@misc{rfc9368, series = {Request for Comments}, number = 9368, howpublished = {RFC 9368}, publisher = {RFC Editor}, doi = {10.17487/RFC9368}, url = {https://www.rfc-editor.org/info/rfc9368}, author = {David Schinazi and Eric Rescorla}, title = {{Compatible Version Negotiation for QUIC}}, pagetotal = 15, year = 2023, month = may, abstract = {QUIC does not provide a complete version negotiation mechanism but instead only provides a way for the server to indicate that the version the client chose is unacceptable. This document describes a version negotiation mechanism that allows a client and server to select a mutually supported version. Optionally, if the client's chosen version and the negotiated version share a compatible first flight format, the negotiation can take place without incurring an extra round trip. This document updates RFC 8999.}, }