CBP has just announced that the July 8th scheduled deployment for Entry Summary functionality to ACE has been postponed. Though just announced under a month ago, CBP has determined that a few more things need to be worked about before the deployment.
Read more of the history on this topic here.
Per CBP, “The rescheduled deployment date will be published in a Federal Register Notice at least 30 days in advance of the actual deployment/mandatory transition.”
A CSMS message from CBP should follow shortly.