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:

The COPASI team announces the immediate availability of the stable release COPASI 4.31 (Build 243).

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:

The COPASI team announces the immediate availability of the stable release COPASI 4.30 (Build 240).

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 release has several new features:

Profiling COPASI’s speed in versions 4.16 through to 4.30

Abstract

Recent changes to COPASI source code have resulted in a general performance increase. The aim of this work is to quantify the effective speed gains achieved in different simulation and analysis tasks. This is done by using specific models that challenge these tasks and are especially long to execute. This set of models and tasks will be useful for future comparisons to continue documenting the evolution of the software performance. COPASI version 4.30 is significantly faster than the previous release, 4.28, particularly in the most often used tasks: time course integration and steady state solution. It was also found that relative to version 4.16 (from August 2015) it can be several fold faster, thus users are urged to update to version 4.30.