COPASI 4.34 (Build 251)

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.

Release Date: August 12, 2021
More information can be found in the changelog.

COPASI 4.33 (Build 246)

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.

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.

COPASI 4.32 (Build 245)

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.

New Features

• Installation
  • The Linux installation support parallel installation of COPASI versions.associations.
• Language Bindings
  • Exposed SED-ML exporter.

Release Date: June 16, 2021
More information can be found in the changelog.

COPASI 4.31 (Build 243)

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.

New Features

• Installation
  • The Linux installation has been changed to a self extracting interactive archive which also creates a desktop file and registers file and URL associations.
• Language Bindings
  • Exposed the MIRIAM annotation in the language bindings.

Release Date: May 10, 2021
More information can be found in the changelog.

COPASI 4.30 (Build 240)

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.

New Features

• Graphical User Interface (CopasiUI)
  • Added intensive reaction flux to the steady-state results relevant for small compartments.
• Simulation Engine
  • Added Just In Time compilation of all user defined mathematical expression to assembler code significantly improving COPASI's performance.
• Language Bindings
  • It is now possible to capture data generated from tasks directly without using a temporary file.

Release Date: February 24, 2021
More information can be found in the changelog.

COPASI 4.29 (Build 228)

The COPASI team announces the immediate availability of the stable release COPASI 4.29 (Build 228).

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.

New Features

• Graphical User Interface (CopasiUI)
  • Time course fluxes are now shown in the layout when playing back a time course.
  • The number of reactions a species is involved in is now shown in the species table.

Release Date: August 11, 2020

More information can be found in the changelog.

COPASI 4.28 (Build 226)

The COPASI team announces the immediate availability of the stable release COPASI 4.28 (Build 226).

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.

New Features

• Graphical User Interface (CopasiUI)
  • Performance improvements while switching to tables of species and reactions or the parameter overview
    for large models through deferred loading.
  • Added line numbers to table of items in the report definition widget.
  • It is now possible to add/merge SBML models to the currently loaded model.
  • It is no possible to change the order of plot items and thus controlling the order in the legend.
• Simulation Engine
  • Added additional convergence criterion to the steady state calculation. The user can chose between
    distance, rate, or both (default).
  • Added advanced parameter to the Levenberg Marquardt method adjusting the step increase/decrease strategy.
• Language Bindings
  • The model analyzing tool is now available.

Release Date: June 12, 2020

More information can be found in the changelog.

COPASI 4.27 (Build 217)

The COPASI team announces the immediate availability of the stable release COPASI 4.27 (Build 217).

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:

• Graphical User Interface (CopasiUI)
  • Fixed missing application icon on Mac OS X.
  • In rare occasions it was possible that the COPASI file was corrupted when simultaneously checking for new updates and saving a file.
• Simulation Engine
  • Fixed a problem where COPASI incorrectly reported a steady-state due to a singular Jacobian.
  • Fixed a problem where a scan task caused an exception due to incomplete specification.

Release Date: September 14, 2019

More information can be found in the changelog.

COPASI 4.26 (Build 213)

The COPASI team announces the immediate availability of the stable release COPASI 4.26 (Build 213).

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:

• Graphical User Interface (CopasiUI)
  • Added feature to open files directly from a web page which use the link format: 'copasi://'.
  • It is to possible to specify a user selected list of time point for output in the trajectory tasks.
  • It is now possible to enable automated checks for updates of COPASI as you are used to in many other applications.
  • We added a tool to remove SBML Ids from the COPASI file which are used to facilitate referencing the original SBML Id on export. When an object was renamed the original SBML Id is preserved which is desired in most cases. However there are circumstances where this behavior is not desired. Removing the SBML Ids leads to newly created Id based on the names in COPASI.
  • A COPASI file downloaded using the 'Open URL' method has the targets of reports removed so that a malicious user cannot automatically create harmful content.
• Command-line (CopasiSE)
  • Added option to export ant import different parameterizations of the model through simple ini file.

Release Date: July 31, 2019

More information can be found in the changelog.

COPASI 4.25 (Build 207)

The COPASI team announces the immediate availability of the stable release COPASI 4.25 (Build 207).

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:

• Graphical User Interface (CopasiUI)
  • Added capability to load and save model parameter sets from files.
  • Moiety results are now displayed according to the framework, i.e. in amount units or particle numbers.
  • Added default report moiety task
  • Advanced rarely used method parameters are no hidden if they are at default setting. The user can change this behavior through the preference dialog.
  • Combine archive are can now be opened via drag and drop like all other supported formats.
  • Added additional plot type supporting banded graphs.
  • Added the capability to open files directly from an URL under the file menu.
  • Added Lyapunov exponents to the selectable result in the object selection widget.
• Command-line (CopasiSE)
  • Added option to convert the model reactions to irreversible
  • Added option to specify the task to be executed
  • Added option to override the report file name to be used.
• Language Bindings
  • The sed-ml and combine archive functionalities are now exposed in the language bindings.

Release Date: March 15, 2019

More information can be found in the changelog.