Account security, email and profile updates

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You enter your six-digit authenticator code before approving a connected app.
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You can see which activity emails Unsubscribe turns off.
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You get a clear choice if your username cannot be changed.
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Personal settings help now matches the options available to your account.
Improved
Connected app approvals ask for your authenticator code.
If you use an authenticator app, enter your six-digit code on the Enter code step you use at sign in. The approval request and Approve or Cancel options stay hidden until you enter the code. If you don't use two-factor sign in, nothing changes.
Unsubscribe explains which activity emails stop.
When you press Unsubscribe in an activity email, you see that emails about comments, replies, mentions, uploads, project updates and all other activity will stop. Push notifications, the notifications bell and invite emails keep working. What Unsubscribe turns off is unchanged.
Fixed
Username changes no longer fail silently.
If your username can't be changed at that moment, Edit profile says so under Username. When you select Save, you can choose whether to save your other changes without changing your username.
Personal settings help matches your account.
The Personal settings help page and the help Assistant no longer describe notification options, emails or links that don't apply to your account.