Webrtc library

Hello,

I have some question about webrtc. I browse Jitsi github. I saw webrtc library.
But this library is 2 years old. So, does jitsi use a so old library ?

How to compile this library ?

Thank you
Sebastien

Webrtc is in the browsers, we use whatever the browser is coming with.

Ok, I understand.
Thank you very much about this information.