Instagram now lets you send voice messages to other users. Given that voice messaging is a thing on virtually every other app of Instagram's size and stature, this has been a long time coming. However, it also moves Instagram further away from its origins.
How to Send a Voice Message on Instagram
To send a voice message on Instagram, just open an existing conversation or start a new conversation. Then, press and hold the microphone icon, and record your message. When you've finished recording, your voice message will appear in the chat as a waveform.
Voice messages can be up to one minute long, and you can send them in both private conversations and group chats. You'll have to be very sure the message is appropriate for everyone in a group before sending it though, or you may regret recording it.