You can now schedule assets to publish or unpublish at a chosen date and time with a new Optionally Publish/Unpublish Later field on the publish/unpublish menu. While an asset is scheduled to be published, it won't be included in other publish jobs but it can still be indexed by other site content.
Fixed
Content Types with a related Publish Set will no longer result in a validation issue during a Site copy operation.
Fixed a scenario where a workflow resuming background task can become stuck and prevent publish jobs from starting/completing.