I am the assigned Gen-ART reviewer for this draft. For background on Gen-ART, please see the FAQ at <http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>. Please resolve these comments along with any other Last Call comments you may receive. Document: draft-ietf-qresync-rfc5162bis-09 Reviewer: David L. Black Review Date: January 26, 2014 IETF LC End Date: January 27, 2014 Summary: This draft is basically ready for publication, but has minor issues that should be fixed before publication. This draft consolidates RFC 4551 (IMAP Conditional STORE) and RFC 5162 (IMAP Quick Mailbox Resynchronization) into a single document and makes a few minor updates. It also updates the command line length recommendation in RFC 2683 to support the longer command lines that can occur with these extensions. As this is an update, I checked the diffs against RFC 4551 and RFC 5162; they look reasonable. I found one minor issue that should be relatively easy to address. Minor Issues: The command line length change in Section 4 applies to all IMAP commands, and hence affects old servers, including those that don't implement either of the extensions in this draft. That raises a backwards compatibility concern - what happens when a new client sends a > 1000 character command line to an old server that isn't expecting more than 1000 characters? One possibility would be to apply the larger length recommendation only after the client determines that the server supports at least one of these extensions. Nits/editorial comments: The update to RFC 2683 would be easier to find from the table of contents if the title of Section 4 were changed to "Long Command Lines (Update to RFC 2683)". idnits 2.13.01 got confused by the command line examples, and flagged a downref: ** Downref: Normative reference to an Informational RFC: RFC 2683 That downref appears to be ok and intended, as noted in the shepherd's writeup. Thanks, --David ---------------------------------------------------- David L. Black, Distinguished Engineer EMC Corporation, 176 South St., Hopkinton, MA 01748 +1 (508) 293-7953 FAX: +1 (508) 293-7786 david.black@xxxxxxx Mobile: +1 (978) 394-7754 ----------------------------------------------------