The Documentation for Azure Information Protection has been updated on the web and the latest content has an October 2017 (or later) date at the top of the article.
The doc updates this month continue to support the release announcements from Ignite 2017, with new and supporting documentation for the Azure Information Protection scanner, and additional information for Azure AD conditional access. The migration guide is also updated for new scripts that are now on the Download Center.
Read about it in the Enterprise Mobility & Security blog.