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# PuLP, Copyright J.S. Roy (js@jeannot.org), 2002-2005
# Copyright S.A.Mitchell (s.mitchell@auckland.ac.nz), 2007-
# Copyright F.Peschiera (pchtsp@gmail.com), 2019-
# See the LICENSE file for copyright information.
2.7.0
added HiGHS solver
added pysmps dependency for mps parsing
2.6.0 2021-12-04
dropped packaged choco
fixed bugs
deprecated 'indexs' parameter LpVariable dicts and matrix
2.5.1 2021-09-28
updated docs
fixed minor issues
cbc now uses wall-time for timeLimit
2.5.0 2021-08-11
measuring wall time and cpu time
unittests of timeLimit
black formatting
refactored tests per solver
dropped support for CPLEX_DLL
2.4 2020-12-22
added mps reading support
updated docs
fix bug with no objective in prob.toDict()
2.3.1 2020-10-22
change naming of solver utility functions to camelcase
fixed gurobi license detection
fixed scip options and added timeLimit argument
changed docs
2.3 2020-08-04
Added plugin page in docs
Standardize arguments of solvers to appear in docs
Fixes to import and export of LpProblem and solver
Added warm start to GUROBI
2.2 2020-04-06
Contribution files
Standard arguments: logPath, gapRel, gapAbs
Import and export solver objects
Import and export LpProblem
Took out amply to its own package
Standard tmp file handling in _CMD solvers
Refactored writeMPS
2.1 2020-04-06
Added MOSEK solver
New documentation
Put tests inside package
Added warm start to CPLEX_PY
2.0 2019-11-23
Restructured solvers code
Added unittests package
Added CHOCO solver
Added warm start for CBC_CMD, GUROBI_CMD, CPLEX_CMD
Automated deploy
1.6.1, 2015-12-25
Fix for dummy variables
1.5.4, 2013-03-18
Added cbc support for osx (hopefully)
1.4.9, 2011-03-30
Added support for cplex runtime licenses
Made PULP_CBC_CMD the default LP solver for linux
Included 32 and 64 bit versions of cbc
1.4.8, 2011-03-30
Overdue fix for zero coeff issue
bugfix for default cat for LpVariable.dicts
moved tests to a different file
1.4.6, 2010-01-25
Bugfix
1.4.4, 2010-01-24
CBC 2.4 cmd line solver added
CoinMP dll 1.4.0 uses trunk version
CoinMP library object now accessed through COINMP_DLL.lib
Config files now include a %(here)s syntax to identify paths
Included solvers now moved to solvers directory
1.4.2, 2009-12-31
Fixes before coin Announcement
1.4.0, 2009-10-16
Added Elastic Constraints
Added Fractional Constraints (tests yet to be added)
Added limited resolve for gurobi
Changed version numbers for coin import
Fixed COIN_CMD
Changed code to be compatible with python 2.4
1.3.08, 2009-08-08
Bugfix COINMP_DLL
1.3.07, 2009/06/26
Changes for pypi
1.3.01, 2009/06/25
Made constraints ordered dictionaries
Small changes to parameters of COIN_DLL solver
Removed string exceptions
added the constraints from other LpProblems to LpProblem.extend()
1.3.00, 2009/06/21
Added GUROBI Solver
1.23, 2009/05/25
Removed old style MEM solvers
Cleaned up CPLEX_DLL interface
Added Sequential solve function
1.22, 2009/04/03
Added Cplex IntegerOptimalTolerence setMemoryEmphsis, and clarified linux
installation instructions
1.21.02, 2008/07/29
Added epagap, and logfile in CPLEX_DLL
1.21, 2008/07/28
Added Combination and Permutation functions
Bugfix for configsolvers
Updated setup.py to start to compile everything
1.20, 2008/06/08
Certified for inclusion in Coin-Or
Spilt the solver and constant definitions into separate files
Unit Tests make more explicit
Included external definitions for CoinMP.dll
No Makefile
1.11, 2008/03/01
Contributed by Stuart Mitchell s.mitchell@auckland.ac.nz.
Contains dll solvers that are accessed with the ctypes library.
Can use the CoinMP.dll solver from the coin-or project.
Added column-wise modelling and resolve capabilities.
Wiki added with plenty of examples aphi038@ec.auckland.ac.nz
1.9, 2007/08/06:
Stuart Mitchell
Added support for cplex 10.1.0 using ctypes library
Added support for the CoinMP.dll using ctypes library
Added distutils setup
Added a configuaration file pulp.cfg
1.1, 2005/05/03:
Fix an strange interpretation of unbounded integer variables by COIN and CPLEX
LP return codes are simplified.
C interface modules for GLPK, COIN and CPLEX
Windows compatibility
1.0, 2004/02/29: First release
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