Open CASCADE Technology 5.2.1 maintenance release


Dear Users of Open CASCADE Technology !

Open CASCADE SA is pleased to announce that the Open CASCADE Technology 5.2.1 maintenance release is now available to our customers. Regular maintenance releases, being a special privilege to our customers, feature fixes of customers problems and all up-to-date modifications.

Technical highlights:
- Color scale has been implemented in Open CASCADE 3D Viewer.
- The mechanism of system exceptions and signals handling has been improved.
- More convenient use of texture mapped fonts on Windows.
- Performance improvements in mesh visualization services (MeshVS package).

For complete details on new features, improvements and bug fixes of this maintenance release please refer to its Release Notes available at

As usual, all modifications and improvements will be available to the Community in the next public version of Open CASCADE Technology.

The users of our Advanced components ( will soon receive a notification about availability of the latest updates of these components built for Open CASCADE Technology 5.2.1.

If you are our customer and it happens that you have not received our private announcement with download instructions, please do not hesitate to contact us at

Sincerely yours,
Open CASCADE Support Team