The IESG has approved the following document: - 'YANG Module Library' (draft-ietf-netconf-yang-library-06.txt) as Proposed Standard This document is the product of the Network Configuration Working Group. The IESG contact persons are Benoit Claise and Joel Jaeggli. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-netconf-yang-library/ Technical Summary This draft presents YANG Library, which provides information about all the YANG modules used by the network management server. Previously, this information was included as part of hello message exchange and even then it did not provide all the information, e.g. revision date of the deviation modules, information on submodules and their revisions. Working Group Summary This document is a companion document to YANG 1.1 (draft-ietf-netmod-rfc6020bis) although it does not preclude its use with YANG 1.0. By caching the information, clients can minimize retrieval of this frequently changing information from the server. Document Quality This document was extensively reviewed and comments were provided both in IETF meetings and on the mailing list. Personnel The document shepherd is Mahesh Jethanandani. The responsible AD will be Benoit Claise.