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upper bounds on integer variables in MPSX file

Bug

MIP

Status: Open.

#2997 In ERGO-Code/HiGHS;

· tonyhur opened on May 1, 2026

assert fails when presolving

Bug

MIP Presolve

Status: Open.

#2993 In ERGO-Code/HiGHS;

· markvp-hs opened on Apr 27, 2026

Parallel dual simplex (PAMI) stalls indefinitely

Bug

LP

Parallel

Simplex

Status: Open.

#2991 In ERGO-Code/HiGHS;

· jkiviluo opened on Apr 24, 2026

HiGHS 1.14.0 Solves Equality-Constrained QP but declares small infeasibilities when other QP solvers do not?

QP

Status: Open.

#2973 In ERGO-Code/HiGHS;

· jeffreydeankelly2 opened on Apr 16, 2026

C# NuGet package doesn't expose Highs_changeObjectiveOffset

C#

EnhancementNew feature or requestNew feature or request

Status: Open.

#2970 In ERGO-Code/HiGHS;

· ethylon opened on Apr 14, 2026

highs.dll in NuGet package is dynamically linked to Visual C++ library

Build

Status: Open.

#2968 In ERGO-Code/HiGHS;

· ap5d opened on Apr 13, 2026

highs.dll in NuGet package not copied to output directory automatically

Build

Status: Open.

#2967 In ERGO-Code/HiGHS;

· ap5d opened on Apr 13, 2026

Crash on windows

Build

Status: Open.

#2964 In ERGO-Code/HiGHS;

· RobbieKiwi opened on Apr 11, 2026

HiGHS LP file reader should return an error when it encounters constraints that are not linear

Bug

LP file reader

Status: Open.

#2953 In ERGO-Code/HiGHS;

· LocatedInSpace opened on Apr 5, 2026

Make bail-out from dependent equations rule deterministic

EnhancementNew feature or requestNew feature or request

LP presolve

Status: Open.

#2949 In ERGO-Code/HiGHS;

· jajhall opened on Apr 3, 2026

c# nuget packing missing setBasis

C#

EnhancementNew feature or requestNew feature or request

Status: Open.

#2926 In ERGO-Code/HiGHS;

· EEParker opened on Mar 19, 2026

Wrap active set QP and simplex in try-catch blocks

Code-quality

LP

QP

Simplex

Status: Open.

#2924 In ERGO-Code/HiGHS;

· jajhall opened on Mar 18, 2026