DateRangeItem is now configurable to make end date value optional.

The 7.x Date module allowed the field to have an optional or required end date. Previously, the end date was always required for the DateRangeItem field. Now, the DateRangeItem field is configurable, allowing the end date value to be optional.

Key Changes:

• New configuration added to make the end date optional for DateRangeItem fields.
• The default behavior remains the same: the end date is required unless explicitly changed in the settings.
• Existing sites must update their configuration through the upgrade path to use this feature.

How to Update the Configuration:

To make the end date optional for a DateRangeItem field:

1. Go to the field settings for the relevant content type or entity.
2. Locate the new configuration option for the end date.
3. Update the setting to "Optional" as needed.
4. Save the configuration.