Release Notes for Coreform Cubit 2025.12
Coreform Cubit 2025.12 provides upgrades to Coreform Cubit’s graphical user interface and a number of bug fixes. (Download Coreform Cubit here.)
Released: 2 December 2025
Table of Contents
PySide6 upgrade
Since moving to the Qt6 GUI in 2025.8, we have also upgraded the Python GUI tool distributed with Coreform Cubit to PySide6. PySide6 is the officially-supported Python interface to Qt. Existing custom toolbars that use PyQt5 will need to be upgraded to PySide6. This upgrade is relatively simple; it may require modifying the import files.
DAGMC toolbar update
The DAGMC toolbar has been updated to use PySide6.
More information is available in our forum at DAGMC workflow toolbar
New custom toolbar save options
Custom toolbars are now created in their own directory space. It was previously possible to overwrite toolbars by placing multiple toolbars in the same directory. Toolbars are now placed in a subdirectory generated by the toolbar name.
For more information, see Toolbar Customization
Tire-meshing toolbar release
Coreform is releasing a 2D tire cross-section meshing toolbar. This tool is available at https://github.com/coreformllc/tire_cross_section_tool
Miscellaneous
Bug fixes for 2025.12
- The webcut offset option was missing from the non-classic Geometry/Volume/Webcut panel and is now available again.
- The Group Boolean option was missing from the non-classic Geometry/Group/Boolean and is now available again.
- A typographic error was fixed in the Meshing Power Tool to add a space between Merge and Tolerance.
- The command import cf_mcnp was deprecated in the last release and replaced with import mcnp. The GUI has been updated to reflect that change.
