Comment by arp242

It always seemed to me that converging everything to \n is relatively easy, whereas converging on \r\n is much harder. Existing \r\n files and protocols will continue to work: you just need to ignore the \r.

For example something like SMTP can be modified from "lines must end in \r\n" to "lines must end in \n, and trailing \r must be ignored". All existing SMTP will continue to work, although it may be a while before all servers reliably support \n of course.