We are pleased to announce that Dymola 2026x Refresh 1 will be released on Friday, 17 April 2026. Summary of key features:

Model development

• Icons in the variable browser. Makes browsing of the simulation result easier.
• LEO virtual companion (AI) for model development and analysis, requires integration with 3DEXPERIENCE (Beta).

Simulation

• Integrated calibration of model parameters (new user interface).
• Parameter sweep with grouping.
• Dynamic optimization of FMUs using e.g. CasADi (Beta).

Other

• Library improvements.
• Integrated eFMI production code generation. Code generation on cloud not needed.
• Upgraded FLEXnet license server with recent security patches.
   

See also: https://www.3ds.com/products/catia/dymola/latest-release