Release date changes are considered a metadata update can either be actioned via XML update or email request to email@example.com.
In order to update metadata, including original release date, via delivery/XML please make any changes necessary to the original XML and redeliver this, with or without the <update> tag as the album action in the XML.
Example using <update> tag:
Please see the following article for more information about delivering updates to Beatport via XML:
*Any requests made to firstname.lastname@example.org must be made at the supplier level and will not be actioned without supplier approval.