Calendar subscription upgrades

Document Type Expired Internet-Draft (calext WG)
Last updated 2020-05-06 (latest revision 2019-11-03)
Replaces draft-douglass-subscription-upgrade
Stream IETF
Intended RFC status Proposed Standard
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document (wg milestones: Apr 2019 - Adopt a document for..., Dec 2020 - Submit Subscription ... )
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Yes
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This specification introduces an approach to allow subscribers to calendar feeds to upgrade to a more performant protocol. This specification updates [RFC5545] to add the value DELETED to the STATUS property. This specification also updates [RFC7240] to add the subscribe- enhanced-get and limit preferences.


Michael Douglass (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)