The latest version of Devotech iDAS for AutoCAD Civil 3D 2015-2020:

 Devotech iDAS 11.0.0.0 Beta 1 (released 14/05/2019)

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The latest version of Devotech iDAS for AutoCAD Civil 3D 2014-2018:

 Devotech iDAS 10.0.0.4 (released 26/07/2017)

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Latest training videos for Devotech iDAS:

 Training Videos 10.0.0.5 (released 13/10/2017)