The COPASI team announces the immediate availability of the stable release COPASI 4.36 (Build 260).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This bug fix release addresses a possible vulnerability in XML parsing through the billion laughs attack:

Release Date: May 16, 2022

More information can be found in the changelog.

The COPASI team announces the immediate availability of the stable release COPASI 4.35 (Build 258).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This is mainly bug fix release addressing some issues in COPASI 4.34 (Build 251):

Release Date: March 15, 2022

More information can be found in the changelog.

The COPASI team announces the immediate availability of the stable release COPASI 4.34 (Build 251).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This is urgent bug fix release some issue in COPASI 4.33 (Build 246):

Release Date: August 12, 2021

More information can be found in the changelog.

The COPASI team announces the immediate availability of the stable release COPASI 4.33 (Build 246).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This is an urgent bug fix release resolving an issue in COPASI 4.32 (Build 245):

Bug Fixes

• Simulation Engine
  • Fixed problem for models with species of type ODE, for which no simulation or analysis was possible.

Release Date: June 17, 2021

More information can be found in the changelog.

The COPASI team announces the immediate availability of the stable release COPASI 4.32 (Build 245).

A new release of COPASI has been made available. Please visit our free download page to retrieve this latest development release. Please note this version is released under the Artistic License 2.0, which is an OSI approved license. This license allows non-commercial and commercial use free of charge. This is primarily a bug fix release but has a few new features: