Platforms
- Drop Fedora [33,36] (EOL).
- Drop Centos 8.
- Drop Debian 10.
- Drop Ubuntu 18.04 LTS.
- Drop Python 3.7 support (EOL).
- Disable .Net Core 3.1 (EOL)
Dependencies
- ZLIB
1.2.13. - abseil-cpp
20230125.3. - Protobuf
v21.12->v23.3. - re2
2023-07-01. - googletest
v1.13.0. - Java JNA
5.12.1->5.13.0.
Bazel
- Require Bazel 6+.
- Update rules, fix build.
- rules_jvm_external:
4.5->5.2 - contrib_rules_jvm:
0.9.0->0.9.0 - rules_python:
0.20.0->0.23.1
- rules_jvm_external:
Graphs
- Deep Rework.
Model Builder python
- Allow use of Pandas dataframes and series to create variables.
- see assignment
- see bin_packing
- Complete typing information
PDLP
- various update.
CP-SAT
- Performance improvements. (feasibility_jump, lin_max)
- Improve cut management
- New
objective_shaving_searchworker dedicated to improving the lower bound of the objective (when minimizing) - Typing annotations for the python cp_model.py
- Experimental partial support for pandas in cp_model.py
- see assignment
- see bin_packing
- Experimental local search violation based workers:
- enabled with parameters: num_violation_ls:xxx
- optimized for linear model (linear, bool_or, bool_and, at_most_one, exactly_one)
- works correctly with lin_max, product, division
- supports no_overlap, cumulative, circuit, routes
- disabled with no_overlap_2d
- recommended number of ls workers: num_workers -> num_violation_ls (8, 1), (16, 2) (24, 3), (32, 4)
What's Changed
- Ignore the close error when reading fails in file.cc by @ciarand in #3717
- Fix reference to solve_wrapper in Solve method by @djsilcock in #3719
- ensure absolute native library path in Java Loader by @afloren in #3728
- Allow last_variable_index_ to be zero by @rajgoel in #3758
- Xpress fixes by @djunglas in #3576
- Update cplex_interface.cc by @Robot-1x in #3764 #3766
- feat(python): unignore Solver::TopProgressPercent and SearchMonitor::… by @bertuccellimatteo in #3831
- Evaluate LinearExp for the found solution by @koen-lee in #3837
- Fix CMake build in
testsubdirectories by @lnikkila in #3845 - Python CP-SAT type hints by @stradivari96 in #3668
- Fix RUNPATHs for libraries and executables by @StefanBruens in #3383
New Contributors
- @ciarand made their first contribution in #3717
- @djsilcock made their first contribution in #3719
- @afloren made their first contribution in #3728
- @rajgoel made their first contribution in #3758
- @djunglas made their first contribution in #3576
- @Robot-1x made their first contribution in #3764
- @bertuccellimatteo made their first contribution in #3831
Full Changelog: v9.6...v9.7