%% You should probably cite rfc9170 instead of this I-D. @techreport{iab-use-it-or-lose-it-01, number = {draft-iab-use-it-or-lose-it-01}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-iab-use-it-or-lose-it/01/}, author = {Martin Thomson and Tommy Pauly}, title = {{Long-term Viability of Protocol Extension Mechanisms}}, pagetotal = 19, year = 2021, month = jul, day = 14, abstract = {The ability to change protocols depends on exercising the extension and version negotiation mechanisms that support change. Protocols that don't use these mechanisms can find it difficult and costly to deploy changes.}, }