{
  "number": 9170,
  "title": "Long-Term Viability of Protocol Extension Mechanisms",
  "authors": [
    "M. Thomson",
    "T. Pauly"
  ],
  "published": "2021-12",
  "status": "Informational",
  "stream": "IAB",
  "pages": 17,
  "formats": [
    "HTML",
    "TXT",
    "PDF",
    "XML"
  ],
  "abstract": "The ability to change protocols depends on exercising the extension and version-negotiation mechanisms that support change. This document explores how regular use of new protocol features can ensure that it remains possible to deploy changes to a protocol. Examples are given where lack of use caused changes to be more difficult or costly.",
  "keywords": [
    "Extensions",
    "versions",
    "grease"
  ],
  "draft": "draft-iab-use-it-or-lose-it-04",
  "doi": "10.17487/RFC9170",
  "urls": {
    "html": "https://rfc.dk/rfc9170/",
    "text": "https://rfc.dk/rfc9170.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc9170",
    "datatracker": "https://datatracker.ietf.org/doc/rfc9170/"
  },
  "text_modified": "2021-12-30T19:53:58.805271587Z"
}