Have the option to update the progress bar based on the status of a feature/epic.
There are several ways to configure how the progress % is calculated for features and epics, including using the shipped status
The % of child features completed (shipped status)
The % of the estimate that is remaining
The % to-dos completed
You can learn more here or let us know how you would like it to work differently.
For features, it seems the only way to calculate the % done is by requirements or to-do associated with it. I'm proposing that we have an option to base it off status of the feature itself. We often have features that don't have additional requirements or to-dos tied to them (and we don't do time tracking), in which case their progress will never automatically be updated. However, if we could tie it to status, the progress could populate as the statuses move along.