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Commits on Dec 19, 2024

• Merge branch 'simplifyParallelRed' of https://github.com/fwesselm/HiGHS into twoMorePresolveUtils

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• Merge branch 'latest' into sdist

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• added sdist to build workflows and also a test for all three OS

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• fix action from last month

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• sdist

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• explicit ninja for build

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• regex

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• testing scripts

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• sdist clean up

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• pyproject and tests

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• test

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• Merge pull request #2088 from fwesselm/twoMorePresolveUtils

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• tests and bazel

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Commits on Dec 20, 2024

• bazel test

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• iteration test and ninja to CI

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• venv mac

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• mac venv and testpypi

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• sdist macos

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• clean up

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• Silenced bin/unit_tests

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• Silenced MIP-Timing logging unless mipsolver.analysis_.analyse_mip_time is true; formatted

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• Merge pull request #2089 from ERGO-Code/sdist

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• version bump

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• testPypi

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• highspy already on pypi, disable push wheel workflow until the next release.

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• add sdist to Features.md for release tag

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• Merge pull request #2090 from ERGO-Code/version-bump

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