Use of TLS 1.3, which fixes some known deficiencies in TLS 1.2, is
growing. This document specifies that no changes will be approved
for TLS 1.2 outside of urgent security fixes (as determined by
TLS Working Group consensus), new TLS Exporter Labels, and
new Application-Layer Protocol Negotiation (ALPN) Protocol IDs.
This applies to TLS only; it does not apply to DTLS (in
any DTLS version).