Option to write feedback from Settings->System -> feedback is no longer there for 2.5.1 - polish language 🙁
And I have a rather important feedback to report: while using third party Dialer app I can’t initiate any phone call. I tried three different dialer apps. I have set all permissions to yes and have set third party app as default phone app. One of the app (Right Dialer by Goodwy) is displaying this information as a popup “Error: java.lang.SecurityException: Not allowed to start activity Intent {act=andr…”. In Beta 2.5.0 third party dialer app was working without problems.