This is relatively simple:
I feel that it would be an improvement were it possible to write version notes via the Creator Hub and/or Open Cloud as one can currently do when they have the necessary permissions in Studio.
This would enable those working outside of the engine (e.g. via API) to provide an explanation of their changes, in addition to making it possible for one to more easily retroactively provide notes on changes made to a package regardless of their present location - thereby removing another barrier to documenting changes for the end user, increasing the likelihood that good communication practices will be adopted organically.