Change: Names of groups are now case sensitive.
This means you can have three different groups named “stuff”, “Stuff”, and “STUFF”.
If you use the script version of the SelGroup command (which is run by typing the command name with a hyphen prefix -SelGroup), then you must enter the group name exactly as it appears in the dialog version of the SelGroup command.
All other Rhino model component names (layers, annotation styles, hatch patterns, line patterns, …) continue to work as they have for the past 20 years.
The change was made because some of our users are managing large sets of information using groups and the group names come from GIS data sets. These data sets use upper and lower case letters to distinguish between different collections of objects. The data sets are provided and maintained by large corporations and government entities and our users have no control over the name formats.
Please let us know if this change adversely affects any existing plug-ins or workflows that your are using.
Thank your for testing the Rhino WIP and helping us understand the impact of changes like this one.