Open CASCADE Technology 5.1.3 maintenance release


Dear Users of Open CASCADE Technology !

Open CASCADE SA is pleased to announce that the Open CASCADE Technology 5.1.3 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:
- Two more Open CASCADE Technology algorithms (Local Operations and 3D Offsets)
have been ported to New Boolean Operations thereby gaining better quality and reliability.
- Text output capabilities of Open CASCADE 3D viewer (Windows platform only)
have been extended with the possibility to use texture-mapped fonts as an alternative to traditional bitmap fonts.
- A patch has been applied allowing to read information about materials and geometric dimensions
and tolerance from STEP files using the XDE reader.

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 5.1.3.

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