The special treatment of Studio preview urls has been removed from Commerce Hub API. Now preview urls are generated the same way as the other commerce related links via LinkTemplates and dynamic replacement values. Most of the changes took place within the commerce adapter workspaces. On the CMS side the PreviewUrlService has been deleted and there are changes in the CommerceStudioLinks.

If you didn't do any customization regarding Studio Preview Urls for commerce items, nothing needs to be changed on your side.

(CMS-20308)