Developer & QA Tools 17.5 Major : Nov 16, 2026

News & Changes

Catalogue

• Enabled the new DSI constraint logic as the default implementation while providing a fallback option for compatibility with existing content.
• Added support for modifying catalog files while they are open in CET, simplifying the development workflow.
• Added diagnostic warnings in develop mode to help developers identify situations where multiple catalogues are embedded with the same enterprise and product catalogue code.
• Improved support for catalogue-defined connectors by making DsConnectors functionality publicly accessible to extension developers
• Improved uniqueKey generation by adopting the optimized collectExportUniqueKey implementation as the default behavior, reducing memory usage and improving performance. 
• Added a new DsiPData interface for accessing custom product data associated with catalogue products. - 

License client / Web comm / Login

• Added support for IPv6 loopback addresses (in addition to IPv4 127.0.0.1) in login flows, aligning with OAuth 2.0 best practices for native apps (RFC 8252). -

Sketch&Build

• Added capability to import extrusion profiles from CAD file. 

Improvements

Bug Fixes

Catalogue

• Fixed problem in the Catalogue Permutation Tool where certain valid combinations were not generated when feature order changes affected permutation processing 
• Fixed problem in DsUILibraryLimb that did not correctly handle the invisible UI Level when building libraries. 

Extensions/Lazy

• Fixed an issue in the extension framework where excluding a directory and all its contents did not correctly exclude its subdirectories from the build verification process. 

OFML Import

• The OFML engine in cm.abstract.engine.ofml has been migrated to support the DSI constraint-application logic. This resolves an issue where OFML products could have constraints applied incorrectly, causing options or features to be missing in Quick Properties when useDsiApplyConstraints is enabled. 
• Fixed problem with UV mapping for some OFML-imported objects that could result in incorrect material grain direction or texture orientation.