We (Consultingwerk) have just logged an issue with Progress Software that has severe impact on the Visual Designer in OpenEdge 11.7.3. This regression disallows updating properties of ABL user controls in the Visual Designer. These properties are disabled in the Property Grid. This was working fine in OpenEdge 11.7.2. At this time we cannot recommend any customer using the Visual Designer to upgrade to OpenEdge 11.7.3 (the re-release). We're tracking the progress of this issue in our JIRA as SCL-2216