Subject: draft-ietf-httpbis-replay-03, "1. Introduction"

From: Julian Reschke <[email-masked]>
Date: Fri, 11 May 2018 14:26:52 +0200

"TLS 1.3 [TLS13] introduces the concept of early data (also known as 
zero round trip data or 0-RTT data)."

Maybe reference 
<https://tools.ietf.org/html/draft-ietf-tls-tls13-28#section-2.3> 
specifically here?