COPT 6.5.3
==========
Fixed an issue regarding QP presolver.
Fixed a minor issue in MIP solver.

COPT 6.5.2
==========
Fixed an issue regarding lazy constraints.
Fixed an issue regarding SOC dual.
Fixed an issue in python interface.
Fixed a non-deterministic behavior.
Fixed other bugs and issues.
Unified Python examples programming styles.
Revised Chinese and English documentations.

COPT 6.5.1
==========
Added general constraints support in COPT Python API, including:
  MAX, MIN, ABS, AND, OR and PWL.
Added callback examples.
Fixed memory issues in C# and Java interfaces.
Fixed bugs in MIP presolver.
Fixed other bugs and issues.
Revised Chinese and English documentations.

COPT 6.5.0
==========
Major components introduced in COPT 6.5
COPT callback functionality for lazy constraints and user cuts
Enhanced indicator and SOS support

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

Modeling interfaces:
Object-oriented: Python, C++, C#, Java
Third-party    : Julia, AIMMS, 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
