Aha! currently has an option to present Epics(features) and user stories in a kanban view, which is very helpful see too where you at in terms of flow and work status. It would be really helpful to have the option to display a Release content in a Kanban view to easily see the status of each feature/US in that release.
I have just added an idea similar to this A-I-12101 but rather than just allow release to be chosen on a filter to enable grouping by release in the same way as you can group by 'Assigned to'
Thank you for reaching out. The workflow board (kanban view) includes a release filter at the top. Does using that accomplish what you are looking for?