Just a minor suggestion.
On Hosted, when there’s a new version, at sign-in there is a message something like “New version of app, Refresh to activate. OK”
This is ambiguous whether clicking the OK refreshes or not (I think it probably does but not confirmed).
If the message said “New version of the app. Click here to refresh. OK” it would be clearer and I wouldn’t feel I have to refresh again just in case.