COPT 6.0.3
==========
Introduced LPMETHOD=5 which chooses the best LP solver automatically
Improved performance and stability of barrier LP solver
Improved the LP presolver
Fixed bugs in LP presolver
Fixed a performance issue of MIP solver

COPT 6.0.2
==========
Improved the LP presolver
Revised tuner behavior when the baseline MIP gap is infinite
Added support to Python 3.11
Added support to coptpy-stubs
Fixed issues in SDP solvers
Fixed other bugs and issues

COPT 6.0.1
==========
Improved performance of MISOCP solver
Improved performance of SDP solver
Improved accuracy of QP solver
Added support to cluster logging files and callbacks
Added support to user parameters in bin file formats
Added CROSSOVER=-1 which runs crossover to cleanup LP solutions
Fixed a compatible issue regarding old Linux arm64 system
Fixed other issues in MIP solvers
Revised COPT documentations

COPT 6.0.0
==========
Major components introduced in COPT 6.0
COPT MISOCP solver
COPT convex MIQP solver
COPT convex MIQCP solver
COPT Tuner

Major components introduced in previous releases
Parallelized optimization solvers:
COPT MIP solver
COPT LP barrier solver
COPT LP simplex solver
COPT SOCP solver
COPT convex QP solver
COPT convex QCP solver
COPT SDP solver
Utilities:
COPT IIS for infeasible problems
COPT Feas-Relax utility

Modeling interfaces:
Object-oriented: Python, C++, C#, Java
Third-party    : Julia, AMPL, GAMS, PuLP, Pyomo, CVXPY
C interfaces which work with matrices and vectors

Licensing and remote services:
COPT personal license
COPT server license
COPT floating token server
COPT cluster server

Supported platforms and OS:
Windows: x86
Linux  : x86 and arm64
MacOSX : x86 and arm64
