COPT 5.0.5
==========
Updated EULA files.
Added support for retrieving FeasRelax solutions.
Added parameter AbsGap for setting absolute MIP gap.
Added priority support for compute cluster.
Added support to MPS and LP files with undefined names.
Fixed an issue regarding indicator with self-references.
Fixed an issue regarding writing IIS with indicators.
Fixed an issue regarding setting IntTol below FeasTol.
Fixed an issue regarding QCP reformulation.
Fixed an edge issue where MIP objective are not always returned.
Fixed a potential issue regarding compute cluster data transmission.
Fixed other bugs and issues.

COPT 5.0.4
==========
The parameter Presolve can now be set to 0-3 to set MIP presolve effort.
Fixed issues regarding model modifications.
Fixed a performance issue in MIP presolver.
Fixed other bugs and issues.

COPT 5.0.3
==========
Fixed CPU architecture detection on Windows.
Fixed a python compatibility issue regarding COPT upgrade.
Fixed a python logging issue regarding Jupyter etc.
Fixed a variable index issue regarding nested generators in Python.
Fixed an LP initialization issue in 1 physical thread environment.
Fixed an issue regarding fractional MIP start solutions.
Fixed an issue in MIP presolver.

COPT 5.0.2
==========
Added support of extending partial MIP start solutions.
Added support of retrieving dual Farkas and primal rays.
Improved SDP symmetric matrix modeling for C++, C#, Java and Python.
Fixed a floating licensing issue regarding daylight saving time.
Fixed other issues and bugs.
Revised documentations.

COPT 5.0.1
==========
Fixed issues regarding SDP solver.
Revised documentations.

COPT 5.0.0
==========
Major components introduced in COPT 5.0
COPT SDP solver
COPT Feas-Relax utility

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
Utilities:
COPT IIS for infeasible problems

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
