Hi Dave,

I just tried to save a new configuration (not in the update stream but
from scratch) and got this:

MCConfiguration(Object)>>doesNotUnderstand: #comment
MCConfigurationBrowser>>enterVersionCommentAndCompleteWith:nameForRestore:
MCConfigurationBrowser>>store

...
editWindow := Project uiManager
    edit: configuration comment
    label: ...

The configuration is a MCConfiguration, not a MCConfigurationExtended,
and thus it does not understand #comment.

I address you specifically Dave because this seems to have been
introduced with your MCConfigurationExtended in April 2020, so I hope
you might know where to fix it right away. :-)

Kind regards,
Jakob