Plans to put ARC out to pasture
RFC 8619 was published in July 2019 with the status of Experimental and describes the Authenticated Received Chain (ARC) protocol. On 16 April 2026 the DMARC Working Group (who originated ARC) voted to re-charter the group for the sole purpose of changing the status of the RFC to Historic and declaring the ARC experiment concluded. I was one of those who voted in favor. The WG has six months to agree on actually doing this. If successful then there will be no further updates to the specification and deployment will not be recommended. ...