Orange dot.

Carolparker wrote:

After updating my iPhone , a new orange dot appears every time I make a call - is this a new feature ? It’s never been there before. I know it means my mic is on.

It is on because you're on a call, new feature yes.

It means your microphone is in use. So, you'll see it anytime you're using an app that requires the mic, such as Voice Memos, Shazam, dictating a message in iMessage.

See the article linked to above for more details.