We are pleased to announce that Dymola 2026x will be released on Friday, 28 November 2025. Summary of key features:

Libraries

• Sustainable Supply Systems Library
• Modelica Standard library 4.1.0

Simulation

• Reduced size of Modelica FMU wrapper
• More efficient code generation for arrays
• Analytical adjoint derivatives for the ODE problem

Model development

• Text editor: select a variable and open its definition 

Video with key highlights:

Presentation of highlights: