VCell versions

v5.2 beta [Jul 10, 2014]
- Hybrid spatial stochastic solver combines particle based dynamics of certain species with reaction diffusion equations of other species within a single simulation. (For example, local activation of channel activity may be modeled stochastically while the flux of ions through the channel may be simulated deterministically.)
- Constructive Solid Geometry (building a complex geometry from simple shapes)
- Full support of arbitrary units (without resorting to base SI units for unrecognized derived units).
- Parameter estimation bug fixes and improvements
- More compact user interface for smaller displays
- Improved Pathway Model usability and interoperability with Pathway Commons, BioModels.net, and SABIO-RK databases.

v5.1 [Jun 19, 2013]
- Integrated Virtual FRAP - Simulation Assisted Analysis of FRAP Experiments.
- Modeling FRAP data under various assumptions (diffusion only, effective diffusion, reaction off rate).
- Parameter estimation using spatial temporal informaiton.
- Parameter identifiability verification using profile likelihood.
- Intuitive wizard based work flow to manipulate FRAP data.
- New Parameter Estimation Capability based on COPASI technology.
- Global and local solvers.
- Able to run through VCell interface.
- Quick-run simulations on your computer.
- Nonspatial-deterministic simulation (local ODE solver).
- Spatial-deterministic simulation (local PDE solver).
- Nonspatial-stochastic simulation (local Gibson-Bruck and hybrid solvers).
- Spatial-stochastic simulation (local Smoldyn solver).
- Support for surface-based 3D geometry import (STL format).