Beta Update 2 Public - build 423 (January 2010)
    General:
    - Added Command Line Interface (CLI) mode which enables translation in batch mode. Start
      'CAD Exchanger Command Prompt' from the Start menu or invoke 'ExchangerConv.exe --help'
      to get usage details.
    - Added CAD Exchanger Software Development Kit (SDK) which enables integration of CAD
      Exchanger software libraries into customer applications. For details please contact
      info@cadexchanger.com.
    - Improved performance of computation of surface model triangulations; this affects import,
      changing display modes and changing triangulation precision operations. Additional gain
      can be received on multi-core systems due to execution in parallel threads.
    GUI:
    - Slightly improved visual settings for more stylish appearance of 3D models.
    - Added export of 3D view contents to PNG and BMP formats.
    - Added option to apply multi-threading for computation-intensive algorithms (currently
      affects triangulation computation only).
    ACIS-SAT format:
    - Added support of colors to import and export.
    - Exporter now has a user-defined option to specify target ACIS format version (from 2.0
      to 20.0)

Beta Update 2 Invitational - build 371 (Dec 2009)
    ACIS-SAT format:
    - Added support for transformations with reflection, shear and scaling.
    - Added support for variable radius blend surfaces with round_chamfer and rotated_ellipse
      radius types.
    - Added processing of blend support of the blendsupzro type.
    - Improved processing of coedges using pcurves sub-ranges and/or when 3d curve and pcurve
      use different parametrization ranges

Beta Update 2 Invitational - build 359 (Nov 2009)
    - Fixed a bug of losing gradient background in 3D view after closing a
      neighbor document
    - Improved performance of importers and exporters.
    - ACIS-SAT: added ACIS-SAT import and export. Current scope includes geometry
      only. For additional limitations refer to Release Notes.
    - STL: fixed bug in writing binary files which prevented correct reading by
      some STL viewers.

Beta Update 1 (July 2009)
    - New display mode - triangulation. Displays underlying triangulation of
      surface models; equivalent to wireframe mode for mesh models.
    - Ability to change precision of the surface models triangulation. This
      parameter affects visualization quality and conversion of the surface
      models into mesh formats (such as STL, VRML, etc)
    - VRML 2.0 (1997) export is now supported. Current scope includes
      geometry only.
    - BRep importer now always ignores stored triangulation and uses
      user-defined value of the triangulation precision.
    - BRep and STL exporters now do not export hidden models (i.e. unchecked
      in the Model Explorer). IGES and STEP exporters still export them.
    - Automatic checking for updates. User will be automatically notified when
      new product releases become available.
    - Skipping invisible (blank) entities when importing IGES files at user's
      discretion.

Beta (April 2009)
    - Initial release