The COPASI team announces the immediate availability of the development release COPASI 4.2.23 (development).

A new development release of COPASI has been made available. Please visit our non-commercial or commercial pages to download the latest development release.

COPASI 4.2.23 (development) has the following new features:

• Metabolites may now be changed through arbitrary ODEs and assignments.
• Compartment volumes may now be dynamically changed through ODEs and assignments.
• SBML support for import/export of all assignment and rate rules.
• New tool to check rate laws for inconsistencies and errors.

In addition several bugs have been fixed, a full list can be found in the changelog.