Most likely many developers ARE in the process of updating their apps already. But they shouldn't be penalized with bad reviews for an app running on an OS rel

Most likely many developers ARE in the process of updating their apps already. But they shouldn't be penalized with bad reviews for an app running on an OS release that is not considered supported yet. Also, it's hard for people to know if issues are related to the app itself, or underlying problems in the beta iOS release. But any negative review is going to be associated with the app, not the OS.