This is a review of the YANG modules in draft-ietf-netmod-yang-module-versioning-13. This document contains two simple YANG modules: ietf-yang-revisions and ietf-yang-library-status, which are clearly defined. 1) Data examples The module ietf-yang-library-status has added only two leaves. Even though the augmentation is simple, I am still wondering if it would be beneficial to provide a data example in the Appedix 2) Both ietf-yang-revisions and ietf-yang-library-status are defined in Section 7 “Module Versioning Extension YANG Modules”. Should ietf-yang-library-status be put into a different section? Thanks, - Xufeng