v1.20.1

HiGHS v1.20.1

Diff since v1.20.0

Merged pull requests:

• Relax test_NodeCount (#306) (@odow)
• Ensure matrix is rowwise before computing the IIS (#309) (@odow)
• Fix get ConstraintFunction to ensure rowwise (#310) (@odow)
• Prep for v1.20.1 (#311) (@odow)

Closed issues:

• Row queries (#307)

v1.20.0

HiGHS v1.20.0

Diff since v1.19.3

Merged pull requests:

• Update to [email protected] (#304) (@odow)
• Prep for v1.20.0 (#305) (@odow)

v1.19.3

HiGHS v1.19.3

Diff since v1.19.2

Merged pull requests:

• Fix projecting primal start onto binary variable bounds (#303) (@odow)

v1.19.2

HiGHS v1.19.2

Diff since v1.19.1

Merged pull requests:

• Fix Highs_setSparseSolution when start outside bounds (#302) (@odow)

v1.19.1

HiGHS v1.19.1

Diff since v1.19.0

Merged pull requests:

• Relax test_continuous_objective_bound comparison (#297) (@odow)
• Use Highs_setSparseSolution for primal starts (#300) (@odow)
• Prep for v1.19.1 (#301) (@odow)

Closed issues:

• Simple convex QP cannot be solved (#296)
• HiGHS does not reuse previous solution when objective function is changed (#298)
• Use setSparseSolution (#299)

v1.19.0

HiGHS v1.19.0

Diff since v1.18.2

Merged pull requests:

• Add MathOptIIS (#285) (@joaquimg)
• Prep for v1.19.0 (#295) (@odow)

Closed issues:

• Add a concurrent optimizer (#290)
• An infeasibility that seems to be dependent on the state of HiGHS (or JuMP) (#294)

v1.18.2

HiGHS v1.18.2

Diff since v1.18.1

Merged pull requests:

• Disable kHighsCallbackSimplexInterrupt in default callback (#292) (@odow)
• Prep for v1.18.2 (#293) (@odow)

Closed issues:

• Updating to 1.18.0 (or 1.18.1) slows down optimization considerably (#291)

v1.18.1

HiGHS v1.18.1

Diff since v1.18.0

Merged pull requests:

• Fix gen/libhighs.jl to point to the latest commit (#284) (@odow)
• Add a citation to the README.md (#286) (@odow)
• Fix issue 287 (#288) (@odow)
• Prep for v1.18.1 (#289) (@odow)

Closed issues:

• Infeasible model but primal feasible point (#287)

v1.18.0

HiGHS v1.18.0

Diff since v1.17.0

Merged pull requests:

• Update to [email protected] (#281) (@odow)
• Prep for v1.18.0 (#282) (@odow)
• Add gen/prologue.jl to simplify rebuilding C API (#283) (@odow)

Closed issues:

• Adding the C++ class of callback function to JuMP model ? (#280)

v1.17.0

HiGHS v1.17.0

Diff since v1.16.0

Merged pull requests:

• Pass names to the solver in HiGHS.Optimizer (#276) (@odow)
• Fix typo in README.md (#277) (@odow)
• Prep for v1.17.0 (#279) (@odow)

Closed issues:

• InexactError when solving a mixed integer programming problem (#278)