File Compatibility

  • Astah files are forward compatible. If files are edited by a newer version, they cannot be opened in an older version of Astah.
  • Each version of Astah has a number called “Model Version“. Every file you create with Astah will have “Model Version” which helps you find which version of Astah can handle this file.
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How to find the model version

  1. Launch Astah and go to [Help] – [Version Information] from Main Menu.
    Astah Help Menu

  2. [Version Information] dialog appears to tell you which version of Astah you are using.
    How to check model version
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Astah Pro, UML, and Viewer

Model Version373839
Astah Professiona6.9, 7.0, 7.1, 7.28.0, 8.1, 8.28.3
Astah UML7.28.0, 8.1, 8.28.3
Astah Viewer-8.1, 8.28.3
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Astah System Safety

Files created with Astah System Safety are not compatible with other Astah Products.

Model Version456
Astah System Safety's Version3.04.05.0
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Astah SysML

  • Currently, all version of Astah SyML has the same model version (40).
  • Files created with Astah SysML are not compatible with other Astah Products.
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Astah GSN

  • Currently, all version of Astah GSN has the same model version (39).
  • Files created with Astah GSN are not compatible with other Astah Products.