HiGHS is a high performance serial and parallel solver for large scale sparse
linear optimization problems of the form
```
Minimize (1/2) x^TQx + c^Tx subject to L <= Ax <= U; l <= x <= u
```
where `Q` must be positive semi-definite and, if `Q` is zero, there may be a
requirement that some of the variables take integer values. Thus HiGHS can
solve linear programming (LP) problems, convex quadratic programming (QP)
problems, and mixed integer programming (MIP) problems. It is mainly written
in C++, but also has some C.
HiGHS has primal and dual revised simplex solvers, originally written by Qi
Huangfu and further developed by Julian Hall. It also has an interior point
solver for LP written by Lukas Schork, an active set solver for QP written by
Michael Feldmeier, and a MIP solver written by Leona Gottwald. Other features
have been added by Julian Hall and Ivet Galabova, who manages the software
engineering of HiGHS and interfaces to C, C#, FORTRAN, Julia and Python.
Although HiGHS is freely available under the MIT license, we would be pleased
to learn about users' experience and give advice via email sent to
highsopt@gmail.com.
* Tue Sep 22 2026 Jerry James <loganjerry@gmail.com> - 1.15.1-4
- Fix the zlib dependency
* Wed Jul 22 2026 Python Maint <python-maint@redhat.com> - 1.15.1-3
- Rebuilt for Python 3.15.0b4 ABI change
* Wed Jul 15 2026 Fedora Release Engineering <releng@fedoraproject.org> - 1.15.1-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild
* Tue Jul 14 2026 Jerry James <loganjerry@gmail.com> - 1.15.1-1
- Version 1.15.1
- Bundle AMD and metis until they are updated in Rawhide
- Remove unused BuildRequires
* Thu Jun 04 2026 Python Maint <python-maint@redhat.com> - 1.14.0-5
- Rebuilt for Python 3.15
* Thu May 28 2026 Jerry James <loganjerry@gmail.com> - 1.14.0-4
- Patch courtesy of Gentoo to fix the tests on some arches
* Thu May 28 2026 Jerry James <loganjerry@gmail.com> - 1.14.0-3
- Build with the boost version of pdqsort
- Run all of the tests
- BR catch 2.x instead of 3.x
- Drop unnecessary Requires from the devel subpackage
- Use the cmake declarative buildsystem
* Tue May 05 2026 Benjamin A. Beasley <code@musicinmybrain.net> - 1.14.0-2
- Backport fix for upstream issue 2957; Fixes RHBZ#2466661
* Mon Apr 06 2026 Jerry James <loganjerry@gmail.com> - 1.14.0-1
- Version 1.14.0
* Thu Feb 12 2026 Jerry James <loganjerry@gmail.com> - 1.13.1-1
- Version 1.13.1
* Wed Feb 04 2026 Jerry James <loganjerry@gmail.com> - 1.13.0-1
- Version 1.13.0
- Enable HiPO (interior point optimizer)
* Fri Jan 16 2026 Fedora Release Engineering <releng@fedoraproject.org> - 1.12.0-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild
* Fri Jan 16 2026 Fedora Release Engineering <releng@fedoraproject.org> - 1.12.0-3
- Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild
* Mon Jan 12 2026 Jerry James <loganjerry@gmail.com> - 1.12.0-2
- Reflow the description text
- Be more precise with globbing in %files
* Mon Oct 27 2025 Jerry James <loganjerry@gmail.com> - 1.12.0-1
- Version 1.12.0
* Fri Sep 19 2025 Python Maint <python-maint@redhat.com> - 1.11.0-5
- Rebuilt for Python 3.14.0rc3 bytecode
* Fri Aug 15 2025 Python Maint <python-maint@redhat.com> - 1.11.0-4
- Rebuilt for Python 3.14.0rc2 bytecode
* Wed Jul 30 2025 Jerry James <loganjerry@gmail.com> - 1.11.0-3
- Add patch to fix a build failure with pybind11 3.0
* Wed Jul 23 2025 Fedora Release Engineering <releng@fedoraproject.org> - 1.11.0-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
* Wed Jun 11 2025 Jerry James <loganjerry@gmail.com> - 1.11.0-1
- Version 1.11.0
* Wed Jun 04 2025 Python Maint <python-maint@redhat.com> - 1.10.0-2
- Rebuilt for Python 3.14
* Thu Mar 20 2025 Jerry James <loganjerry@gmail.com> - 1.10.0-1
- Version 1.10.0
- Unbundle cli11
* Thu Jan 16 2025 Fedora Release Engineering <releng@fedoraproject.org> - 1.9.0-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
* Mon Jan 13 2025 Jerry James <loganjerry@gmail.com> - 1.9.0-1
- Version 1.9.0
* Tue Dec 03 2024 Jerry James <loganjerry@gmail.com> - 1.8.1-1
- Version 1.8.1
* Sun Oct 20 2024 Jerry James <loganjerry@gmail.com> - 1.8.0-1
- Version 1.8.0
* Mon Sep 23 2024 Jerry James <loganjerry@gmail.com> - 1.7.2-4
- Unbundle pdqsort and zstr more thoroughly
- Use zlib-ng directly instead of via the compatibility interface
- Run pytest in verbose mode
