Releases
v2.3.1
Fixed bugs
DominatedCols: compress set of dominations topologically to avert memory exhaustions
Input and Output: handle floating point numbers precisely in parsers and writers
OPB-Parser: handle additional whitespaces
ParallelColDetection: only merge integral parallel columns for integral column scale
ParallelColDetection: reduce complexity of hole detection for integral parallel columns
Probing: eliminate computational overhead in row propagation
Propagation: handle constraint propagation more carefully by applying feasibility instead of epsilon tolerance
SimpleSubstitution: correct feasibility tolerances on euclidean coprime substitutions
SingletonCols: order effective side changes to avoid invalid infeasibility
SingletonStuffing: normalize and order sides to avoid invalid infeasibility
Statistics: avoid counting calls of symmetry extensions additionally
Trivial: mark activity redundancy in trivial row presolving
Build system
fixed build against HiGHS 1.7.2
TBB is now no longer download automatically; to enable the download, set option TBB_DOWNLOAD to on
added check whether linking of libatomic is necessary and possible to make std::atomic available
Known issues
SingletonCols: normalize if substituting constraint in the objective (when dual-postsolve is active)
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