This is an announcement of an IETF-wide Call for Comment on draft-iab-protocol-transitions-05. The document is being considered for publication as an Informational RFC within the IAB stream, and is available for inspection at: https://datatracker.ietf.org/doc/draft-iab-protocol-transitions/ The Call for Comment will last until 2017-02-01. Please send comments to architecture-discuss@ietf.org and iab@iab.org. Abstract Over the many years since the introduction of the Internet Protocol, we have seen a number of transitions from one protocol or technology to another, throughout the protocol stack. Many protocols and technologies were not designed to enable smooth transition to alternatives or to easily deploy extensions, and thus some transitions, such as the introduction of IPv6, have been difficult. This document attempts to summarize some basic principles to enable future transitions, and also summarizes what makes for a good transition plan.
