Amongst the suggestions and discussion is the idea of adding a Template Version to reference the version of the Parent-Theme for which the Child-Theme has been confirmed to work with by its author.
This struck me as an opportunity to have a look in core to see if this was being addressed; or, if I could offer a patch to address the idea. Several searches under various different criteria for this idea yielded no results … I didn’t expect any.
So, I proceeded to write and submit the patch. You can read the Trac ticket here: #16395
I believe this will be a useful piece of information that can be added to the style.css header block, if accepted.
Now it’s just a matter of time … what are your thoughts? Feel free to add them here for my patch idea; or, join the discussions on the “Make” site.