Currently for the 4.0 release, there are 35 bugs open. All bugs have been assigned. Quite a few of them are bugs related to build/install and docs. Please take a look at [1].
--Alex [1] https://issues.apache.org/jira/secure/IssueNavigator.jspa?reset=true&jqlQuery=project+%3D+CLOUDSTACK+AND+fixVersion+%3D+%22pre-4.0.0%22+AND+status+%3D+Open+ORDER+BY+priority+DESC&mode=hide
