I 'upgraded' to v4.6 from v4.1 but regret it quite a bit. First of all, v4.6 takes forever to connect and sign in. Once you establish a chat, you can watch your keystrokes appearing in the window one--by--one. Where are all those CPU cycles going?? And the app has unexpectedly quit on me numerous times just as it has for other reviewers. This is likely linked to the slowness--there seems to be some bad programming going on here. If AOL could clean up their code, this could become a nice application.