If the user opens the board then clicks on backlog (left menu), he will see the option versions. These versions can be edited, however when the user selects a new Release Date on the calendar, the field isn't updated.
Please check the following video:

• Date picker.mp4

The same issue occurs while using the project's navigation sidebar.

Workaround:

• Access the administration of the project
• Click on Versions
• There it's possible to edit the dates