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Modelica 3.4 Specification Released

The Modelica language specification 3.4 was released in April 2017. The specification text is available in the documents page or directly here in pdf format.

Main Changes in Modelica 3.4

The following backward compatible extensions have been introduced with Modelica 3.4:

  • Automatic conversions between different versions.
  • Flattening is clearly specified.
  • Convert from Integer to Enumeration.
  • Explicitly casting a Model to Record.
  • Initialization of Clocked Continuous States.
  • An added option to Ellipse Annotation to draw only an arc.
  • Allowing mixed Real and non-Real Record Derivatives.
  • Refinement of pure/impure functions in particular to restore backwards compatibility with Modelica 3.2.
  • Additionally, about 120 minor improvements were made.
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