The IESG has approved the following document: - 'Calendar Availability' (draft-ietf-calext-availability-04.txt) as Proposed Standard This document is the product of the Calendaring Extensions Working Group. The IESG contact persons are Alexey Melnikov, Ben Campbell and Alissa Cooper. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-calext-availability/ Technical Summary This document specifies a new iCalendar calendar component that allows the publication of available and unavailable time periods associated with a calendar user. This component can be used in standard iCalendar free-busy lookups, including iTIP free-busy requests, to generate repeating blocks of available or busy time with exceptions as needed. This document also defines extensions to CalDAV calendar-access and calendar-auto-schedule which specify how this new calendar component can be used when doing free-busy time evaluation in CalDAV. Working Group Summary The document was approved by 7 people to be a working group document. Two people commented the document while implementing it. The document was approved by 2 non-authors during the WGLC. No one objected. Actually one asked for clarifications and then approved the current version. Document Quality The document is well written. From Mailing list discussions two people have implemented these components. One implementers asked clarifications, and the document reflects these discussions. Personnel Daniel Migault is the document shepherd and Alexey Melnikov is the Responsible AD.