I have reviewed this document as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written with the intent of improving the operational aspects of the IETF drafts. Comments that are not addressed in last call may be included in AD reviews during the IESG review. Document editors and WG chairs should treat these comments just like any other last call comments. Document: draft-ietf-dhc-v6only-03 Reviewer: Sheng Jiang Review Date: 2020-07-1 IETF LC End Date: 2020-07-02 This standard track document specifies a DHCPv4 option to indicate that a host supports an IPv6-only mode and willing to forgo obtaining an IPv4 address if the network provides IPv6 connectivity. It is well-writen and reader-friendly. It also explains the reason why needs to signal IPv6-only support in DHCPv4 packets. The document also updates RFC 2563, which is clearly states in the document header. Summary: Ready Major Concerns: None. Minor Concerns: None. Regards, Sheng