How does Discourse update the client on new posts from the server?

[sam (Sam Saffron)]

See also:

How discourse stays online (Message Bus, Faye, Long Polling)

Hi, sorry for bad English. I looked at source, but it’s hard to read and understand in big project. But as i understood Discourse using own implementation of communication over (Long polling (only(?))) to represent most actual data to users with MessageBus, why? Why were not used Faye?