COMSOL Multiphysics 5.3 COMSOL Multiphysics® version 5.3 provides you with notable performance improvements as compared to earlier versions. You will experience speedup by a factor of up to ten in software responsiveness, as well as new and improved features for solving, meshing, and the physics-based add-on modules. Version 5.3 makes it more efficient to create models and deploy and run apps. We have summarized the major news in COMSOL® software version 5.3 for you on this page. Browse the menu to the left for information about specific add-on products and more details on core functionality updates. Ready to update COMSOL Multiphysics®? Click on the Download Version 5.3 button, which will take you to the Product Download page. It is easy to download the latest version of the COMSOL® software if you have a COMSOL Access account with your license number linked to it. Simply log in and follow the onscreen product download directions. Free Webinar: Introducing COMSOL Multiphysics® and COMSOL Server™ 5.3 COMSOL Multiphysics® Software Performance Improvements COMSOL Multiphysics® version 5.3 provides significant performance improvements as compared to version 5.2a and earlier versions. These are most noticeable when working with models made up of a variety of several thousand domains, boundaries, edges, and points.