This document retires and obsoletes the Tao of the IETF as an IETF-maintained document.It includes the rationale for the retirement and the last edition of the Tao as published via the processdescribed in RFC 6722. I see no operational or manageability issues with retiring the Tao of the IETF. This document is READY, but there are some nits. The most obvious one i that Section 2.1 messes some of the dates and RFC numbers. I suggest the following edit: OLD: The Tao was originally published as [RFC1391] in January 1993. In the following 17 years, four additional versions of the Tao were published as RFCs: [RFC1539] in October 1998, [RFC1718] in November 1994, [RFC3160] in August 2001, and [RFC4677] in September 2006. In August 2012, [RFC4677] was published to document the process for publishing the Tao as a webpage so that it “can be updated more easily”. NEW: The Tao was originally published as [RFC1391] in January 1993. In the following 17 years, four additional versions of the Tao were published as RFCs: [RFC1539] in October 1993, [RFC1718] in November 1994, [RFC3160] in August 2001, and [RFC4677] in September 2006. In August 2012, [RFC6722] was published to document the process for publishing the Tao as a webpage so that it “can be updated more easily”.