"Available" and "official release" are not the same thing. As of this writing, the official release notes page still shows 7.2.4325, and checking for updates from an installation of that build indicates that it's up to date. I'm not sure why release notes for non-official builds have started appearing here, but I personally don't think it's helpful to the majority of users here. The users who are MEANT to be using those releases almost certainly have a better way to become aware of updates than this thread. For everyone else on the regular production release track, posting about non-official builds seems likely to create confusion and possibly cause users to try to track down and use builds that might not be ready for production use.