Cub file backwards compatability?

Coreform Cubit Version: 2023.8 / 2021.11 / 15.7
Platform: linux

Issue

Previous versions of cubit (2021.11) saved *.cub files were still able to open in 15.7. Starting with 2023 we are noticing we are unable to open these files backwards. Did something change in the cub file generation?

Thanks!

Hi @vtnick,
sorry for the late reply. As far as i know the .cub data structure will change with newer versions as new features and new versions of the geometry engines must be handled too.
Also in 2023 the usplines functionality was removed from cubit and moved to coreform flex for further development. That definitely had an impact how the .cub are imported and exported.