The port on the phone isn't the only difference, but some things are the same as they have always been.
There's a good chance the next phone you buy will support USB-C audio, even if it still has a "regular" 3.5mm headphone jack. That means we'll soon be seeing more headphones that have a USB-C connector because that's how this circle works — support a thing and companies will make the things. But there's a lot of confusion about using a USB port for audio and what's different than how we've been doing it for years. If you're into electronics and love getting down and dirty you can take a look at the (direct download link) but for the rest of us here's what you need to know.