The XMPP Extensions Editor has received a proposal for a new XEP.
Title: TLS Channel-Binding Downgrade Protection
Abstract:
This specification provides a way to secure the SASL and SASL2 SCRAM
handshakes against channel-binding downgrades through TLS version
downgrades.
URL:
https://xmpp.org/extensions/inbox/tdp.html
The Council will decide in the next two weeks whether to accept this
proposal as an official XEP.