In our operations, we have some periods where no changes are permitted in production. It would be beneficial to add blackout periods so that any release dates within the blackout periods can be highlighted/reported.
Its possible to created a saved view which shows all release dates in a single page, which makes it easy to manage all dates.
At this time, based on current priorities and community feedback, we are unlikely to make changes in this area. We also suggest the ability to potentially communicate/enforce this information outside of the application. We hope you can understand.